Resin composition and molded articles thereof
US5916950A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Jul 17, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A thermal resistant resin composition comprising 100 parts by weight of polyester (A) having 25-75% by weight of a lactic acid component consisting of 25-75% by weight of a lactic acid-based polymer (a1) and 25-75% by weight of other aliphatic polyester (a2) having a melting point of 100-250.degree. C., and 0.1-70 parts by weight of a crystalline inorganic filler (B) containing 10% by weight or more of SiO.sub.2. The thermal resistant resin composition of the invention performs following function: 1) injection molding can be carried out at a mold temperature of Tg or less or around room temperature with a short molding-cycle, 2) quick crystallization velocity and satisfactory crystallinity can be attained in the molding step, and 3) the molded articles have, as a result, excellent thermal resistance and generate properties of low deterioration of a high polymer component and slow embrittlement in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.