Polysiloxane-polylactide block copolymer and preparation method thereof
US8759477B2 · kind B2 · utility
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Key dates
| Filing date | Jul 26, 2013 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2261/126
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a polysiloxane-polylactide block copolymer and a preparation method thereof, in which the polysiloxane-polylactide block copolymer has improved impact resistance and flexibility, compared to the conventional polylactide resins and can be prepared by ring-opening polymerization of lactide monomers in the presence of a polymerization initiator of polysiloxane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.