Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1997-09-05
1999-08-17
Hampton-Hightower, P.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528170, 528172, 528173, 528310, 528322, 528352, 528353, 21050038, 21050039, 4284111, 4284735, 4284745, C08G 7310
Patent
active
059395206
ABSTRACT:
Regiospecific polyamide-imides are cast to form membranes which exhibit superior gas separation properties when compared to polyamide-imide membranes formed from random copolymers. The regiospecific polyamide-imides are synthesized by reacting specific aromatic diimide dicarboxylic acids with select aromatic diamines.
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Air Products and Chemicals Inc.
Hampton-Hightower P.
Rodgers Mark L.
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