Process of controlled radical grafting of a polyolefin
US7544743B2 · kind B2 · utility
9Cited by
4References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Dec 1, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a controlled radical grafting process of a polyolefin derived from monomeric units including α-olefins. This process comprises the reaction of the polyolefin and at least one radical reaction initiator with a grafting system which comprises at least one grafting compound having an electron donator heterocyclic aromatic ring conjugated to at least one —HC═CR1R2 group in which at least one of R1 and R2 is an electron acceptor functional group. The process can be performed continuously in an extruder or discontinuously in a mechanical mixer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.