Free standing dispersant film
US11441002B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | May 10, 2018 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | Mar 29, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/03
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A free standing dispersant film is provided, including: a partially hydrolyzed polyvinyl acetate; a poly(ethylene oxide); a polyalkylene glycol; a plasticizer; a dispersant polymer; optionally, a poly(isobutylene-co-maleic anhydride) copolymer, wherein the poly(isobutylene-co-maleic anhydride) copolymer is at least partially neutralized; and optionally, an optional additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.