JPS6126042Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to laminates for shutters, etc., and uses a combination of a surface material made of a metal plate and a foam made of an internal heat insulating material to create a laminate that does not warp due to heat effects. , we are trying to obtain something with high heat insulation effect.

Conventionally, when using a metal surface material made of aluminum or the like as a laminated board for shutters, etc., it is necessary to interpose an insulation board between the two surface materials for the purpose of insulation. The heat insulating material formed on the board is difficult to adhere to the metal surface material, and the bonding work is troublesome, so recently it has been proposed to inject foamed polyurethane between the surface materials. However, in the case of foamed polyurethane, the skin layer is bonded to the surface material without any gaps, and large voids are likely to be formed due to air pockets during filling, and due to its brittleness after curing, it may be partially damaged by vibrations when opening and closing rain shutters, etc. It is easy for the metal plate to chip and fall off, creating a large void in that area, which reduces the insulation effect and weakens it.In addition, due to the above-mentioned continuous bonding, the surface material of the metal plate becomes extremely warped. It had the drawback that it was easy to open and close. In addition, in the case of the foamed polyurethane mentioned above,
As for the degree of bonding itself in the seamlessly bonded portion, since the surface material was made of metal, a sufficient degree of bonding could not be obtained.

Therefore, in this invention, we are trying to propose a laminated plate for shutters etc. that can eliminate the drawbacks of the conventional products mentioned above.As for its structure, the styrene-maleic anhydride copolymer is placed between two surface materials made of metal plates. A large number of foamed particles made of coalesced or blended with other thermoplastic resins are interposed, and the foamed particles are expanded by steam heating to form a foamed body that is thermally fused to each other. This is a laminate in which foamed particles are bonded to a surface material at the same time as the foam particles are thermally fused, and a non-bonded member is placed between the surface material and the foam to prevent the foam from being partially bonded to the bonded surface of the surface material. It is characterized by being partially interposed.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

1 shows the entire laminate used for shutters, etc., 10 and 10' are two surface materials made of metal plates such as aluminum plates of the laminate 1, and 20 is a joint between the surface materials 10 and 10'. The foam 20 is made up of 2 maleic anhydride.
-25% by weight, styrene-maleic anhydride copolymer composed of 98-75% by weight of styrene, or a styrene-maleic anhydride copolymer containing 2-25% by weight of maleic anhydride as above and other It is made of a large number of foamed particles made of a blended product with a thermoplastic resin (eg, polybutadiene, etc.) and simultaneously bonded to the surface materials 10, 10'.

That is, the foamed body 20 is bonded to the surface materials 10, 10' by interposing a large number of the foamed particles between the two surface materials 10, 10', and expanding the foamed particles by steam heating so that they mutually interact. A heat-sealed foam is formed, and the foamed particles are simultaneously heat-sealed and bonded to the surface materials 10, 10'. B is a non-bonding member made of tape, paper strip, plate, or other appropriate material, and includes the surface material 10,
The foam 20 is partially interposed between the surface materials 10, 10' and the foam 20 so that the foam 20 is not partially bonded to the joint surface of the surface material 10'.

Regarding the manufacture of the laminate 1 having the above configuration,
In the case shown in FIG. 3, one surface material 10 is placed on a mold 30 having a steam chamber 31 with the non-bonded member B attached thereto, and the surrounding area is framed in an enclosing manner with a steam chamber 41. The above styrene is surrounded by a mold 40 and then placed on the surface material 10 made of a metal plate.
A large number of foamed particles a made of a maleic anhydride copolymer or a blend product of maleic anhydride copolymer and other thermoplastic resin are laid down, and the other surface material 10 is attached to the non-bonded member B on the foamed particles a. The mold 50 having a steam chamber 51 is placed thereon, and the mold 50 having a steam chamber 51 is placed on the mold 50 and the mold is clamped.The foamed particles a are inserted between the surface materials 10 and 10', and the foamed particles a are injected from the steam injection hole 42 of the mold 40. Direct steam heating and mold 30,5
Metal surface material 1 from the steam chambers 31 and 51 of 0
The foamed particles a are heated and expanded by indirect heating through 0 and 10' to form a foamed body 20 which is heat-sealed to each other, and the foamed body 20 is attached to the surface material 1.
0, 10' and non-joining member B.
In this section, the laminate 1 in which the foam 20 and the surface materials 10, 10' are not bonded is used.

In addition, in the case shown in FIG. 4, the surface material 10, 10' is made up of two metal plates to which the non-bonding member B has been attached in advance, and an appropriate spacing suitable for the thickness of the foam is maintained between them. After that, the foamed particles a are filled into the above-mentioned space from the filling port 43, and after filling, the foamed particles a are heated and expanded in the same way as in the previous manufacturing method. The foamed bodies 20 are thermally fused to each other, the foamed bodies 20 are simultaneously joined to the surface materials 10 and 10', and non-bonded parts are formed in the non-bonded member B.

In addition, the laminate shape according to this invention includes a surface material 10 made of aluminum or other appropriate metal,
In addition to the case where the surface material 10' is flat, one or both of the surface materials 10, 10' may have a corrugated shape (as shown in FIG. (Illustrated in the figure) can be implemented in various ways. The overall shape is 90 x 180 cm for shutters, etc., and the thickness of the foam 20 is about 2 cm, but depending on the purpose, it is not limited to a rectangular shape and may have other shapes, and various sizes can be used. In the case of a rain door, a frame material such as aluminum sash may be attached to the laminate with screws or other means to complete the rain door.

Furthermore, the laminate may have a metal profile 60 (peripheral side material) such as aluminum sash attached to the periphery of the laminate at the same time as the surface material and heat fusion of the foam. The same foamed particles as described above are interposed therein, and the periphery is surrounded by a metal molded material 60 with a steam injection hole 62, and the outer periphery of the metal molded material 60 is surrounded by a metal molded material 60 to form a steam chamber 61. A mold 70 framed by is set,
The foamed particles are foamed by direct steam heating from the steam injection hole 62 of the metal mold 60 and indirect heating from the steam chambers 31, 51 of the molds 30, 50 through the surface materials 10, 10'. The particles are heated and expanded to form a foam 20, and the surface materials 10 and 1 are
The foam body 20 may be bonded to the metal mold member 60 and the metal mold member 60 at the same time.

In addition, regarding the filling port 43 for filling the foamed particles a, there are cases where the filling port 43 is removed after filling, and cases where the filling port 43 is embedded within the foam 20.
Particularly in the latter case, it is suitable for something that is connected to the metal mold member 60, and the shape illustrated in FIG. 9 can strengthen the sense of unity with the foam body 20.

Furthermore, a steam chamber 8 is provided inside between the surface materials 10 and 10'.
1 and a metal tube 80 with a steam injection hole 82 is interposed to help spread the steam heating evenly over the foamed particles a and to increase the strength of the laminate (Fig. 7). ,
(See Figures 9, 11 and 12).

Further, the metal shapes 60 are wrapped around only one pair of opposing sides (see FIG. 10), and after simultaneous bonding with the foam 20, the metal shapes 60 on the sides of the other pair are fixed with screws, glued, etc. They may be joined by other means.

The laminated board of this invention with the above configuration is
A foamed body 20 formed by heating and expanding foamed particles interposed between two metal plates 10 and 10' is made of a styrene product-maleic anhydride copolymer or this and other thermoplastic resin. The surface material 10, 10' is made by heating and expanding (secondary foaming) a large number of foam particles made of a blend of
Even after the secondary foaming, there is a small gap between the parts joined to each other, and the foam 20 and the surface materials 10, 10' are not joined to each other in the part where the non-joint member B is interposed. When the plate is used as a shutter etc., the surface material made of metal plate 10,1
The expansion due to the thermal influence of 0' can be released between the surface material part and the non-bonded part in the gap part, and the effect of preventing the entire warpage caused by the difference in the coefficient of thermal expansion with the foam 20 is extremely large. . In addition, in each bonding part, the foamed particles constituting the foamed body 20 contain polar maleic acid, and have very high bondability to the surface materials 10, 10' made of metal plates, and the adhesive Regardless of the use, the foam 20 simultaneously thermally fuses the foam particles to each other and the surface material 1.
Since it is bonded to the surface material 10, 10', it is bonded even more strongly at the bonded part, and the surface material 10, 10'
This eliminates the drawbacks of conventional products, such as peeling off from the roof or chipping in parts due to vibrations caused by opening and closing during use as a rain door.

Furthermore, foams made of styrene-maleic anhydride copolymers or blends of this with other thermoplastic resins are also highly heat-resistant, and when the laminates are used as shutters, they can be used in the summer or during heating, etc. Even against heat transfer, it does not cause thermal deformation and exhibits a good heat insulating effect. Therefore, the laminated board for shutters has excellent heat retention properties without escaping the indoor cooling effect even in midsummer, and without escaping the indoor heating effect even in midwinter.

In addition, this invention also includes a surface material 10 made of a metal plate,
In contrast to 10', the foam 20 is constructed without the use of adhesives, so it is easy to manufacture, is inexpensive, has high heat resistance, has a high degree of bonding at each joint, and is laminated without warping due to heat effects. In addition to the above-mentioned shutters, the board is widely used for various purposes such as ceiling and wall materials for unit baths, table and home Gotatsu face plates, signboards, advertising boards, blackboards, doors, partitions, etc., and is of excellent practical use. It will be possible to demonstrate the desired effect.

[Brief explanation of the drawing]

The figure illustrates an embodiment of this invention, and the first
The figure is a perspective view, FIG. 2 is a partially enlarged sectional view, FIGS. 3 and 4 are sectional views showing several examples in the process of manufacture, FIGS. 5 and 6 are sectional views of modified examples, and FIG. 7 is a sectional view of a modified example. The figure is a partially cutaway perspective view showing a modified example with a metal profile, Figure 8 is a cross-sectional view of the previous figure showing a state in the middle of manufacturing, Figure 9 is a partial cross-sectional view of a modified example, and Figures 10 to 12. FIG. 3 is a perspective view of a further modified example. 1... Entire laminate, 10, 10'... Two surface materials made of metal plates, 20... Foam, B...
Non-joined member, 60...Metal shape material, 30, 50, 7
0...Type, 80...Metal tube.

Claims (1)

[Claims for Utility Model Registration] 1. A large number of foamed particles made of a styrene-maleic anhydride copolymer or a blend of this and other thermoplastic resins are interposed between two surface materials made of metal plates. , a laminate in which the foamed particles are expanded by steam heating to form a foamed body that is thermally fused to each other, and the foamed body is bonded to a surface material at the same time as the foamed particles are thermally fused; A laminate for a rain door or the like, characterized in that a non-bonding member is partially interposed between the surface material and the foam so that the foam does not partially bond to the bonding surface of the materials. 2. The styrene-maleic anhydride copolymer forming the foam is composed of 2 to 25% by weight of maleic anhydride and 98 to 75% by weight of styrene. Laminated boards for shutters, etc. 3. A shutter etc. according to claim 1 of the above utility model registration claim, which is a blend product of styrene-maleic anhydride copolymer and other thermoplastic resin, containing 2 to 25% by weight of maleic anhydride. laminate board. 4. A laminate for a rain door or the like as set forth in claim 1 of the above utility model registration claim, wherein at least one of the two surface materials made of metal plates is made of a corrugated plate.