Process for producing modified polymer modified polymer obtained by the process and rubber composition
US7288594B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2002 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Feb 24, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Provided is a process for producing a modified polymer, characterized by carrying out primary modification in which a hydrocarbyloxysilane compound is reacted with the active site of a polymer having an active site of an organic metal type in a molecule and then carrying out secondary modification in which the hydrocarbyloxysilane compound is further reacted therewith. This makes it possible to provide a modified polymer which enhances interactions with silica and carbon black when used for both of silica-blended and carbon black-blended rubber compositions and which elevates the fracture characteristic, the abrasion resistance and the low heat buildup property at the same time and can exhibit a good workability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.