• 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 invention relates to a method for coating a base element (1) for a household appliance component. The method comprises at least the steps of providing a base element (1) with at least one surface with free hydroxyl groups, and applying at least one compound of the general formula (I) {IMAGE-01} on said surface to generate a hydrophobic coating (2), where R1 and R2 are selected independently from each other between H and F, n = 0 to 40 , and R3 are independently selected from each other between Cl and O (CmH2m + 1) with m = 1 a 10. Likewise, the invention refers to a component of domestic appliance comprising a base element (1) coated and a household appliance comprising at least one component of household appliance (1).
    公开号:ES2682687A1
    申请号:ES201730384
    申请日:2017-03-21
    公开日:2018-09-21
    发明作者:Maria Carmen Artal Lahoz；Pilar CEA MINGUEZA；Javier CORTES CAMEROS；Marta FENERO BISQUER；Ignacio GASCÓN SABATE；Elena Martinez Solanas；Santiago MARTÍN SOLANS；Javier Sanz Naval
    申请人:BSH Hausgeraete GmbH；Universidad de Zaragoza；BSH Electrodomesticos Espana SA；
    IPC主号:
    专利说明:

    METHOD FOR COVERING A BASE ELEMENT FOR A
    COMPONENT OF DOMESTIC APPLIANCE, AND COMPONENT OF DOMESTIC APPLIANCE
    DESCRIPTION
    S The invention refers to a method for coating a base element for household appliance component. Likewise, the invention refers to a household appliance component comprising a coated base element and a household appliance comprising said household appliance component.a one a
    10 15 20 Hydrophobic surfaces are an issue that is becoming increasingly important in household appliances and are necessary in many applications. The properties of a hydrophobic surface are particularly useful if water or other hydrophilic substances are to be kept away from certain superstitial areas. Examples include surfaces that repel water from cooking countertops, easy-to-clean surfaces, anti-fingerprint properties, and avoidance of the presence of water in conductive or capacitive areas. However, glass and glass ceramic materials are intrinsically hydrophilic and have contact angles with water of approximately 20-60 °. These small contact angles can cause condensation problems for tempered glass, oven doors, spilled liquids during cooking on ceramic hobs or water and moisture present on the glass shelves of refrigerators, and the like Therefore, the application of hydrophobic or even superhydrophobic coatings to the glass or glass ceramic surfaces of said base elements is known.
    25 However, currently known coatings show quite low degrees of hydrophobicity or require complex and expensive coating materials and methods to achieve sufficiently large contact angles. Other problems with hydrophobic coatings known today include low adhesion to the base element, unsatisfactory resistance to abrasion, and small contact angles with water in comparison.
    30 The present invention solves the technical problem of providing a method for coating a base element for a household appliance component with an economical hydrophobic coating. Another technical problem that solves the invention consists in
    provide a household appliance component comprising a base element with an economical hydrophobic coating. Likewise, the present invention also solves the technical problem of providing a household appliance comprising at least one household appliance component with an economical hydrophobic coating.
    These problems are solved by a method for coating a base element for a household appliance component, a household appliance component, and a household appliance according to the independent claims. Advantageous developments of the invention are specified in the respective dependent claims, wherein advantageous developments of a specific aspect of the invention are to be considered developments.
    10 advantageous of all other aspects of the invention, and vice versa.
    The first aspect of the invention refers to a method for coating a base element for a household appliance component. The method comprises at least the steps of providing a base element with at least one surface with free hydroxyl groups, and applying at least one compound of the general formula (1)
    15 (1)
    R1 R2
    on said surface to generate a hydrophobic coating, where and are independently selected from each other from H and F, n = ° to 40, that is, 0, 1, 2, 3,4,5,6,7, 8 , 9,10, 11,12,13,14,15, 16,17, 18,19,20,21, 22, 23, 24, 25, 26, 27, 28, 29, 30,31,32,33 , 34,35,36,37,38, 39, or 40, and R3 are independently selected from each other from CI and Q (CmH2m + 1) with m = 1 to 10, that is, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10. The use of one or more compounds of the general formula (1) makes it possible to quickly and easily coat one or more surfaces with free hydroxyl groups to obtain coatings hydrophobic or even superhydrophobic that adhere to the surface and are very resistant against abrasion. The surface may be, for example, a glass or glass ceramic surface 25. Also, the method can be carried out very easily, since a photochemical nile thermal polymerization is not necessary. It can be envisaged that the resulting layer (s) will be composed of said compound (s) with the general formula (1). Alternatively, the resulting layer (s) may comprise or be composed of reaction products of said compound (s) and / or contain one or more of others.
    components. This makes possible a quick and simple production of coatings with a higher degree of hydrophobicity than conventional coatings. Likewise, expensive high-performance materials are not necessary to achieve the properties of a hydrophobic or even superhydrophobic superstition with water contact angles of at least 105 ° or more. The coating step can be performed once or multiple times to adjust the amount of respective layers and their properties. The resulting layer (s) generally repels water-containing liquids and can advantageously be used, for example, in touch control areas of cooking countertops (by induction), for avoid condensation on the glass doors of ovens, or to ensure a simpler cleaning of any glass cooking surface.
    In an advantageous development of the invention, it is envisioned that the base element be cleaned and / or pretreated at least in parts before the compound is deposited. This further improves the adhesion of the applied compound (s) of the general formula (1).
    In another advantageous development of the invention, it is envisioned that the base element be cleaned by the application of a cleaning agent and / or by ultrasonic cleaning. By way of example, the base element can be cleaned with one or more of the water, detergents, hexane, or with an alcohol such as ethanol or isopropanol. Alternatively or additionally, the base material can be submerged in water and treated with ultrasound for up to several minutes, for example, 10 minutes. This can be repeated several times with optional intermediate rinse steps.
    Alternatively or additionally, the base material can be dried by heating and / or by the application of compressed air. Also alternatively or additionally, an ozone treatment eliminates the residues of the subsurface and improves the adhesion of the compound on the glass and glass ceramic substrates with free OH groups. Likewise, a laser treatment can be used to pretreat the base element superture in order to improve the adhesion of the back coating.
    In another advantageous development of the invention, it is envisioned that the base element be coated with at least one layer of said compound by one or more of the spray coating, immersion coating, flow coating, roller coating, and the brush coating, using a coating agent comprising said compound. This makes possible the uniform application of at least one compound even on base elements with complex geometries. In general, the technical advantage of brush coating is the complete wetting of the supertice and its supertitial irregularities. Roller coating offers a very fast means of applying said compound. This is also applicable for spray coating, which is also an extremely fast method to apply the compound (s) on base elements with large surface areas and / or complex geometries.
    In another advantageous development of the invention, it is envisioned that the base element is coated by immersion of at least a part of the base element once or multiple times during a predetermined incubation time in the coating agent. This so-called immersion coating makes it possible to quickly and easily cover large base elements and base elements with complex geometries. Naturally, this step can be repeated once or multiple times with the same or with different coating agents, making it possible for a series of thin layers to accumulate to form a relatively thick final layer system. Immersion coating also offers one of the most economical means and can be done manually or automatically. Other advantages are high production capacities, low losses, and the ability to cover interior and exterior surfaces at the same time.
    In another advantageous development of the invention, the concentration of the compound in the coating agent is expected to be between 0.01 mM (1.0) (10.5 mol / I) and 1 M (1 mol / l), in particular , between 0.1 mM and 200 mM and, preferably, between 0.5 mM and 10 mM.
    In another advantageous development of the invention, it is envisioned that the coating agent contains a solvent, in particular, one or more of the water, hexane, isopropanol and / or ethanol and / or that the predetermined incubation time is between 1 second and 72 hours, in particular, between 5 minutes and 24 hours. The incubation time may be, for example, 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, 11 min, 12 min, 13 min, 14 min, 15 min, 16 min, 17 min, 18 min, 19 min, 20 min, or more. This makes possible the precise adjustment of the coating step and the properties of the resulting layer. Longer incubation times usually cause greater contact angles with water until a saturation point is reached.
    In another advantageous development of the invention, it is envisioned that the compound has the formula CoF2o-t 1
    I
    (H, C),
    I
    el - Si-el
    I
    the one with 0 = 1 to 38, that is, 1, 2,3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,20 , 21, 22,23, 24,25, 26,27, 28,29, 30, 31, 32, 33, 34, 35, 36, 37, 6 38, and / or the formula
    (CpH2p-t 1)
    I
    el - Si-elI
    5 el with p = 1 to 40, that is, 1, 2, 3,4,5,6,7,8,9, 10, 11,12,13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,
    39, or 40, and / or the formula
    (CqH2q -t1)
    I H3CO-Si-OCH3
    I OCH3 with q = 1 to 40, that is, 1,2,3,4,5,6,7,8,9,10, 11,12,13,14, 15,
    10 16.17, 18.19.20, 21.22.23.24.25, 26, 27.28.29, 30.31, 32, 33, 34, 35, 36.37, 38, 39.6
    40
    The compound may be, for example, trichloro (1H, 1H, 2H, 2H-perfluorooctyl) silane with the chemical formula
    F.
    F
    or trichloro (3,3,4,4,5,5,6,6, 7, 7, 8,8,9,9, 1 O, 1 O, 1 O-heptadecafluorodecyl) silane with the chemical formula
    he
    F
    the --........ i
    F
    he/
    F
    s
    These compounds show excellent hydrophobic properties thanks to their energy
    Extremely low surface and the quick and easy reaction of the silane group with groups
    hydroxyl of the base element superstructure, for example, with glass or glass superticies
    hob containing silicon dioxide. Also, these compounds can
    10 self-couple on the surface and form a continuous monolayer. In addition, the compound
    it can be a trichlorosilane (CpH2P + 1-SiCh) or a trimethoxysilane (CQH2Q + 1-Si (OCH3h).
    In another advantageous development of the invention, it is envisioned that the base element be treated
    subsequently after the coating step. This makes water removal possible,
    solvents, or unreacted compounds and / or curing unreacted compounds in
    fifteen the layers It may be provided, for example, that the subsequent treatment comprises the
    heat treatment of the coated base element at a predetermined temperature during
    a predetermined time and / or cleaning of the coated base element. Base material
    it can, for example, be heated for up to 10 minutes at temperatures between 1000 C
    and 1200 C (1100 C) in order to evaporate the water and promote the condensation of
    twenty unreacted silanol groups. The subsequent treatment may also comprise the
    cleaning of the coated base element, for example, with acetone, to remove
    leftover compounds or other impurities.
    In another advantageous development of the invention, it is envisioned that the base element provided
    comprises a marking, in particular, a marking generated by ultraviolet radiation
    25 and / or by laser, and that said compound is applied at least on a part of said
    dialing The compounds according to the general formula (1) advantageously maintain the
    visibility of superscript markings even when water is poured over the
    surface. Thus, the compounds of the general formula (1) can be used to protect the markings, in particular, the markings generated by ultraviolet and / or laser radiation, against mechanical and chemical influences without damaging the visibility of said ( s) dialing (s).
    The second aspect of the invention refers to a household appliance component comprising a base element, where at least one superstructure of the base element is at least partially covered with at least one layer, which has been produced by applying the least a compound of the general formula (1)
    10 (1)
    R1 R2
    on said surface to generate a hydrophobic coating, where and are independently selected from each other from H and F, n = O to 40, and R3 are independently selected from each other from between and O (CmH2m..1) with m = 1 to 10. Therefore, the household appliance component according to the invention comprises one or more hydrophobic or even superhydrophobic surfaces through the coating of at least one surface with free hydroxyl groups using at least one compound of the formula general (1). The surface can be, for example, a glass or glass ceramic sub-surface. Alternatively, it can be provided that the surface is composed of silicon oxide. It can be envisaged that the resulting layer (s) will be composed of said compound (s) with the general formula (1). Alternatively, the resulting layer (s) may comprise or be composed of reaction products of said compound (s) and / or contain one or more other components. This makes possible a quick and simple production of coatings with a higher degree of hydrophobicity than conventional coatings. The coating may comprise one or more layers to
    25 adjust the respective properties of the coating. Also, high-performance expensive materials are not necessary to achieve the properties of a hydrophobic or even superhydrophobic surface with angles of contact with water of at least 105 ° or more. Other features and their advantages can be drawn from the description of the first aspect of the invention.
    In an advantageous embodiment of the invention, it is envisioned that the coated surface of the base element is superhydrophobic. According to the present invention, the term "hydrophobic" refers to coatings with angles of contact with water between 90 ° and 120 °, while the term "superhydrophobic" refers to coatings with angles of contact with water of more than 120 ° and, preferably, 160 ° or more, for example, 120 °,
    121 "122 ', 123', 124 ', 125', 126 ', 127', 128 ', 129', 130 ', 131" 132', 133 ', 134', 135 ', 136', 137 ', 138 ', 139', 140 ', 141 "142', 143 ', 144', 145 ', 146', 147 ', 148', 149 ', 150', 151" 152 ', 153', 154 ', 155' , 156 ', 157', 158 ', 159', 160 ', 161 "162', 163 ', 164', 165 ', 166', 167 ', 168', 169 ', 170' or more. This ensures that be
    Extremely difficult to wet these surfaces.
    In another advantageous embodiment of the invention, it is envisioned that the household appliance component is configured as a cooking field plate, as a door, or as a shelf for a domestic appliance. Since the layer (s) of the resulting coating (s) generally repels water-containing liquids, the coating can be advantageously configured to be used, for example, in tactile countertop control areas of cooking (by induction), to prevent condensation on the glass doors of ovens, or to ensure a simpler cleaning of any glass cooking surface.
    The third aspect of the invention refers to a household appliance comprising at least one household appliance component with at least one base element, which has been produced by a method according to the first aspect of the invention and / or at least one component. of household appliance according to the second aspect of the invention. The resulting features and their advantages can be drawn from the description of the first and second aspects of the invention. It is envisaged that the domestic appliance may be configured as a dishwasher, as a dryer, as a washing machine, as a microwave oven, as a steam oven, as a refrigerator, as a freezer, as a hob, as a kitchen, as a cooking oven, or as a grill.
    Other features of the invention are drawn from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description, as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures are usable not only in the combination indicated in each case, but also in other combinations, without abandoning the scope of the invention. Therefore, it should be understood that those sources of embodiment of the invention that are not explicitly shown in the figures or explained, but which can be extracted through combinations of features separate from the shapes are also understood and disclosed by the invention. of realization exposed, and that can be generated from these. Therefore, those embodiments and combinations of features that do not have all the features of an independent claim originally formulated will also be considered disclosed. Likewise, those embodiments and combinations of features that transcend or differ from the combinations of features set forth in references to the claims shall be deemed disclosed by means of the embodiments set forth above. The figures show in:
    Fig. 1 a schematic sectional view of a base element for a household appliance component on which a superhydrophobic monolayer is deposited;
    Fig. 2 a schematic sectional view of the base element on which a superhydrophobic multilayer is deposited;
    Fig. 3 a graph showing the relationship between immersion time and the angle of contact with water.
    Figure 1 shows a schematic sectional view of a base element 1 made of glass for a household appliance component. For the preparation of a superhydrophobic surface, the following steps are carried out. First, the base element 1 is cleaned with ethanol, isopropanol, or hexane. After rinsing the base element 1, it is immersed once again in clean water and ultrasound is applied for 10 minutes. The next cleaning step may include immersion of the base element 1 in ethanol and the application of ultrasound for another 10 minutes. Finally, the base element 1 can be dried with compressed air. Optionally, the base element 1 can be treated with ozone to remove any organic waste and to expose the OH groups of the glass material. Additionally or alternatively, the base element 1 can be treated with laser to make its surface rough.
    Next, a coating 2 comprising one or more layers is deposited on the base element 1 by application of a coating agent. The coating agent is composed of or comprises one or more compounds with the general formula (1)
    CR '
    I '
    n (R12C)
    I
    R '-Yes - R'
    I R '(1)
    where R 'and R2 are independently selected from each other from H and F, n = 0 to 40, for example, 0,1,2,3,4,5,6,7,8,9, 10, 11 , 12,13,14,15, 16,17,18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 , 37, 38, 39, Ó 40, and R 'are independently selected from each other from and O (CmH2m +,) with m = 1 to 10, for example, 1, 2, 3, 4, 5, 6 , 7, 8, 9, OR 10. The compound can be, for example, a trichlorosilane with a chain of perfluorinated alkyls (perfluoroalkylsilanes, FAS-n), where n varies between 1 and 40.
    FAS-17, for example, has the formula
    The three hydrolysable chlorine groups of FAS-n are hydrolyzed to form silanol, which can react with both the free surface hydroxyl groups and adjacent silanol molecules, to form a network structure with strong siloxane bonds. These 15 condensation processes result in the formation of an auto-coupled FAS-n film. The FAS-n is auto-coupled as shown in Figures 1 and 2, so that Q-Si-O bonds are created on the surface of the base element 1, while the fluorinated alkyl groups extend away from the base element 1 and form a low energy surface. This improves the hydrophobicity of the base element 1 and repels water.
    20 spills, etc.
    Depending on the concentration of the compound in the coating agent and the immersion time, a monolayer (figure 1) or a multilayer (figure 2) is formed. Figure 1
    shows a monolayer coating produced by immersion times of 5-20 minutes (FAS-10), while Figure 2 shows a multilayer coating produced by immersion times of 1, 24 or 48 hours (FAS-10). In addition, Figure 3 illustrates a graph showing the relationship between immersion time t and the contact angle with the resulting water A (0).
    In another embodiment of the invention, the method for coating the base element 1 may comprise the following steps:
    one. Optional cleaning of the base element 1 with a solvent, for example, ethanol, isopropanol, or hexane. Rinse with water to remove excess solvent.
    2. Preparation of a solution of a compound with the general formula (1), for example, FAS-n, with one of the following solvents: water, hexane, isopropanol, ethanol, or any other alcohol with concentrations between 0.01 mM and 1 M, preferably, between 0.1 mM and 200 mM and, more preferably, between 0.5 mM and 10 mM. The incubation time may range between 1 s and 72 h, preferably between 5 min and 24 h.
    The resulting coatings 2 on the glass or glass ceramic base elements 1 provide hydrophobic properties. Also, when the compound (for example, FAS-n) is deposited by immersion on base elements 1 pretreated with laser, superhydrophobic properties can be obtained. In addition, the coated base elements 1 that have markings generated by ultraviolet radiation resist all the tests carried out and have a high chemical, mechanical and thermal resistance.
    While a reference base element (ceramic hob + marking generated by ultraviolet radiation) has a contact angle of <102 °, a base element 1 according to the invention (ceramic hob + marking generated by ultraviolet radiation + coating 2 of FAS-17) has An angle of contact with water of 160 °. After 3,000 standard operating cycles, the base element 1 according to the invention still has a water contact angle of 1170 without impeding the visibility of the marking when water is spilled on it.
    This indicates that an increase in the roughness of the base element 1 also improves the properties related to the adhesion of the coating 2. These results reveal that the simple immersion coating technique can be used for the preparation of superhydrophobic coatings with excellent stability.
    According to another embodiment, the spray technique has been used to deposit FAS-n on a glass or ceramic glass base element 1. The results have been similar to the aforementioned results obtained by the self-coupling processes. In some cases, spray coating greatly facilitates
    5 measure industrial processing and reduce solvent consumption.
    In another embodiment, a base element 1 with a glass surface has been coated with a compound of the general formula (CnH2n · wSiCI3) or with a compound of the general formula (CnH2n + l-Si (OCH3h), where n varies between 3 and 22. The resulting coatings showed similar superhydrophobic properties compared to those
    10 fluorinated compounds mentioned above. The use of these alternative sil ano derivatives reduces the cost of coating 2.
    Taking into account the excellent results obtained with the auto-coupled films of
    FAS-n on the base elements 1 of glass or glass ceramic pretreated with laser, have been
    examined other methods of deposition of compounds of the general formula (1). Table 1
    15 shows the variation of the contact angle for glass base elements 1 covered with FAS-17 using the indicated methods.
    Table 1
    Deposition method Water contact angle A n
    Incubation (5 min) 158
    Spray Coating 153
    Roller coating 128
    Application using a microfiber cloth 127
    In all cases, a significant change in the contact angle with the
    20 water A thanks to the coating 2 applied. Spray coating and immersion coating using the auto-coupling technique showed comparable results.
    In general, the advantages of household appliances and base elements 1 with the above-mentioned coatings include:
    25 Water-based liquid repellency in the touch control zones of induction cooking countertops. The possibility of avoiding condensation on the glass doors of the furnaces.
    Easier cleaning on any glass cooking surface.
    Easy factory implementation, as only immersion is required and the layer is
    auto coupling.
    Better properties with a simple process.
    s Those skilled in the art will understand that, while the present invention has been set forth with reference to preferred embodiments, various modifications, changes and additions to the previous invention may be made without abandoning the spirit and scope thereof. The values of the parameters used in the claims and in the description to define the process and measurement conditions to characterize the specific properties of the invention are also included within the framework of deviations, for example, as a result of measurement errors, errors of the system, weight errors, DIN tolerances, and the like.
    REFERENCE SYMBOLS
    one Base element
    2 Covering
    权利要求:
    Claims (11)
    [1]
    1. Method for coating a base element (1) for a household appliance component, which comprises at least the steps of providing a base element (1) with at least one surface with free hydroxyl groups; Y
    apply at least one compound of the general formula (1) CR '
    I '
    n (R1 2C)
    I
    R '-Yes - R'
    I
    R '(1)
    on said surface to generate a hydrophobic coating (2), where R1 and R2 are independently selected from each other from H and F; n = 0 to 40; and R3 10 are independently selected from each other from the and O (CmH2m + 1) with m = 1 to 10.
    [2]
    2. Method according to claim 1, wherein the base element (1) is cleaned and / or pretreated at least in parts before the compound is deposited.
    [3]
    3. Method according to claim 2, wherein the base element (1) is cleaned by the application of a cleaning agent and / or by ultrasonic cleaning.
    [4]
    4. Method according to claim 2 or 3, wherein the base element (1) is pretreated by drying and / or treatment with ozone and / or laser treatment.
    [5]
    5. Method according to any one of claims 1 to 4, wherein the base element (1) is coated with at least one layer of said compound by one or more of the spray coating, the dip coating, the
    Flow coating, roller coating, and brush coating, using a coating agent comprising said compound.
    [6]
    6. Method according to claim 5, wherein the base element (1) is coated by
    immersion of at least a part of the base element (1) once or multiple times during a predetermined incubation time in the coating agent.
    [7]
    7. Method according to claim 5 or 6, wherein the concentration of the compound in the coating agent is between 0.01 mM and 1 M, in particular between 0.1 mM and 200 mM and, preferably, between 0 , 5 mM and 10 mM.
    [8]
    8. Method according to any one of claims 5 to 7, wherein the coating agent contains a solvent, in particular, one or more of the water, hexane, isopropanol and / or ethanol and / or where the predetermined incubation time is between 1 second and 72 hours, in particular, between 5 minutes and
    10 24 hours.
    [9]
    9. Method according to any of claims 1 to 8, wherein the base element (1) is subsequently treated after the coating step.
    [10]
    Method according to any one of claims 1 to 9, wherein the base element (1) provided comprises a marking, in particular, a marking generated by ultraviolet and / or laser radiation, and wherein said compound is applied at least
    20 on a part of said marking.
    [11 ]
    eleven . Home appliance component comprising a base element (1), where at least one surface of the base element (1) is at least partially covered with at least one layer, which has been produced by applying at least
    25 a compound of the general formula (1)
    (one )
    on said surface to generate a hydrophobic coating (2), where R1 and R2 are independently selected from each other from H and F; n = 0 to 40; and R3
    they are independently selected from each other from the and O (CmH2m + 1) with m = 1 to 10.
    s 12. A household appliance component according to claim 11, wherein the coated surface of the base element (1) is superhydrophobic.
    10 13. Domestic appliance component according to claim 11 or 12, which is configured as a cooking field plate, as a door, or as a shelf for a domestic appliance. 14. Household appliance comprising at least one household appliance component with at least one base element (1), which has been produced by a method according to any one of claims 1 to 11 and at least one household appliance component according to any of claims 11 to 13.
    lS
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    同族专利:
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    引用文献:
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    ES201730384A|ES2682687B1|2017-03-21|2017-03-21|Method for coating a base element for a household appliance component, and household appliance component|ES201730384A| ES2682687B1|2017-03-21|2017-03-21|Method for coating a base element for a household appliance component, and household appliance component|
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