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 2008860
K-17437/+/CGM 343 Process for the preparation of crosslinked products and novel polymers Abstract A process for the preparation of crosslinked polymers by heating selected polyamide-polyimide block copolymers having an average molecular weight Mn of 1,000-50,000 is described. In the compounds, at least 10 mol% of alkyl-substituted diaminodiphenylmethane groups, relative to the total amount of diamine radicals in the polyamide and polyimide blocks, are co-condensed. The uncrosslinked compounds are soluble in dipolar, aprotic solvents.
Ag Ciba-Geigy
Fetherstonhaugh & Co.
Pfaendner Rudolf
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