Expandable films and molded products therefrom

Details Expandable films and molded products therefrom Expandable films and molded products therefrom

1995-03-07

1996-07-30

Cannon, James C.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

264 51, 264 54, 428 358, 428 359, 428 361, 428 362, 428 363, 428 364, 428 365, 428 368, 428 3691, 428224, 428253, 428255, 428286, 428287, 4283055, 4283135, 4283166, 4283179, 4283193, B32B 108, B32B 110, B32B 516, B32B 520, B32B 3126

Patent

active

055409636

ABSTRACT:
A thin, tacky, non-pourable film of incompatible in situ-expandable thermoplastic particles and thermosettable matrix resin that contains an essentially uniform density and thickness across the breadth of the film. The in situ-expandable mass is not pourable yet can be easily dispensed in a uniform manner within a mold and thereafter expanded to the dimensions of the mold. Composites and reinforced compositions, as well as methods of molding, are disclosed.

REFERENCES:
patent: 5234757 (1993-08-01), Wong
patent: 5397611 (1995-03-01), Wong

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