• 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:
    Polymeric compound and process for obtaining same. The invention consists of a polymeric compound with high content of biomass and 100% recycled pvc, so that the mixture of these components, mostly in the compound, is mixed with a thermal stabilizer, binder additives, ethylene wax and uva filter, so that said mixture, after preparation and treatment of each one of the components, is subjected to a centrifugation and a subsequent cooling to finally obtain a polymeric substitute of the wood, usable for structures related to the construction. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2632225A1
    申请号:ES201600183
    申请日:2016-03-10
    公开日:2017-09-11
    发明作者:Ricardo Diaz Martin；Carlos MAYO DEL RIO；Juan CASTRO OTERO；Adib GUARDIOLA MOUHAFEL
    申请人:A Distancia De Madrid Udima S A, University of；Universidad A Distancia De Madrid Udima SA；
    IPC主号:
    专利说明:

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    DESCR1PCIQN
    QBJETQ OF THE INVENTION
    The present invention relates to a polymeric compound, with a high biomass and landfill PVC content, so that by mixing said two components, wherein the PVC is 100% recycled, with a small percentage of stabilizer, additives, ethylene wax, UVA filter, and high percentage of biomass, a wood substitute compound is obtained for use in multiple applications, such as architectural structures, that is structures related to construction, both for exterior and interior environment.
    The object of the invention is to provide a polymeric compound with a high biomass content, which allows to obtain an ecological final product.
    It is also the object of the invention the process from which the said compound is obtained, based on an extrusion process with homogenization of the composition by polymerization.
    BACKGROUND OF THE INVENTION
    Currently, profiles that mimic wood are known, based on polymeric materials of the PVC, polyethylene or polypropylene type with the incorporation of lignite cellulosic fillers such as rice husk or sawdust sawdust pretreated to achieve dehydration.
    So far, products or compounds manufactured with this type of materials are aimed at the construction sector and generally to floors and beams that mimic the wood through compositions that differ from each other in terms of polymers, lignite charges
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    cellulosic and proportions of them being known some patents as is the case of the patent ES2052053 T3 corresponding to a polymeric composition similar to wood whose composition is based on 80-90% by weight of polyethylene terephthalene, 120% by weight of polycarbonate and 0.3-2% by weight of 5 phenyltetrazoles, whose purpose is the manufacture of articles similar to wood by molding whose composition does not appear any lignitic product. Another case is that of the patent with publication number WO2012074350 A1 corresponding to a composite material based on rice husk and binder modified with carbon nanostructures.
    Other patents that can be cited are:
    EP 0883482 Babrildel 2000: "Interfacial blending agent for natural fiber composites"
    This invention relates in general to a process for making a sustainable compound that can be painted comprising a first plastic and an essentially homogeneous mixture of a second plastic and natural fibers, particularly suitable for use as components of doors and windows, as well as applications Coating.
    EP 1086988 A1 March 2001: “Powder blends of chlorinated vinyl resin / cellulosic material, compositions, processes and composites and articles therefrom”
    In this invention there are provided compositions and processes for the preparation of powder mixtures containing a vinyl chloride resin and an extrudable cellulosic material. More specifically, compositions and processes for the preparation of free-flowing powder mixtures containing extrudable PVC and wood powder (WF) for the preparation of foam or unfoamed extrudates are also provided. The processes provided in this document incorporate components that can contain up to a total of 25 percent water by weight. Procedures for preparing extruded foam materials in which a cooling fluid is used to increase the foam expansion ratio are also provided. Finally, they are composite materials that have an extrudable thermoplastic substrate and at least one coating layer disposed thereon containing a PVC / WF composition.
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    WO 2005105916 A1 November 2005: “Method for improving mechanical properties of pvc- wood and other natural fiber composites using pvc stabilizers”
    This invention describes a process for improving the mechanical and chemical properties of a compound of (polyvinyl chloride) and at least one natural fiber comprising the addition to said compound of at least one heat stabilizer selected from the group consisting of : A) alkyl esters sulfide esters; B) alkyl ether alkyl maleates; and C) complex mixtures of calcium / zinc / carboxylates acetylacetonates.
    EP 2346932 A2 July 2011: “Foamed pvc profiles with a high mineral filler content and their uses"
    This invention relates to the production of foamed polyvinyliorior polymer polymer profiles comprising between 40 and 60 parts by weight of natural origin mineral load per 100 parts by weight of polyvinyliorior (PVC), and PVC with a K value from 50 to 58
    EP 2114648 B1 September 2014: “Wood-plastic composites using recycled carpet waste and methods of manufacturing"
    This invention relates to methods for manufacturing extruded composite materials and, more particularly, to wood or natural plastic fiber composite extrusions that employ recycled carpet waste as a component of the composite material.
    Currently, the availability of biomass in the Spanish market reaches huge quotas and apart from its use as a fuel for the thermal conditioning of houses there are others that allow the replacement of the different structures built in natural wood with this type of filling products with similar appearance and technical improvements.
    The conglomerates produced by this compound can be used for a complete construction system being more economical as they are generated materials
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    by plastic waste and from the nature itself, as is the case of biomass, without greatly resisting its mechanical properties with respect to the traditional materials used in construction.
    DESCRIPTION OF THE INVENTION
    The polymeric compound object of the invention allows obtaining a material with the characteristics just mentioned, whose main elements are biomass, which is produced in all regions of! world and the recycled PVC that, being a highly polluting material and with a long period of life, allows its reuse there where it accumulates avoiding its abandonment in landfills without degrading naturally.
    One of its main characteristics is that it is a compound that produces a type of flame retardant material, self-extinguishing when removing the flame, or which makes it suitable for application in inhabited places and due to its constituents it is not a transmitter of heat and It repels water (hydrophobic) which allows it to act as insulating material for certain applications.
    The different materials that can be produced by the compound object of the invention are profiles of all kinds that can give rise to different objects and constructive structures such as all types of furniture, walkways, floors, walls, roofs, beams etc. made by a compound formed by ecological components and respectful of the environment by ceasing to use those conventional materials that generate high amounts of carbon dioxide to obtain them.
    In summary, it is a material that respects the environment and allows its total reuse through a pretreatment. Queries made on other patents of this type incorporate similar compounds but not in the proportions of this and with the use of 100% recycled basic materials as is the case of landfill PVC and biomass pellets.
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    The process for obtaining the compound with high biomass content, object of the invention is carried out based on an extrusion process that allows to obtain a product similar to wood, using an installation that allows the composition of the product to be homogenized by polymerization with the incorporation into the matrix of the lignite load contributed by biomass.
    More specifically, the process of the invention comprises the following operational phases:
    Preparation of the biomass in the form of pellets, with a subsequent drying phase to achieve its dehydration and moisture reduction of the order of 96%.
    Treatment by washing, drying and subsequent trituration of the landfill PVC until a grain size close to 3 mm is achieved.
    Micronized PVC treated in the previous phase to get fine dust.
    Mixing of biomass and PVC treated and prepared in the previous phases.
    Adding to said mixture a thermal stabilizer for homogenization of the mixture and additives capable of improving it favoring the ligation of all components, ethylene wax responsible for the external lubrication of the compound to be obtained to allow it to slide inside the extruder and favor its exit from it, finally adding a component "UVA filter" to avoid the influence of solar radiation on the properties corresponding to the decoration and deformation of the material produced.
    As for the thermal stabilizer referred to above, which is added to the mixture and that participates in the final compound, it is a product, preferably a complex of Ca-Zn, fungicidal products and lubricants, so that this stabilizer is responsible for homogenizing the main mixture formed by biomass and PVC.
    The mixture of all the referred components is centrifuged in a blade mixer to achieve a homogeneous mixture, performing that centrifugation at a temperature
    fixed at 110 ° C, so that after the centrifugation the mixing operation ends and the final product is transferred to a cooler to lower its temperature to 40 ° C.
    The components that participate in the compound correspond to the following:
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    • Biomass, in a percentage between 67% and 67.5%
    • Recycled PVC in a percentage between 28.5% and 29.1%
    • Thermal stabilizer in a percentage between 2.3% and 2.5%
    • Additives in a percentage between 0.95% and 0.98%
    10 • Ethylene wax in a percentage between 0.19% and 0.194%
    • UVA filter in a percentage between 0.23% and 0.25%
    In an example of preferred realization, the exact percentages used were:
    15 • 67.34% biomass.
    • 28.86% recycled PVC.
    • 2,405% thermal stabilizer.
    • 0.96% additives.
    • 0.192% ethylene wax.
    20 • 0.24% UVA filter.
    权利要求:
    Claims (1)
    [1]
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    1a - Polymeric compound that, corresponding to a wood substitute material for use in structures related to construction, is characterized in that it comprises a mixture of recycled PVC and biomass in high concentrations, to which stabilizers, additives are added in smaller quantities favoring of the ligation of the components, ethylene wax and UVA filter as components to avoid the influence of solar radiation.
    2a.- Polymeric compound, according to claim 1, characterized in that the following elements participate in% in the composition thereof:
    • Biomass, in a percentage between 67% and 67.5%.
    • Recycled PVC in a percentage between 28.5% and 29.1%.
    • Thermal stabilizer in a percentage between 2.3% and 2.5%.
    • Additives in a percentage between 0.95% and 0.98%.
    • Ethylene wax in a percentage between 0.19% and 0.194%.
    • UVA filter in a percentage between 0.23% and 0.25%.
    3a.- Procedure to obtain a polymeric compound, a high volume of biomass participating in the compound as a wood derivative, as well as recycled PVC from landfill, and to a lesser extent thermal stabilizer, additives, ethylene wax and UVA filter, performing the process by extrusion with means that allow the composition to be homogenized by polymerization, characterized in that it comprises the following operational phases:
    • Preparation of biomass in the form of pellets.
    • Drying the biomass until dehydration is achieved with a removal of
    humidity of the order of 96%.
    • Treatment by washing, drying and subsequent crushing of recycled PVC until
    get a grain size close to 3mm.
    • Micronized said PVC to get fine dust.
    • Mixing of dry biomass and fine PVC powder.
    • Addition to the mixture of a thermal stabilizer, binding additives, ethylene wax and filter
    GRAPE
    • Centrifugation of the mixture at a temperature of the order of 110 ° C.
    • Cooling the product to a temperature of the order of 40 ° C and obtain the
    polymeric wood substitute compound.
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    同族专利:
    公开号 | 公开日
    ES2632225B1|2018-06-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN101392099A|2008-10-23|2009-03-25|福建师范大学|Method for preparing Wood-plastic composite material by modified wood powder and waste and old plastics|
    WO2015000363A1|2013-07-05|2015-01-08|中盈长江国际新能源投资有限公司|Thermoplastic wood-plastic composite material and method for manufacture thereof|
    CN103772894A|2014-02-28|2014-05-07|李胜刚|Plastic-wood composite material and manufacturing method thereof|
    CN104004293A|2014-04-30|2014-08-27|山东霞光实业有限公司|Formula and preparation method of outdoor PVC wood plastic grille|WO2020067859A1|2018-09-25|2020-04-02|Corporativo Boro S.A. De C.V.|Biodegradable paste for multiple uses and method for preparing same|
    法律状态:
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