Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1990-12-17
1992-12-29
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528125, 528128, 528170, 528172, 528173, 528174, 528176, 528183, 528185, 528188, 528220, 528229, 528350, 4284735, C08G 6926, C08G 802
Patent
active
051752409
ABSTRACT:
Aromatic homopolyimide and copolyimide films derived from an aromatic dianhydride and a chlorinated aromatic diamine such as 2-chloro-p-phenylene diamine and 2,2'-dichloro-4,4'-diaminodiphenyl ether are described. The films have low water absorption, high elastic modulus and elongation and can be heat-processed without embrittlement.
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Kreuz John A.
Milligan Stuart N.
E.I. Du Pont de Nemours and Company
Hampton-Hightower P.
Kight III John
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