A process for the production of plastics containing amide...

Details A process for the production of plastics containing amide... A process for the production of plastics containing amide...

C - Chemistry, Metallurgy

08

G

C08G 18/34 (2006.01) C08G 18/18 (2006.01) C08G 18/20 (2006.01) C08G 18/66 (2006.01)

Patent

CA 2129253

Described is a method of producing by splitting off CO2, plastics containing amide groups, by reacting polyfunctional isocyanates, carboxylic acids plus, optionally, alcohols in the presence of tertiary amines, in particular hereto-aromatic amines. The hetero-aromatic amines preferably contain an additional hereto- atom and/or substituents with + I and/or + M effects. The reaction preferably starts at room temperature and can be used to prepare fine-celled foam materials with an acid number of less than 40 and a maximum gross density of 150 g/l within short reaction times at room temperature and without using foaming agents.

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