Preparation of hydrophilic polymers of high mass by controlled radical polymerization
US9975980B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Sep 27, 2011 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Aug 21, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2400/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention concerns a process for preparing a polymer comprising at least one gel polymerization step (E) in which the following are contacted:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.