Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1991-08-29
1993-07-27
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528126, 528128, 528170, 528171, 528172, 528173, 528176, 528183, 528185, 528188, 528220, 528226, 528229, 528350, 528351, 528352, 528353, C08G 802, C08G 7310, C08G 6926
Patent
active
052311600
ABSTRACT:
A novel aromatic diamine; a polyimide comprising 1,3-bis(3-aminobenzoyl)benzene or 4,4'-bis(3-aminobenzoyl)biphenyl as a diamine component and having recurring structural units represented by the formula (III): ##STR1## wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having from 2 to 27 carbon atoms, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, and noncondensed aromatic radical connected each other with a direct bond or a bridge member, and X is a divalent radical of ##STR2## and a polyimide having a terminal aromatic group which is essentially unsubstituted or substituted with a radical having no reactivity with amines or dicarboxylic acid anhydrides or a composition comprising said polyimide.
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Ishihara Yuko
Kataoka Toshiyuki
Kawashima Saburo
Oikawa Hideaki
Tamai Shoji
Hampton-Hightower P.
Kight III John
Mitsui Toatsu Chemicals Incorporated
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