Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1989-07-31
1990-03-13
Foelak, Morton
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283186, 4284735, 521183, 521184, 521185, 521189, B05D 302
Patent
active
049082655
ABSTRACT:
By compressing and heat curing a non-resilient, non-flexible recurable material formed by subjecting cured polyimide foam to the action of pressurized steam, a wide variety of useful articles may be produced. These include tough, flame-resistant plastic films, sheets, panels, boards, and shapes in general; composites (both reinforced and unreinforced); and laminates and other articles in which separate shapes or parts are bonded together by a new type of tough, flame-resistant adhesive. Additionally, heretofore worthless waste products such as the kerf cut away from buns of polyimide foam during the foam manufacturing process can be converted and vastly upgraded into any of such an array of new articles of manufacture such as those just mentioned.
REFERENCES:
patent: 3726834 (1973-04-01), Acle, Jr.
patent: 4070312 (1978-01-01), Gagliani et al.
patent: 4319000 (1982-01-01), Gagliani et al.
patent: 4433068 (1984-02-01), Long et al.
patent: 4562112 (1985-12-01), Lee et al.
patent: 4639343 (1987-01-01), Long et al.
Foelak Morton
Hammond Richard J.
Imi-Tech Corporation
Sieberth John F.
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