| Patent Number |
Title Of Patent |
Date Issued |
| 4743652 |
Elastomeric copolymer of aromatic vinyl compounds and butadiene |
May 10, 1988 |
| An elastomeric copolymer of an aromatic vinyl compound and butadiene prepared by a solution polymerization method, which has a glass transition temperature of not less than -50.degree. C. and contains polymer chains modified with a trifunctional or tetrafunctional coupling agent, and whi |
| 4537936 |
Diene rubber composition, method of preparing the same and tire employing said composition |
August 27, 1985 |
| A diene rubber composition comprising 25 to 90 parts by weight of at least one high molecular weight diene rubber (A) having an intrinsic viscosity [.eta.] of at least 2.0 and a glass transition point of not lower than -50.degree. C. and 75 to 10 parts by weight of at least one low molec |
| 4523618 |
Branched polymer, process for the preparation thereof, tire tread rubber composition and tire |
June 18, 1985 |
| A branched polymer which is a butadiene homopolymer or a copolymer of an aromatic vinyl compound and butadiene and has a glass transition temperature of not less than -50.degree. C. and of which at least 70% by weight of the polymer chains has a branched structure in which high molec |
| 4521587 |
Composition for tread rubber of tires |
June 4, 1985 |
| A composition for tread rubber of tires containing a synthetic isoprene rubber having a 3,4-bonding content of at least 15% by mole and an intrinsic viscosity of at least 2.0 in toluene at 30.degree. C. The composition can provide a rubber having an improved frictional characteristic |
| 4482678 |
Diene rubber composition and tire using it in tread |
November 13, 1984 |
| A diene rubber composition comprising as a main rubber component an elastomeric polymer having a glass transition temperature of not less than -50.degree. C. selected from the group consisting of a butadiene homopolymer and a copolymer of butadiene and an aromatic vinyl compound, sai |
| 4471093 |
Elastomer composition comprising a blend of SBR rubbers |
September 11, 1984 |
| A rubber composition having improved rolling resistance and wet grip characteristics with improved processability, abrasion resistance and durability which contains as a rubber component a mixture of a high molecular weight styrene-butadiene rubber having a specific microstructure an |
| 4436873 |
Conjugated diene block polymer and process for preparing the same |
March 13, 1984 |
| A conjugated diene block polymer composed of blocks having a different microstructure from each other such that one block contains 20 to 60% by mole of 1,2- and/or 3,4-bonding, the other block contains 50 to 90% by mole of 1,2- and/or 3,4-bonding, the difference in the 1,2- and/or 3, |
| 4385151 |
Composition containing isoprene polymer |
May 24, 1983 |
| A rubber composition containing an isoprene homopolymer or copolymer having a glass transition temperature of not less than -50.degree. C. and a Mooney viscosity of 20 to 120. The composition can provide a cured rubber having a high wet road gripping force and a small dynamic heat genera |
