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Title:
AQUEOUS COATING COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/115541
Kind Code:
A1
Abstract:
An aqueous coating composition contains: (A) a polyacid polymer containing a phosphonate and/or phosphinate functional group, wherein the polyacid polymer has a weight average molecular weight of 2000 to 25000 g/mol and comprises, by weight based on the weight of the polyacid polymer, from 20%to 100%of structural units of an acid monomer, a salt thereof, or mixtures thereof; and from zero to 80%of structural units of an ethylenically unsaturated nonionic monomer; (B) an emulsion polymer comprising, by weight based on the weight of the emulsion polymer, from 0.3%to 2.5%of structural units of an ethylenically unsaturated phosphorous-containing acid monomer, a salt thereof, or mixtures thereof; from zero to 10%of structural units of an additional acid monomer, a salt thereof, or mixtures thereof; and structural units of an ethylenically unsaturated nonionic monomer; (C) from 0.005%to 0.15%, by weight based on the weight of the aqueous coating composition, of a polyethylenimine, a modified polyethylenimine, or mixtures thereof; having a weight average molecular weight of 500 to 50000 grams per mole; and (D) a pigment, an extender, or mixtures thereof; where the coating composition has a pigment volume concentration of 78%to 86%.

Inventors:
YANG WEIJUN (CN)
CUI LONGLAN (CN)
Application Number:
PCT/CN2021/141221
Publication Date:
June 29, 2023
Filing Date:
December 24, 2021
Export Citation:
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Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
YANG WEIJUN (CN)
CUI LONGLAN (CN)
International Classes:
C09D5/02; C09D7/65; C09D133/04; C09D143/02
Domestic Patent References:
WO2016135000A12016-09-01
WO2016118728A12016-07-28
WO2020104303A12020-05-28
WO2018149760A12018-08-23
Foreign References:
US20170121553A12017-05-04
US20160257837A12016-09-08
US20120277334A12012-11-01
EP1582567A12005-10-05
US20070208129A12007-09-06
EP0792890A11997-09-03
US20090176127A12009-07-09
US10774034B22020-09-15
US7645855B22010-01-12
Other References:
T.G. FOX, BULL. AM. PHYSICS SOC., vol. 1, no. 3, 1956, pages 123
"Polymer Handbook", INTERSCIENCE PUBLISHERS
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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