Laminate having improved dimensional stability and heat resistan

Details Laminate having improved dimensional stability and heat resistan Laminate having improved dimensional stability and heat resistan

1996-03-13

1998-07-14

Zimmerman, John J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428457, 428252, 428461, 428344, B32B 1504, B32B 1506, B32B 1508

Patent

active

057801479

ABSTRACT:
Disclosed is a laminate comprising a thermosetting resin-impregnated prepreg layer (A) constituting a surface layer, a rubber or thermoplastic resin layer (B) having a flexibility and a hot melt resin adhesive layer (C), the thermosetting resin-impregnated prepreg layer and rubber or thermoplastic resin layer being heat bonded through the hot melt resin adhesive layer. The layer (A) is a prepreg impregnated with a thermosetting resin selected from a diallyl phthalate resin, an unsaturated polyester, a phenol resin, an aminoalkyd resin, an epoxy resin, an acrylurethane resin and a melamine resin. The rubber or resin of the layer (B) is a rubber or a thermoplastic resin selected from chlorinated polyethylene, polybutene, ethylene-vinyl acetate copolymer, an ethylene-propylene-diene copolymer, a chloroprene polymer, chlorosulfonated polyethylene, a styrene-butadiene copolymer and polyvinyl chloride. In addition, the hot melt resin of the layer (C) is a hot melt resin having a melting point of 60.degree. to 165.degree. C. and a solubility parameter (SP value) of 7.4 to 10.9, selected from an ethylene-vinyl acetate copolymer an ethylene-acrylic acid copolymer, carboxylated polyethylene, polyurethane, polybutylene terephthalate and a modified ethylene-vinyl acetate copolymer.

REFERENCES:
patent: 3936341 (1976-02-01), Nanoux
patent: 4443507 (1984-04-01), Yamada et al.
patent: 4960633 (1990-10-01), Hiza et al.
patent: 5098779 (1992-03-01), Minnick
patent: 5397618 (1995-03-01), Cedarleaf

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