Polyurethane dispersion containing a free radical polymer...

Details Polyurethane dispersion containing a free radical polymer... Polyurethane dispersion containing a free radical polymer...

C - Chemistry, Metallurgy

08

L

C08L 75/04 (2006.01) C08L 33/02 (2006.01) C09D 133/00 (2006.01) C09D 175/04 (2006.01) C09J 133/00 (2006.01) C09J 175/04 (2006.01)

Patent

CA 2120082

Abstract of the Disclosure: An aqueous dispersion contains A) a polyurethane essentially composed of a) organic polyisocyanates, b) polyhydroxy compounds having a molecular weight of from above 500 to 5,000 g/mol, c) compounds having at least one group reactive toward isocyanates and having at least one ionic group or group convertible into an ionic group d) if required, compounds which differ from c) and have at least two functional groups reactive toward isocyanate and a molecular weight of from 60 to 500 g/mol, and B) a free radical polymer containing metal salt groups, formed from at least divalent metals with acid groups of the polymer, the content of salt groups being from 5 to 1,000 mmol of salt groups per kg of the sum of A) and B).

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