Polymerization catalyst composition, polymer manufacturing method, polymer, rubber composition, and tire
US11472907B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2018 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Apr 13, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F232/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
To provide a catalyst composition having high polymerization activity. To provide a polymer manufacturing method. To provide a polymer manufactured by the polymer manufacturing method. To provide a rubber composition including the polymer. To provide a tire using the rubber composition. A catalyst composition including a compound represented by Structural Formula I below, wherein the compound has an OH group at at least one position of the bipyridyl ring; M is a transition metal, a lanthanoid, scandium, or yttrium; R1 and R2 are a hydrocarbon group having one or more carbon atoms or a halogen atom; and R1 and R2 may be the same or different from each other. A polymer manufacturing method including a step of polymerizing one or more selected from the group consisting of a conjugated diene compound and a compound having an ethylenically unsaturated double bond in the presence of the catalyst composition. A polymer manufactured by the manufacturing method. A rubber composition including the polymer. A tire using the rubber composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.