C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
117/196, 402/217
C08G 18/00 (2006.01) B05D 7/20 (2006.01) C08G 18/34 (2006.01) C08G 18/38 (2006.01) C08G 73/10 (2006.01)
Patent
CA 1064643
Abstract of the Disclosure A process for the production of polycondensates linked by cyclic imide groups, wherein at least one organic poly- isocyanate or masked isocyanate, formic acid and at least one cyclic dicarboxylic acid anhydride compound which, in addition to the cyclic anhydride group, is substituted at least once by another cyclic anhydride, carboxyl, carbalkoxy, carbaroxy or SO3H group, are polycondensed at temperatures in the range from 0 to 450°C.
235186
Clarenz Werner
Dunwald Willi
Merten Rudolf
Zecher Wilfried
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