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:
May. 24, 2016
Filed:
May. 04, 2012
James C. Bohling, Lansdale, PA (US);
Qiaoqiao Cai, Shanghai, CN;
Edwin H. Nungesser, Horsham, PA (US);
Morris C. Wills, Lansdale, PA (US);
Tingke Zhang, Shanghai, CN;
James C. Bohling, Lansdale, PA (US);
Qiaoqiao Cai, Shanghai, CN;
Edwin H. Nungesser, Horsham, PA (US);
Morris C. Wills, Lansdale, PA (US);
Tingke Zhang, Shanghai, CN;
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
The present invention relates to a composition comprising and a method for preparing a stable aqueous dispersion of polymer particles comprising structural units of vinyl acetate and a phosphorous acid monomer. The composition of the present invention provides vinyl acetate/phosphorus acid based polymer particles that improve hiding efficiency in pigmented coatings formulations.