Composition comprising a cross-linked polymer network, prepared by radical copolymerisation, comprising pending links and cross-links exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions, preparation process and use
US10584190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2016 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Dec 19, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F212/34
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a composition including a network of cross-linked polymers. The network is prepared by one of the following radical copolymerisations. First, there is copolymerization of monomers, polymer of interest precursors, the monomers carrying at least one functional group that is polymerisable by radical polymerization. Second, there is copolymerization of monomers comprising at least one pending imine group and carrying at least one functional group that is polymerisable by radical polymerisation; and/or monomers comprising at least one pending aldehyde group and carrying at least one functional group that is polymerisable by radical polymerization. Third, there is a copolymerization of a cross-linking agent comprising aldehyde and/or imine groups enabling the formation of a cross-linked polymer network containing pending functions and cross-links that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.