Tactic polymer polymerization process using chiral catalysts
US8148482B2 · kind B2 · utility
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Key dates
| Filing date | May 1, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Aug 4, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F110/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for forming tactic polymers employing at least one olefin polymerization catalyst comprising a non-racemic mixture of the R- and S-enantiomers of a metal complex containing at least one asymmetrically substituted (chiral) carbon atom, and a chain shuttling agent, a polar aprotic organic compound, or both a chain shuttling agent and a polar aprotic organic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.