JP3174008U - Laminated body - Google Patents

Abstract

Provided is a laminate having a sufficient heat-resistant protective property and having an excellent design such as a wood texture.
A laminated body is formed by laminating a thermal expansion layer 3 on a substrate 1, and further laminating a decorative layer 4 on the surface of the thermal expansion layer. The thermal expansion layer includes a thermoplastic resin, a flame retardant, a foaming agent, a carbonizing agent, and a filler, and has a concavo-convex pattern on the surface thereof, and a decorative layer is laminated continuously or discontinuously on the surface of the thermal expansion layer. Has been.
[Selection] Figure 1

Description

The present invention relates to a novel laminate.

When a structure such as a building or a civil engineering structure is exposed to a high temperature due to a fire or the like, there is a problem that the physical strength of the base material constituting the structure rapidly decreases. In particular, when the base material is wood, the wood easily burns. For this reason, it is necessary to ensure the heat resistance of wood and prevent or delay combustion. On the other hand, various methods have been proposed, such as (a) a method of applying or impregnating an inorganic flame retardant liquid agent, and (b) a method of covering a material that is foamed and insulated by heat in a fire. ing.

  As the method (a), for example, Patent Document 1 describes that wood is impregnated with a solution containing an alkyl silicate compound, and the alkyl silicate compound is cured in wood to be polymerized. Moreover, as a method of (b) above, for example, Patent Document 2 describes that a layer made of a foamable fire-resistant paint and a fiber fabric is laminated on the surface of wood.

Japanese Patent Laid-Open No. 3-30907 JP-A-4-175152

However, as in Patent Document 1, when a flame retardant liquid is impregnated in wood, a certain degree of fire-proof performance can be obtained while maintaining the texture of the wood, but performance sufficient to withstand at high temperatures is imparted. It ’s difficult. On the other hand, when the layer which consists of a foamable fire-proof paint like patent document 2 is laminated | stacked, although excellent heat resistance can be exhibited, since the wood surface is covered, the texture of wood will be impaired.

The present invention has been made to solve the above-described problems, and provides a laminate having a sufficient heat-resistant protective property and an excellent design such as wood texture. The present invention has the following features.
1. A laminate in which a thermal expansion layer is laminated on a base material, and a decorative layer is further laminated on the surface of the thermal expansion layer,
The thermal expansion layer contains a thermoplastic resin, a flame retardant, a foaming agent, a carbonizing agent and a filler, and has a concavo-convex pattern on the surface thereof,
A laminate in which the decorative layer is laminated continuously or discontinuously on the surface of the thermal expansion layer.
2. The thermal expansion layer is provided with a grainy concavo-convex pattern. The laminated body as described in.
3. The thermal expansion layer further contains a colorant. Or 2. The laminated body as described in.
4). The decorative layer is a transparent or translucent colored layer. ~ 3. The laminated body in any one of.
5. The base material is a wooden member. ~ 4. The laminated body in any one of.
6). The substrate has a curved portion. ~ 5. The laminated body in any one of.

The laminate of the present invention has a sufficient heat-resistant protection and has a design that is excellent in aesthetics such as wood texture. Specifically, the following effects can be obtained.

Above 1. According to the laminate of the present invention, when the thermal expansion layer and the decorative layer having a concavo-convex pattern are laminated on the base material, the laminate has excellent design properties and is exposed to a high temperature due to a fire or the like. The entire material can exhibit heat resistance protection.

2. According to the laminate, in addition to the above effects, a design having a wood texture can be easily imparted to the laminate.

3. above. According to this laminate, in addition to the above effects, the design of the laminate can be further improved.

  4. above. According to this laminate, in addition to the above effects, a deeper design can be imparted by the overlapping of the hues of the thermal expansion layer and the decorative layer.

  5. above. According to the laminate of the present invention, even when the base material is a wooden member, it has excellent design properties, and when it is exposed to high temperatures due to a fire or the like, it can exhibit heat resistance protection on the whole base material. it can.

  Above 6. According to the laminate of the present invention, even when the substrate has a curved portion, it has excellent design properties, and when exposed to high temperatures due to a fire or the like, it can exhibit heat resistance protection on the entire substrate. it can.

FIG. 1 is a view showing an example of a cross-sectional view of the laminate of the present invention. FIG. 2 is a view showing another example of a cross-sectional view of the laminate of the present invention. FIG. 3 is a view showing another example of a cross-sectional view of the inventive laminate. FIG. 4 is a view showing another example of a cross-sectional view of the laminate of the present invention.

  Hereinafter, embodiments for carrying out the present invention will be described in detail.

In the laminate of the present invention, a thermal expansion layer is laminated on a base material via an adhesive, and a decorative layer is further laminated on the thermal expansion layer.

An example of the laminated body of this invention is shown in FIGS.
In FIG. 1, a thermal expansion layer 3 and a decorative layer 4 are sequentially provided on the base material 1.

  The base material 1 of the present invention corresponds to a part that requires heat protection in a structure such as a building or a civil engineering structure, for example, each part such as a wall, a pillar, a floor, a beam, a ceiling, and a staircase. In particular, the laminate of the present invention is effective when applied to parts such as columns, floors, beams, walls, etc., where design is required. Such a part may be any member made of a steel material, concrete, a wooden member, a resin member, or the like. Specifically, an H column, a round column, a prism, a folded plate, a deck plate, and the like can be given.

  In particular, the present invention can exhibit sufficiently excellent heat-resistant protection even when the substrate 1 is a wood member. Moreover, the designability which has the wood texture like a base material can be provided by laminating | stacking the below-mentioned decorative layer.

The thermal expansion layer 3 of the present invention foams when the ambient temperature reaches a predetermined foaming temperature due to a fire or the like, and forms a carbonized heat insulating layer. As the thermal expansion layer 3, one containing a thermoplastic resin, a flame retardant, a foaming agent, a carbonizing agent and a filler as a constituent component is suitable.

Among these, examples of the thermoplastic resin include acrylic resin, acrylic / styrene copolymer resin, epoxy resin, urethane resin, polyester resin, polybutadiene resin, alkyd resin, polyvinyl chloride, polyethylene, vinyl acetate resin, vinyl acetate / acrylic copolymer. Polymerized resin, ethylene / vinyl acetate synthetic resin, vinyl acetate / versaic acid vinyl ester copolymer resin, vinyl acetate / versaic acid vinyl ester / acrylic copolymer resin, vinyl toluene / butadiene copolymer resin, vinyl toluene / acrylic acid ester copolymer Resin, vinyl toluene-methacrylic acid ester copolymer resin, styrene / butadiene copolymer resin, ethylene / methacrylic acid ester copolymer resin, or two monomers constituting these copolymer resins and acrylic acid monomer, Resins such as terpolymers of acrylic acid monomers. These thermoplastic resins can be used alone or in combination of two or more.

The flame retardant exhibits at least one effect such as a dehydration cooling effect, an incombustible gas generation effect, and a carbonization promoting effect in a fire, and prevents or suppresses resin combustion. Examples of flame retardants include chlorine compounds such as chlorinated polyphenyl, chlorinated polyethylene, diphenyl chloride, triphenyl chloride, pentachloride fatty acid ester, perchloropentacyclodecane, chlorinated naphthalene, and tetrachlorophthalic anhydride; antimony trioxide Antimony compounds such as antimony pentachloride; phosphorus compounds such as tricresyl phosphate, diphenyl cresyl phosphate, diphenyl octyl phosphate, phosphorus trichloride, phosphorus pentachloride, ammonium phosphate, ammonium polyphosphate; other zinc borate, Examples include inorganic compounds such as sodium borate.

The foaming agent produces an incombustible gas in the event of a fire, foams a carbonizing binder and the following carbonizing agent, and exhibits an effect of forming a carbonized heat insulating layer containing pores. Examples of the foaming agent include melamine and derivatives thereof, dicyandiamide and derivatives thereof, azodicarbonamide, urea and thiourea.

The carbonizing agent exhibits the effect of forming a thick carbonized heat insulating layer with excellent heat insulating properties by dehydrating and carbonizing itself with the carbonization of the resin due to a fire. Examples of the carbonizing agent include polyhydric alcohols such as pentaerythritol, dipentaerythritol, and trimethylolpropane; starch, casein and the like.

A filler exhibits the effect which improves the intensity | strength of a carbonization heat insulation layer and improves heat-resistant protection. Examples of the filler include silicates such as talc; carbonates such as calcium carbonate and sodium carbonate; metal oxides such as aluminum oxide, titanium dioxide, and zinc oxide; natural minerals such as clay, clay, shirasu, and mica. Is mentioned.

The ratio of each of the above components constituting the thermal expansion layer 3 is about 200 to 600 parts by weight of the flame retardant, about 40 to 150 parts by weight of the foaming agent, and 40 to 150 parts by weight of the carbonizing agent with respect to 100 parts by weight of the thermoplastic resin. The filler may be about 50 to 160 parts by weight. In this invention, while preparing each component by such a ratio, the flexibility can be provided to the thermal expansion layer 3 by selecting the kind of thermoplastic resin suitably.

In the present invention, the thermal expansion layer 3 can be colored in an arbitrary hue by further using a colorant as a component constituting the thermal expansion layer 3. As the colorant, known color pigments, color dyes, and the like can be used. By coloring the thermal expansion layer 3, the design of the laminate can be improved. Further, a deeper design can be imparted by overlapping the hue with a decorative layer described later.

Moreover, as a component which comprises the thermal expansion layer 3, a reinforcing fiber, a plasticizer, etc. can be used suitably other than the said component, for example. These are also suitable for improving the flexibility of the thermal expansion layer 3.

Such a thermal expansion layer 3 can be produced by molding a mixture of the above-described components by a known method. Examples of the shape of the thermal expansion layer 3 include a sheet shape and a board shape. In the present invention, a sheet-like thermal expansion sheet is preferable. Moreover, such a thermal expansion layer 3 may have a well-known organic or inorganic woven fabric, a nonwoven fabric, a fiber sheet, such as a mesh sheet, or a composite fiber sheet. The thermal expansion layer 3 can also be formed by applying a mixture of the above components to a substrate and drying. The thickness of the thermal expansion layer 3 may be appropriately set according to its performance, application site, etc., but is usually about 0.2 to 10 mm, preferably about 0.5 to 6 mm.

The thermal expansion layer 3 has an uneven pattern on the surface. Specifically, as the uneven pattern, Yuzu skin pattern, ripple pattern, stucco pattern, sand wall pattern, stone pattern, rock texture pattern, sandstone pattern, blown pattern, lunar pattern, comb pattern, insect-eating pattern, wood grain pattern, Various uneven patterns such as a streak pattern, a lattice pattern, and a geometric pattern are listed. In the present invention, it is particularly preferable to have a wood grain pattern. Such a concavo-convex pattern can be imparted by molding or embossing when the thermal expansion layer is formed.

The degree of unevenness of the thermal expansion layer 3 preferably has a height difference of 0.05 mm to 8 mm (more preferably 0.1 mm to 5 mm). In such a range, a concavo-convex pattern is utilized and the laminated body excellent in the designability can be obtained.

When the thermal expansion layer 3 has such a concavo-convex pattern, excellent design properties can be imparted. Even if the base material has unevenness such as unevenness, the unevenness portion of the base material becomes inconspicuous due to the unevenness pattern of the thermal expansion layer 3, and the finish is excellent in aesthetics. Furthermore, even if it is a case where it sticks with respect to the curved part 1a of a base material like FIG. 2, when the thermal expansion layer 3 foams at the time of high temperature by a fire etc., a local distortion does not arise easily. As a result, the formed carbonized heat insulating layer does not cause large cracks and cracks that reach the base material, and can exhibit excellent heat resistance protection. Examples of the curved portion include a round column, a corner portion (edge portion) such as a prism or an H column, and a folded plate.

If necessary, the thermal expansion layer 3 can be laminated on the base material via the adhesive 2 (FIG. 3). As the adhesive 2, a known adhesive or a commercially available product can be used. For example, a vinyl acetate adhesive, a urethane adhesive, an epoxy adhesive, an acrylic adhesive, a synthetic rubber adhesive, a fiber base adhesive, and the like. Etc. can be used.

  The decorative layer 4 of the present invention is laminated on the surface of the thermal expansion layer 3 and can enhance the design of the thermal expansion layer 3. Moreover, durability etc. of the thermal expansion layer 3 can also be improved. The decorative layer 4 may be any layer that does not hinder the effects of the thermal expansion layer 3, and examples thereof include a layer formed of a coating film having various colors, a thermoplastic resin sheet, and the like. In particular, in the present invention, the decorative layer 4 is preferably a transparent or translucent colored layer. Thereby, the uneven | corrugated pattern of the thermal expansion layer 3 can be visually recognized through the decorative layer 4, and the design property which was further excellent in aesthetics by the overlap of a thermal expansion layer and a decorative layer can be provided. Further, the decorative layer preferably has flexibility.

  The hue and pattern of the decorative layer 4 are appropriately set according to the uneven pattern of the thermal expansion layer 3. For example, when the thermal expansion layer 3 has a grainy uneven pattern, it is preferable to laminate the decorative layer 4 having a wood texture.

As an aspect of the decorative layer 4, what is necessary is just to be laminated | stacked on the surface of the thermal expansion layer 3 continuously or discontinuously. The mode of the decorative layer 4 is shown in FIGS.
(A) is one in which the decorative layer 4 a is continuously laminated along the uneven pattern of the thermal expansion layer 3.
(B) is one in which the decorative layer 4 b is continuously laminated so as to cover the uneven pattern of the thermal expansion layer 3. At this time, the decorative layer 4b is preferably a translucent colored layer.
In (c), the decorative layers 4c, 4d, and 4e are laminated only on the convex portion of the thermal expansion layer 3, and the decorative layers 4c to 4e are the same or different.
In (d), the decorative layers 4f and 4g are laminated only on the concave portions of the thermal expansion layer 3, and the decorative layers 4f and 4g may be the same or different.
(E) is a laminate in which two or more different decorative layers 4 h to 4 l are laminated on the concave and convex portions of the thermal expansion layer 3.
(F) is a decorative layer different from the decorative layers 4m and 4n so that the decorative layers 4m and 4n are laminated on the concave portions of the thermal expansion layer 3 and further covers the thermal expansion layer 3 and the decorative layers 4m and 4n. 4o is laminated. At this time, the decorative layer 4o is preferably a translucent colored layer.

In the present invention, the thermal expansion layer 3 and the decorative layer 4 may be a composite layer 5 laminated in advance. Although it does not specifically limit as a formation method of the composite layer 5, For example, it can manufacture with the following method with the kind of decorative layer 4. FIG.
(1) When the decorative layer 4 is formed from a coating film, the coating film is formed on the thermal expansion layer 3 by a known coating method.
(2) When the decorative layer 4 is formed from a thermoplastic resin sheet, the decorative layer 4 is laminated on the thermal expansion layer 3 via a known adhesive.

The method of forming the laminate of the present invention is not particularly limited as long as the thermal expansion layer 3 is laminated on the base material 1 and the decorative layer 4 is further laminated on the thermal expansion layer 3. It can be formed by the following method.
(3) The adhesive material 2 is applied to the base material 1, and the thermal expansion layer 3 is laminated. Next, a method of laminating a decorative layer 4 on the thermal expansion layer 3.
(4) A method of applying the adhesive 2 to the substrate 1 and laminating the composite layer 5.
In the above (3), examples of the method of laminating the decorative layer 4 on the thermal expansion layer 3 include the above methods (1) and (2).

  Specific examples are shown below.

<Preparation of thermal expansion layer>
(Thermal expansion sheet 1)
A pressure kneader in which a mixture containing 100 parts by weight of vinyl acetate / ethylene copolymer resin, 60 parts by weight of melamine, 60 parts by weight of dipentaerythritol, 300 parts by weight of ammonium polyphosphate, and 75 parts by weight of titanium oxide is set at a temperature of 120 ° C. The kneaded material for the thermal expansion layer was prepared by kneading, and the kneaded material was laminated on the glass nonwoven fabric and processed into a sheet shape by a rolling roller to prepare a thermal expansion sheet (450 mm × 1200 mm) having a film thickness of 1.5 mm. The obtained thermal expansion sheet was embossed to produce a thermal expansion sheet 1 provided with a grain pattern. (The thermally expandable sheet 1 is used after being cut into an arbitrary size.)

<Makeup layer>
(Composition 1 for makeup layer)
30 parts by weight of acrylic resin, 69.3 parts of solvent, 0.5 weight of pigment (carbon black: petal: yellow iron oxide: titanium oxide = 1: 3: 3: 3) and 0.2 part of additive were mixed, A composition 1 for a decorative layer was obtained.
(Composition 2 for makeup layer)
30 parts by weight of acrylic resin, 69.3 parts of solvent, 0.5 weight of pigment (carbon black: petal: yellow iron oxide: titanium oxide = 3: 4: 4: 5) and 0.2 part of additive were mixed, A composition 2 for a decorative layer was obtained.
<Manufacture of laminates>
(Laminate 1)
An acrylic adhesive was applied to a base material (woody member: 450 mm × 450 mm × 15 mm) with a thickness of 50 μm, and a thermal expansion sheet 1 (450 mm × 450 mm) was laminated. Next, the composition 1 for the decorative layer was applied on the thermal expansion sheet 1 so that the dry film thickness was 0.5 mm, and dried at a temperature of 20 ° C. and a relative humidity of 65% to obtain a laminate 1. . The laminate 1 has a design that is excellent in wood texture.

(Laminate 2)
An acrylic adhesive was applied to a base material (woody member: 450 mm × 450 mm × 15 mm) with a thickness of 50 μm, and a thermal expansion sheet 1 (450 mm × 450 mm) was laminated. Next, the decorative layer composition 1 and the convex layer composition 2 are applied to the recesses of the thermal expansion sheet 1 so that the dry film thickness is 0.5 mm, respectively, and the temperature is 20 ° C. and the relative humidity is 65 % Was dried to obtain a laminate 2. The laminate 2 had a design that was excellent in wood texture.

(Heating test)
After injecting a flame with a gas burner for 10 minutes to the decorative layer side of the obtained laminate, each expansibility was confirmed.
Both the laminated body 1 and the laminated body 2 had excellent expansibility, and a uniform carbonized layer could be formed.

1. Substrate 1a. 1. Curved part 2. Adhesive material 3. Thermal expansion layer Cosmetic layers 4a-4o. Cosmetic layer5. Composite layer

Claims (6)

A laminate in which a thermal expansion layer is laminated on a base material, and a decorative layer is further laminated on the surface of the thermal expansion layer,
The thermal expansion layer contains a thermoplastic resin, a flame retardant, a foaming agent, a carbonizing agent and a filler, and has a concavo-convex pattern on the surface thereof,
A laminate in which the decorative layer is laminated continuously or discontinuously on the surface of the thermal expansion layer.   The laminate according to claim 1, wherein the thermal expansion layer is provided with a grainy uneven pattern.   The laminate according to claim 1 or 2, wherein the thermal expansion layer further contains a colorant.   The laminate according to any one of claims 1 to 3, wherein the decorative layer is a transparent or translucent colored layer. The laminate according to any one of claims 1 to 4, wherein the base material is a wooden member. The laminate according to any one of claims 1 to 5, wherein the substrate has a curved portion.

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