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US 2020/0048474 A1Published application
Aqueous polymer dispersion and aqueous coating composition comprising the same
AssigneesDow Global Technologies LLC, Rohm and Haas Company
InventorsWeijun Yang, Hu Li, Siyuan Jiang, Tao Wang, Alvin M. Maurice
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Abstract
An aqueous polymer dispersion and an aqueous coating composition comprising the aqueous polymer dispersion that provides coatings with improved durability.
Claims12
An aqueous polymer dispersion, comprising:
- (i) an emulsion polymer having a weight average molecular weight of from 2,000 to 30,000 daltons, wherein the emulsion polymer comprises as polymerized units, based on the dry weight of the emulsion polymer,
- (a) from 10% to 90% by weight of an ethylenically unsaturated ionic monomer,
- (b) from 5% to 90% by weight of a photosensitive monomer, and
- (c) from 0 to 85% by weight of an ethylenically unsaturated nonionic monomer;
- and
- (ii) from 3.5% to 50% by weight of TEMPO and/or a derivative thereof, based on the total dry weight of the aqueous polymer dispersion.
3 more elements
Dependencies are inferred from the claim text.