• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a one-component, silane-modified, water-, solvent- and softener-free parquet adhesive and its use for bonding parquet, wood flooring and wood-based panels with all common in interior design, even problematic substrates.
    公开号:AT13210U1
    申请号:TGM9006/2011U
    申请日:2011-08-19
    公开日:2013-08-15
    发明作者:Frank Gahlmann
    申请人:Stauf Klebstoffwerk Gmbh；
    IPC主号:
    专利说明:

    Austrian Patent Office AT13 210U1 2013-08-15
    The present invention relates to a one-component, silane-modified, water, solvent and plasticizer-free parquet adhesive and its use for bonding parquet, wood flooring and wood-based panels with all common in interior design, even problematic substrates.
    Parquet adhesives based on silane-modified oligomeric compounds typically have the advantage of being processing and application-friendly and free of water, solvents and hazardous substances such as isocyanates, but formulated the disadvantage with migratory components such as plasticizers and / or non-reactive liquid extenders be. The dissolving properties of these additives require significant restrictions on adhesion to susceptible substrates such as mastic asphalt. In addition, they can cause a connection and dissolution in the joint area between two wooden floor elements in accordance with susceptible wood floor surface treatment agents such as acrylic or polyurethane parquet water paints. The parquet adhesive according to the invention overcomes these problems by its specific composition described in claim 1 based on at least two silane-terminated moisture-reactive polyalkylene oxide oligomers with at least two mineral components and suitable curing catalyst, drying agent and adhesion promoter. Preferably, additionally at least one UV light absorber, antioxidant and theological additive are included. The terminal silane groups of the at least two polyalkylene oxide oligomers are connected to the oligomeric skeleton via alkyl groups. The two polyakylene oxide oligomers and the two mineral components are present in defined mixing ratios and are characterized in terms of type, structure, surface condition and molecular weight or particle size. Desiccants and adhesion promoters contain moisture-reactive silane groups, preferably trimethoxysilane groups.
    The parquet adhesive according to the invention is free of water, solvents, hazardous substances, plasticizers and non-reactive liquid extenders. It has the application and processing-friendly advantageous properties of conventional silane-modified parquet adhesives. In addition, it has excellent adhesion properties on all common in interior design, even problematic substrates. Wood floor surface treatment agents are not dissolved or attacked by him.
    The present invention relates to a one-component, silane-modified, water-, solvent- and softener-free parquet adhesive and its use for bonding parquet, wood flooring and wood-based panels with all customary in interior design, even problematic substrates.
    When bonding wood flooring, especially parquet, adhesives are required that allow easy handling and processing, involve no health risks, are environmentally friendly, ensure a non-positive, firm connection between surface wood and substrate, adhere equally well to all substrates and do not cause dimensional changes and / or damage to the wood flooring.
    These requirements are met by the adhesives used for bonding wooden floor elements, in particular parquet, usually used in different degrees. In particular, they can be divided into the following classes: dispersion adhesives, solvent adhesives, powder adhesives, methylene diisocyanate (MDI) based two component polyurethane adhesives, MDI based one component polyurethane adhesives, toluene diisocyanate (TDI) based polyurethane adhesives and silane modified polymeric adhesives (SMP adhesives ).
    Since the fifties, dispersion adhesives based on vinyl acetate homopolymer dispersions are used for parquet bonding. They bind by evaporation of water, whereby the adhesion is based solely on physical interactions of the molecules (dipole-dipole, van der Waals interactions). A disadvantage of these parquet adhesives used to date is the high water content, which can lead to significant swelling of the wood and consequently to dimensional changes of the parquet and other wood flooring 1/17 Austrian Patent Office AT13 210U1 2013-08-15. Another disadvantage is the short time that remains for placing the wood flooring element after the application of the adhesive on the ground (open time) and the sometimes only moderate underground adhesion. The high glass transition temperature of the vinyl acetate homopolymers also necessitates the use of coalescents in order to achieve a filming of the dispersion at the processing temperature (room temperature). Coalescents are volatile organic compounds (VOCs) that are released into the indoor air even after a long period of time, even after parquet bonding, and can therefore pose environmental and health risks.
    A further development of the dispersion parquet adhesives based on vinyl acetate homopolymer dispersions are the parquet adhesives based on vinyl acetate-ethylene copolymer dispersions. For these similarly formulated adhesives, the lower glass transition temperature of the copolymer dispersions does not require coalescing agents. In addition, special dispersions based on styrene-acrylic acid ester copolymers are also used today. These adhesives can also be formulated without coalescents due to the low glass transition temperature of the dispersions. However, the wood-swelling properties, the low open times (10 to 20 minutes) and the only moderately pronounced adhesion properties remain disadvantageous.
    In the late sixties, solvent-based synthetic parquet adhesives were introduced. These adhesives are based on solutions of vinyl acetate homopolymers in a solvent mixture which may contain methanol, ethanol, methyl acetate, ethyl acetate and acetone. They bind very quickly by evaporation of the solvent. The advantage of these parquet adhesives, which are still used today, is about 50 to 70% reduced wood-swelling properties compared to dispersion parquet adhesives. A disadvantage, however, is the high content of solvents, the emission of which means a burden for the processor and the environment, and consequently the use in interiors is limited. The products are usually characterized as highly flammable and harmful or irritating. In addition, the open times of these parquet adhesives are particularly short (5 to 10 minutes) and thus detrimental to the processing process. The adhesion properties are better than those of the dispersion adhesives.
    A with respect to the solvent emissions advantageous development of these parquet adhesives can be found in a patent Stauf adhesive GmbH (US 7,420,009 B2: LOW EMISSION ADHESIVE COMPOSITION BASED A SOLVENT).
    Another development of the dispersion parquet adhesives are powdered adhesive formulations. These are based on re-emulsifiable dispersion powders - usually vinyl acetate-ethylene copolymers. They contain a mineral component, which may contain calcium sulfate hemihydrate, Portland cement or aluminate cement. These adhesives are 2-component systems consisting of powder and another component. The second component which is mixed with the powder component is water or a polymer dispersion. The advantage of this parquet adhesive class is the chemical water binding of the mineral component. The unfavorable wood swelling of the dispersion adhesives is thereby reduced to approximately the level of the solvent parquet adhesives. A disadvantage is the limited pot life between the mixing of the components and the processing end, in which the chemical reaction takes place, which increasingly causes an increase in viscosity. The loading time (open time) between the adhesive application and the insertion of the wooden floor element is just as short as with the dispersion parquet adhesives. Also disadvantageous are the inherent inherent in all two-component systems difficulties that are in the additional mixing effort, in the risk of non-homogeneous mixing and in an inadequate setting of the mixing ratio by the user. The adhesion properties correspond to those of the dispersion parquet adhesives.
    In the nineties reaction adhesives were introduced polyurethane-based for bonding parquet. Initially, they were 2-component systems consisting of a resin component and an isocyanate hardener. The binder in the resin component is a hydroxy functional polyol AT13 210U1 2013-08-15 the formulated resin component additionally contains water scavengers, mineral fillers, catalysts and additives. The isocyanate hardener component usually consists of technical, oligomeric methylene diphenyl diisocyanate (MDI, often referred to as polymer MDI). An advantage of these adhesives is compared to powder parquet adhesives again reduced and thus no longer relevant for practice wood-swelling effect and the longer open times of about 30 to 60 minutes. Also advantageous are the strength and adhesion properties that ensure an extremely frictional connection of the plank wood with all common in interior design, even problematic substrates. Disadvantageous, however, is the risk to health and the environment based on the isocyanate content, which may arise, inter alia. in the hazardous substances labeling according to the German Hazardous Substances Ordinance or the international GHS system. Thereafter, these adhesives are classified as harmful, irritant and sensitizing. Another disadvantage is the inherent problems of all two-component systems, as already described in the powder adhesives.
    Shortly after the two-component polyurethane adhesives reactive einkompo-nentige polyurethane parquet adhesives were developed. These adhesives are based on isocyanate group-containing moisture-reactive prepolymers based on methylene diphenyl diisocyanate (MDI), which often still contain oligomeric and monomeric MDI. Other components of these adhesives are mineral fillers, catalysts and additives. Advantageous compared to the two-component polyurethane adhesives are the further extended open times, which together with the one-component facilitate the handling and processing of the adhesive. The wood-swelling effect corresponds to that of the two-component polyurethane adhesives and is accordingly unproblematic. The adhesion properties correspond to those of the solvent parquet adhesives and ensure good adhesion to common substrates. However, a disadvantage of the one-component polyurethane adhesives is still the risk to health and the environment, which corresponds to that of the two-component polyurethane parquet adhesives and is based on a residual content of monomeric and oligomeric MDI in the prepolymers.
    End of the nineties, one-component reaction adhesives based on toluene diisocyanate oligomers (TDI adhesives) were introduced for the bonding of wood flooring. The advantage of these adhesives compared to the established MDl-based polyurethane adhesives is that they are not classified as harmful, irritating or sensitizing and are not subject to labeling requirements under the German Hazardous Substances Ordinance and the international GHS labeling system. This property is due to their extremely low residual content of monomeric TDI. In terms of open time and wood-swelling properties, they are similar to MDI-based polyurethane adhesives. A disadvantage in comparison to these, however, are the only moderately pronounced adhesion properties. Although the adhesion of these adhesives, apart from physical interactions, is also due to the formation of covalent chemical bonds, it is no better than the dispersion and powdered parquet adhesives.
    The latest development are parquet adhesives based on silane-modified oligomeric compounds, so-called SMP adhesives (sometimes referred to as hybrid adhesives). These adhesives are characterized by oligomeric organic compounds (often referred to as prepolymers), the moisture-reactive silane groups, usually dimethoxymethylo-the trimethoxysilane, wear. After contact with moisture from the ground, the plank wood or the air, the moisture-reactive silane groups crosslink by hydrolysis and subsequent condensation to form a three-dimensional siloxane network, the adhesive matrix.
    Other components of these adhesives are liquid extenders, plasticizers, mineral fillers, water scavengers, adhesion promoters, catalysts and other additives. For the bonding of parquet, silane-modified adhesives generally have the following advantages: - one-component 3/17 Austrian Patent Office AT13 210U1 2013-08-15 [0018] free from water and solvents [0019] sufficiently long open times 0020] - no practice-relevant wood-swelling effect - no classification as hazardous to the environment or health-threatening and thus free of labeling according to the German Hazardous Substances Regulation and the international GHS-labeling system The pseudoplastic rheology of SMP parquet adhesives is furthermore advantageous. In practice, this means that the adhesives do not run and can be applied well with a toothed spatula. Drawn adhesive beads remain dimensionally stable and thus provide an important prerequisite to be able to bridge smaller cavities between wood flooring and substrate.
    Silane-modified parquet adhesives typically contain plasticizers and / or non-reactive liquid extenders, which reduce the viscosity of the adhesive and guarantee necessary processing properties. Unfortunately, they are also responsible for a number of application problems and limitations. The dissolution properties of these migratory liquids require, in particular, a solubilization of mastic asphalt as a substrate and a dissolution of dispersion primers typically used as a primer based on vinyl acetate-ethylene, styrene-acrylate or acrylic acid ester copolymers. Therefore, in the case of silane-modified parquet adhesives, adhesion problems on this type of substrate are generally to be expected - a circumstance that has hitherto been opposed to greater acceptance and use of these parquet adhesives. Furthermore, due to the migration of liquid constituents for correspondingly vulnerable coatings and / or treatments of the plank wood, such as parquet water paints, the risk of contact or dissolution, which can lead to unsightly deterioration of the appearance especially in the adhesive joint area between two parquet elements.
    Cyclohexanedicarboxylic acid derivatives as plasticizers for silane-modified adhesives and sealants are disclosed in detail in patent document WO 2010/063740 A1.
    Starting from this prior art, it is an object of the present invention to provide a parquet adhesive is available, which has all or more of the following advantages: It should be easy to use, ensure a sufficiently long open time, have no relevant wood-swelling effect, Do not endanger health and environment, be free of water, solvents, plasticisers and non-reactive liquid extenders, have good adhesion properties on all surfaces that are common in interior finishes and can not be dissolved, and do not dissolve wood floor surface treatment agents. Another object of the invention is to provide the use of the parquet adhesive according to the invention for the bonding of parquet, wood flooring and wood-based panels under the stated objectives for the parquet adhesive.
    This object is achieved by the one-component, silane-modified, water-solvent and plasticizer-free parquet adhesive according to claim 1, and its use according to claim 12. Advantageous developments of the parquet adhesive according to the invention and the use of the invention are given in the respective dependent claims.
    The parquet adhesive according to the invention is a silane-modified parquet adhesive with significantly improved adhesion properties and low dissolving power to substrates. He has the processing and application advantages of the prior art corresponding silane-modified adhesives without containing their migratory non-reactive constituents and have the associated adhesion and release problems. All liquids contained in the adhesive of the invention contain terminal silane groups and are covalently incorporated into the polysiloxane network. The possibility of completely dispensing with non-reactive liquids and the associated advantageous properties of the parquet adhesive according to the invention are essentially due to a suitable combination of at least two selected base polymers having at least two special mineral components. The base polymers are characterized in terms of structure and molecular weight and the mineral components in terms of type, surface texture and particle size. In addition, the selection of a suitable curing catalyst, desiccant and adhesion promoter is responsible for the advantageous adhesive properties.
    According to the invention contains the one-component, silane-modified, water-solvent and plasticizer-free parquet adhesive that contains no non-reactive liquid extenders and is suitable for bonding parquet, wood flooring and wood-based panels with all customary in interior design, also solvable problematic substrates, the following materials or [0034] [0039] [0039] [0039] [0039] [0039] [0039] [0039] [0039] [0039] [0041] [0041] a) 12 to 36% by mass of a moisture-reactive silane-terminated polyalkylene oxide binder having an average molecular weight of 6,000 to 20,000 g / mol, wherein the silane functions via alkyl groups are connected to the oligomeric backbone, b) 2 to 18 mass percent of a moisture-reactive silane-terminated polyalkylene oxide binder having an average molecular weight of 300 to 3000 g / mol, wherein the silane functions via alkyl groups with the oligomeric Grundgerüs c) 30 to 60% by mass of a surface-hydrophobized marble powder having an average particle diameter of 0.8 gm to 4.0 gm, d) 2 to 10% by mass of a surface-hydrophobized chalk powder having a mean particle diameter of 0.2 to 0.7 μm e) 0.1 to 1.0% by mass of a curing catalyst, f) 0.2 to 3% by mass of a moisture-reactive silane-modified desiccant, g) 0.2 to 3% by mass of a moisture-reactive silane-modified adhesion promoter, the percentages being based on the mass of the ready-to-use parquet adhesive and the sum of components a) to g) is 46.5% to 100%.
    In particular, the parquet adhesive may have the following proportions of constituents: a) 23 to 33% by mass of a moisture-reactive silane-terminated polyalkylene oxide binder having an average molecular weight of 7,000 to 13,000 g / mol, the silane functions being linked to the oligomeric backbone via alkyl groups, b) 7 to 13% by mass of a moisture-reactive silane-terminated polyalkylene oxide binder having an average molecular weight of from 700 to 1300 g / mol, the silane functions being linked to the oligomeric backbone via alkyl groups, c) from 48 to 60% by mass of a surface-hydrophobicized marble powder having a mean particle diameter of 1.0 μm from 3.0 to 3.0 μm, d) from 3 to 7% by weight of a surface-hydrophobized chalk powder having a mean particle diameter of from 0.3 to 0.6 μm, e) from 0.15 to 0.29% by weight of a curing catalyst, f) from 0.5 to 1, 5 mass% of a moisture-reactive silane mode g) 0.5 to 1.5% by mass of a moisture-reactive silane-modified Haftver intermediary, wherein the percentages refer to the mass of the ready-to-use parquet adhesive and the sum the constituents a) to g) is 82.15% to 100%.
    A preferred embodiment provides that the mass ratio of component a) to component b) is 1: 1 to 8: 1 and the mass ratio of component c) to component d) is 5: 1 to 20: 1. It is particularly advantageous if the mass ratio of component a) to component b) is 2: 1 to 4: 1 and the mass ratio of component c) to component d) is 8: 1 to 18: 1.
    As binder and base polymer, the parquet adhesive according to the invention contains from 12 to 36% by mass, preferably 23 to 33% by mass, most preferably 28% by mass of a moisture-reactive silane-terminated polyalkylene oxide whose silane functions are linked to the oligomeric backbone via alkyl groups. Preferably, the oligomeric backbone is a polypropylene oxide and the silane functions are dimethoxymethylsilane groups. The average molecular weight of the oligomer is between 6,000 and 20,000 g / mol, preferably between 7,000 and 13,000 g / mol, most preferably 10,000 g / mol.
    As binders and reactive diluents, the parquet adhesive according to the invention contains 2 to 18% by mass, preferably 7 to 13% by mass, very particularly preferably 10% by mass of a moisture-reactive silane-terminated polyalkylene oxide whose silane functions are linked to the oligomeric backbone via alkyl groups. Preferably, the oligomeric backbone is a polypropylene oxide and the silane functions are dimethoxymethylsilane groups. The average molecular weight of the oligomer is between 300 and 3,000 g / mol, preferably between 700 and 1,300 g / mol, most preferably 1,000 g / mol.
    At least one mineral component is a marble powder having an average particle size of 0.8 to 4.0 pm, preferably 1.0 to 3.0 pm, most preferably 2.0 pm. The marble powder is 30 to 60 percent by mass, preferably 48 to 60 percent by mass, most preferably 55 percent by mass in the parquet adhesive according to the invention.
    At least one further mineral component is a chalk powder having an average particle size of 0.2 to 0.7 pm, preferably 0.3 to 0.6 pm, most preferably 0.4 pm. The chalk powder is contained in the parquet adhesive according to the invention to 2 to 10 mass%, preferably 3 to 7 mass%, most preferably 4 mass%.
    A substitution of chalk and / or marble by precipitated calcium carbonate powder is not possible because they have smaller than the particle sizes required according to the invention. Likewise, the substitution of chalk and / or marble with other calcium carbonate rocks, such as limestone, does not lead to the advantages of the present invention.
    The surfaces of the chalk and marble particles are hydrophobic, wherein the hydrophobing either by treatment with one or more fatty acids and / or their salt (s), preferably by treatment with stearic acid and / or stearate or by silanization, preferably by reaction with a reactive silane, very particularly preferably by reaction with aminosilane.
    To accelerate the curing process, the parquet adhesive according to the invention contains 0.1 to 1.0 percent by mass, preferably 0.15 to 0.29 mass percent, most preferably 0.29 mass percent of a curing catalyst. Organo-transition metal compounds are preferred curing catalysts; very particular preference is given to di-butyltin diacetylacetonate.
    As a water scavenger, the parquet adhesive according to the invention contains 0.2 to 3 mass percent, preferably 0.5 to 1.5 mass percent, very particularly preferably 0.8 mass percent of an AT 13 210 Ul 2013-08-15 moisture-reactive silane-modified desiccant. Trimethoxysilane-terminated alkenes are preferably used; Very particular preference is given to vinyltrimethoxysilane.
    To improve the adhesion properties of parquet adhesive according to the invention contains 0.2 to 3 mass%, preferably 0.5 to 1.5 mass%, most preferably 1.0 mass% of a moisture-reactive silane-modified adhesion promoter. Trimethoxysilane-terminated aminoalkyl compounds are preferably used; very particular preference is given to 3-aminopropyltrimethoxysilane.
    To improve the durability of parquet adhesive according to the invention may additionally contain antioxidants and / or UV light absorbers (photostabilizers) of up to 3 percent by mass, preferably 0.2 to 1 mass percent, most preferably 0.21 mass percent.
    The antioxidants used are preferably sterically hindered phenols, preferably 3,5-bis (1,1-dimethylethyl) -4-hydroxybenzylpropanoic acid C7-C9 isoalkyl ester.
    Sterile hindered amines are preferably used as UV light absorbers, preferably bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate or methyl-1,2,2,6,6-pentamethyl -4-piperidyl; very particular preference is given to a mixture of these sebacates.
    As a rheological additive, the parquet adhesive according to the invention may additionally contain up to 3% by mass, preferably 0.3 to 1.3% by mass, most preferably 0.7% by mass of a wax, preferably a polyamide wax.
    The individual constituents of the adhesive composition according to the invention may each be contained as pure substances or, if the applicable criteria for the respective component such as total content, mass ratio, molecular weight, structure, chemistry, particle size and / or surface finish are satisfied, as a mixture of similar substances.
    To improve or adjust the appearance, rheology and / or stability of parquet adhesive according to the invention may contain other additives such as pigments, dyes, organic / inorganic fillers, resins, waxes or preservatives.
    The use of plasticizers and non-reactive liquid extenders is completely eliminated due to their migration ability and Löseeigenschaften. The composition of the parquet adhesive according to the invention has the effect that this does not have a disadvantageous effect but that the advantageous properties of silane-modified parquet adhesives remain. In addition, the adhesion properties are significantly improved and the undesired dissolution of substrate surfaces is avoided.
    The parquet adhesive of the invention has a number of processing and application-technical advantages, which combines in this combination, no other parquet adhesive on it: · One-component · free of plasticizers and non-reactive liquid constituents and of water and Solvents · sufficiently long open time · no practice-relevant wood-swelling effect · free from substances harmful to health and the environment [0067] · free from labeling according to the current GHS labeling system and German
    Dangerous substances regulation · pronounced pseudoplastic rheology with suitable processing viscosity · easy application by means of toothed spatula and structure-resistant adhesive beads · excellent adhesion properties on all wet and dry indoor removal usual, even problematic surfaces: no dissolving or attacking of wood floor surface treatment agents, in particular parquet water varnishes. very wide field of application simple and safe handling and application The parquet adhesive according to the invention is one-component and free from water, solvents Plasticizers, non-reactive liquid extenders and other migratable ingredients.
    The open time is in the range of 60 to 100 minutes (DIN EN 14293: 2006-10), whereby a comparatively long processing time is guaranteed.
    Due to its freedom from water and solvents, there is no practice-relevant wood-swelling effect of the adhesive.
    The absence of solvents and the complete abandonment of the addition of plasticizers, isocyanates and other potentially harmful substances requires the health and environmental compatibility of the parquet adhesive according to the invention. This can be deduced from the fact that the adhesive does not require labeling in accordance with the current German Hazardous Substances Ordinance and the international GHS Hazardous Substance Labeling System.
    The pronounced pseudoplastic rheology and a viscosity between 60,000 and 120,000 mPa-s (test conditions according to DIN EN ISO 2555: 2000-01, 20 revolutions per minute) together with the one-component guarantee easy processing of the adhesive according to the invention. The adhesive is easy to apply with a toothed spatula and allows dimensionally stable adhesive beads up to a height of 10 mm.
    The parquet adhesive of the invention has excellent adhesion to all common in interior surfaces such as mastic asphalt, concrete, cement, cement screed, cementitious screed, cement mortar, cementitious wood fiber, ceramics, natural stone, calcium sulfate screed, calcium sulfate flow, magnesite screed, wood, wood material, plywood, cork, gypsum , Gypsum fiber, gypsum plasterboard, hardboard, putty, primers, textile fibrous material, natural and synthetic polymeric material or a combination of these substrates. The adhesion is also limited to substrates containing up to 8% by mass of water, e.g. damp concrete or cement screed, guaranteed.
    Commercially available parquet, wooden floor coverings and / or wood-based panels, which consist entirely or partially of European hardwood and / or softwood, non-European wood or a combination of these types of wood, are glued securely and non-positively to the ground.
    Wood floor surface treatment agents, in particular parquet water-based paints, are not dissolved or attacked by the parquet adhesive according to the invention.
    The very broad field of application, the ease of use and the advantageous processing properties of the parquet adhesive according to the invention guarantee a simple and safe application. The user does not need any technical and / or chemical technical or prior knowledge. Thus, the parquet adhesive according to the invention is even suitable for use by laymen.
    In Table 1, an embodiment of the parquet adhesive according to the invention is given with a particularly preferred composition.
    In Table 4 and 5, the compositions of the commercial parquet adhesives SMP-920 and SMP-930 (Stauf adhesive GmbH) are summarized. In comparative studies they serve as a reference to the adhesive according to the invention.
    In their composition, the two commercially available parquet adhesive 8/17 Austrian Patent Office AT13 210U1 2013-08-15 differ
    Substances of the parquet adhesive according to the invention substantially by a different composition of base polymer and mineral components and their plasticizer content. Surface hydrophobized marble powder - indispensable main mineral component of the adhesive according to the invention - is not included in the commercial adhesives. On the other hand, both commercially available adhesives contain limestone powder and in some cases also precipitated calcium carbonates and silica, which does not occur in the parquet adhesive according to the invention. Also, the mean particle diameters and their distribution profiles differ between inventive adhesive and the commercial formulations. Thus, e.g. Particle sizes of mineral components of > 4 pm not included in the parquet adhesive according to the invention.
    Another difference is the plasticizer content, which is 15% by mass for SMP-930 and 20% by mass for SMP-920 of the ready-to-use adhesive mixture. In the parquet adhesive according to the invention, however, no plasticizer is included. SMP-920 consists of 20% by mass of diisononyl phthalate, SMP-930 contains 11% by mass of bis (2-propylheptyl phthalate) and 4% by mass of phenolic alkyl sulfonic acid as plasticizer. Against the background of a harmful phthalate effect and undesirable plasticizing effects, SMP-930 is considered to be superior to SMP-920.
    With the inventive parquet adhesive described in Table 1, the strength of the adhesive adhesion was determined on different substrates and compared with the commercially available silane-modified parquet adhesives (SMP-920 and SMP-930, Stauf adhesive GmbH).
    The substrate selected was a mastic asphalt-coated wood-based panel, a fiber cement panel primed with VDP160 (styrene-acrylate-based dispersion primer, Stauf adhesive GmbH) and an uncoated concrete panel (strength class C 20/25 in accordance with DIN EN 206-1: 2001-07) , The shear strength, which was determined in accordance with DIN EN 14293: 2006-10 (storage type A, 40 ° C), was used as the measuring parameter. The procedure was such that the substrates to be coated were first coated with mastic asphalt (layer thickness 25 mm) or VDP160 (layer thickness 0.2 mm) and then left to dry for 24 hours under normal conditions (23 ° C., 50% relative atmospheric humidity) , The concrete slab was also stored at the same time for 24 hours under normal conditions. Subsequently, the substrates were evenly coated with a 0.85 mm thick adhesive layer and the beech bars pressed into the adhesive layer. After storage for seven days in a climatic chamber at 20 ° C and 50% relative humidity, the temperature was increased to 50 * € and air conditioned for a further 7 days at 50% relative humidity. Subsequently, the specimens were conditioned for 24 hours to normal conditions. The shear test was carried out in accordance with DIN EN 14293: 2006-10, resulting in the measured values shown in Table 2.
    The results show that the parquet adhesive according to the invention on the problem from a technical point of view unproblematic concrete base in comparison to SMP-930 already has a 24% higher shear strength and compared to SMP-920 even a 36% higher shear strength. On the dissolvable by plasticizers and liquid extenders and therefore rather problematic substrates, this difference shifts further in favor of the adhesive of the invention. For example, it has a 1.818% increase in shear strength on mastic asphalt compared to SMP-930, which even increases to 2.538% compared to SMP-920. Similar results are achieved with the dispersion primer VDP160. The parquet adhesive according to the invention has on this substrate in comparison to SMP-930 increased by 765% and compared to SMP-920 increased by 1084% shear strength.
    From these data it can be seen that the parquet adhesive according to the invention, in contrast to the commercially available silane-modified parquet adhesives has a comparatively high shear strength of greater than or equal to 2.0 N / mm2 and this guaranteed on problematic substrates. The adhesion properties of the parquet adhesive according to the invention are therefore considered to be significantly better than the commercially available silane-modified parquet adhesives.
    In the following experiment, the dissolving and softening effect of the parquet adhesive according to the invention was tested on parquet water paints and with the commercially available silane-modified parquet adhesives (SMP-920 and SMP-930, Stauf adhesive GmbH) with plasticizer levels of 20 (SMP-920) and 15 mass percent ( SMP-930). The parquet water paint used was commercially available one-component systems based on polyurethane / acrylate dispersion (Aqua-Seal® EcoGold W3, Berger-Seidle Siegeltechnik GmbH and LOBADUR® WS Global, Loba GmbH & Co.KG) with comparatively low resistance to plasticizers and liquid Extenders selected.
    For the investigation, the corresponding adhesive was applied over the entire surface of the back of a multi-layered parquet with the dimensions length = 600 mm, width = 75 mm, thickness = 11 mm. The back of the multi-layer parquet elements had every 5 cm rectangular incisions of a width of 2 mm and a depth of 6 mm, the incisions were oriented parallel to the narrow edge of the parquet elements. Overall, a parquet bar had 11 cuts.
    For adhesive application, these were filled with adhesive and the entire back of the Parkettelements pulled off with a smooth spatula so that only adhesive remained in the incisions. After a curing time of 7 days at 20 ^ 0 and 50% relative humidity, the back of the parquet elements was sanded, so that the wood surface was raw again. In the area of the incisions, the adhesive remained.
    Now, the surface was painted over the entire surface with water-based paint. Three coats of lacquer with an application rate of 110 g / m2 were applied, with an intermediate cut after the first and second application. After shipment to a climatic chamber and drying for 3 days at 20 ° C and 50% relative humidity, the specimens were further air-conditioned at 50 ° C and 50% relative humidity. After a storage period of 3, 20 and 45 days, the specimens were each tempered down to 20 ° C. within 3 hours and taken out of the climatic chamber.
    Now, as a test substance, the joint putty powder Pafuki of Berger-Seidle Siegeltechnik GmbH, Grünstadt was sprinkled on the surface of the parquet elements and blown off again after an exposure time of 10 seconds. The discoloration of the lacquer surface was then assessed visually by a five-stage semiquantitative classification system, where 1 = no discoloration, 2 = minimal discoloration, 3 = slight discoloration, 4 = pronounced discoloration and 5 = pronounced discoloration. In the area of the incisions in which the lacquers were applied to the adhesives and their edges, different degrees of permanent discoloration could be seen. These are due to the dissolution and softening of the water-based paints as a result of the action of migratory-dissolving adhesive components (plasticizers and / or liquid extenders).
    To be able to judge whether the discoloration remaining after blowing off the test substance (dry cleaning) can be washed off, the sample body surfaces were washed off after the first discoloration evaluation with surfactant-containing water (wet cleaning), dried and then subjected to a new assessment.
    The results of these experiments are shown in Table 3. They show that the adhesive according to the invention, in contrast to commercially available SMP adhesives, at no time exerts a solubilizing or softening effect on the polyurethane / acrylate water-based paints investigated. Since the one-component waterborne paints studied are among the less plasticizer and liquid extender-resistant waterborne paints, other, more resistant, e.g. Two-component water-based paints, not to be expected with a dissolving or softening effect by the parquet adhesive according to the invention.
    The open time of the adhesive according to the invention (composition according to Table 1) was determined in accordance with DIN EN 14293: 2006-10. It was 75 minutes, i. Parquet coverings can still be pressed into the adhesive layer and glued to the substrate within this period of time after adhesive application. The removal of already laid coverings and their realignment is within this period readily feasible.
    With the parquet adhesive according to the invention described in Table 1, the viscosity was determined according to DIN EN ISO 2555: 2000-01. A viscosity of 91,200 ± 6,300 mPa · s (n = 5, 20 revolutions per minute) was measured. The viscosity is thus in the range of 60,000 to 120,000 mPa-s, which guarantees easy spreadability and dimensionally stable adhesive beads up to a height of 10 mm. In combination with the one-component and the open time, this results in easy handling and processing of the parquet adhesive according to the invention.
    Raw material Chemistry Function Manufacturer Percentage [%] SAX260 dimethoxymethylsilane-terminated poly-propylene oxide oligomer, MW: approx. 10,000 g / mol binder, base polymer Kaneka 28.0 SAT 010 dimethoxymethylsilane-terminated poly-propylene oxide oligomer, MW: approx / mol binder, reactive diluent Kaneka 10,0 Omyabond 302 Chalk powder surface-hydrophobicized with stearic acid, average particle diameter: 0.4 μm Mineral component Omya 4.0 Omyabond 520 FL marble powder, surface-hydrophobic with stearic acid, average particle diameter: 2.0 Mineral component Omya 55.0 Metatin K 740 Dibutyltin diacetylacetonate Catalyst Acima 0.29 Geniosil XL 10 Vinyltrimethoxysilane Desiccant Wacker Chemie 0.80 Geniosil GF 96 3-aminopropyltrimethoxysilane Adhesion promoter Wacker Chemie 1.0 Tinuvin 765 Mixture of bis (1,2,2, 6,6-pentamethyl-4-piperidyl) sebacate and methyl 1,2,2,6,6-pentamethyl-4-piperidyl sebacate UV light absorber Ciba 0.06 Irganox 1135 3,5-bis (1,1- di methylethyl) -4-hydroxybenzylpropanoic acid C7-C9 isoalkylester Antioxidati onsmittel Ciba 0.15 Disparlon 6100 polyamide wax rheological additive Kusumoto 0.70 Table 1: Exemplary, particularly preferred composition of the parquet adhesive according to the invention (parts in mass percent).
    Adhesive Tensile shear strength ± SD on mastic asphalt Inventive adhesive (composition according to part 1) 2,11 ± 0,22 N / mm2 (n = 7) SMP-930 0,11 ± 0,07 N / mm2 (n = 6) SMP- 920 0.08 ± 0.06 N / mm2 (n = 6)
    Adhesive Tensile shear strength ± SD on primer VDP160 Adhesive according to the invention (combined 2.25 ± 0.26 N / mm 2 (n = 7) 11/17 AT13 210U1 2013-08-15 Austrian
    Patent Office
    Placement like. Table 1) SMP-930 0.26 ± 0.08 N / mm 2 (n = 6) SMP-920 0.19 ± 0.09 N / mm 2 (n = 6)
    Adhesive Tensile shear strength ± SD on concrete slab Inventive adhesive (composition shown in Table 1) 2.30 ± 0.20 N / mm " (n = 7) SMP-930 1.85 ± 0.17 N / mm 2 (n = 7) SMP-920 1.69 ± 0.21 N / mm 2 (n = 6) Table 2: Results of tensile shear test according to DIN EN 14293: 2006-10 (type of storage A) on parquet adhesive according to the invention, SMP-930 and SMP-920 on different substrates. Measured values ± standard deviation (SD) and number of the respective measurements (s). 12/17 Austrian Patent Office AT 13 210 Ul 2013-08-15
    After 45 days wet cleaning kn in - dry cleaning w IO - io - after 20 days wet cleaning in IO - u > T ~ Dry Cleaning W tn T " IO IO T "wet cleaning in tn - in - after 3 Ί α E1 3 ac 2 c .3 o 2 1- in IO - in in - water-based paint Aqua-Seal® EcoGold W3 SMP-930 ISMP-920 Adhesive Waterborne LOBA- DUR® WS Global 3 a > t CL 2 (0 ISMP-920! adhesive according to the invention
    and 45 days exposure time. Assessment of discolouration according to a 5-stage assessment system (5 = worst, 1 = best result) of 11 individual samples each after blasting (dry cleaning) and wiping (wet cleaning) of the sample surface. 13/17 Austrian Patent Office AT13 210U1 2013-08-15
    Raw material Chemistry Function Manufacturer Proportion ra S 203 H Dimethoxymethylsilane-terminated polypropylene oxide oligomer; MW: about 12,000 q / mol binder, base polymer Kaneka 11 S 303 H dimethoxymethylsilane-terminated polypropylene oxide oligomer; MW: approx. 18,000 g / mol binder, base polymer Kaneka 6 Silquest A-171 vinyltrimethoxysilane desiccant Momentive 0,7 Silquest A-1637 4-amino-3,3-dimethylbutyltrimethoxysilane Primer Momentive 0.7 TIB KAT 223 dioctyltin bis (2, 4-pentanedionate) Catalyst TIB Chemicals 0.34 Irganox 1726 4,6-bis (dodecylthiomethyl) -o-cresol Antioxidant Ciba 0.1 DINP Diisononyl phthalate Plasticizer BASF 20 Crayvallac SLX Polyamide wax Rheological additive Cray Valley 0.4 Omya BLP 3 Limestone powder, with stearic acid Surface hydrophobic, mean particle diameter: 5.7 μm Mineral component Omya 19.5 Calcilite 6 HS Limestone powder, surface hydrophobed with stearic acid, average particle diameter: 7 pm Mineral component alpha calcite 8.66 MS 70 F Limestone powder, mean particle diameter: 4.5 pm Mineral Component Schön und Hippelein 15 Calcifin 20 H Limestone powder, surface-hydrophobized with stearic acid, average particle diameter r: 4.4 pm Mineral component alpha-calcite 16 HDKH 18 Highly dispersed silicic acid, surface-silanized Mineral component Wacker 1.6 [00102] Table 4: Composition of the commercially available parquet adhesive SMP-920 (Stauf Klebstoffwerk GmbH; Shares in mass percent).
    Commodity Chemical Function Manufacturer Percent [%] S203H Dimethoxymethylsilane-terminated polypropylene oxide oligomer; MW: about 12,000 g / mol of binder, base polymer Kaneka 3 S 303 H dimethoxymethylsilane-terminated polypropylene oxide oligomer; MW: approx. 18,000 g / mol binder, base polymer Kaneka 16 Dynasylan VTMO vinyltrimethoxysilane dry agent Degussa 0.8 KBM 603 N-2- (aminoethyl) -3-aminopropyltrimethoxysilane adhesion promoter Shin-Etsu 0.8 Neostann U 220 H dibutyltin diacetylacetonate catalyst Nitto Kasei 0.32 Irganox 1726 4,6-bis (dodecylthiomethyl) -o-cresol Antioxidant Ciba 0,1 14/17 AT13 210U1 2013-08-15 Austrian
    Patent Office
    Palatinol 10-P Bis (2-propylheptylphthalate) Plasticizer BASF 11 Mesamoll Phenolalkylsulfonic acid ester Plasticizer Bayer 4 Thixatrol MAX Polyamide wax Rheological additive elementis 0.5 Omyacarb 10 BG Limestone powder, average particle diameter: 7 pm Mineral component Omya 19.5 Calcifin 20 H Limestone powder, with stearic acid surface hydrophobic, average particle diameter: 4.4 pm Mineral component Alpha-Calcite 41.58 Socal 312 Precipitated calcium carbonate, coated, average particle diameter: 0.07 μm Mineral component Solvay 2.4 Table 5: Composition of the commercial parquet adhesive SMP-930 (Stauf Klebstoffwerk GmbH, proportions in mass percent) 15/17
    权利要求:
    Claims (2)
    [1]
    Austrian Patent Office AT 13 210 Ul 2013-08-15 Claims 1. Water, solvent and plasticizer-free one-component parquet adhesive based on silane-terminated polyalkylene oxide oligomers, characterized in that it contains no non-reactive liquid extenders and contains or excludes the following substances they consist of: a) from 12 to 36% by weight of a moisture-reactive silane-terminated polyalkylene oxide binder having an average molecular weight of 6,000 to 20,000 g / mol, the silane functions being linked to the oligomeric backbone via alkyl groups, b) 2 to 18 mass% of a moisture-reactive silane-terminated one Polyalkylene oxide binder having an average molecular weight of 300 to 3000 g / mol, wherein the silane functions via alkyl groups are connected to the oligomeric backbone, c) 30 to 60 mass percent of a surface-hydrophobicized marble powder having an average particle diameter of 0.8 gm to 4.0 gm , d) 2 to 10% by mass of a surface-hydrophobized chalk powder having an average particle diameter of 0.2 to 0.7 μm, e) 0.1 to 1.0% by mass of a curing catalyst, f) 0.2 to 3% by mass of a moisture-reactive silane-modified desiccant, and g) 0.2 to 3 percent by mass of a moisture-reactive silane-modified adhesion promoter, wherein the percentages refer to the mass of the ready-to-use parquet adhesive and the sum of the components a) to g) is 46.5% to 100%.
    [2]
    2. water, solvent and plasticizer-free one-component parquet adhesive according to claim 1, characterized in that it contains no non-reactive liquid extenders and contains or consists of the following substances: a) 23 to 33 percent by mass of a moisture-reactive silane-terminated polyalkylene oxide binder with an average molecular weight of 7,000 to 13,000 g / mol, wherein the silane functions via alkyl groups are connected to the oligomeric skeleton, b) 7 to 13 mass percent of a moisture-reactive silane-terminated polyalkylene oxide binder having an average molecular weight of 700 to 1300 g / mol, wherein the C) from 48 to 60% by mass of a surface-hydrophobicized marble powder having an average particle diameter of from 1.0 μm to 3.0 μm, d) from 3 to 7% by weight of a surface-hydrophobized chalk powder having an average particle diameter e) from 0.3 to 0.6 pm, e) from 0.15 to 0.29 mass percent of a curing catalyst, f) from 0.5 to 1.5 mass percent of a moisture-reactive silane-modified desiccant, and g) from 0.5 to 1.5 mass percent a moisture-reactive silane-modified adhesion promoter, wherein the percentages refer to the mass of the ready-to-use parquet adhesive and the sum of the components a) to g) is 82.15% to 100%. 16/17
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2606082B1|2015-10-07|Water-, solvent- and phthalate-free, silane-modified, one-component parquet adhesive and use thereof for highly dimensionally stable bonding of parquet, wood floor coverings and wood-based material boards in interior fitment
    EP2496654B1|2014-04-02|Adhesives and sealants comprising ester based on 2-propylheptanol
    EP1724321A1|2006-11-22|Solventless adhesive and sealant
    WO2010063740A1|2010-06-10|Cyclohexane polycarboxylic acid derivatives as plasticizers for adhesives and sealants
    KR101498872B1|2015-03-04|Polymer Based Cement Waterproofing Agent With Improved Waterproof and Wear Resistance, and Preparing Method Thereof
    EP2670799B1|2016-07-13|Curable composition having combined stabilisers
    DE102010002808B4|2019-02-21|Hardenable compositions based on silane-modified polymers and their use as tile adhesives
    EP2582765B1|2014-10-15|2-ethylhexyl methyl terephthalate as plasticisers in adhesives or sealants
    EP2531559A1|2012-12-12|Curable compositions having improved fire properties
    WO2011057896A1|2011-05-19|Adhesive and sealant system
    WO2010057963A1|2010-05-27|Storage-stable two-component silicone adhesives and sealants with extended mixer open time
    EP2606081B1|2017-01-11|Water-, solvent- and plasticizer-free, silane-modified, one-component parquet adhesive and use thereof for bonding parquet, wood floor coverings and wood-based material boards to all - including problem - substrates customary in interior fitment
    WO2012072502A1|2012-06-07|Curable composition
    EP3714015A1|2020-09-30|New systems for priming and adhesion of flooring
    EP3242906B1|2018-11-14|Room temperature curing silicone compound with improved flow properties
    EP2365998B1|2012-08-22|Aqueous dispersion base, coating produced therewith, and methods for producing a vapor barrier or an intermediate layer on a substrate
    WO2020165125A1|2020-08-20|New systems for priming and adhesion of flooring
    DE202013005816U1|2013-08-20|Floor structure comprising a parquet flooring
    同族专利:
    公开号 | 公开日
    CA2808247A1|2012-02-23|
    US8614269B2|2013-12-24|
    DK2606081T3|2017-04-24|
    US20130048193A1|2013-02-28|
    MX2013001644A|2013-05-28|
    EP2606081B1|2017-01-11|
    WO2012022493A3|2012-04-19|
    MX346255B|2017-03-13|
    CH704530B1|2014-11-28|
    EP2606081A2|2013-06-26|
    DE102010034998A1|2012-02-23|
    PL2606081T3|2017-08-31|
    DK2606081T5|2017-05-22|
    CA2808247C|2016-03-15|
    WO2012022493A2|2012-02-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2007093381A1|2006-02-14|2007-08-23|Bostik S.A.|One-component, solvent free contact adhesive|
    EP2011833A1|2006-04-19|2009-01-07|Kaneka Corporation|Curable resin composition|
    DE102007056524A1|2007-11-22|2009-05-28|Henkel Ag & Co. Kgaa|Curable compositions of trimethoxysilanes|
    WO2010063740A1|2008-12-05|2010-06-10|Basf Se|Cyclohexane polycarboxylic acid derivatives as plasticizers for adhesives and sealants|
    DE202004014691U1|2004-09-21|2004-12-16|Stauf Klebstoffwerk Gmbh|Low-emission adhesive composition based on solvents|
    WO2010008154A2|2008-07-15|2010-01-21|Korea Bio-Gen Co., Ltd|Room temperature moisture curable hybrid resin, method of preparing the same and application thereof|
    EP2338938B1|2008-09-29|2013-07-31|Kaneka Corporation|Curable composition and cured product thereof|PL2628580T4|2011-06-21|2017-09-29|Flooring Technologies Ltd.|Composite wood board|
    DE102012201734A1|2012-02-06|2013-08-08|Wacker Chemie Ag|Compositions based on organyloxysilane-terminated polymers|
    US9328272B2|2012-09-10|2016-05-03|Kaneka Corporation|Curable composition|
    法律状态:
    2019-04-15| MM01| Lapse because of not paying annual fees|Effective date: 20180831 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102010034998A|DE102010034998A1|2010-08-20|2010-08-20|Water, solvent and plasticizer-free silane-modified one-component parquet adhesive and its use for bonding parquet, wooden floor coverings and wood-based panels with all the usual interior surfaces, even problematic substrates|
    PCT/EP2011/004196|WO2012022493A2|2010-08-20|2011-08-19|Water-, solvent- and plasticizer-free, silane-modified, one-component parquet adhesive and use thereof for bonding parquet, wood floor coverings and wood-based material boards to all - including problem - substrates customary in interior fitment|
    [返回顶部]