Composite structures

Details Composite structures Composite structures

1989-03-14

1991-04-23

Woo, Jay H.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

428213, 428334, 4284231, 521167, 521 51, 521163, 528 68, 528 76, 528 77, 264257, 264258, 264261, 26433119, C08G 1800, B32B 502, B32B 526, B32B 528

Patent

active

050099507

ABSTRACT:
The present invention is directed to composite structures by thermoplastically shaping an assembly of at least two flat thermoplastically formable plastic materials placed in layers one above the other and optionally at least one upper, lower and/or intermediate layer containing a reinforcing or filler material under such conditions of temperature and pressure that shaping is accompanied by intimate union of the individual layers of the assembly, characterized in that at least one of the flat plastic materials is based on a polyisocyanate polyaddition product having a density of at least 0.8 g/cm.sup.3 which has been prepared by the reaction of

REFERENCES:
patent: 4218543 (1980-08-01), Weber et al.
patent: 4774263 (1988-09-01), Weber et al.
patent: 4774264 (1988-09-01), Weber et al.
patent: 4779459 (1988-10-01), de Rego
patent: 4794129 (1988-12-01), Gillis
Becker/Braun, Kunststoff-Handbuch, vol. 7, "Polyurethane", Carl Hanser Verlag, Munich/Vienna, 1983, pp. 406 et seq.

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