Blends of aliphatic-aromatic copolyesters with ethylene-vinyl acetate copolymers
US7241838B2 · kind B2 · utility
41Cited by
30References
39Claims
0Family size
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Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Jul 10, 2007 |
| Priority date | — |
| Expiry date | Jun 23, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed are blends of aliphatic-aromatic copolyesters with poly(ethylene-co-vinyl acetate) copolymers and shaped articles prepared therefrom. These blends have higher melt strength than the aliphatic-aromatic copolyester alone and exhibit increased melt strength and better processability. In addition, the blends and shaped articles show bio-disintegration and/or biodegradability in a composting environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.