The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2017
Filed:
Aug. 02, 2012
Qiaoqiao Cai, Shanghai, CN;
Junyu Chen, Shanghai, CN;
Xiangting Dong, Shanghai, CN;
Tingke Zhang, Shanghai, CN;
James C. Bohling, Lansdale, PA (US);
Qiaoqiao Cai, Shanghai, CN;
Junyu Chen, Shanghai, CN;
Xiangting Dong, Shanghai, CN;
Tingke Zhang, Shanghai, CN;
James C. Bohling, Lansdale, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Dow Global Technologies LLC, Midland, MI (US);
Abstract
The present invention relates to a composition of a stable aqueous dispersion of polymer particles comprising structural units of a) vinyl acetate; b) a vinyl ester of a branched carboxylic acid monomer; and c) a phosphorus acid monomer. The composition of the present invention provides vinyl ester/phosphorus acid based polymer particles that improve hiding efficiency in pigmented coatings formulations.