Water-thinnable paint binders based on acrylate copolymers

Details Water-thinnable paint binders based on acrylate copolymers Water-thinnable paint binders based on acrylate copolymers

C - Chemistry, Metallurgy

08

G

C08G 81/02 (2006.01) C09D 133/14 (2006.01) C09D 157/10 (2006.01) C08L 33/06 (2006.01)

Patent

CA 2058371

2666/US3595 ABSTRACT OF THE DISCLOSURE Water-thinnable paint binders based on alkyl (meth)acrylate copolymers obtained by a partial condensation of a polycarboxyl component with a polyhydroxyl component and a subsequent, at least partial, neutralization of the carboxyl groups are described. A proportion of the alkyl (meth)acrylates can be replaced by aromatic vinyl compounds. The condensation products contain 0.5 to 2% by weight of monomers containing two or more reactive double bonds, for example diol di(meth)acrylates or divinylbenzene, 0.5 to 2% by weight of polyol polythioglycolic acid esters and 0.5 to 3.5% by weight of fluorine-containing monomers. The paint binders are particularly suitable for the formulation of high-grade heat-curable finishes with a low content of auxiliary organic solvents.

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