Polyimide membrane for separation of solvents from lube oil

Details Polyimide membrane for separation of solvents from lube oil Polyimide membrane for separation of solvents from lube oil

1993-04-23

1993-11-23

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

21050039, 521 61, 521 64, 528227, 528353, B29C 2900

Patent

active

052641660

ABSTRACT:
An improved asymmetric membrane fashioned from a polyimide for the liquid separation of solvents from lube oil. The membrane is based on a fully imidized polymer based on 5(6)-amino-1-(4'-aminophenyl)-1,3-trimethylindane polymer and benzophenone tetracarboxylic dianhydride.

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