Water-responsive, biodegradable compositions and films and articles comprising a blend of polylactide and polyvinyl alcohol and methods for making the same
US6552162B1 · kind B1 · utility
80Cited by
31References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Mar 14, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a water-responsive blend of a polylactide and a polyvinyl alcohol. The present invention includes films and personal care articles comprising a blend of a polyvinyl alcohol and a polylactide and includes a method of making such films and articles and a method of varying the water responsiveness of such films and articles. In a preferred embodiment, the compositions, films and articles comprise a blend of polyvinyl alcohol and modified polylactide. The compositions and films described herein are useful as a component in flushable and degradable articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.