Injection molded article, production method thereof and pellets used for injection molded article
US7682548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Mar 20, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L97/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
To provide injection molded articles that are formed from plant-derived materials as main components and have heat resistance and high crystallization rates.The injection molded article of the present invention includes a resin composition containing: (A) a lactic acid based resin; and (B) a natural fiber that contains 40 mass % to 60 mass % of cellulose, 10 mass % to 30 mass % of lignin, wherein the resin composition contains the lactic acid based resin (A) and the natural fiber (B) in a mass ratio of 99:1 to 70:30, and the lactic acid based resin (A) has a resin composition ratio of L-lactic acid:D-lactic acid=100:0 to 97:3, or L-lactic acid:D-lactic acid=0:100 to 3:97.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.