Aliphatic polyester resin composition, preparation method thereof, and molded article and foamed article produced from the resin composition
US7351772B2 · kind B2 · utility
11Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2004 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Sep 26, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2230/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aliphatic polyester resin composition is provided which is excellent in heat resistance, moldability and hydrolysis resistance. The aliphatic polyester resin composition comprises a biodegradable polyester resin (A) essentially including an α- and/or β-hydroxycarboxylic acid unit and crosslinked by at least one crosslinking agent (B) selected from the group consisting of (meth)acrylate compounds and polyvalent isocyanate compounds, wherein some or all of carboxyl groups of the resin (A) are blocked by 0.01 to 20 parts by mass of a terminal blocking agent (C) based on 100 parts by mass of the resin (A).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.