Process of producing polylactic acid
US8163849B2 · kind B2 · utility
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1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2008 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Feb 6, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
It is an object of the present invention to produce a polylactic acid having a high molecular weight such as a weight average molecular weight (Mw) of more than 100,000 from which only a stereocomplex crystal is grown even by repeating melting and crystallization. The present invention is a process of producing a polylactic acid, including the steps of:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.