| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 07.99 |
| PATENT ASSIGNEE | Sumitomo Rubber Industries |
| PATENT CLAIMS |
- Organosiloxane-modified diene polymer (100 parts) - Silica (30-90 parts) - Bis-((triethoxy)silylpropyl)tetrasulfide coupler (5-15% rel. to silica) Wherein said organosiloxane-modified diene polymer is obtained by - Polymn diene monomer by use of alkali metal-contg polymn initiator in hydrocarbon solvent to give diene poly mer having alkali metal-contg active end (I) - Reacting (I) with an organosiloxane having functional group selected from: epoxy, alkoxyl, carbonyl, vinyl, Cl, Br & I - |
| PATENT PHOTOCOPY | Available on request |
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