JPH01225521A - Manufacture of cushioning material and laminate - Google Patents

Abstract

PURPOSE:To manufacture laminates of good molding properties with small plate thickness deviation by using a specific cushioning material when a laminated material constituted of a resin impregnated base material and metallic foils is laminate molded by using metallic plates, a cushioning material and a carrier plate. CONSTITUTION:A plurality of laminates constituted of resin impregnated base and metallic foils are inserted between metal plates, and a carrier plate is provided through a cushioning material outside, inserted between heat platens, heated and pressurized to form laminates. At that time, heat conductive properties become better by means of metallic foils and deformation of the cushioning material is eliminated by disposing a heat curable resin layer containing thermoplastic resin between the two metallic foils as the cushioning material and using the same, and also a thermoplastic resin component in the resin layer is softened by heating and pressurizing, and can fully act as the cushioning material.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method of manufacturing an electrical laminate used in electrical equipment, computing equipment, communication equipment, etc., and a cushioning material used therein.

[Conventional technology]

Conventionally, electrical laminates are made by stacking 1 to 15 sets of laminates consisting of a resin-impregnated base material and metal foil sandwiched between metal plates, and placing a carrier plate on the outside with a cushion material interposed between them. Paper, cloth, rubber plate, etc. are used as the carbon material, which is obtained by lamination molding under heat and pressure.

[Problem that the invention seeks to solve]

As described in the conventional technology, paper, cloth, rubber plates, etc., have poor thermal conductivity and cause concave deformation in the carrier plate, and may become permanent after one use. There is a problem in that distortion occurs and the shoe resistance deteriorates significantly from the second time onwards, and the rubber board material has poor thermal conductivity, and the hanging drop material itself deforms. There was a problem in that the thickness deviation of the laminate was large due to the large thickness. The present invention has been made in view of the above-mentioned problems in the conventional technology, and its purpose is to provide a method for manufacturing a laminate with good thickness deviation and formability, and a resin thin material used therein. It's about doing.

[Means for solving problems]

The present invention is characterized in that a thermosetting resin layer containing a thermoplastic resin is integrated between two metal foils.
A laminate consisting of a resin-impregnated base material, a metal foil, and a metal plate, Ku7V! When performing laminated molding using lumber and carrier plates, a cushioning material made by disposing and integrating a thermosetting resin layer containing a thermoplastic resin between two sheets of metal foil is used as a binder material. This method of manufacturing laminates is characterized by the fact that the metal foil has good thermal conductivity during laminate molding, there is no deformation of the Crasilan material, and the thermoplastic resin component in the resin layer is removed by heating and pressing during laminate molding. This material effectively acts as a softening seal material, and the present invention will be described in detail below.

As the metal foil used for the adhesive bonding material of the present invention, single, alloy, or composite products of copper, aluminum, iron, Nisokaru, zinc, etc. can be used, and the adhesive surface may be chemically treated and/or physically treated as necessary. Can be treated to improve adhesion. The thickness of the metal foil is not particularly limited, but it is preferably 0.018 to 0.1 nm in terms of durability and thermal conductivity. The thermosetting resin to be placed between the metal foils includes all types of thermosetting resins including phenolic resin, cresol resin, epoxy resin, unsaturated polyester resin, melamine resin, polyimide, etc. alone, modified products, and mixtures. However, it is preferable to use phenol resin, epoxy resin, unsaturated polyester resin, or polyimide resin, which have excellent heat resistance.
The above thermosetting resin must necessarily contain a thermoplastic resin such as polyamide, polyurethane, polyacrylic, acrylonitrile butadiene styrene monomer, styrene butadiene copolymer, acetal resin such as butyral resin, etc. . The iron content of these thermoplastic resins is not particularly limited, but is preferably 20 to 20% in the resin component.
It is preferable to have a width of 80 layers (hereinafter referred to as ``arashi ni tou''). In other words, if it is less than 20%, it is a cushion! This is because the deformability tends to increase when the elasticity decreases and exceeds 80 degrees. The resin layer can be provided in the form of a coating layer, a film layer, a sheet layer, a resin-impregnated paper, or a cloth. The thickness of the resin layer is 0.0
5-2. Off is preferable. The Crasilan material thus obtained may be used as a single sheet, or may be used in a stack of several sheets as desired.

In addition, a of the resin-impregnated base material used in the present invention (as fats, phenolic resin, cresol resin, Ebuki V stool fat, unsaturated polyester resin, melamine resin, polyimide, polybutadiene, polyamide, polyamideimide, polysulfone, polyphenylene sulfide) , polyphenylene oxide, polybutylene terephthalate, polyether ether ketone, fluorinated resin, etc. are used alone, modified or in mixtures, and if necessary, a solvent such as water, methyl alcohol, acetone, cyclohexanone, styrene, etc. is used to adjust the viscosity. The base material for the added material is woven fabric, non-woven fabric, Maputo or paper made of inorganic fibers such as glass and asbestos, organic synthetic fibers such as polyester, bo-11 amide, polyvinyl alcohol, and acrylic, and natural fibers such as cotton. These combination base materials etc.The four gold foils include copper, aluminum,
These are single, alloy, or composite products made of metal, nickel, zinc, etc., and the adhesive surface is chemically and/or naturally treated to provide a four-layer contact layer as necessary.

The metal plate may be made of iron, aluminum, steel, 29K, etc., with a thickness of 1 to 5 fins, or an alloy, or a metal plate, and a release layer may be provided on the surface if necessary. As the carrier plate, conventionally used carrier plates can be used as they are.

The present invention will be explained below based on examples.

Implementation rows 1 to 3 A resin face as shown in Table 1 was injected between two copper foils of thickness Q and 0711 m1 to a thickness of 0.5 fl.
A shoe sheen material was obtained by heating at 70° C. for 120 minutes.

Table 1 Note: Epoxy resin (manufactured by Shell Chemical Co., Ltd., product name Ebiko Wool) 100 was applied to a glass cloth with a thickness of Q and 2 ff.
Parts by weight (hereinafter referred to as parts), 4 parts of diandiamide,
An epoxy resin varnish consisting of 0.2 parts of benzyldimethylamine and 100 parts of methyloxytol was impregnated so that the amount of resin after drying became 50 strips, and the upper and lower surfaces of 7 resin-impregnated base materials obtained by drying were coated to a thickness of 50 parts. A stainless steel metal plate with a thickness of 2 mm is arranged between and on the outermost side of each set of laminated bodies 10 in which steel foil of 035jlff is arranged, and furthermore, the above-mentioned aluminum foil is placed on the outermost side. Three 5fl thick iron carrier plates were placed between each plate, and the molding pressure was 40K.
g/d, heated and pressure molded at 165℃ for 120 minutes.
A double-sided steel clad laminate with a thickness of 1.6 fl was obtained.

Comparative Example A paper sheet with a thickness of 1.6 mm was processed in the same manner as in the example except that 10 sheets of kraft paper with a thickness of 0.2H were stacked and used as the crepe material.
A double-sided steel clad laminate with a diameter of m was obtained.

The plate thickness deviation and formability of the laminates of Examples 1 to 3 and Comparative Example are as shown in Table @2.

〔Effect of the invention〕

The present invention is constructed as described above. The comb material having the structure described in claim 1 has the effect of improving repeatability.

Furthermore, in the method for manufacturing a laminate having the configuration described in claim 2, the thickness deviation of the laminate is reduced;
It has the effect of improving moldability.

Claims (2)

[Claims] (1) A cushioning material characterized by being formed by integrally disposing a thermosetting resin layer containing a thermoplastic resin between two metal foils. (2) When layer-molding a laminate consisting of a resin-impregnated base material and metal foil using a metal plate, cushioning material, and carrier plate, a thermosetting resin layer containing a thermoplastic resin is placed between two metal foils as a cushioning material. A method for producing a laminate, characterized by using a cushioning material formed by integrally disposing.