Multi-stage polymer with low MW shell and high Tg core for early block resistance
US11685800B2 · kind B2 · utility
1Cited by
4References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 6, 2020 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jul 31, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymers including multi-stage polymers that combine the structural integrity of a polymer with a high glass transition temperature (Tg) with a softer, lower molecular weight polymer that coalesces quickly and is flexible to maintain scrubbability are disclosed. Architectural compositions containing these film-forming polymers exhibit anti-blocking properties within one hour from being applied to a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.