Water-responsive, biodegradable film compositions comprising polylactide and polyvinyl alcohol, and a method for making the films
US6075118A · kind A · utility
69Cited by
17References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1997 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Jul 31, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is a water-responsive film. More particularly, the present invention is a film comprising a blend of a polyvinyl alcohol and a polylactide and a method of making such films. In a preferred embodiment, the invention is a film comprising a blend of polyvinyl alcohol and modified polylactide and a method of making such films. The films are useful as a component in flushable and degradable articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.