Branched vinyl terminated polymers and methods for production thereof
US8623974B2 · kind B2 · utility
22Cited by
59References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2012 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Mar 5, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of the monomer to polyolefin; and (iii) obtaining a branched polyolefin having greater than 50% allyl chain ends, relative to total unsaturated chain ends. The invention also relates to the branched polyolefins and functionalized branched polyolefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.