Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1979-04-27
1981-02-17
Lee, Lester L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
560 13, 560 18, 560 36, 560 45, 560 47, 560 48, 525426, 260 304N, 260 328N, 260 332R, 260 334R, 260326C, 526259, 526262, 526263, 526285, 528125, 528126, 528128, 528170, 528172, 528185, 528187, 528226, 528229, 528322, 528351, 528352, 528353, C08G 7312
Patent
active
042514185
ABSTRACT:
The products of the invention are acetylene end-capped polyimide oligomers prepared from a dianhydride of an aromatic tetracarboxylic such as 3,3', 4,4'-benzophenonetetracarboxylic acid, an aromatic diamine, and a propargyl ester of an amino-substituted aromatic acid such as aminobenzoic acid. The structure of the polyimide oligomers is shown in FIG. 3.
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patent: 3879349 (1975-07-01), Bilow et al.
patent: 3998786 (1976-12-01), D'Alelio
patent: 4058505 (1977-11-01), D'Alelio
patent: 4098767 (1978-07-01), Bilow
patent: 4100138 (1978-07-01), Bilow et al.
Chow Wai Y.
Thackaberry S. Paul
Gulf Oil Corporation
Kelly Richard L.
Lee Lester L.
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