	US 11,897,982 B2
	Water-based polymer dispersions and uses thereof
Jin Zheng, Shanghai (CN); Lingyun Huang, Shanghai (CN); Yun Li, Shanghai (CN); Haoqing Sun, Shanghai (CN); and Jiyang Zhang, Shanghai (CN)
Assigned to Wacker Chemie AG, Munich (DE)
Appl. No. 16/969,684
Filed by WACKER CHEMIE AG, Munich (DE); and Jin Zheng, Shanghai (CN)
PCT Filed Feb. 13, 2018, PCT No. PCT/CN2018/076615 § 371(c)(1), (2) Date Aug. 13, 2020, PCT Pub. No. WO2019/157620, PCT Pub. Date Aug. 22, 2019.
Prior Publication US 2021/0002402 A1, Jan. 7, 2021
Int. Cl. C08F 220/28 (2006.01); C04B 24/26 (2006.01); C04B 40/00 (2006.01); C08L 29/04 (2006.01); C08L 33/14 (2006.01); C08L 33/26 (2006.01); C08L 71/02 (2006.01)

CPC C08F 220/285 (2020.02) [C04B 24/2623 (2013.01); C04B 24/2647 (2013.01); C04B 24/2652 (2013.01); C04B 40/0039 (2013.01); C08L 29/04 (2013.01); C08L 33/14 (2013.01); C08L 33/26 (2013.01); C08L 71/02 (2013.01); C08L 2201/50 (2013.01); C08L 2201/54 (2013.01); C08L 2205/035 (2013.01)]

16 Claims

1. An aqueous polymer dispersion, comprising:

i) a copolymer prepared by the polymerization of comonomers comprising a vinyl ester and ethylene,

ii) an anionic polyacrylamide,

iii) a polyvinyl alcohol, and

iv) water,

wherein the anionic polyacrylamide is present in an amount of at least 0.15 wt. %, based on the total weight of the vinyl ester and ethylene monomers.