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US 12,528,963 B2Granted
Aqueous polymer dispersion and use thereof
AssigneeHenkel AG & Co. KGaA
InventorsXuan Xie, JunJun Wu
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Abstract
The present invention provides an aqueous polymer dispersion comprising at least one polymer having a carboxyl group and optionally an additional functional group selected from hydroxy, isocyanate, fluoro, phosphate, hydrazide, acetoacetate group and combination thereof, in which the polymer has a glass transition temperature of larger than −40° C. and less than 35° C., and the aqueous polymer dispersion has a solid content of larger than 50% by weight.
Claims11
An aqueous polymer dispersion comprising:
- (1) from about 99.1 to about 99.8 wt % of at least one polymer having (A) a carboxyl group and (B) an additional functional group selected from fluoro, phosphate or hydrazide group;
- wherein the polymer has a glass transition temperature of from about −5 to about −20° C.;
- and
- (2) 0.1% to 1.5% by weight, based on the total weight of the dispersion of an additive selected from a multifunctional organosilane or isocyanate crosslinker;
- wherein the aqueous polymer dispersion has a solid content of about 60 to about 64% by weight.
2 more elements
Dependencies are inferred from the claim text.