Dirt pick-up resistant composition
US10723908B2 · kind B2 · utility
9Cited by
34References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2019 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jan 7, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Water-based compositions that are resistant to dirt pickup, efflorescence, tannin bleed-through and surfactant leaching are described. The water-based composition includes a latex or water-dispersible polymer and a non-VOC UV-VIS (preferably, ultraviolet) absorber as a dirt pickup resistance additive. Methods of making water-based compositions including a non-VOC UV-VIS absorber as an additive are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.