JPH0436909Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a thermoplastic resin foam for insulation construction.

[Problems to be solved by conventional techniques and ideas]

Conventionally, thermoplastic synthetic resin foams such as polystyrene resin have been used for insulation construction of houses, buildings, etc., and these are cut into rectangular shapes with a certain area, such as 0.91 m long and 0.91 m wide. are used. These foams are installed by attaching them one by one during insulation construction, which causes a lot of time loss and has many problems in terms of construction cost and workability.

Furthermore, since the foams are attached one by one, misalignment occurs between the foams, and this misalignment causes gaps between the foams, resulting in a reduction in the heat insulation effect. In order to eliminate such problems, for example, filling material is applied between the foam bodies, but this also causes problems such as high construction costs and poor workability.

In order to solve this problem, the present applicant has already proposed a thermoplastic synthetic resin foam for insulation construction (Japanese Patent Application No. 60-252300, Japanese Patent Application Laid-Open No. 62-112847). Such a foam has a structure in which a flat thermoplastic resin foam having a plurality of hinge parts alternately provided on the upper and lower surfaces is alternately folded at each hinge part.

The thermoplastic resin foam for thermal insulation proposed by the present applicant is an excellent foam with good workability.
In addition, since each foam piece is large, there are extremely few seams, and as a result, there are few gaps between foam pieces, which can prevent a decrease in the heat insulating effect as much as possible.

However, although it is possible to prevent the deterioration of the heat insulating effect as much as possible for the above-mentioned reasons, it is also true that heat is released in the gaps created between the foams, and the deterioration of the heat insulating effect in this respect is undeniable.

Further, the above-mentioned foam is usually constructed on the outside of columns in walls and on the roofing board in roofs. In particular, high waterproof performance is required on the outside of pillars and on the roof boards, so if foam boards are installed in these areas where gaps are likely to occur at the joints, a waterproof sheet should be placed on the top of the foam after installation. It had to be pasted, which inevitably resulted in a decrease in workability.

The object of the present invention is to provide a thermoplastic resin foam for heat insulation construction that solves the above problems and has good workability, excellent heat insulation performance, and high waterproof performance.

[Means for solving problems]

In order to solve the above-mentioned problems, the thermoplastic resin foam of the present invention for insulation construction has a plurality of layers on the upper and lower surfaces of a laminate consisting of a flat thermoplastic resin foam and film-like materials provided on both sides of the foam. The thermoplastic resin foam for insulation construction is provided with alternating hinge parts, and at least one of the film-like materials provided on the foam has one end in the width direction of the foam protruding from the foam. It has the structure that

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In Fig. 1, 1 is the thermoplastic resin foam of the present invention for insulation construction (hereinafter simply referred to as the foam of the present invention).
This embodiment shows a foamed body 1 consisting of a flat thermoplastic resin foam (hereinafter simply referred to as flat foamed body) 2 and film-like materials 3, 3 provided on both sides of the foamed body 2. It has a structure in which a plurality of hinge parts 5, 5, . . . are formed on a laminate 4 consisting of.

As shown in FIG. 3, the laminate 4 is formed by providing film-like materials 3a and 3b on both sides of a flat foam 2, and the upper surface 6 of the laminate 4 has a cross section as shown in FIG. A W-shaped hinge portion 5 as shown in FIG. are alternately formed on the upper surface 6 and lower surface 7 of the laminate 4.

The film-like material 3a provided on the upper surface 6 of the flat foam 2 is located at one end 8a in the width direction of the flat foam 2.
is formed to protrude from the foam body 2, and the lower surface 7
One end 8b of the film-like material 3b in the width direction of the flat foam is formed to protrude from the side opposite to the side from which the one end 8a of the film-like material 3a on the upper surface is protruded.

The end portion of the laminate 4 configured as described above is folded in the direction of arrow A at the hinge portion 5a provided on the upper surface 6 of the laminate 4, and then folded in the direction of arrow A at the hinge portion 5b provided on the lower surface 7. Fold in direction B, then alternately fold in sequence (as shown in Figure 1)
I can do it.

In addition, the shape of the hinge portions formed on the upper and lower surfaces of the laminate is W-shaped in cross section as shown in Fig. 2A, and in the shape of a groove formed along a direction perpendicular to the longitudinal direction of the laminate. It is not limited to this, and various shapes are possible. For example, the cross section shown in FIG.
Various shapes are possible, such as a mold groove or a groove with a square cross section as shown in Figure 6A along the direction perpendicular to the longitudinal direction of the laminate. Any shape is possible as long as it can be easily folded and does not cause damage such as cracks to the laminate after folding.

Incidentally, if the shape of the hinge part of the laminate is as shown in FIG. 2A, FIG. 5B, and FIG. 6A, the folded shape will be as shown in FIG. The shape will be as shown in Figure B.

In the present invention, thermoplastic resins are used as the resin forming the flat foam, such as polystyrene, poly-P-methylstyrene, impact-resistant polystyrene, styrene-maleic anhydride copolymer, and styrene. - Polystyrene resins, polypropylene, polyethylene, polybutene, ethylene-propylene copolymers, ethylene-butene copolymers whose base resin is acrylonitrile copolymer, styrene-butadiene-acrylonitrile copolymer, or a mixture of two or more of these, etc. Polyolefin resins such as ethylene-vinyl acetate copolymer, ethylene-acrylic acid copolymer, ethylene-acrylate copolymer, hard and flexible vinyl chloride resin, vinyl chloride-vinyl acetate copolymer, acrylic acid or Examples include methacrylic acid or ester resins thereof, and among them, polystyrene resins are most preferred in terms of heat insulation performance and low cost.

In addition, in the present invention, the above-mentioned film-like material includes plastic films made of polystyrene, polypropylene, various polyethylenes, polyesters, polyamides, vinyl chloride, etc., films made of these films coated with metal vapor deposition, non-woven fabrics, woven fabrics,
Examples include paper.

In the present invention, the size of the foam of the present invention can be selected from various sizes depending on the object to be insulated, but extremely large ones are inconvenient to handle during construction, and those that are too small However, it is not possible to achieve the objectives of the present invention of improving workability and preventing deterioration of heat insulation properties. In addition, in the present invention, when considering the above reasons, the length in the longitudinal direction of the laminate is 0.9 to 36 m, the length in the width direction is 0.3 to 3 m, and the length between each hinge part is 0.3 to 1.8 m. is preferred. In addition, the thickness of the laminate is 0.1 to 5 cm for the flat foam, and 5 to 1000 μm for the film.
It is preferable that

In the present invention, the expansion ratio is 2 to 80 times, preferably 5 to 70 times, and the average cell diameter is preferably 0.05 to 2 mm. As mentioned above, the thickness of the flat foam is 0.1~
A thickness of 5 cm is preferable; if it is too thin, the heat insulating effect will be poor, and if it is too thick, there is a risk that folding of the laminate will be hindered.

Further, each end portion 8 of each film-like material 3a, 3b provided on the upper surface of the foam body 2 is formed in a protruding manner.
It is preferable that the protrusion width d of a and 8b is about 10 to 100 mm.

Various methods can be used to form the foam of the present invention structured as described above. A laminate is formed by stacking the laminate so that they protrude alternately on the lower surface, and a hinge portion is formed at a predetermined location of the laminate by pressing or hot pressing using a pressing jig, and then cut to a predetermined length. A laminate having a hinge portion is obtained. The resulting laminate can be folded alternately at each hinge provided on the laminate.

Further, the hinge portion can also be formed at a predetermined location of the flat foam before laminating the film-like material by cutting with a knife, heat-melting, or pressing with a pressing jig or the like.

When using the foam of the present invention constructed as described above, for example, as shown in FIG. After fixing, the hinge part 5
Insulation can be easily installed by stretching and fixing. At this time, the connection point 10 between the foam bodies 1A and 1B is a protruding end 8a, as shown in FIG.
Since each of the foams 1A and 1B is covered with 8b, the release of heat from this portion can be suppressed, and a good heat insulation effect can be exhibited. In this case, the protruding ends 8a, 8b and each of the foam bodies 1A, 1B may be bonded using an adhesive or the like. This adhesive is
It is preferable that the film-like material itself has a low melting point and is of a type that can be melted and bonded by heating the surface (using an iron or the like).

It is also possible to fix the ends of the extended foam of the present invention at the upper part of the area to be insulated, and then gradually move downward and fix the foam.

So far, we have described the case in which the film-like materials provided on the upper and lower surfaces of the foam are formed so as to protrude alternately in the width direction of the foam. It doesn't matter if it is. In particular, when the protrusion is formed on only one side, it is preferable to construct the protrusion so that the protrusion is on the outer surface. In this case, it is possible to effectively block rainwater and the like from entering through gaps in the outer wall.

When performing insulation construction using the foam of the present invention, the foam of the present invention requires fewer alignments because each foam is large, and workability is significantly improved compared to conventional foams of this type. . In addition, there are extremely few seams between the foams, and at least one of the film-like materials on the top and bottom surfaces of the foams is formed to protrude in the width direction of the foams, so it is possible to prevent the insulation effect from deteriorating as much as possible. can. Moreover, it has the advantage of being able to provide insulation and waterproofing at the same time when installed on the outside of pillars or on roof boards.

Furthermore, when constructing a wooden house, etc., if the distance between the hinge parts is configured to be the same length as the distance between the pillars, each hinge part can be fixed, and the fixing location can be easily selected.

In addition, since the film-like material is provided on both sides of the flat foam, the strength of the foam itself is improved, and the strength of the hinge part is also increased, so that even if the hinge part is repeatedly bent, the hinge part will not be damaged. No defects such as cracks will occur.

〔Effect of the invention〕

As explained above, the thermoplastic resin foam for insulation construction of the present invention has a plurality of hinges on the upper and lower surfaces of a laminate consisting of a flat thermoplastic resin foam and a film-like material provided on both sides of the foam. A thermoplastic resin foam for insulation construction comprising alternating sections,
At least one of the film-like materials provided on the upper and lower surfaces of the foam has a structure in which one end in the width direction of the foam protrudes from the foam, so it has good workability when used for insulation construction. and
In addition, it has various effects such as excellent heat insulation performance and waterproof performance, high strength, and no problems such as cracks in the hinge portion even after repeated bending.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is a perspective view showing an embodiment of the thermoplastic resin foam for insulation construction of the present invention, and Figs. 2, 5, and 6 show the hinge part. 3 is a longitudinal sectional view showing the laminate, FIG. 4 is a longitudinal sectional view taken along the line shown in FIG. 3, and FIG. 7 is a state in which the foam of the present invention is used in construction FIG. 8 is a cross-sectional view of a main part showing a connecting part between foams of the present invention, and FIG. 9 is a cross-sectional view of a main part showing a connecting part between foams of another embodiment of the present invention. . 1, 1 _A , 1 _B ... Thermoplastic resin foam for insulation construction, 2 ... Flat thermoplastic resin foam, 3, 3
a, 3b...Film-like material, 4...Laminated body, 5,
5a, 5b...Hinge part, 6...Foam top surface, 7
...lower surface of the foam, 8a, 8b...one end of the film-like material.

Claims (1)

[Scope of utility model registration request] A thermoplastic resin foam for heat insulation construction, which is formed by alternately providing a plurality of hinge parts on the upper and lower surfaces of a laminate consisting of a flat thermoplastic resin foam and a film-like material provided on both sides of the foam. A thermoplastic resin foam for insulation construction, characterized in that at least one of the film-like materials provided on the foam has one end in the width direction of the foam protruding from the foam.