发明名称 |
Thioester modified polymer, method of manufacturing the same and rubber composition containing the same |
摘要 |
Provided is a thioester modified polymer, wherein a polymer having an intramolecular double bond is modified with at least one of thiocarboxylic acid and dithiocarboxylic acid. The above thioester modified polymer can be manufactured by allowing a polymer having an intramolecular double bond to react with thiocarboxylic acid, dithiocarboxylic acid or a metal salt thereof, and used to be compounded in a diene-based rubber. When this thioester modified polymer is compounded in a diene-based rubber, in particular a silica containing diene-based rubber, tensile strength and breaking elongation, in particular tensile strength and breaking elongation at a high temperature (100° C.), can be improved without decreasing modulus, hardness, exothermicity and the like. Therefore, the rubber composition having excellent thermal resistance and toughness can be effectively used as a rubber compound for forming a cap tread or a side tread of a pneumatic tire. |
申请公布号 |
US9469158(B2) |
申请公布日期 |
2016.10.18 |
申请号 |
US201314650067 |
申请日期 |
2013.12.06 |
申请人 |
The Yokohama Rubber Co., Ltd. |
发明人 |
Tanabe Yasuke |
分类号 |
B60C1/00;C08C19/20;C08K5/54;C08L9/00;C08L15/00 |
主分类号 |
B60C1/00 |
代理机构 |
Brinks Gilson & Lione |
代理人 |
Brinks Gilson & Lione |
主权项 |
1. A thioester modified polymer, wherein a liquid or solid polyisoprene, polybutadiene, polystyrene-butadiene, butyl rubber, EPDM or natural rubber is modified only with thioester groups using thiocarboxylic acid. |
地址 |
Tokyo JP |