Polylactide resin having excellent heat resistance and preparation method thereof
US9115248B2 · kind B2 · utility
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6References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 19, 2014 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Mar 19, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G63/823
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a polylactide resin having excellent heat resistance, a preparation method thereof, and a polylactide resin composition including the same.The polylactide resin is characterized by high polymerization activity owing to an organic coordinated metal catalyst even though it has a low catalyst content, and a molecular weight reduction due to thermal decomposition at high temperature and a rate of thermal decomposition including depolymerization are greatly suppressed by a low catalyst content and a low resin acidity, and thus provided is the polylactide resin having superior heat resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.