Expandable polylactic acid resin particles, expanded polylactic acid resin beads and molded article obtained from expanded polylactic acid resin beads
US7863343B2 · kind B2 · utility
6Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2006 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Jun 14, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2491/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Expandable polylactic acid resin particles including (a) a base resin containing a polylactic acid resin having at least 50 mol % of lactic acid monomer component units, (b) a polyolefin wax in an amount of 0.0001 to 1 part by weight per 100 parts by weight of the base resin, and (c) a blowing agent in an amount of 1 to 30% by weight based on the weight of the resin particles. The expandable resin particles can give expanded beads having an average cell diameter of 10 to 500 μm. The expanded beads can give in-mold foam moldings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.