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:
Dec. 16, 2025
Filed:
Oct. 10, 2020
Dow Global Technologies Llc, Midland, MI (US);
Rohm and Haas Company, Collegeville, PA (US);
Yan Wu, Shanghai, CN;
Baoqing Zheng, Shanghai, CN;
Fu Zhan, Shanghai, CN;
Changkun Piao, Shanghai, CN;
Juan Zhao, Shanghai, CN;
Hao Hu, Shanghai, CN;
Xiuqing Xu, Shanghai, CN;
Jia Tang, Shanghai, CN;
Dong Yun, Shanghai, CN;
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
DOW CHEMICAL (CHINA) INVESTMENT COMPANY LIMITED, Shanghai, CN;
ROHM AND HAAS COMPANY, Collegeville, PA (US);
Abstract
An aqueous polymer composition comprises (A) a specific emulsion polymer comprising structural units of a cycloalkyl (meth)acrylate, structural units of an acetoacetoxy or acetoacetamide functional monomer, and structural units of a phosphorous acid monomer, a salt thereof, or mixtures thereof; and (B) a specific amount of a waterborne resin comprising at least one fatty acid ester segment and having a number average molecular weight of 20,000 g/mol or less, based on the total dry weight of the emulsion polymer and the waterborne resin. A coating composition comprising such aqueous polymer composition provides coatings made therefrom with improved anti-corrosion property.