Solvent sweeping of polycarbonates

Details Solvent sweeping of polycarbonates Solvent sweeping of polycarbonates

1979-07-03

1981-12-15

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

528494, 528495, C08J 300

Patent

active

043060579

ABSTRACT:
Novel thermoplastic molding compositions are disclosed which comprise a polycarbonate molding powder in admixture with a minor amount of a volatile matter entraining agent selected from the group consisting essentially of monochlorobenzene, a polyhydric material and solutions of a polyhydric material in water. A method of preparing a polycarbonate molding composition containing reduced amounts of volatile impurities is also disclosed.

REFERENCES:
patent: 3186961 (1965-06-01), Sears
patent: 3213060 (1965-10-01), Jackson
patent: 3254047 (1966-05-01), Caldwell
patent: 3410823 (1968-11-01), Cleveland
patent: 3505273 (1970-04-01), Cleveland
patent: 3954713 (1976-05-01), Schnoring
patent: 4013702 (1977-03-01), Cartier
patent: 4038252 (1977-07-01), Vernaleken

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