Title:
AQUEOUS DISPERSION OF POLYMER ADDITIVE AND PROCESS THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/087876
Kind Code:
A1
Abstract:
An aqueous dispersion of a polymer additive having a weight average molecular weight of from 2,000 to 25,000 g/mol and comprising, by weight based on the weight of the polymer additive, (i) from 20%to 85%of structural units of an ethylenically unsaturated siloxane monomer; (ii) from 0.1%to 10%of structural units of an ethylenically unsaturated functional monomer carrying at least one functional group selected from an amide, ureido, carboxyl, carboxylic anhydride, hydroxyl, phosphorus acid, or sulfonic acid group, a salt thereof, or mixtures thereof; and (iii) from 5%to 79.9%of structural units of an additional ethylenically unsaturated nonionic monomer. The aqueous dispersion has a coagulum content less than 2,000 ppm after filtration through a 44 micron sieve. A coating composition comprises the aqueous dispersion of the polymer additive can provide coatings with anti-corrosion and/or stain removal properties.
Inventors:
LI HU (CN)
DONG XIANGTING (CN)
DONG XIANGTING (CN)
Application Number:
PCT/CN2020/124306
Publication Date:
May 05, 2022
Filing Date:
October 28, 2020
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
LI HU (CN)
DONG XIANGTING (CN)
LI HU (CN)
DONG XIANGTING (CN)
International Classes:
C08F230/08; C09D133/08; C09D143/04
Domestic Patent References:
| WO2020010564A1 | 2020-01-16 | |||
| WO2020248189A1 | 2020-12-17 | |||
| WO2014190515A1 | 2014-12-04 | |||
| WO2018119721A1 | 2018-07-05 |
Foreign References:
| CN1832972A | 2006-09-13 | |||
| CN105209511A | 2015-12-30 | |||
| CN111718629A | 2020-09-29 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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