Method for the impregnation of filament wound structures with th

Details Method for the impregnation of filament wound structures with th Method for the impregnation of filament wound structures with th

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

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