Structural laminate and method for making same

Details Structural laminate and method for making same Structural laminate and method for making same

1976-01-19

1977-06-07

Whitby, Edward G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156178, 156181, 156229, 156497, 264 455, 264 463, 264 453, 428113, 428285, 428313, B32B 520

Patent

active

040281582

ABSTRACT:
A structural laminate comprises at least one planar facing sheet with a rigid foam attached to one surface of the facing sheet. The rigid foam may be any polymeric material which is capable of being foamed. Distributed substantially evenly throughout the foam is a mat of long straight glass fibers arranged in layers substantially parallel to the facing sheet. The process for producing this structural laminate comprises the steps of contacting a thin, substantially incompressible yet expansible mat of long straight glass fibers with a foam-forming mixture on each face of the mat, and passing the facing sheets having the mat and the foam-forming mixture there between through the nip of two rotating rolls.

REFERENCES:
patent: 3174887 (1965-03-01), Voelker
patent: 3860371 (1975-01-01), Willy
patent: 3867494 (1975-02-01), Rood et al.
patent: 3870588 (1975-03-01), Yamamota
patent: 3940517 (1976-02-01), De Leon

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