Injection molding process with reactive gas treatment

Details Injection molding process with reactive gas treatment Injection molding process with reactive gas treatment

1988-04-26

1989-01-24

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Reactive gas or vapor treatment of work

Work is organic material

26432812, B29C 4577

Patent

active

048000531

ABSTRACT:
A process for making shaped articles by injecting a thermoplastic or thermoset polymer into a mold cavity in which is maintained a reactive atmosphere containing between 0.1 mole % and 50 mole % F.sub.2 and at least 20 ppm O.sub.2 while the polymer is being injected into the mold, such that any portion of the polymer contacts the reactive atmosphere for a time not greater than 0.5 sec.

REFERENCES:
patent: 2811468 (1957-10-01), Joffe
patent: 3255099 (1966-06-01), Wolinski
patent: 3862284 (1975-01-01), Dixon et al.
patent: 3988491 (1976-10-01), Dixon et al.
patent: 4009304 (1977-02-01), Dixon et al.
patent: 4435453 (1984-03-01), Vioth et al.
patent: 4550043 (1985-10-01), Beck

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