Patents
US 12753321 B2: Aqueous dispersion of polymer particles, microspheres, and colloidal silica particles
- Granted
- 2026-10-06
- Filed
- 2020-07-31 application 18016465
- Type
- Utility · 7 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present invention is a composition comprising an aqueous dispersion of polymer particles, polymeric organic crosslinked microspheres, and colloidal silica particles. The composition is useful in coating compositions for exterior applications to achieve a balance of excellent dirt pickup resistance and durability performance under accelerated testing conditions.
Source: PTBLXML, file of 2026-10-06 (ipgb20261006.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 2026-10-06 |
| Rohm and Haas Company 1,152 patents | US company or organization | Collegeville, PA | PTBLXML, file of 2026-10-06 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Caifeng Wang | Shanghai, CN | 11 | PTBLXML, file of 2026-10-06 | |
| Jianming Xu | Shanghai, CN | 36 | PTBLXML, file of 2026-10-06 | |
| Kok Chiew Poh | Singapore, SG | PTBLXML, file of 2026-10-06 | ||
| Yuehan Hu | Shanghai, CN | 5 | PTBLXML, file of 2026-10-06 | |
| Tao Wang | Highton, AU | 649 | PTBLXML, file of 2026-10-06 | |
| Juan F. Callejas | Audubon, PA | 4 | PTBLXML, file of 2026-10-06 | |
| Philip R. Harsh | Birdsboro, PA | 20 | PTBLXML, file of 2026-10-06 | |
| James C. Bohling | Lansdale, PA | 81 | PTBLXML, file of 2026-10-06 | |
| Andrew J. Swartz | Fleetwood, PA | PTBLXML, file of 2026-10-06 | ||
| Partha S. Majumdar | Harleysville, PA | 37 | PTBLXML, file of 2026-10-06 | |
| Joseph Tanzer | Ft. Washington, PA | 2 | PTBLXML, file of 2026-10-06 |
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 | C09D133/08 | PTBLXML, file of 2026-10-06 |
| C08K | Use of inorganic or non-macromolecular organic substances as compounding ingredients | C08K2201/005 | PTBLXML, file of 2026-10-06 |
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.