Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work – To degas or prevent gas entrapment
Patent
1992-03-02
1993-08-17
Chiesa, Richard L.
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
To degas or prevent gas entrapment
156286, 264258, 264511, 264553, 264571, 264DIG78, B29C 4356
Patent
active
052366464
ABSTRACT:
This invention relates to a process for preparing thermoplastic composites .e. laminates from a plurality of individual plies of thermoplastic resin prepregs. The prepregs are formed into composites under two substantially concentric vacuum chambers. High temperatures and low consolidating pressures are applied against the prepregs in an inner vacuum chamber while a lower vacuum is drawn from the rigid outer chamber to remove the volatiles and consolidate the prepregs.
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Cochran Roland C.
Rosenzweig Edwin L.
Bechtel James B.
Chiesa Richard L.
The United States of America as represented by the Secretary of
Tura James V.
Verona Susan E.
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