Patents
US 12767834 B2: Aqueous coating composition and method of preparing thereof
- Granted
- 2026-10-20
- Filed
- 2021-09-22 application 18571416
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An aqueous coating composition contains: (A) an emulsion polymer comprising, based on the weight of the emulsion polymer, from 0.48 wt % to 1.20 wt % of structural units of a phosphorous acid monomer, a salt thereof, or mixtures thereof, from 0.5 wt % to 3 wt % of structural units of diacetone (meth) acrylamide, from 10 wt % to 80 wt % of structural units of a vinyl aromatic monomer, structural units of a C1-C24-alkyl ester of (meth) acrylic acids, and optionally, structural units of an α, β-ethylenically unsaturated carboxylic acid; (B) a specific amount of a dicarboxylic acid of formula (I) HOOC—R—COOH, a salt thereof, or mixtures thereof; and (C) from 0.05 wt % to 5 wt % of a flash rust inhibitor relative to the aqueous coating composition weight.
Source: PTBLXML, file of 2026-10-20 (ipgb20261020.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| DOW GLOBAL TECHNOLOGIES LLC 4,152 patents | US company or organization | Midland, MI | DOW GLOBAL TECHNOLOGIES LLC State business registration EXACT high confidence: identical full name and state | PTBLXML, file of 2026-10-20 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Hu Li | Shanghai, CN | 40 | PTBLXML, file of 2026-10-20 | |
| Jia Tang | Shanghai, CN | 58 | PTBLXML, file of 2026-10-20 | |
| Baoqing Zheng | Shanghai, CN | 18 | PTBLXML, file of 2026-10-20 | |
| Yan Wu | Shanghai, CN | 19 | PTBLXML, file of 2026-10-20 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C09D | Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor | C09D5/022 | PTBLXML, file of 2026-10-20 |
| C08K | Use of inorganic or non-macromolecular organic substances as compounding ingredients | C08K5/092 | PTBLXML, file of 2026-10-20 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.