Process for producing poly (cyclic conjugated diene)
US6426396B2 · kind B2 · utility
3Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 6, 1999 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | May 6, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G61/12
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Poly(cyclic conjugated diene) polymers are prepared by polymerizing a cyclic conjugated diene monomer or cyclic conjugated diene monomer and a double bond-containing monomer using a transition metal catalyst, preferably a Ni-based catalyst, in a non-polar solvent containing a basic compound or an aromatic halide solvent. The poly(cyclic conjugated diene) polymer may then be subsequently modified by reaction of at least one of the double bonds of the polymer with a modifying substance, for example hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.