Biodegradable molded article and container using the molded article
US8273428B2 · kind B2 · utility
0Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2009 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | May 26, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A biodegradable molded article and a container using the molded article, exhibiting heat resistant properties. The molded article is obtained by injection molding a polylactic acid resin, wherein the polylactic acid resin of the molded article contains less than 4 mol % of D-lactic acid. The molded article has a crystallized portion having a ratio of the crystallizing heat quantity to the melting heat quantity (|ΔHC|/|Hm), which ratio is not more than 0.7 in a differential scanning calorimetry (DSC) curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.