Copolyimides-polyamides from aliphatic and aromatic anhydrides,

Details Copolyimides-polyamides from aliphatic and aromatic anhydrides, Copolyimides-polyamides from aliphatic and aromatic anhydrides,

1982-09-29

1983-11-01

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

428458, 528125, 528128, 528172, 528188, 528206, 528208, 528220, 528229, 528352, 528353, C08G 7310

Patent

active

044131151

ABSTRACT:
This invention relates to copolyimides-polyamides prepared from mixtures of tetramethylcyclobutane-1,2,3,4-tetracarboxylic dianhydride (TMCDA), aromatic or aliphatic dianhydrides, and dicarboxylic acids or their esters or acid chlorides. These dianhydride-dicarboxylic acid mixtures are then reacted with aliphatic or aromatic diamines. These novel copolyimides-polyamides are useful in the preparation of molded articles, fibers, films, laminates and coatings.

REFERENCES:
Nakanishi et al., Aliphatic Poly (Amido Acids) and Polyimides (1973), Polymers 14, 440.

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