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US 10,851,186 B2Granted
Aqueous polymer dispersion
AssigneesDow Global Technologies LLC, Rohm and Haas Company
InventorsYan Li, Junyu Chen, Tao Wang, Zhi Juan Gong, James C. Bohling, Cheng Shen
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Abstract
An aqueous polymer dispersion, a process of preparing the aqueous polymer dispersion, and an aqueous coating composition comprising the aqueous polymer dispersion and providing coatings with improved water repellency and/or improved hydrophobic stain resistance without compromising hydrophilic stain resistance.
Claims11
A process of preparing an aqueous polymer dispersion, comprising:
- polymerization of a monomer composition in an aqueous medium in the presence of a poly(butylene oxide) polymer to obtain an emulsion polymer,
- wherein the monomer composition comprises an ethylenically unsaturated phosphorous-containing monomer, and
- wherein the poly(butylene oxide) polymer has the structure of formula I,
- wherein R1 and R2 each independently represents a hydrogen atom or a straight, branched or cyclic, saturated or unsaturated alkyl group having 1 to 22 carbon atoms;
- and n is an integer of from 5 to 300.
2 more elements
An aqueous polymer dispersion, comprising:
- an emulsion polymer comprising, as polymerized units, an ethylenically unsaturated phosphorous-containing monomer;
- and
- a poly(butylene oxide) polymer having the structure of formula I,
- wherein R1 and R2 each independently represents a hydrogen atom or a straight, branched or cyclic, saturated or unsaturated alkyl group having 1 to 22 carbon atoms;
- and n is an integer of from 5 to 300.
2 more elements
Dependencies are inferred from the claim text.