Long-chain branched polymers and production processes
US10266619B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2017 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Feb 8, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G83/005
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a process for forming a long-chain branched polymer and a long-chain branched polymer resulting from the process. The process comprises reacting (a) a polyolefin base polymer with (b) a coupling agent comprising a polymeric coupling agent, optionally blended with a molecular coupling agent, the polymeric coupling agent being a modified polyolefin having a reactive coupling group at one or more terminal ends of the modified polyolefin chain, to couple the polyolefin base polymer (a) with the coupling agent (b) to form a long-chain branched polymer having a long-chain branching and/or higher surface energy relative to the polyolefin base polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.