Telechelic alkadiene polymers with crosslinkable end groups and methods for making the same
US6867274B2 · kind B2 · utility
8Cited by
4References
7Claims
0Family size
Assignee
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Key dates
| Filing date | May 21, 2002 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | May 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to telechelic polymers having crosslinkable end groups of the formula and methods for preparing the same wherein n is an integer; is an alkadienyl group; Y is an alkyl group; and Z is crosslinkable end group. In general, the inventive synthesis involves reacting a functionalized chain transfer agent having crosslinkable ends with a cycloalkene in the presence of a ruthenium or osmium catalyst of the formula wherein:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.