Foam laminate structures

Details Foam laminate structures Foam laminate structures

1985-09-25

1987-02-24

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283191, 4283197, B32B 712, B32B 326

Patent

active

046457100

ABSTRACT:
Laminate structures comprising a foamed polyurethane or polyisocyanurate resin core with a facer material uniformly adhered thereto with an adhesive material having functional groups capable of interacting chemically with isocyanate groups in the foamed resin core are disclosed. Suitable adhesive materials include .alpha.-olefin-acid copolymers, ethylene vinyl alcohol, polyimides, polyamines and phenolic resins. The bond between the foam core and the facer material has a peel strength of at least 1.5 lbs/in., preferably 5 lbs/in.

REFERENCES:
patent: 3080267 (1963-03-01), Schmalz
patent: 3533901 (1970-10-01), Sutker
patent: 3873407 (1975-03-01), Kumata et al.

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