JPS6231132B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises integrally lining the back side of a front base material 1 made of high density plastic foam with a heat insulating material 2 made of low density plastic foam, and forming a female cone 3 at one end of the front base material 1. The present invention also relates to a ceiling material characterized in that a male seed 4 is formed on the other end of the surface base material 1, and its purpose is to provide a lightweight ceiling material with excellent heat insulation effect.

Conventionally, wood or gypsum board has been used as ceiling material, but such ceiling materials are heavy and do not have a heat insulating effect, so they require labor to lathe and have to be provided with a separate heat insulating material. have. A heat insulating material is known in which a low-density plastic foam layer is integrally formed on a non-foamed plastic base material, but such a heat insulating material is also heavy and unsuitable for use as a ceiling material. As a material that is simply lightweight and has a heat insulating effect, it is possible to consider a material made only of low-density plastic foam, but it does not have sufficient strength as a ceiling material.

The present invention overcomes these drawbacks.

The present invention will be explained in detail below.

Examples of the high-density plastic foam used as the surface substrate include high-density foams of polyurethane, polystyrene, phenolic resins, and ordinary rigid polyvinyl chloride foams. The preferred density of these high density plastic foams is
Polyurethane: 0.05g/ ^cm3 or more, polystyrene:
The amount of phenolic resin is 0.06 g/cm ³ or more, and the amount of phenolic resin is 0.16 g/cm ³ or more. High-density plastic foam has sufficient strength as a ceiling material and also has a heat insulating effect.

As the heat insulating material that is integrally lined on the back side of the surface base material, low-density polyurethane foam, low-density polystyrene foam, low-density plastic foam such as ordinary epoxy foam, glass wool, vermiculite, etc. are used. In particular, it is preferable to use low-density plastic foam, which is light in weight. For materials that do not have self-shape retention properties, such as glass wool, those that are bound in advance with a binder are used.

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in the drawings.

In the example shown in FIG. 1, the surface base material 1 is made of a plate-like body of high-density plastic foam, and a joint portion consisting of a female seed 3 and a male seed 4 is formed at both ends thereof. A pattern is directly printed on the surface 5 of the surface base material 1, or a pattern-printed paper or sliced natural wood is laminated to form a decorative surface. A heat insulating material 2 made of low-density plastic foam is integrally lined with the back side of the front base material 1. To integrally line the back side of the front base material 1 with the heat insulating material 2, the heat insulating material 2 may be formed separately and then bonded to the front base material 2, or the heat insulating material 2 may be formed separately and then bonded to the front base material 2.
Foam molding may be carried out by spraying or coating a stock solution for low density plastic foam on the back side of the material.

In the present invention, since the back side of the high-density plastic foam surface base material is integrally lined with a low-density plastic foam insulation material, it has an excellent heat insulation effect, is lightweight, and has the mechanical strength required as a ceiling material. It has the following. In particular, since high-density plastic foam is used for the surface base material, it is light in weight and has sufficient mechanical strength, and the surface base material itself also has a heat insulating effect. In addition, since the surface base material and the insulation material are integrated, the insulation material lathe can be completed at the same time as the ceiling material construction. Furthermore, high-density plastic foam is used as the surface base material, but since the surface of high-density plastic foam is smooth to some extent, it can be used as is without any cosmetic processing, or it can be used to improve the surface by pasting decorative paper on the surface. Cosmetic processing is also easy. Furthermore, although the surface of the surface base material is smooth to some extent, it is rougher than the surface of non-foamable plastic, so that the adhesive strength with the decorative paper is also increased. In addition, a female fruit was formed on one end of the surface base material of the high-density plastic foam, and a male fruit was formed on the other end, so when connecting the ceiling material, the female fruit and the male fruit were fitted together. Not only can they be easily connected, but because they are formed on the surface base material of high-density plastic foam, they are strong and have good dimensional accuracy, ensuring a reliable connection.

Example 1 Density with pre-laminated printed paper on the surface
The joints shown in Figure 1 are formed on both ends of a 15 mm thick polyurethane foam board with a weight of 0.10 g/cm ³ , and a 10 mm thick low density polyurethane foam layer is formed by spraying highly foamable polyurethane on the back side. was formed. As a result, the thermal resistance is 1.70m ² h
A light ceiling material with sufficient strength of °C/Kcal was obtained.

Example 2 Density of laminating natural cedar slices on the surface
A polystyrene foam board having a thickness of 0.09 g/cm ³ and a thickness of 10 mm was provided with joints shown in FIG. 2 at both ends, and a polystyrene board having a thickness of 20 mm and a density of 0.03 g/cm ³ was attached to the back side with an adhesive. As a result, a light ceiling material with sufficient strength and a thermal resistance of 1.82 m ² h°C/Kcal was obtained.

Example 3 A high-pressure polyvinyl chloride foam with a thickness of 20 mm and a density of 0.05 g/m ² with a printed polyvinyl chloride sheet adhered to its surface was provided with joints as shown in Figure 2 at both ends, and foamed by spraying on the back side. Epoxy resin was sprayed to form a 6 mm thick low density foam layer. As a result, a light ceiling material with sufficient strength and a thermal resistance of 1.55 m ² h°C/Kcal was obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an example of the present invention, where 1 is a surface base material and 2 is a heat insulating material.

Claims (1)

[Claims] 1. The back side of a high-density plastic foam surface base material is integrally lined with a low-density plastic foam heat insulating material, and a female fruit is formed at one end of the surface base material, and a male fruit is formed at the other end. ceiling material.