High cis diene/phenylbutadiene copolymers prepared using a Ziegler/Natta neodymium catalyst
US8598286B1 · kind B1 · utility
7Cited by
16References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2012 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Nov 5, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L15/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a polymer comprising repeat units derived from 1,3-butadiene and a substituted butadiene of formula I or IIwherein R is hydrogen, an alkyl group, aryl group, or a fused cyclic group; andwherein at least 95 percent by weight of the repeat units have a cis-1, 4 microstructure. The invention is further directed to a rubber composition and pneumatic tire comprising the polymer, and a method for making the polymer using a neodymium catalyst system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.