Multi-block copolymers
US11236197B2 · kind B2 · utility
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10References
18Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 12, 2016 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Aug 12, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2390/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a multi-block copolymer comprising at least blocks A-B-A or B-A-B, wherein block A comprises a polyester formed by polymerisation of a lactone and/or a lactide; and block B comprises a copolyester formed by polymerisation of an epoxide and an anhydride, or a polycarbonate formed by polymerisation of an epoxide and carbon dioxide, and methods of production thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.