C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
154/140, 117/196
C08G 73/14 (2006.01) B32B 27/34 (2006.01) C09D 179/08 (2006.01)
Patent
CA 2008859
K-17438/+/CGM 344 Novel polymers Abstract Novel soluble polyamide-polyimide block copolymers having an average molecular weight Mn of 1,000-50,000 are described. 25-100 mol% of the diamine radicals in the novel compounds have the formula Image and/or Image ,in which Y is alkyl or halogen and m is 0 to 4. The compounds are soluble in dipolar, aprotic solvents and can be crosslinked by heating to give insoluble products.
Ag Ciba-Geigy
Fetherstonhaugh & Co.
Pfaendner Rudolf
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