Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work
Patent
1988-05-02
1989-09-12
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
264136, 264311, 264344, 264258, 264137, B29C 3942, B29C 4104
Patent
active
048657875
ABSTRACT:
Filament wound or dry lay-ups of structural shapes are impregnated with a binder of thermoplastic resin. Impregnation is achieve by adding a polymer solution to a centrifuge containing reinforcing material. The centrifuge is spun at high rotational speed. Solution is metered into the centrifuge and contacts the inner surface of the reinforicng material. A preheated carrier gas flow is circulated in the centrifuge using baffles, then released to a solvent recovery system. Alternatively, vacuum drying to recover solvent can be used.
REFERENCES:
patent: 2009232 (1935-07-01), Hood
patent: 2054155 (1936-09-01), Dulkin
patent: 4002714 (1977-01-01), Usui
Johnson Roger N.
Tomkinson-Walles Gayle D.
Vallance Michael A.
Davis Jr. James C.
Durkin II Jeremiah F.
General Electric Company
Steinberg William H.
Webb II Paul R.
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