Polyhydroxyalkanoate copolymer/starch compositions for laminates and films
US7077994B2 · kind B2 · utility
40Cited by
28References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Feb 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/696
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Films comprising a blend of polyhydroxyalkanoate copolymer and destructured starch are disclosed. Laminates having a first layer comprising a PHA copolymer and a second layer comprising a PHA copolymer/starch blend or thermoplastic starch 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.