Polymers containing urethane groups, a process for their...

Details Polymers containing urethane groups, a process for their... Polymers containing urethane groups, a process for their...

C - Chemistry, Metallurgy

08

G

402/123, 400/740

C08G 71/04 (2006.01) C08G 18/64 (2006.01) C08G 63/58 (2006.01) C08G 63/68 (2006.01) C09D 175/04 (2006.01)

Patent

CA 1307614

Abstract of the disclosure: Polymers which contain urethane groups and are capable of being crosslinked by extraneous crosslinking agents, solutions thereof and aqueous dispersions thereof, pre- pared without the use of isocyanates by reacting polyamino compounds with polycarbonates and, if appropriate, re- acting the reaction product further with polycarboxylic acids to give products having an acid number between 0 and 100, and, if appropriate, neutralizing the resulting products partly or completely by adding basic compounds, preferably organic bases, and, if appropriate, mixing the partly or completely neutralized products vigorously with an amount of water such that aqueous polymer disper- sions having a solid content of up to 75% by weight, relative to the dispersion, are obtained. The use of the polymers containing urethane groups on their own or as a mixture with further reactive com- ponents, as extraneous crosslinking agents, from the group comprising isocyanate, melamine, alkyd and epoxy resins, in non-aqueous or aqueous formulations of adhesives and paints, especially in aqueous baking paint formulations and in aqueous, curable paint formulations which can be deposited by anaphoresis.

537830

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