Process for the preparation of polyolefin-based graft copolymers comprising a first long chain branched polyolefin block and one or multiple polymer side chains
US10717826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2016 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Feb 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/50
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the preparation of polyolefin-based graft copolymers comprising a first long chain branched polyolefin block and one or multiple polymer side chains. The functionalized long chain branched polyolefin is produced via the copolymerization of an olefin monomer and an olefin bearing a main group metal hydrocarbyl functionality. The invention moreover relates to polyolefin obtained by said process ends. Subsequently the graft copolymers according to the invention can be produced for example by ring-opening polymerization of cyclic monomers or by transesterification of a preformed transesterifiable polymer, especially polyesters or polycarbonates. The invention moreover relates to polyolefin-based graft copolymers obtained by said process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.