公开(公告)号：CA2082857A1

公开(公告)日：1993-05-15

申请号：CA2082857

申请日：1992-11-13

Applicant: HASHIMOTO TAKATSUGU ,  AKUTAGAWA KEIZO ,  YAGAWA KAZUO ,  TANAKA MAKOTO ,  YAMAGISHI JUNICHI ,  HACHIYA KAZUO

Inventor： HASHIMOTO TAKATSUGU ,  AKUTAGAWA KEIZO ,  YAGAWA KAZUO ,  TANAKA MAKOTO ,  YAMAGISHI JUNICHI ,  HACHIYA KAZUO

IPC: B60C1/00 ,  B60C11/00

Abstract: The invention provides a flame-retardant rubber tire comprising an outer rubber body portion consisting essentially of a tread rubber layer 2, a sidewall rubber layer 3 extending inwardly from each side edge of the tread rubber layer 2 toward the vicinity of a bead portion 8 in a radial direction and a rubber chafer layer arranged in the vicinity of the bead portion 8. A flame-retardant rubber composition having an oxygen index of not less than 19.8 but not more than 27.5 is disposed so as to amount to at least 20% by weight of the tread rubber layer 2. Such rubber tires are used in electric vehicles, automobiles, airplanes and the like and having excellent self-extinguishing property and flame-delaying property without damaging other rubber properties.

公开(公告)号：CA2057848A1

公开(公告)日：1992-06-19

申请号：CA2057848

申请日：1991-12-17

Applicant: HASHIMOTO TAKATSUGU ,  WATANABE SHUICHI ,  MAKINO YOSHIHIRO ,  KANG JUNG W

Inventor： HASHIMOTO TAKATSUGU ,  WATANABE SHUICHI ,  MAKINO YOSHIHIRO ,  KANG JUNG W

IPC: B60C1/00 ,  C08F4/42 ,  C08F4/48 ,  C08F236/10 ,  C08F297/06 ,  C08K3/04 ,  C08L7/00 ,  C08L9/06 ,  C08L21/00

Abstract: Pneumatic tires for heavy-load vehicles, and in particular, radial tires are described wherein at least the tread portion of the tire is prepared from a vulcanizable elastomer composition comprising, as the elastomer component, an elastomer mixture comprising from about 10% to about 90% by weight of a copolymer composition of a 1 ,3-conjugated diene and an aromatic vinyl compound wherein the copolymer composition has a weight average molecular weight of greater than about 100,000, and from about 10% to about 90% of natural rubber. The copolymer compositions are prepared utilizing a trimetalated l-alkyne catalyst. The vulcanizable elastomer compositions preferably also contain from about 25 to about 250 parts by weight of carbon black per 100 parts by weight of the elastomer mixture.

公开(公告)号：CA2057847A1

公开(公告)日：1992-06-19

申请号：CA2057847

申请日：1991-12-17

Applicant: ROGGEMAN DAVID M ,  KANG JUNG W ,  HASHIMOTO TAKATSUGU

Inventor： ROGGEMAN DAVID M ,  KANG JUNG W ,  HASHIMOTO TAKATSUGU

IPC: C08F4/44 ,  C08F2/46 ,  C08F4/42 ,  C08F4/46 ,  C08F236/10 ,  C08F212/06 ,  C08F236/04

Abstract: A continuous process is described for preparing copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 100,000, and in one embodiment above about 900,000. The process comprises: (A) continuously introducing Into a reactor, a 1,3-conjugated diene, an aromatic vinyl compound, a hydrocarbon solvent and a polymerization catalyst comprising a trimetalated 1-alkyne wherein the catalyst is obtained by reacting at a temperature of above about 70.degree.C, a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound, R.degree.M and a 1,3-conjugated diene wherein the alkyne is characterized by the formula RCH2C?CH (II) wherein R is an alkyl group, R.degree. is a hydrocarbyl group, M is an alkali metal, the mole ratio of R.degree.M to 1-alkyne is about 3:1, and the mole ratio of conjugated diene to 1-alkyne Is from about 2:1 to about 30:1; (B) continuously agitating the contents of the reactor while effecting the polymerization reaction to form the copolymer; and (C) continuously withdrawing the copolymer from the reactor. The invention also relates to the copolymers thus prepared.

公开(公告)号：WO1993019578A2

公开(公告)日：1993-10-14

申请号：PCT/JP1993000971

申请日：1993-07-14

Applicant: BRIDGESTONE CORPORATION ,  NAKANE, Shinsuke ,  KANOU, Kazuhiko ,  HASHIMOTO, Takatsugu

Inventor： BRIDGESTONE CORPORATION

IPC: B60C1/00 ,  C08K3/04 ,  C08K5/09 ,  C08L7/00 ,  C08L9/00

CPC classification number: C08K3/04 ,  B60C1/0016 ,  C08K5/09 ,  C08L21/00

Abstract: A tire tread rubber composition comprising: 100 parts by weight of a natural rubber and/or a synthetic diene rubber, 40 to 100 parts by weight or carbon black having a cetyltrimethylammonium bromide (CTAB) adsorption specific surface area of 90-220 m /g and a 24MADBP absorption number of 90-140 ml/100 g, and 0.1 to 20 parts by weight of unsaturated fatty acids each having at least two carbon-carbon double bonds in its molecule, said acids involving at least 10 wt.% of a conjugated dienoic acid having at least one pair of carbon-carbon double bonds conjugated with each other in its molecule. The composition is suitable for the production of pneumatic tires, in particular, heavy-load pneumatic tires having excellent wear resistance.

Abstract translation: 一种轮胎胎面橡胶组合物，其包含：100重量份天然橡胶和/或合成二烯橡胶，40至100重量份或具有十六烷基三甲基溴化铵（CTAB）吸附比表面积为90-220m 2的炭黑 > g，24MADBP吸收值为90-140ml / 100g，和0.1至20重量份在其分子中各具有至少两个碳 - 碳双键的不饱和脂肪酸，所述酸包括至少10重量％ ％的共轭二烯酸在其分子中具有至少一对彼此共轭的碳 - 碳双键。 该组合物适用于生产充气轮胎，特别是具有优异耐磨性的重载充气轮胎。

公开(公告)号：WO1997035462A2

公开(公告)日：1997-10-02

申请号：PCT/JP1997002244

申请日：1997-06-27

Applicant: BRIDGESTONE CORPORATION ,  HASHIMOTO, Takatsugu

Inventor： BRIDGESTONE CORPORATION

IPC: C07C7/10 ,  C08K5/01 ,  C08L21/00 ,  C10G1/00

CPC classification number: C08K5/01 ,  C08L21/00

Abstract: A high-aromatic oil which has a glass transition point of -45 to -20 DEG C, an aromatics content of 55 to 90 % by weight as measured by the clay gel method, and a polycyclic aromatic compound content of less than 3 % by weight, based on the whole hydrocarbon component contained in the oil component, as measured by the IP346 method. This oil is suitable for use in preparing various rubber compositions for tires, rubber vibration isolators, antiglare materials and the like, oil extended synthetic rubbers, and printing inks, inks for writing utensils, and the like.

Abstract translation: 玻璃化转变温度为-45〜-20℃，通过粘土凝胶法测定的芳族化合物含量为55〜90重量％，多环芳香族化合物含量低于3％的高芳香族油 基于通过IP346方法测量的油成分中所含的全部烃成分。 该油适用于制备各种轮胎用橡胶组合物，橡胶隔振器，防眩光材料等，油扩张合成橡胶，印刷油墨，书写用油墨等。

公开(公告)号：WO0238667A3

公开(公告)日：2003-03-20

申请号：PCT/JP0109552

申请日：2001-10-31

Applicant: BRIDGESTONE CORP ,  TORATANI HIROTOSHI ,  IWAFUNE SEIICHIRO ,  KIJIMA KEN ,  MAEDA HIROMI ,  HASHIMOTO TAKATSUGU ,  YANAGISAMA KAZUHIRO

Inventor： TORATANI HIROTOSHI ,  IWAFUNE SEIICHIRO ,  KIJIMA KEN ,  MAEDA HIROMI ,  HASHIMOTO TAKATSUGU ,  YANAGISAMA KAZUHIRO

IPC: C08K3/00 ,  B29B13/06 ,  C08C1/075 ,  C08C1/12 ,  C08K3/22 ,  C08K5/10 ,  C08K5/12 ,  C08K5/25 ,  C08L7/00 ,  C08L7/02 ,  C08J3/00

CPC classification number: B29B13/06 ,  B29K2007/00 ,  B29K2105/0064 ,  B29K2105/16 ,  C08C1/12 ,  C08K3/22 ,  C08K5/10 ,  C08K5/25 ,  C08L7/02 ,  C08L7/00

Abstract: Provided is a natural rubber obtained by drying a gathered natural rubber latex without coagulating, wherein a drum dryer and/or a conveyor type dryer are used for drying. Further, provided are a production process for a natural rubber-filler mixture prepared by adding at least one of carbon black and inorganic fillers to a natural rubber latex, a natural rubber added a viscosity stabilizer comprising hydrazide compounds or esters of aromatic or aliphatic polycarboxylic acid derivatives to these natural rubber and natural rubber-filler mixture, and a rubber composition which is prepared using the above natural rubbers and which is excellent in productivity, abrasion resistance and fracture resistance.

Abstract translation: 提供通过干燥聚集的天然橡胶胶乳而不凝结而获得的天然橡胶，其中使用滚筒式干燥机和/或输送式干燥机进行干燥。 此外，提供了通过向天然橡胶胶乳中加入至少一种炭黑和无机填料制备的天然橡胶填料混合物的制备方法，天然橡胶中加入了包含酰肼化合物或芳族或脂族多元羧酸酯的粘度稳定剂 这些天然橡胶和天然橡胶填料混合物的衍生物，以及使用上述天然橡胶制备并且生产率，耐磨性和耐断裂性优异的橡胶组合物。

公开(公告)号：WO9735462A3

公开(公告)日：1997-11-20

申请号：PCT/JP9702244

申请日：1997-06-27

Applicant: BRIDGESTONE CORP ,  HASHIMOTO TAKATSUGU

Inventor： HASHIMOTO TAKATSUGU

IPC: C07C7/10 ,  C08K5/01 ,  C08L21/00 ,  C10G1/00

CPC classification number: C08K5/01 ,  C08L21/00

Abstract: A high-aromatic oil which has a glass transition point of -45 to -20 °C, an aromatics content of 55 to 90 % by weight as measured by the clay gel method, and a polycyclic aromatic compound content of less than 3 % by weight, based on the whole hydrocarbon component contained in the oil component, as measured by the IP346 method. This oil is suitable for use in preparing various rubber compositions for tires, rubber vibration isolators, antiglare materials and the like, oil extended synthetic rubbers, and printing inks, inks for writing utensils, and the like.