Control of polymer architecture and molecular weight distribution via multi-centered shuttling agent
US7947787B2 · kind B2 · utility
3Cited by
123References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 14, 2006 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Oct 4, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2314/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the polymerization of one or more addition polymerizable monomers and the resulting polymer composition, said process comprising contacting an addition polymerizable monomer or mixture of monomers in a reactor or reactor zone with a composition comprising at least one polymerization catalyst and a cocatalyst under polymerization conditions, characterized in that at least a portion of said polymerization is conducted in the presence of a multi-centered shuttling agent thereby causing the composition to have a bimodal molecular weight distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.