公开(公告)号：US20020016391A1

公开(公告)日：2002-02-07

申请号：US09859488

申请日：2001-05-18

Applicant: THE YOKOHAMA RUBBER CO., LTD.

Inventor： Keisuke Chino ,  Naoshi Miyashita ,  Makoto Ashiura ,  Tetsuji Kawazura

IPC: C08K005/23 ,  C08K005/29

CPC classification number: C08K5/32 ,  B60C1/00 ,  C08K5/3435 ,  C08L21/00

Abstract: A viscoelasticity improving agent for rubber obtained by reacting an alkyllithium compound with a free radical compound having an isocyanate group in the molecule thereof and existing stably at room temperature in the presence of oxygen and a rubber composition.

Abstract translation: 一种烷基锂化合物与分子中具有异氰酸酯基团的自由基化合物反应并在室温下在氧气和橡胶组合物存在下稳定存在的橡胶制粘弹性改进剂。

公开(公告)号：US20040119190A1

公开(公告)日：2004-06-24

申请号：US10725058

申请日：2003-12-02

Applicant: The Yokohama Rubber Co., Ltd

Inventor： Masayuki Kawazoe ,  Tetsuji Kawazura

IPC: C08J005/00

CPC classification number: C09C1/58 ,  C01P2004/64 ,  C08J3/22 ,  C08J2321/00 ,  C08K3/04 ,  C08K3/36 ,  C08K9/02 ,  C08K9/08 ,  C09C1/56 ,  C08L21/02 ,  C08L21/00

Abstract: A process for production of a modified carbon black, at a cheaper cost, for rubber reinforcement having the superior tan null temperature dependency of silica and an excellent abrasion resistance and further having no problems arising due to a low electrical conductivity is provided. In the process for production of a modified carbon black for rubber reinforcement wherein, in the step of granulating the carbon black, a water-dispersed silica is added to the carbon black, the granulating is performed by a granulator and a process of production of a rubber composition containing a surface-treated carbon black for rubber reinforcement comprising coagulating, with a coagulating agent, a mixture of (a) 100 parts by weight, as a solid content, of a diene rubber component and (b) 10 to 250 parts by weight, as a solid content, of a slurry containing a carbon black for rubber reinforcement or (bnull) 10 to 250 parts by weight of a modified carbon black produced by the above method.

Abstract translation: 提供了一种以较便宜的成本生产具有优异的二氧化钛的tanδ温度依赖性和优异的耐磨性并且由于低导电性而没有出现问题的橡胶增强剂的改性炭黑的制造方法。 在制造橡胶增强改性炭黑的方法中，在将炭黑制粒的工序中，向炭黑中添加水分散二氧化硅，造粒是通过造粒机进行的， 含有用于橡胶增强剂的表面处理炭黑的橡胶组合物，包括用凝结剂凝结（a）作为固体含量的（a）100重量份的二烯橡胶组分和（b）10至250重量份的混合物 重量为固体含量的含有用于橡胶增强剂的炭黑的浆料或（b'）通过上述方法制备的10至250重量份的改性炭黑。

公开(公告)号：US20030125461A1

公开(公告)日：2003-07-03

申请号：US10335922

申请日：2003-01-03

Applicant: The Yokohama Rubber Co., Ltd.

Inventor： Tetsuji Kawazura ,  Masayuki Kawazoe ,  Masao Nakamura

IPC: C08L053/00

CPC classification number: C08L9/06 ,  B60C1/00 ,  B60C1/0016 ,  B60C1/0025 ,  C08L7/00 ,  C08L9/00 ,  C08L21/00 ,  C08L53/02 ,  C08L2666/02 ,  C08L2666/04

Abstract: A rubber composition comprising (i) an incompatible polymer blend of at least two diene rubbers selected from rubbers containing a conjugated diene and, optionally, an aromatic vinyl monomer and forming two polymer phases (A) and (B), and (ii) 0.1 to 20 parts by weight, based upon 100 parts by weight of the total polymer component including the block copolymer, of a block copolymer having at least two mutually incompatible blocks (a) and (b), wherein the block (a) is compatible with the polymer phase (A) and incompatible with the polymer phase (B) and the block (b) is compatible with the polymer phase (B) and incompatible with the polymer phase (A), and composed of a conjugated diene and, optionally, an aromatic vinyl monomer, and wherein the molecular weights of the polymers forming the polymer phases (A) and (B) satisfy the specified equations (I) and (II) mentioned in the specification.

公开(公告)号：US20020022700A1

公开(公告)日：2002-02-21

申请号：US09883239

申请日：2001-06-19

Applicant: THE YOKOHAMA RUBBER CO., LTD.

Inventor： Keisuke Chino ,  Makoto Ashiura ,  Tetsuji Kawazura ,  Masahiro Ikawa

IPC: C08L11/08 ,  C08K003/10

CPC classification number: C08F8/30 ,  C08F210/00

Abstract: A thermoplastic polymer having a carbonyl-containing group and a nitrogen-containing 5-membered heterocycle-containing group in side chains, and a composition thereof. The thermoplastic polymer and composition thereof have excellent recycle property in that physical properties do not deteriorate even though formation of crosslinking and dissociation of crosslinking are repeatedly conducted with altering temperature. The thermoplastic polymer and composition thereof are that its crosslinked structure is considerably stable at room temperature, and therefore have considerably high tensile strength. In particular, in the case of bonding to a main chain at 3-position or 4-position of a nitrogen-containing 5-membered heterocycle, intermolecular hydrogen bond is caused, so that a cured product has high mechanical properties.

Abstract translation: 具有含羰基的热塑性聚合物和侧链中含有含氮5元杂环的基团及其组合物。 热塑性聚合物及其组合物具有优异的循环性能，即使交联的交联和交联的解离反应在改变温度下进行物理性能也不会劣化。 热塑性聚合物及其组合物是其交联结构在室温下相当稳定，因此具有相当高的拉伸强度。 特别地，在与含氮5元杂环的3-位或4-位的主链键合的情况下，引起分子间氢键，使得固化物具有高的机械性能。