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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.:

US 12729309 B1

PDFFull Text
Date of Patent:
Sep. 08, 2026

Filed:

Sep. 22, 2021

Aqueous coating composition and method of preparing thereof

Applicant:

Dow Global Technologies Llc, Midland, MI (US);

Inventors:

Yan Wu, Shanghai, CN;

Hu Li, Shanghai, CN;

Baoqing Zheng, Shanghai, CN;

Jia Tang, Shanghai, CN;

Assignee:

DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

Cephia D Toomer

Int. Cl.
CPC ...
C09D 5/08 (2006.01); C09D 5/02 (2006.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 125/14 (2006.01); C08K 3/04 (2006.01); C08K 3/32 (2006.01); C08K 5/092 (2006.01);
U.S. Cl.
CPC ...
C09D 5/084 (2013.01); C09D 5/022 (2013.01); C09D 5/028 (2013.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 125/14 (2013.01); C08K 3/04 (2013.01); C08K 2003/327 (2013.01); C08K 2003/328 (2013.01); C08K 5/092 (2013.01); C08K 2201/014 (2013.01);
Abstract

An aqueous coating composition contains (A) an emulsion polymer comprising, based on the weight of the emulsion polymer, from 5% to 28% by weight of structural units of a cycloalkyl (meth) acrylate, from 0.05% to 10% by weight of structural units of a phosphorous acid monomer, a salt thereof, or mixtures thereof, from zero to 10% by weight of an additional ethylenically unsaturated acid monomer, a salt thereof, or mixture thereof, and structural units of an additional monoethylenically unsaturated nonionic monomer; (B) a specific amount of an aliphatic carboxylic acid of formula (I) HOOC—R—COOH, (II) R—COOH or combinations thereof, a salt thereof, or mixtures thereof; and (C) from 2.6% to 10% by weight of an anticorrosive pigment, based on the weight of the aqueous coating composition.

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