Formation of filled molding powders of polybenzimidazole and oth

Details Formation of filled molding powders of polybenzimidazole and oth Formation of filled molding powders of polybenzimidazole and oth

1991-06-12

1993-07-20

Morgan, Kriellion S.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524424, 524492, 524494, 524701, 524789, 523 1, 523333, C08K 338, C08K 334, C08J 300

Patent

active

052294480

ABSTRACT:
A process for making filled molding powders by preparing a dilute solution of a polymer, making a slurry of a filler in the polymer solution, and then causing the polymer to come out of solution, e.g. by adding a nonsolvent or by solvent evaporation, so that the polymer coats the filler particles.

REFERENCES:
patent: 2695425 (1954-11-01), Stott
patent: 3215663 (1965-11-01), Weisberg
patent: 3755244 (1973-08-01), Hart
patent: 4289685 (1981-09-01), Druschke et al.
patent: 4379871 (1983-04-01), Werle et al.

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