Foamed plastics laminates

Details Foamed plastics laminates Foamed plastics laminates

1981-06-11

1982-12-28

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283184, 4283191, 428329, 428331, B32B 502, B32B 1904

Patent

active

043662048

ABSTRACT:
Laminated foamed plastics articles, especially polyurethane and polyisocyanurate rigid foam panels, are faced with a fibrous composite material comprising fibres, especially glass fibres, and vermiculite lamellae. The vermiculite lamellae are preferably size-graded to eliminate larger lamellae. Preformed flexible layers of the fibrous composite material may be used to face rigid foam board in a continuous lamination process. The articles have good fire resistance properties.

REFERENCES:
patent: 4130687 (1978-12-01), Ballard et al.
patent: 4269628 (1981-05-01), Ballard et al.
patent: 4271228 (1981-06-01), Foster et al.
patent: 4292363 (1981-09-01), Briggs

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