Grafted polymer bearing pendent cyclic carbonate functional groups
US12091540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2019 |
| Grant date | Sep 17, 2024 |
| Priority date | — |
| Expiry date | May 3, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F279/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A modified polymer is obtained by grafting at least one compound of formula (I) to at least one unsaturation of the chain of an initial polymer in which Q represents a dipole comprising at least one nitrogen atom; A represents an arenediyl ring, optionally substituted by one or more hydrocarbon-based chains, which are identical or different, independent of one another, and are optionally substituted or interrupted by one or more heteroatoms; E represents a divalent hydrocarbon-based bonding group which may optionally contain one or more heteroatoms; R1, R2 and R3 represent, independently of one another, a hydrogen atom or a hydrocarbon-based chain which is optionally substituted or interrupted by one or more heteroatoms; and n is an integer having a value greater than or equal to 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.