C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 307/89 (2006.01) C07C 69/76 (2006.01) C08G 59/42 (2006.01) C08G 63/20 (2006.01) C08G 73/10 (2006.01) C08G 73/16 (2006.01) C08L 79/08 (2006.01)
Patent
CA 2062538
K-18574/A/CGC 1538 AROMATIC TRISANHYDRIDES Abstract of the Disclosure Aromatic trisanhydrides of the forrnula (I) Image (I) wherein R is hydrogen, C1-C4alkyl or aryl are useful for the synthesis of star-branched and star-burst polyester-imides and polyesterimide-amides and as curing agents for epoxy resins, phenolics and polyesters.
Ag Ciba-Geigy
Fetherstonhaugh & Co.
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