One-step, one-pot process for preparing multiblock and gradient copolymer
US9493606B2 · kind B2 · utility
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4References
19Claims
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Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/30
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to the field of tailored di-, tri- and multi-block as well as gradient polyesters/polycarbonates copolymers prepared by introducing monomers simultaneously in the reaction medium in the presence of an organometallic, metal salt or organic catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.