JP3071035U - Decorative materials for building or building surface finishing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative material for finishing a building or a building surface having an excellent surface antifouling function and extremely high weather resistance. SOLUTION: An ultraviolet absorbent is dispersed in a transparent matrix of (a) a base sheet 1, (b) a synthetic resin layer 2 in which an aggregate is dispersed, and (c) an inorganic binder or an inorganic-organic hybrid polymer binder. UV absorbing layer 3,
(D) A decorative material for finishing a building or a structure comprising a top layer 4 in which a photocatalyst is dispersed in a transparent matrix made of an inorganic binder or an inorganic-organic hybrid polymer binder.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to interior and exterior walls of buildings, surfaces of floors and pillars, and decorative materials for surface finishing of buildings. In particular, it relates to a decorative material for finishing a building or a building surface having a surface antifouling function and excellent weather resistance.

[0002]

[Prior art]

 Non-woven fabric made of synthetic resin, glass fiber, or other inorganic fiber, with synthetic resin emulsion and coating material containing aggregate such as marble powder (cold water stone powder) or other aggregate or colored aggregate such as colored silica sand or colored ceramic powder Decorative materials that have been applied to natural stones and the like by spray guns, trowel coating, roller coating, brush coating, etc., and applied to natural stones, etc. It is widely used as a sheet for finishing the surface of buildings, such as for decorating exterior walls or floors.

[0003] By the way, these are formed by forming a synthetic resin layer in which an aggregate is dispersed on a base sheet and further forming a top coat layer made of a transparent synthetic resin layer on the surface thereof. I have.

[0004]

[Problems to be solved by the invention]

 However, the surface of such decorative materials, including automobile exhaust gas, has become contaminated by contact with the atmosphere, which has become a source of pollution in recent years, exposure to the weather, and human touch. There is a problem that occurs. Also, since the surface contains a synthetic resin component, the surface is soft with a pencil hardness of less than H hardness and is therefore easily stained and easily penetrated, so that the stain resistance is relatively small. In addition, since the surface contains a synthetic resin component, the weather resistance is not always sufficient. If the surface is deteriorated by ultraviolet rays or the like, the surface becomes mechanically brittle and the mechanical strength decreases. There is a problem that it comes off from the surface. In particular, buildings have large areas, such as wall surfaces, and require work at heights. Cleaning them to remove dirt is not easy and costs a lot of money. If it has deteriorated due to ultraviolet rays, it will be necessary to replace it with a new decorative material, which is more expensive.

[0005] The present invention solves the problems of such a conventional building or a decorative material for finishing the surface of a building containing a synthetic resin material, has a superior surface antifouling function, and has an excellent high weather resistance. It is an object of the present invention to provide a decorative material for finishing an object or a structure.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the decorative material for finishing a building or a building surface according to the present invention is as follows.

[1] It is selected from the group consisting of (a) a base sheet, (b) a synthetic resin layer in which aggregate is dispersed, (c) an inorganic binder, an inorganic-organic hybrid polymer binder, and a synthetic resin binder. A UV absorber layer in which a UV absorber is dispersed in a transparent matrix, and (d) a top layer in which a photocatalyst is dispersed in a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder. Decorative material for surface finishing of objects or structures.

[2] (c) an ultraviolet absorbing layer in which an ultraviolet absorbing agent is dispersed in a transparent matrix selected from the group consisting of an inorganic binder, an inorganic-organic hybrid polymer binder, and a synthetic resin binder; (E) a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder between the top layer in which the photocatalyst is dispersed in a transparent matrix composed of a binder or an inorganic-organic hybrid polymer binder; The decorative material for finishing a surface of a building or a structure according to the above [1], further comprising a coating material layer.

[3] (d) The matrix component of the top layer in which the photocatalyst is dispersed in a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder is a transparent inorganic glass component or an inorganic-organic polymer. The decorative material for finishing a building or a structure according to any one of the above items [1] and [2], comprising a glass component.

[4] The building according to any one of [1] to [3], wherein the transparent matrix component of the ultraviolet absorbing layer of (c) comprises a transparent inorganic glass component or an inorganic-organic glass component. Decorative material for surface finishing of objects or structures.

[5] The method according to the above [2], wherein (e) the transparent coating material layer comprising an inorganic binder or an inorganic-organic hybrid polymer binder comprises a transparent inorganic glass component or an inorganic-organic glass component. Decorative materials for the finishing of buildings or structures.

[6] (d) The photocatalyst content in the top layer in which the photocatalyst is dispersed in a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder is 3 to 10% by mass. The decorative material for finishing a surface of a building or a structure according to any one of [1] to [5].

[7] The decorative material for finishing a building or a building surface according to any one of the above items [1] to [6], wherein the layer (d) is a layer that has been subjected to a heat treatment at 50 ° C. or higher after application.

[8] The decorative material for finishing a building or a building surface according to the above item [2], wherein the layer (e) is a layer that has been subjected to a heat treatment at 50 ° C. or higher after application.

[9] The (c) layer is an ultraviolet absorbing layer in which an ultraviolet absorbing agent is dispersed in a transparent matrix selected from the group consisting of an inorganic binder and an inorganic-organic hybrid polymer binder. The decorative material for finishing a building or a structure according to any one of the above-mentioned [1] to [8], which is a layer that has been subjected to a heat treatment at 50 ° C. or higher.

[10] The decorative material according to any one of [1] to [9], wherein the photocatalyst is powdery titanium oxide.

[11] Any one of the above-mentioned [1] to [10], wherein the aggregate is natural stone powder, silica sand, ceramic powder, glass powder, plastic powder or an aggregate composed of at least one of these artificial colorings. A decorative material for finishing a building or a structure according to the above.

[12] The decorative material for finishing a surface of a building or a structure according to any one of the above [1] to [11], wherein the base sheet is a cloth.

[0019]

[Embodiment of the invention]

 As the raw material of the one-component synthetic resin component constituting the synthetic resin layer (b) in which the aggregate of the decorative material of the present invention is dispersed, a synthetic resin emulsion or a synthetic resin solution is usually used. Synthetic resin emulsions are preferably used from the viewpoint that there is no need to consider the recovery of the organic solvent and environmental issues. In particular, a synthetic resin emulsion which satisfies weather resistance, alkali resistance, water resistance, adhesiveness, flexibility, water absorption resistance, and the like is preferable. Specific examples include acrylic resin emulsions (acrylic resin emulsions as well as acrylic resin emulsions). Acryl-styrene resin emulsions, acryl-urethane resin emulsions, acryl-silicone resin emulsions, acryl-fluorine resin emulsions), vinyl acetate resin emulsions such as ethylene-vinyl acetate resin, and vinyl chloride resin emulsions. Examples include urethane-based resin emulsions. In any of these resins, the matrix composed of the synthetic resin component after drying has appropriate flexibility. If the base material is a flexible base material, the obtained decorative material sheet is adhered to a curved surface. Construction is also possible. Among them, acryl-based resin emulsions are relatively inexpensive, but are more excellent in terms of weather resistance.Therefore, when they are used as surface finishing sheets for building and interior and exterior walls or floors of buildings, etc. It is preferable because it has long-term durability.

As the aggregate to be mixed with the synthetic resin emulsion or solution used in the present invention, various known aggregates conventionally used in the production of decorative materials having a natural stone pattern can be used. And so-called colored aggregates such as marble powder, granite powder, silica sand and other natural stone powder, ceramic powder, glass powder or artificially colored such as colored fired silica sand and colored ceramic powder. Inorganic materials represented by aggregates of at least one of natural stone fine granules, silica sand, ceramic fine granules, glass fine granules, and at least one of these colored materials are preferably used, but are not limited thereto. Alternatively, an aggregate made of an organic material such as plastic may be used. Aggregates made of organic materials such as plastics tend to be slightly more costly than aggregates made of inorganic materials.

Although the size of the aggregate is not particularly limited, it is preferable to use mainly an aggregate having a particle size of 0.01 to 3 mm. Here, when the aggregate is not spherical, the particle size is the largest particle in the state where the particle of the aggregate being observed is visible when observation is performed with an appropriate instrument such as a microscope during measurement. The diameter is used as the size of the aggregate particles.

It is to be noted that one or two or more kinds of artificially colored aggregates or particularly non-artificially colored materials as they are may be used in combination. The desired color tone and hand of the coating material layer formed by drying the material can be adjusted. Of course, the color tone may be adjusted by adding a pigment as needed. If the amount of the pigment is too large, it becomes a coating material layer such as paint, and it is difficult to give a natural stone-like texture.

The mixing ratio of the aggregate and the synthetic resin component is slightly different depending on the purpose, such as what kind of texture the decorative material should be or what kind of color the coating material should be. However, the proportion of the synthetic resin emulsion or solution is preferably about 5 to 20 parts by weight in terms of solids based on 100 parts by weight of the aggregate.

According to a preferred embodiment of this range, the amount of the synthetic resin component is sufficient to also serve as a binder for the aggregate, and the amount of the synthetic resin component is too large to cause shrinkage and cracks. A decorative material having no durable and durable strength can be provided.

In order to adjust the color tone of the coating material layer, the amount of one or more kinds of various aggregates and so-called colored aggregates obtained by artificially coloring these aggregates, the type and the particle size of the added aggregates This can be achieved by appropriately selecting and blending the color, or adding a colorant as necessary. It is also preferable to form a multicolor pattern by applying two or more kinds of coating materials having different color tones adjusted in this manner in an appropriate pattern shape.

In addition, a coating material composed of a synthetic resin emulsion or a solution in which the aggregate is dispersed may be reduced in weight by adding a lightening material as needed. As the lightening material, for example, a fine hollow substantially spherical synthetic resin capsule is preferably used. Specific examples thereof include, for example, "EXPANCEL" (manufactured by Akzo Nobel Co., Ltd .: foamed core of vinylidene chloride-acrylonitrile copolymer containing a foaming agent), "Matsumoto Microsphere" F-30E and MFL (Matsumoto Made by Yushi Pharmaceutical Co., Ltd .: A polymer hollow microsphere composite filler with a foaming agent-encapsulated foam of vinylidene chloride-acrylonitrile copolymer nucleus or a hybrid hollow microsphere whose surface is coated with inert inorganic powder Spheres) and other synthetic resin hollow microsphere capsules.

Further, a lightweight aggregate may be added to the coating material of the present invention, if necessary. The lightweight aggregate may be added in such a manner that a part of the aggregate is substituted for the aggregate. Lightweight aggregate is an aggregate that retains the role of the aggregate to some extent and has a smaller apparent specific gravity than ordinary aggregate, and is generally hollow or porous.

Specific examples of the lightweight aggregate include, for example, pearlite, ceramic balloons, silica balloons, pulverized polystyrene foam, a main component of which is calcium carbonate powder or other appropriate inorganic powder, and a synthetic resin component is a powder of the inorganic powder. A pulverized product of a foam (for example, “Rock Cell Board” manufactured by Fuji Kasei Kogyo Co., Ltd.) blended as a binder component may be used.

In addition, one or more colored flaky synthetic resin flakes may be separately added to the coating material in order to give a unique feel as required.

As the colored flaky synthetic resin flake, various known flakes can be used. Among them, it is preferable to use amorphous and flexible colored flaky resin flakes.

The average thickness of the flaky amorphous flexible resin flakes is preferably 1 mm or less, particularly about 0.2 to 0.9 mm, added to a coating material and extruded from a nozzle onto a substrate sheet. In the case where the flakes are applied, the flakes easily pass through the nozzle and are extremely flexible, so that the flake ends do not jump up from the surface of the decorative material even after the application, which is preferable.

Further, in order to obtain a unique feeling as required, mica flakes such as mica and colored mica may be separately added to the various coating materials. The ratio of the synthetic resin solid content of the synthetic resin emulsion or the solution to the mica flake is preferably 5 to 100 parts by weight of the synthetic resin solid content with respect to 1 part by weight of the mica flake.

The coating material as described above may further contain a film-forming aid, a thickening agent, a defoaming agent, a pH adjuster, a pigment, etc., if necessary, or water to reduce the viscosity. Or an appropriate solvent may be added.

As a thickening agent, for example, a methylcellulose-based one (eg, “Hymetroze 90SH-30000”, manufactured by Shin-Etsu Chemical Co., Ltd.), as a film-forming aid, for example, butyl carbitol acetate, and as a defoaming agent, For example, concentrated ammonia water or the like is suitably used as a pH adjuster such as “NOPCOSANTO NXZ” (manufactured by SAN NOPCOSAN CORPORATION), but is not limited thereto.

In the decorative material of the present invention, (b) the base sheet is present on the back side of the synthetic resin layer in which the aggregate is dispersed, and a cloth-like material is particularly preferable as the base sheet. Specifically, for example, non-woven fabrics and woven fabrics made of synthetic fibers and inorganic fibers, for example, non-woven fabrics made of acrylic fibers and polyester fibers, cold cloths, glass fiber woven fabrics, glass wool non-woven fabrics, and synthetic papers Is preferred. Non-absorbent or low-absorbent fabrics are preferred because those with high water absorption tend to expand due to moisture and tend to shrink during drying, and the product after drying may be warped and deformed. However, the use of non-absorbent or low-absorbent fabrics is preferred because such problems do not occur.

Further, the cloth-like sheet substrate is preferable because it can be applied to a curved surface because the flexibility of the decorative material is not impaired. Examples of base sheets used other than cloth-like materials include wood boards, wood plywood, concrete panel extruded cement boards, gypsum boards, silica boards (calcium silicate boards), aluminum sheets, zinc-coated steel sheets, and other metals. A plate, metal wire mesh, expanded metal, rubber sheet, synthetic resin sheet, foam sheet, or the like may be used.

Next, (b) a transparent resin selected from the group consisting of an inorganic binder, an inorganic-organic hybrid polymer binder and a synthetic resin binder formed on the upper surface of the synthetic resin layer in which the aggregate is dispersed. An ultraviolet absorbing layer in which an ultraviolet absorbent is dispersed in a matrix will be described.

The UV absorber used is not particularly limited, and may be a salicylic acid-based UV absorber, a benzophenone-based UV absorber, a benzotriazole-based UV absorber, a cyanoacrylate-based UV absorber, and various other types. UV absorbers can be used. More preferably, they are used in combination with a light stabilizer such as a hindered amine light stabilizer. The amount of these added to the ultraviolet absorbing layer (c) is not particularly limited, but is preferably about 0.3 to 3% by mass of the ultraviolet absorbent or the combined use of the ultraviolet absorbent and the light stabilizer. . As the inorganic binder, inorganic-organic hybrid polymer binder and synthetic resin binder which are constituents of the layer (c), an inorganic binder or an inorganic-organic hybrid polymer binder is particularly preferred. Since the manufacturing process is simple in that heat treatment or the like is not required, and the layer (c) is not an outermost layer but an intermediate layer, it is possible to use a synthetic resin binder which is an organic compound. Good. All of the inorganic binder, the inorganic-organic hybrid polymer binder, and the synthetic resin binder must be capable of forming a transparent layer at the stage of solidification.

As the synthetic resin binder component, substantially the same synthetic resin as described above as the synthetic resin component of the layer (b) can be used, and can be used in the form of a synthetic resin emulsion or a solution.

Specific examples include, for example, acrylic resin emulsions (acrylic resin emulsions, acrylic-styrene resin emulsions, acrylic-urethane resin emulsions, acrylic-silicone resin emulsions, and acrylic-fluorine resin emulsions). ), A fluororesin emulsion, a vinyl acetate resin emulsion such as an ethylene-vinyl acetate resin, a vinyl chloride resin emulsion, a urethane resin emulsion, and the like. Among them, acryl-urethane resin emulsion, acryl-silicone resin emulsion, acryl-fluorine resin emulsion, and fluororesin emulsion are particularly preferable from the viewpoint of weather resistance.

As the inorganic binder, those capable of forming an inorganic transparent coating material layer are used, and those capable of forming an inorganic glass layer are preferably used. Examples of the formed glass layer include glass such as SiO ₂ , Al ₂ O ₃ , SiO ₂ —Al ₂ O _3, or SiO ₂ —TiO ₂ .

Examples of the raw material for the inorganic glass layer include alkyl trialkoxysilanes such as RSi (OR) ₃ and Si (OR) ₄ (where R represents a lower alkyl group having 10 or less carbon atoms) or tetraalkylsilane. Polysiloxanes obtained by hydrolyzing an alkoxysilane or the like and further condensing it with a lower alcohol to form a polysiloxane oligomer, followed by heating and curing are preferred. Commercially available products include, for example, grades “HPC7002”, “HPC7501”, “HPC7004”, and “HPC7003” of “Glaska” manufactured by JSR Corporation.

Other examples of the inorganic binder capable of forming an inorganic glass layer include those obtained by using a metal alkoxide and hydrolyzing and heat-treating to form a gel.

Examples of the metal alkoxide as a raw material for forming the inorganic glass layer include lower alkoxides of silicon such as tetramethoxysilane and tetraethoxysilane, and lower alkoxides of aluminum such as trimethoxyaluminum and tri-butoxyaluminum. In addition to alkoxides, lower alkoxides of titanium such as tetramethoxytitanium and tetrapropoxytitanium and the like, lower alkoxides of various metals capable of forming a transparent glass layer by gelling by hydrolysis, and the like. As a dispersion medium of such an alkoxide, water and / or a lower alcohol such as methanol or ethanol is used, and as a hydrolysis catalyst, an acid or alkali such as hydrochloric acid or ammonia is used. When gelling a metal alkoxide sol, it is common to add a hydrolysis catalyst, hydrolyze and heat treat.

As a binder capable of forming a transparent matrix composed of an inorganic-organic hybrid polymer binder, a binder capable of forming a transparent coating material layer of an inorganic-organic hybrid polymer is used, and an inorganic-organic glass layer is used. Those that can be formed are preferably used.

As a raw material of the inorganic-organic glass layer, an alkoxysilyl group-containing organic polymer represented by —Si (OR) ₃ (where R represents a lower alkyl group having 10 or less carbon atoms) includes R _n Si (OR) _4-n (where R represents a lower alkyl group having 10 or less carbon atoms, and n represents an integer of 1 or 2) by hydrolyzing and co-condensing the alkoxysilanes. The resulting inorganic-organic glass layer is preferred. Examples of commercially available products include “Glaska” grade “HPC7506” and “W58D” of JSR Corporation.

The various inorganic glass layers and inorganic-organic glass layers exemplified above require a heat treatment after coating, but can be heat-treated at a relatively low temperature of 50 to 120 ° C., for example, in the range of about 80 ° C. It is effective to do with Since heat treatment can be performed at a relatively low temperature in this manner, (b) a transparent matrix made of an inorganic binder or an inorganic-organic hybrid polymer binder without adversely affecting the synthetic resin layer in which the aggregate is dispersed. An ultraviolet absorbing layer in which an ultraviolet absorbing agent is dispersed can be formed.

Furthermore, the present invention does not apply (b) a decorative resin layer by spraying a synthetic resin layer in which aggregate is dispersed on a building wall or the like in the field, but a sheet that can be produced in a factory. Therefore, the heat treatment described above is also an important feature of the present invention. If the decoration material layer is applied by spraying on site, heat treatment must be performed from the building surface, which makes heat treatment difficult.

Since the inorganic binder or the inorganic-organic hybrid polymer binder as described above has excellent weather resistance, a decorative material having better durability can be obtained than using a synthetic resin binder. .

Next, the photocatalyst of the top layer in which the photocatalyst is dispersed in (d) a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder to be the outermost layer is excited by light energy. The photocatalyst is not particularly limited as long as it is a so-called photocatalyst that promotes the oxidation-reduction reaction. However, titanium oxide generally has a large function of accelerating the oxidation reaction and is preferable. Among them, titanium oxide having a crystal form of anatase is more preferable.

The photocatalyst is usually in the form of powdery fine particles so as to increase the contact area. The particle diameter of the photocatalyst powder is not particularly limited, but is preferably about 20 to 3 nm.

The content of the photocatalyst in the (d) top layer in which the photocatalyst is dispersed is not particularly limited, but is preferably about 3 to 10% by mass.

The photocatalyst is applied on the ultraviolet absorbing layer (c) in a state of being dispersed in a binder composed of an inorganic binder or a transparent matrix composed of an inorganic-organic hybrid polymer binder, and cured.

As the inorganic binder or the inorganic-organic hybrid polymer binder, the same inorganic binder or inorganic-organic hybrid polymer binder as described in the ultraviolet absorbing layer (c) can be used. However, a synthetic resin binder cannot be used. As the inorganic binder or the inorganic-organic hybrid polymer binder, those capable of forming a transparent inorganic glass component or an inorganic-organic glass component as described above are preferable.

A coating material in which a photocatalyst is dispersed in a transparent matrix-forming fluid binder composed of an inorganic binder or an inorganic-organic hybrid polymer binder is a photocatalytic titanium oxide paint “ST” manufactured by Ishihara Techno Co., Ltd. -K01 "or" ST-K03 ", or" Tinoc "manufactured by Taki Kagaku Co., Ltd. The use of simplifies adjustment and is convenient.

This layer also requires heat treatment after application, but can be heat-treated at a relatively low temperature of 50 to 120 ° C., for example, it is effective to perform the heat treatment at a temperature of about 80 ° C. As you did.

As described above, the above-described embodiment is characterized in that the photocatalyst is dispersed directly on the ultraviolet absorbing layer (c) in the transparent matrix (d) made of an inorganic binder or an inorganic-organic hybrid polymer binder. Although the case of forming the layer has been described, more preferably, the photocatalyst is dispersed in a transparent matrix composed of (c) the ultraviolet absorbing layer and (d) an inorganic binder or an inorganic-organic hybrid polymer binder. It is preferable that a transparent coating material layer made of (e) an inorganic binder or an inorganic-organic hybrid polymer binder is further interposed between the top layer and the top layer.

The presence of a layer composed of an inorganic binder such as a glass layer or an inorganic-organic hybrid polymer binder, including the layer (c) and the layer (d), significantly improves the weather resistance, which is preferable. By the presence of the layer (e), the surface protection of the synthetic resin layer (b) in which the aggregate is dispersed can be further improved by the three layers (c), (e) and (d). In addition, when (d) the top layer in which the photocatalyst is dispersed and the (c) layer containing an organic substance such as an ultraviolet absorber are in direct contact, the photocatalyst of the photocatalyst-containing layer makes contact (c). ) The effect of the oxidation-reduction reaction by the photocatalyst on the surface of the layer can be blocked by interposing the coating material layer of (e), so that the weather resistance can be provided for a longer time and the water resistance can be further improved. And so on, preferable.

As the transparent coating material layer composed of the inorganic binder or the inorganic-organic hybrid polymer binder (e), an inorganic glass layer or an inorganic-organic glass layer is preferable. The same binder component as the inorganic glass layer or the organic-organic glass layer described in the layer (c) can be preferably used.

This layer also requires a heat treatment after application, but can be heat-treated at a relatively low temperature of 50 to 120 ° C., for example, it is effective to perform the heat treatment at about 80 ° C. As you did.

FIG. 1 is a cross-sectional view of an embodiment of a decorative material for finishing a building or a structure according to the present invention.

1 is (a) a base sheet, 2 is (b) a synthetic resin layer in which an aggregate is dispersed, and 3 is (c) a UV-absorbing material in a transparent matrix of an inorganic binder or an inorganic-organic hybrid polymer binder. An ultraviolet absorbing layer in which the agent is dispersed, and 4 is a top layer in which the photocatalyst is dispersed in (d) a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder.

FIG. 2 is a sectional view of another embodiment of the decorative material for finishing a building or a structure according to the present invention.

1 was a (a) base sheet, 2 was (b) a synthetic resin layer in which aggregate was dispersed, and 3 ′ was a transparent matrix composed of (c) a synthetic resin binder in which an ultraviolet absorber was dispersed. The ultraviolet absorbing layer 4 is a top layer in which a photocatalyst is dispersed in a transparent matrix composed of (d) an inorganic binder or an inorganic-organic hybrid polymer binder. The decorative material shown in FIG. 1 is different from the decorative material shown in FIG. 1 in that the binder of the ultraviolet absorbing layer 3 of the decorative material shown in FIG. 1 is made of an inorganic binder or an inorganic-organic hybrid polymer binder. The material is that the ultraviolet absorbing layer 3 'is made of a synthetic resin binder. The decorative material of the embodiment shown in FIG. 1 has better weather resistance in view of the above difference, but the embodiment shown in FIG. 2 also has extremely good weather resistance.

FIG. 3 is a sectional view of another embodiment of the decorative material for finishing a building or a structure according to the present invention.

1 is (a) a base sheet, 2 is (b) a synthetic resin layer in which aggregate is dispersed, and 3 ′ is (c) a transparent matrix composed of a synthetic resin binder in which an ultraviolet absorber is dispersed. The ultraviolet absorbing layer 4 is a top layer in which a photocatalyst is dispersed in a transparent matrix composed of (d) an inorganic binder or an inorganic-organic hybrid polymer binder. In this embodiment, an ultraviolet absorbing layer in which an ultraviolet absorber is dispersed in a transparent matrix made of a 3 ′ (c) synthetic resin binder and 4 (d) an inorganic binder or an inorganic-organic hybrid polymer binder (E) an inorganic binder or an inorganic-organic hybrid polymer binder as shown in (5), wherein a transparent coating material layer comprising a binder is further interposed between the transparent matrix and the top layer in which the photocatalyst is dispersed in a transparent matrix. doing. When the synthetic resin binder is used as the 3 ′ (c) layer as described above, a transparent matrix composed of (d) an inorganic binder or an inorganic-organic hybrid polymer binder is directly provided thereon. By laminating a transparent coating material layer made of an inorganic binder or an inorganic-organic hybrid polymer binder as indicated by 5, rather than laminating a top layer having a photocatalyst dispersed therein, (D) When the top layer in which the photocatalyst is dispersed and the (c) layer containing an organic material such as a synthetic resin binder are in direct contact, the action of the photocatalyst of the photocatalyst containing layer causes the contact of the (c) layer The effect of the oxidation-reduction reaction by the photocatalyst on the surface can be blocked by interposing the coating material layer (e), and the presence of the additional layer (e) is also possible. Such as water resistance also improved, which is preferable.

The embodiments shown in FIGS. 1, 2 and 3 show an example in which the surface has an uneven three-dimensional pattern. For example, the surface has a flat shape such as a surface polished finish. The shape is arbitrary as long as the object of the present invention is achieved.

Although not particularly limited, (c) an ultraviolet absorber in which an ultraviolet absorber is dispersed in a transparent matrix selected from the group consisting of an inorganic binder, an inorganic-organic hybrid polymer binder, and a synthetic resin binder The thickness of the layer is preferably about 0.1 to 10 μm, and the thickness of the top layer in which the photocatalyst is dispersed in (d) a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder is 0.1 μm. The thickness of the transparent coating material layer composed of (e) an inorganic binder or an inorganic-organic hybrid polymer binder is preferably about 0.1 to 10 μm.

[0069]

[Effect of the invention]

 Thus, the decorative material for building or building surface finishing of the present invention has (d) a top layer in which the photocatalyst is dispersed in a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder. Exhibits self-cleaning properties and excellent antifouling properties.Even if dirt adheres, it is easily washed off with water, and because it is made of inorganic binder or inorganic-organic hybrid polymer binder, its film hardness is high and dirt adheres. Even hard to get inside. Moreover, due to the presence of the layer (d), and also the layers (d) and (e), the inorganic feeling of the synthetic resin layer (b) in which the aggregate is dispersed is brought out, for example, when the appearance is natural stone tone. In addition, a texture close to natural stone can be obtained, and an excellent effect such as a significant improvement in weather resistance can be exhibited because the ultraviolet absorbing layer of the layer (c) is present. Therefore, as a decorative material for finishing a building or a building surface, the required long-term durability and antifouling property are exhibited, and the decorative material of the present invention is lighter than natural stone and brittle like natural stone. Since it is not so, there is little danger of dropping during work or chipping even if a slight impact is applied due to carelessness during transportation, etc., making it easy to handle and work easily at high altitudes. It can also be used for outdoor applications that cannot be used with metamorphic rocks that are vulnerable to acid rain such as marble. In addition, when used on the inner wall or the like, it is preferable because dirt due to cigarette smoke can be prevented.

Therefore, the decorative material of the present invention can be used for the surface of a building or a building, for example, the interior and exterior walls and floor, the surface of a pillar, the surface of a fence, the slope of a residential land, the retaining wall for a building, an elevated It is suitably used as a decorative material for surface finishing, such as the exterior of walls and pillars of roads and bridges, the outer walls of pedestrian bridges, and entrances and exits of tunnels.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an embodiment of a decorative material for finishing a building or a building surface according to the present invention.

FIG. 2 is a cross-sectional view of another embodiment of the decorative material for finishing a building or a building surface according to the present invention.

FIG. 3 is a cross-sectional view of still another embodiment of the decorative material for finishing a building or a structure according to the present invention.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 Base sheet 2 Synthetic resin layer in which aggregate is dispersed 3 Ultraviolet absorbing layer in which ultraviolet absorber is dispersed in transparent matrix of inorganic binder or inorganic-organic hybrid polymer binder 3 'Transparent matrix composed of synthetic resin binder An ultraviolet absorbing layer in which an ultraviolet absorber is dispersed 4 a top layer in which a photocatalyst is dispersed in a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder 5 an inorganic binder or an inorganic-organic hybrid polymer binder Transparent coating material layer consisting of

Continued on the front page (51) Int.Cl. ⁷ Identification code FI B32B 33/00 B32B 33/00 E04F 13/00 E04F 13/00 B

Claims (12)

[Utility model registration claims] 1. A transparent sheet selected from the group consisting of (a) a base sheet, (b) a synthetic resin layer in which aggregate is dispersed, (c) an inorganic binder, an inorganic-organic hybrid polymer binder, and a synthetic resin binder. The surface of a building or building comprising: an ultraviolet absorbing layer in which an ultraviolet absorbent is dispersed in a matrix; and (d) a top layer in which a photocatalyst is dispersed in a transparent matrix composed of an inorganic binder or an inorganic-organic hybrid polymer binder. Decoration material for finishing. 2. An ultraviolet absorbing layer in which an ultraviolet absorbing agent is dispersed in a transparent matrix selected from the group consisting of (c) an inorganic binder, an inorganic-organic hybrid polymer binder, and a synthetic resin binder; and (d) an inorganic binder. Or (e) a transparent coating material layer composed of an inorganic binder or an inorganic-organic hybrid polymer binder between the transparent catalyst and a top layer in which a photocatalyst is dispersed in a transparent matrix composed of an inorganic-organic hybrid polymer binder. The decorative material for finishing a building or a structure surface according to claim 1, further comprising an intervening material. (D) an inorganic binder or an inorganic binder;
The building according to claim 1, wherein the matrix component of the top layer in which the photocatalyst is dispersed in a transparent matrix comprising an organic hybrid polymer binder comprises a transparent inorganic glass component or an inorganic-organic glass component. Decoration material for surface finishing of structures. 4. The building or building surface finishing method according to claim 1, wherein the transparent matrix component of the ultraviolet absorbing layer (c) comprises a transparent inorganic glass component or an inorganic-organic glass component. Decoration materials. 5. An inorganic binder or an inorganic binder.
The decorative material for finishing a building or a building according to claim 2, wherein the transparent coating material layer comprising an organic hybrid polymer binder comprises a transparent inorganic glass component or an inorganic-organic glass component. 6. An inorganic binder or an inorganic binder.
In the top layer in which the photocatalyst is dispersed in a transparent matrix composed of an organic hybrid polymer binder,
The decorative material for finishing a building or a building surface according to any one of claims 1 to 5, wherein the content of the photocatalyst is 3 to 10% by mass. 7. The decorative material for finishing a building or a building surface according to claim 1, wherein the layer (d) is a layer that has been subjected to a heat treatment at 50 ° C. or higher after the application. 8. The decorative material for finishing a building or a building surface according to claim 2, wherein the layer (e) is a layer that has been subjected to a heat treatment at 50 ° C. or higher after the application. 9. The layer (c) is an ultraviolet absorbing layer in which an ultraviolet absorbing agent is dispersed in a transparent matrix selected from the group consisting of an inorganic binder and an inorganic-organic hybrid polymer binder. The decorative material for finishing a building or a building surface according to any one of claims 1 to 8, which is a layer that has been subjected to a heat treatment as described above. 10. The decorative material according to claim 1, wherein the photocatalyst is a powdery titanium oxide. 11. The building according to claim 1, wherein the aggregate is an aggregate made of at least one of natural stone powder, silica sand, ceramic powder, glass powder, plastic powder, and artificial coloring thereof. Or decorative material for finishing the construction surface. 12. The substrate according to claim 1, wherein the base sheet is a cloth.
12. The decorative material for finishing a surface of a building or a structure according to any of 11 above.