| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 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 |
| 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 |
| 4361677 |
Curable composition for hard rubber and the use thereof |
November 30, 1982 |
| A curable composition comprising (1) at least one rubber selected from the group consisting of natural rubber, a diene rubber and a diene copolymer rubber, (2) a sulfide resin as a curing agent having the following general formula: ##STR1## wherein X is methylene group, ethylene |
| 4285381 |
Curable composition for hard rubber and the use thereof |
August 25, 1981 |
| A curable composition comprising (1) at least one rubber selected from the group consisting of natural rubber, a diene rubber and a diene copolymer rubber, (2) a sulfide resin as a curing agent having the following general formula: ##STR1## wherein X is methylene group, ethylene |
