Polyhydroxyalkanoate copolymer and polylactic acid polymer compositions for laminates and films
US6808795B2 · kind B2 · utility
27Cited by
27References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2002 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Feb 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Environmentally degradable films comprising a blend of polyhydroxyalkanoate copolymer and a polylactic acid polymer or copolymer are disclosed. Laminates having a first layer comprising a PHA copolymer and a second layer comprising a PLA polymer or copolymer are also disclosed. Disposable articles comprising the environmentally degradable films or laminates are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.