Articles of manufacture and their production

Details Articles of manufacture and their production Articles of manufacture and their production

1988-10-24

1990-01-30

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

264126, 264236, 264321, 521184, 521185, 521189, 521918, B27N 300

Patent

active

048972347

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: 4433068 (1984-02-01), Long et al.
patent: 4639343 (1987-01-01), Long et al.
patent: 4708972 (1987-11-01), Long et al.
Gagliani, "Fire Resistant Resilient Foams", Final Report NAS 9-14718, Feb. 1986.

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