JPS59165649A - Composite heat-insulating board and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite heat insulating board that is used by being fitted between pillars, joists, roof edges, structural members or supporting frame members of buildings, and a method for manufacturing the same.

BACKGROUND ART Conventionally, the walls, ceilings, and floors of buildings such as rainbow wooden houses are filled with foam insulation boards to insulate the buildings. For example, for floors, polystyrene foam boards,
Heat insulating boards, such as rigid polyurethane foam boards, that are pre-sized to a certain standard are used and fixed by fitting them into the joists or between the main panels using fixtures. However, the intervals between the joists or joists to be inserted and filled are not always constant, and due to non-uniform dimensions, some gaps are created, resulting in a reduction in the heat insulation effect. In order to prevent this, cutting and filling another heat insulating plate f into the gap is a very time-consuming and time-consuming task, and results in loss of the heat insulating plate. Such defects are walls,
The same applies to insulation work for ceilings.

The present invention solves the drawbacks of the conventional insulation construction using foamed insulation boards, and allows filling between building structural materials such as pillars, joists, roof edges, etc. or supporting frames without any gaps, making insulation construction easier. The purpose of the present invention is to provide a composite heat insulating board and a method for manufacturing the same.

That is, the composite heat insulating board of the first invention consists of two rigid foam heat insulating sheets with a gap, each end of which is joined together with a strip made of flexible and compressible foamed plastic. It is characterized by being able to be bent at the joined strip material part.

Next, the present invention will be explained with reference to embodiments shown in the drawings. 1st
The figures show various examples of composite insulation boards according to the present invention.
(1-1) is a band-like material made of two rigid foam insulation plates with a gap of 1.1"k, and made of flexible foamed plastic that has compression recovery properties over the entire surface of each end 2.2'e. 3 are joined together.

Rigid foam insulation boards 1.1' include extruded polystyrene foam boards, beaded polystyrene foam boards, rigid polyurethane foam boards, vinyl chloride foam boards, high-density polyethylene foam boards, phenol foam boards, and foamed glass boards.

Further, the foamed plastic strip material 3 that is flexible and has compression recovery properties includes soft or semi-hard urethane foam, polyethylene foam, rubber foam, and the like. An adhesive is used to integrally join the strip 3 to the end 2.2' of the foam insulation plate 1.1', but thermal welding may also be used. Adhesives include urethane adhesives, epoxy adhesives, vinyl acetate-ethylene copolymers, polyvinyl acetate, polyvinyl chloride resins, neozolene, synthetic rubbers such as nitrile rubber, and resins such as polyacrylic esters. There are water-based and solvent-based adhesives.

Preferably, the self-adhesive properties of foam-in-place foams are utilized. i.e. foamed-in-place polyurethane foam;
Phenol foam, Yu IJ 7 foam, and epoxy foam are used as adhesives. For example, Nisshinbo Co., Ltd.
On-site foaming polyurethane (product name Air Light Foam 7)
When four-step foaming or non-floss foaming (foam discharge - straddle liquid discharge) is used, the foam adhesive penetrates into the air bubbles of both the foam insulation board 1.1' and the strip material 4 and hardens due to the foaming pressure, forming a foam adhesive. Niji using a non-foaming urethane adhesive also has a great adhesion effect because it forms an adhesive layer.

Note that the strip material 3 may be formed of a soft foamed-in-place foam such as polyurethane foamed-in-place. In this case, the strip material 3 can be joined to the foam heat insulating board 1.1' without using an adhesive, as will be described in detail later in the manufacturing method.

Various types of polyurethane foam can be used, such as hard, semi-hard, and soft.

Figure 1 (1-2) shows the one shown in (1-1) with the same type of strip material 3' additionally joined to the end.
-3) is a product in which two foamed heat insulating boards are joined together at the ends of the strips 3 and 3' in the shape of a cross. foam insulation board 1.1'
An example is shown in which a gap 5 of a constant width is provided at the end of the two, which are placed next to each other, and are integrally joined with a strip material 4 across the gap.

FIG. 2 is a cross-sectional view of another embodiment of the composite heat insulating board shown in FIG.

(2-1) is the one shown in FIG.
2-2) is obtained by adding a strip 4' to the structure shown in FIG. 1 (1-4) and integrally joining both ends thereof.

(2-3) is a structure in which the foam insulation board 1.1' with a constant width gap 5 as shown in (1-4) is joined together using a strip material 6 like a paving board. , (2-4) are 7t strips joined together as a sash.

In addition, the cross-sectional view shown in Fig. 3 is a rigid foam heat insulating board 1.1' joined together with different widths.
3-1) has a width ratio of 2:1, (3-2) has a width ratio of 5
:1 and joined together with a strip material 3. In this way, the width of the foam insulation board 1.1' may be determined as appropriate and the foam insulation board 1.1' may be joined together with a strip material.

Adhesives may be used to join the foamed plastic strips 4.4', 6.7 together to the rigid foam insulation board 1.1', but foamed-in-place foam may also be used.

The composite heat insulating board according to the present invention can have a certain size depending on the place of use. For example, when using the floor as shown in Figure 1 (1-1), 980 pieces x 275 pieces x 20~2
The width of the strip material 3 is 50 to 30%. However, it is not limited to this size.

In order to construct the composite heat insulating board according to the present invention, the distance between the structural members of the building such as columns, joists, and roof verges, and the support frames must be wide in the case of a planar structure. By bending the strip material and inserting it between the support frames and pressing the bulge to make it flat, the strip material portion is compressed and can be tightly packed into the support frame.

It is preferable to set the dimensions in advance so that the width of the strip material is compressed by about 60 scratches.

Note that it is normal to set a distance of about 5 to 30 m+ for the distance @5.

Next, a method for manufacturing a composite heat insulating board according to the second invention will be described.

As shown in FIG.
A frame 13.13' is placed on both sides of the block 11.11', and a stock solution for in-situ foaming of flexible polyurethane is poured into the groove 14 formed between the block 11.11' and both frames 13.13'.

After foaming and solidification, except for the frames 13.13"e on both sides, the composite heat insulating block material was made with both sides of the block integrally joined with strips made of foamed polyurethane, which is flexible and has compression recovery properties.
By slicing (cutting) a flat plate with a predetermined thickness of, for example, 20 to 25 cm using a hot wire or a known band saw,
The composite heat insulating board of the present invention as shown in -1) can be manufactured.

The stock solution for on-site foaming of soft urethane contains polyols, polyisocyanates, blowing agents, etc., and is discharged into a non-frosted foaming machine in the form of a rainbow liquid, or dichlorodifluoromethane is mixed into the stock solution and discharged into a cross foaming machine in the form of multiple foams. .

A film of polyethylene, polypropylene, polyhynylidene chloride or the like is used as a release film on the table 12 and inside the frames 13 and 13'.

Further, the rigid insulating material blocks 11, 11' may be made in advance with a desired thickness and laminated in large numbers, or may be laminated in a number of integral multiples of that thickness. .

The composite insulation board according to the present invention is a foam insulation board that is integrally joined with a strip made of flexible polyurethane foam that has compression recovery properties. It can be inserted and packed tightly between parts such as
Not only is it easy to install, but it also has excellent functionality as a heat insulating material.

Next, since the method for manufacturing a composite heat insulating board according to the present invention can be mechanized, it is suitable for mass production, and has the advantage that not only productivity is significantly improved, but also cutting loss does not occur.

In addition, the composite insulation board obtained by this manufacturing method does not use adhesive, and when foaming, the soft polyurethane foam directly bites into the oil part of the insulation foam board 11, 11' due to the foaming pressure, and has an anchor effect that hardens. Since it is an adhesive, stable adhesion can be obtained over a long period of time, and the joints of the strips are strong and have a beautiful finish.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an example of a composite heat insulating board according to the present invention, FIGS. 2 and 3 are sectional views showing other embodiments, and FIG. 4 is a composite shown in FIG. 1 (1-1). It is a perspective view for explaining the manufacturing method of a heat insulation board. 1.1'...Rigid foam insulation board, 11.11'.
... Rigid foam insulation block, 2.2'... End, 3.3', 4.4', 6.7... Strip material, 5...
・Gap, 12...stand, 13.13'...frame, 14・
... Mizobe's agent Masao Miyake (1 other person) (11)

Claims (2)

[Claims] (1) A composite insulation board made by joining two rigid foam insulation boards with a gap together at each end with a strip made of flexible, compression-recoverable foamed plastic. (2) Two rigid foam insulation blocks are placed on a flat surface with a predetermined gap, a frame is installed on both sides of the block, and a flexible foam is placed in the groove formed between the blocks and both frames. The foamed polyurethane is made of two rigid foamed insulation boards that are flexible and have compression recovery properties, by injecting the raw solution for polyurethane foaming, removing the side frame after foaming assimilation, and then cutting into flat plates of the required thickness. A method for manufacturing a composite heat insulating board formed by integrally joining together strips of material.