公开(公告)号：JPH08225604A

公开(公告)日：1996-09-03

申请号：JP34846495

申请日：1995-12-18

Applicant: BRIDGESTONE CORP

Inventor： KITAMURA TAKASHI ,  DEIBITSUDO EFU ROOSON ,  MORITA KOICHI ,  OZAWA YOICHI

IPC: C08F4/48 ,  B60C1/00 ,  C08F4/00 ,  C08F4/08 ,  C08F4/42 ,  C08F36/04 ,  C08F236/10 ,  C08K3/04 ,  C08L21/00

Abstract: PURPOSE: To obtain a hydrocarbon-soluble anionic polymerization initiator which can polymerize monomers to give a polymer improved in hysteresis, tear strength and abrasion resistance by mixing a lithioamine with an organic alkali metal compound. CONSTITUTION: The polymerization initiator containing a mixture comprising a lithioamine (i) represented by formula I, an organic alkali metal compound (ii) and optionally a chelating agent (iii). In the formulas, y is 0 or about 0.5 to about 3; SOL is a hydrocarbon group, an ether group or an amine group; A is a dialkyl-, alkyl-, cycloalkyl- or dicycloalkylamine group represented by formula II or a cyclic amine group represented by formula III (wherein R1 is a 1-12C alkyl, cycloalky or aralkyl; and R2 is a bivalent alkylene, bicycloalkane, substituted alkylene, oxy- or N-alkylaminoalkylene each of which has about 3 to about 16 methylene groups.

公开(公告)号：JPH06199923A

公开(公告)日：1994-07-19

申请号：JP28215793

申请日：1993-10-18

Applicant: BRIDGESTONE CORP

Inventor： KITAMURA TAKASHI ,  DEIBITSUDO EFU ROOSON ,  MORITA KOICHI ,  OZAWA YOICHI

IPC: C08K3/04 ,  B60C1/00 ,  C08F4/00 ,  C08F4/42 ,  C08F4/48 ,  C08F36/04 ,  C08F236/10 ,  C08L21/00

Abstract: PURPOSE:To obtain the subject initiator useful for producing a diene (co) polymer, soluble in a hydrocarbon, providing a polymer having a narrow molecular weight in good reproducibility, comprising a mixture of a specific lithioamine and an organic alkali metal compound. CONSTITUTION:The objective initiator comprises a mixture of a lithioamine of the formula (A)Li(SOL)y [y is 0 or 0.5-3; SOL is soluble component selected from hydrocarbon, ethers, etc. ; A is (di)alkyl or (di)cycloalkylamine group of formula I (R1 is 1-12C alkyl, cycloalkyl, etc.) or cyclic amine group of formula II (R2 is 3-12 methylene-containing bifunctional alkylene, oxyalkylene, etc.), an organic alkali metal compound and optionally a chelating agent. The lithioamine is preferably obtained by reacting a functioning agent composed of an amine containing a group of formula I or formula II with an organolithium compound of the formula RLi (R is 1-20C alkyl, alkenyl, etc.) in the presence of a SOL such as hexane.

公开(公告)号：JPH04356548A

公开(公告)日：1992-12-10

申请号：JP23683091

申请日：1991-08-26

Applicant: BRIDGESTONE CORP

Inventor： NOGUCHI NAONOBU ,  MORITA KOICHI ,  TERATANI HIROYUKI

IPC: C08K5/21 ,  C08K5/20 ,  C08L21/00

Abstract: PURPOSE:To obtain a rubber composition which does undergo deterioration of the grip even when the temperature raises, also does not undergo the failure resistance and abrasion resistance even when a urea compound is added thereto in a large amount, and the rubber properties by adding a urea compound to a rubber. CONSTITUTION:A rubber composition is obtained by adding at least one compound of formula I (wherein R1 is alkyl, benzyl or aryl; R2 is alkyl, benzyl, aryl or urea) [e.g. a compound of formula II, III, IV or V) (wherein (n) is 6)] to 100 pts.wt. rubber comprising a natural rubber and/or a synthetic rubber. Because the obtained rubber composition contains the above compound, it does not undergo deterioration of the grip even when the temperature raises, the failure resistance and abrasion resistance even when the compound is added in a large amount and the performances of the rubber itself, and can be applied to various rubber products such as tires, vibrationproof rubbers and fenders.

公开(公告)号：JPH01118549A

公开(公告)日：1989-05-11

申请号：JP27583387

申请日：1987-11-02

Applicant: BRIDGESTONE CORP

Inventor： KINOSHITA TAKESHI ,  MORITA KOICHI ,  KUMAMOTO YOSHIYUKI

IPC: C08K5/56 ,  C08K5/00 ,  C08K5/04 ,  C08L21/00

Abstract: PURPOSE:To obtain a rubber composition remarkably improved in both initial adhesion and heat-resistant adhesion and suitable for bonding, especially, steel cord, by adding a specified amount of a specified cobalt oxyketone complex to a rubber. CONSTITUTION:A rubber composition is prepared by adding 0.01-1pt.wt. (in terms of the Co content) at least one cobalt oxyketone complex of the formula (wherein R1-R10 are each H, a 1-18C alkyl, a 5-12C cycloalkyl, a 6-14C aryl, a 6-14C aryl-1-4C alkyl, a 1-18C alkoxy, a 5-12C cycloalkoxy, a 6-14C aryloxy, a 6-14C aryl-1-4C alkoxy, a halogen or a 2-18C hydrocarbyl group containing at least one double bond) to 100pts.wt. rubber composition. This rubber composition is remarkably improved in both initial adhesion and heat-resistant adhesion, and is very useful as, especially, a rubber for bonding steel cord.

公开(公告)号：JPS63286445A

公开(公告)日：1988-11-24

申请号：JP12131287

申请日：1987-05-20

Applicant: BRIDGESTONE CORP

Inventor： KONDO HITOSHI ,  MAEDA SHU ,  MORITA KOICHI

IPC: C08K5/34 ,  C08L7/00 ,  C08L21/00

Abstract: PURPOSE:To obtain the titled composition significantly improved in grip performance and heat and crack propagation resistances, by incorporating natural and/or synthetic rubber(s) with sulfur as the curing agent and a specific bismaleimide compound. CONSTITUTION:The objective composition can be obtained by incorporating (A) 100pts.wt. of natural and/or synthetic rubber(s) with (B) 0.2-6pts.wt. of sulfur as the curing agent and (C) 0.1-10pts.wt. of a bismaleimide compound of formula I (R is of formula II or straight chain hydrocarbon which may have side chain containing at least one ether linkage; n is >=7) (e.g., N,N'-4,7- dioxadecane-1,10-bismaleimide) and furthermore, if needed, (D) filler such as carbon black, softening agent, curing agent, curing accelerator, deteriorationproof agent, etc.

公开(公告)号：JP2014169448A

公开(公告)日：2014-09-18

申请号：JP2014093719

申请日：2014-04-30

Applicant: Bridgestone Corp ,  株式会社ブリヂストン ,  Jsr Corp ,  Jsr株式会社

Inventor： OZAWA YOICHI ,  MILLER JERROLD H ,  MAZAKI KOJI ,  MORITA KOICHI ,  FUJIMAKI TATSUO ,  OMURA TETSUYA ,  SONE TAKAO ,  HATTORI IWAKAZU

IPC: C08F8/00 ,  C08F4/54 ,  C08F4/606 ,  C08F36/04 ,  C08K3/00 ,  C08L15/00

Abstract: PROBLEM TO BE SOLVED: To provide a functionalized polymer produced by bringing a functionalizing agent into contact with a quasi-living polymer, and to provide a functionalization method of such kind of polymer.SOLUTION: A functionalized polymer is generated by using a method including a step to generate a quasi-living polymer by using a lanthanide-based catalyst and polymerizing a conjugated monomer, and to make the quasi-living polymer react with a functionalizing agent defined by formula (I) [here, Ris a divalent 0-20C organic group; A is a substituent which may produce an addition reaction with the quasi-living polymer; Z is a substituent which may react or interact with silica or carbon black which is a reinforcing filler; provided that A, Rand Z are substituents which may not protonate the quasi-living polymer].

Abstract translation: 要解决的问题：提供通过使官能化试剂与准活性聚合物接触而制备的官能化聚合物，并提供这种聚合物的官能化方法。溶液：通过使用包括以下的方法生成官能化聚合物： 通过使用镧系元素类催化剂和共轭单体聚合生成准活性聚合物的步骤，使准活性聚合物与式（I）所定义的官能化试剂反应[这里，R是二价0-20C有机物 组; A是可能与准活性聚合物产生加成反应的取代基; Z是可与作为增强填料的二氧化硅或炭黑反应或相互作用的取代基; 条件是A，Rand Z是可能不质子化准活性聚合物的取代基]。

公开(公告)号：JP2012097271A

公开(公告)日：2012-05-24

申请号：JP2011283355

申请日：2011-12-26

Applicant: Bridgestone Corp ,  Jsr Corp ,  Jsr株式会社 ,  株式会社ブリヂストン

Inventor： OZAWA YOICHI ,  MILLER JERROLD H ,  MAZAKI KOJI ,  MORITA KOICHI ,  FUJIMAKI TATSUO ,  OMURA TETSUYA ,  SONE TAKAO ,  HATTORI IWAKAZU

IPC: C08F8/30 ,  C08K3/00 ,  C08L9/00

Abstract: PROBLEM TO BE SOLVED: To provide a functionalized polymer that reacts with a polymer prepared with a coordination catalyst to have a high cis microstructure and an affinity toward carbon black and silica.SOLUTION: The functionalized polymer is prepared by a process including the steps of preparing a pseudo-living polymer by polymerizing a conjugated monomer using a lanthanide-based catalyst, and reacting the pseudo-living polymer with a functionalizing agent defined by formula A-R1-Z, where Ris a divalent organic group containing from 0 to about 20 carbon atoms, A is a substituent that will undergo an addition reaction with a pseudo-living polymer, and Z is a substituent that will react or interact with silica or carbon black reinforcing fillers, with the proviso that A, R, and Z are substituents that will not protonate a pseudo-living polymer.

Abstract translation: 要解决的问题：提供与由配位催化剂制备的聚合物反应以具有高顺式显微组织和对炭黑和二氧化硅的亲和力的官能化聚合物。 解决方案：通过包括以下步骤制备官能化聚合物的方法包括以下步骤：使用镧系元素类催化剂使共轭单体聚合制备假活性聚合物，并使假活性聚合物与由式A定义的官能化试剂反应 -R1-Z，其中R 1 是含有0至约20个碳原子的二价有机基团，A是将与假活性聚合物进行加成反应的取代基 并且Z是将与二氧化硅或炭黑增强填料反应或相互作用的取代基，条件是A，R'SP POS =“POST”> 1，Z是不会将伪质子 生物聚合物。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2008195869A

公开(公告)日：2008-08-28

申请号：JP2007033814

申请日：2007-02-14

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： MORITA KOICHI

IPC: C08F253/00 ,  B60C1/00 ,  C08K3/04 ,  C08L51/04

Abstract: PROBLEM TO BE SOLVED: To provide a rubber composition having remarkably excellent low loss, abrasion resistance and breaking characteristics, to provide a modified natural rubber suitable as the rubber component of the rubber composition, and to provide a modified natural rubber latex capable of producing the modified natural rubber.
SOLUTION: This modified natural rubber latex is prepared by adding a protected isocyanate group-containing monomer to a natural rubber latex to graft-polymerize the protected isocyanate group-containing monomer on natural rubber in the natural rubber latex. The modified natural rubber is prepared by coagulating and drying the modified natural rubber latex. And the rubber composition uses the modified natural rubber.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供具有非常优异的低损耗，耐磨性和断裂特性的橡胶组合物，以提供适合作为橡胶组合物的橡胶组分的改性天然橡胶，并提供能够改性的天然橡胶胶乳 生产改性天然橡胶。 解决方案：通过将天然橡胶胶乳中含有保护的含异氰酸酯基团的单体加入到天然橡胶胶乳中的天然橡胶上将受保护的含异氰酸酯基的单体接枝聚合来制备该改性天然橡胶胶乳。 改性天然橡胶通过凝固和干燥改性天然橡胶胶乳来制备。 橡胶组合物使用改性天然橡胶。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008195865A

公开(公告)日：2008-08-28

申请号：JP2007033729

申请日：2007-02-14

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： MORITA KOICHI

IPC: C08F253/00 ,  B60C1/00 ,  C08K3/36 ,  C08L51/04

Abstract: PROBLEM TO BE SOLVED: To provide a rubber composition having remarkably excellent low loss, abrasion resistance and breaking characteristics, to provide a modified natural rubber suitable as the rubber component of the rubber composition, and to provide a modified natural rubber latex capable of producing the modified natural rubber.
SOLUTION: This modified natural rubber latex prepared by adding a urethane group and/or urea group-containing monomer to a natural rubber latex to addition-react the urethane group and/or urea group-containing monomer to natural rubber in the natural rubber latex is characterized in that the amount of the added urethane group and/or urea group-containing monomer is 0.01 to 5.0 mass% based on the natural rubber in the natural rubber latex. The modified natural rubber is prepared by coagulating and drying the modified natural rubber latex. And the rubber composition uses the modified natural rubber.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供具有非常优异的低损耗，耐磨性和断裂特性的橡胶组合物，以提供适合作为橡胶组合物的橡胶组分的改性天然橡胶，并提供能够改性的天然橡胶胶乳 生产改性天然橡胶。 解决方案：通过向天然橡胶胶乳中加入氨基甲酸酯基和/或脲基单体以使天然橡胶中的氨基甲酸酯基和/或含脲基的单体加成反应而制备的改性天然橡胶胶乳 橡胶胶乳的特征在于，相对于天然橡胶胶乳中的天然橡胶，所添加的氨基甲酸酯基和/或含脲基单体的量为0.01〜5.0质量％。 改性天然橡胶通过凝固和干燥改性天然橡胶胶乳来制备。 橡胶组合物使用改性天然橡胶。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007084834A

公开(公告)日：2007-04-05

申请号：JP2006318872

申请日：2006-11-27

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： LAWSON DAVID F ,  MORITA KOICHI ,  OZAWA YOICHI ,  STAYER JR MARK L ,  FUJIO RYOTA

IPC: B60C1/00 ,  C08F4/08 ,  C07F1/02 ,  C08F4/00 ,  C08F4/42 ,  C08F4/48 ,  C08F36/00 ,  C08F36/04 ,  C08K3/04 ,  C08L9/00 ,  C08L21/00

CPC classification number: C08F36/06 ,  Y02T10/862 ,  C08F236/06 ,  C08F212/08 ,  C08F4/16 ,  C08F4/086

Abstract: PROBLEM TO BE SOLVED: To provide a functionalized polymer and a method for producing the same. SOLUTION: The functionalized polymer has a polymer chain having at least one functional group A. A is derived from a polymerization initiator having a general formula ALi äwherein A is selected from the group consisting of cyclic amines having the formula (1) (wherein R 2 is selected from the group comprising of alkylene groups having 6-8 methylene groups)} and a polarity adjuster. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 待解决的问题：提供官能化聚合物及其制备方法。 官能化聚合物具有至少一个官能团A的聚合物链.A衍生自具有通式AL 1的聚合引发剂，其中A选自具有式（1）的环状胺（ 其中R SB 2选自包含具有6-8个亚甲基的亚烷基的基团}}和极性调节剂。 版权所有（C）2007，JPO＆INPIT