Aqueous binders

Details Aqueous binders Aqueous binders

C - Chemistry, Metallurgy

09

D

C09D 175/06 (2006.01) C08G 18/10 (2006.01) C08G 18/36 (2006.01) C08G 18/42 (2006.01) C08G 18/80 (2006.01) C09D 167/00 (2006.01) C09D 167/08 (2006.01) C09D 175/04 (2006.01) C11C 3/00 (2006.01) C08L 67/06 (2006.01)

Patent

CA 2435088

Aqueous binders comprising condensation products AB of carboxyl-containing resins A and hydroxyl group-containing resins B, hydroxyurethanes C, and curing agents D which are active even at temperatures starting at 120 °C wherein the hydroxyurethanes C include units derived from polyfunctional hydroxy compounds Ca having at least 4 carbon atoms, it being possible for some of the carbon atoms to be replaced by oxygen atoms or by ester groups, and at least two hydroxyl groups, and units derived from polyfunctional isocyanates Cb selected from isocyanates of the formula R(NCO)n, where R is an n-functional cycloaliphatic, aliphatic-polycyclic, aromatic-aliphatic- branched or aromatic radical and n is at least 2, and their use for preparing automotive surfacer materials

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