Patent · US Active

Free standing film

US10982175B2 · kind B2 · utility

1Cited by
2References
9Claims
0Family size

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Key dates

Filing dateMar 19, 2018
Grant dateApr 20, 2021
Priority date
Expiry dateMar 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.