Free standing film
US10982175B2 · kind B2 · utility
1Cited by
2References
9Claims
0Family size
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Key dates
| Filing date | Mar 19, 2018 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Mar 29, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A free standing film is provided including: a partially hydrolyzed polyvinyl acetate; a poly(ethylene oxide); a polyalkylene glycol; a plasticizer; optionally, a poly(isobutylene-co-maleic anhydride) copolymer; and optionally an additive. Unit dose packages including the free standing film are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.