Biodegradable resin composition for molding and object molded or formed from the same
US7173080B2 · kind B2 · utility
30Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Oct 29, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A biodegradable resin composition and an object molded or formed from the composition. The resin composition comprises: 100 parts by weight of a biodegradable polyester resin comprising not smaller than 50% by weight of polylactic acid having a melting point of not lower than 160° C., the biodegradable polyester resin having a melt flow rate of 0.1 to 50 g/10 min as measured under a load of 21.2 N at 190° C.; and 0.1 to 20 parts by weight of a phyllosilicate containing a primary, secondary or tertiary amine salt, a quaternary ammonium salt or a phosphonium salt ionically bonded between layers thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.