公开(公告)号：EP0919580A4

公开(公告)日：1999-09-08

申请号：EP97927441

申请日：1997-06-24

申请人： YOKOHAMA RUBBER CO LTD ,  NIPPON ZEON CO

发明人： KAWAZURA TETSUJI ,  KAWAZOE MASAYUKI ,  KIKUCHI YASUSHI ,  NAKAMURA TORU ,  NAKAMURA MASAO ,  KARATO TAKESHI

IPC分类号： B60C1/00 ,  C08F297/04 ,  C08K3/04 ,  C08L9/00 ,  C08L9/06 ,  C08L21/00 ,  C08L53/02

CPC分类号： C08L9/00 ,  B60C1/00 ,  B60C1/0016 ,  C08F297/04 ,  C08K3/04 ,  C08L9/06 ,  C08L21/00 ,  C08L53/02 ,  Y10S152/905 ,  C08L2666/02 ,  C08L2666/24

摘要： A block copolymer (1) comprising a block of a conjugated diene polymer and a block of a random copolymer of a conjugated diene with an aromatic vinyl, (2) having a weight ratio of the polymer block A to the copolymer B of (5 : 95) to (95 : 5), (3) having a content of the bound aromatic vinyl in the copolymer block B of 1 to 50 % by weight, (4) having a weight-average molecular weight (Mw) of 100,000 to 5,000,000, and (5) having at least two transition points present in the range of from -150 to +150 °C as measured with a differential scanning calorimeter, a process for preparing the same, a rubber composition comprising the same, and a pneumatic tire made therefrom.

摘要翻译： 含有共轭二烯的聚合物嵌段A和共轭二烯和芳族乙烯基化合物的无规共聚物嵌段B的嵌段共聚物（1），（2）聚合物嵌段A的重量比（A:B）和共聚物 嵌段B为5:95〜95:5，（3）在共聚物嵌段B中结合的芳香族乙烯基化合物含量为1〜50重量％，（4）重均分子量（Mw）为100,000〜 ，和（5）在-150℃至+ 150℃范围内通过差示扫描量热法测量的至少两个转变点，其制备方法，以及含有该转化点的橡胶组合物和充气轮胎。

公开(公告)号：EP1188789A4

公开(公告)日：2003-01-02

申请号：EP00913026

申请日：2000-03-31

申请人： NIPPON ZEON CO

发明人： KARATO TAKESHI

IPC分类号： B60C1/00 ,  C08J3/24 ,  C08K5/01 ,  C08L9/00 ,  C08C4/00 ,  C08K3/04 ,  C08K3/36 ,  C08L9/06 ,  C08L19/00 ,  C08L91/00

CPC分类号： C08K5/01 ,  C08L21/00

摘要： An oil-extended rubber comprising 100 parts by weight of a rubber ingredient comprising a conjugated diene rubber in which the ratio of the weight-average molecular weight (Mw) to the number-average molecular weight (Mn), (Mw/Mn), is 1.2 to 2.2 and the conjugated diene monomer units have a vinyl bond unit content of 20% or higher and 5 to 100 parts by weight of a process oil having a total acid value of 1.0 mg-KOH/g or higher, a pour point of 50°C or lower, and an aromatic-carbon content of 20% or higher; and a rubber composition comprising 100 parts by weight of the rubber ingredient, 5 to 100 parts by weight of the process oil, and 10 to 200 parts by weight of a reinforcement. This rubber composition gives a crosslinked object which is excellent in tensile strength and wearing resistance, is reduced in heat buildup, and is useful as an automotive tire material, etc.

摘要翻译： 的充油橡胶含有橡胶成分100重量份包含共轭二烯橡胶worin比例重均分子量之比（Mw / Mn）为（Mw）与数均分子量（Mn）为1.2〜2.2的范围内 ，和共轭二烯单体单元具有至少20％的乙烯基键单元含量，和具有不超过1.0毫克KOH /克大的总酸值的加工油的5〜100重量份，倾不高于点 50℃，并在至少20％的芳族碳含量。 一种橡胶组合物，其包括上述的橡胶成分100重量份，操作油的5-100份（重量）和增强剂的10〜200重量份。 该橡胶组合物得到具有高拉伸强度，高耐磨损性和降低的生热性的交联制品，并且是有用的，例如，如在汽车轮胎的材料。