公开(公告)号：JP2009173736A

公开(公告)日：2009-08-06

申请号：JP2008012506

申请日：2008-01-23

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

Inventor： OSHIMA NOBUMITSU

IPC: C08J3/22 ,  B60C1/00 ,  C08K3/04 ,  C08K3/06 ,  C08K3/34 ,  C08L15/00

CPC classification number: Y02T10/862

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a rubber composition securing a low rolling resistance without damaging its destructive character, and the rubber composition obtained by the method and a tire obtained by using the same composition.
SOLUTION: This method for producing the rubber composition containing (A) a diene-based rubber having terminal modifying groups, (B) a diene-based rubber which is the same to or different from the above diene-based rubber, (C) a reinforcing filler and (D) a cross-linking agent is provided by obtaining a master batch by adding the whole of (C) the reinforcing filler to (A) the diene-based rubber, and then mixing/kneading (B) the diene based rubber and (D) the cross-linking agent into the obtained master batch.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 解决的问题：提供一种固定低滚动阻力而不损害其破坏性的橡胶组合物的制造方法以及通过使用相同组成获得的通过该方法获得的橡胶组合物和轮胎。 （A）具有末端改性基团的二烯系橡胶，（B）与上述二烯类橡胶相同或不同的二烯系橡胶的（A）二烯系橡胶的制造方法， C）增强填料，（D）交联剂是通过在（A）二烯类橡胶中加入（C）增强填料而得到母料，然后混合/捏合（B） 二烯基橡胶和（D）交联剂转化成所获得的母料。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009173739A

公开(公告)日：2009-08-06

申请号：JP2008012509

申请日：2008-01-23

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

Inventor： OSHIMA NOBUMITSU

IPC: C08L9/06 ,  B60C1/00 ,  C08J3/22 ,  C08K3/00 ,  C08K5/00

CPC classification number: Y02T10/862

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a rubber composition ensuring low rolling resistance without deteriorating fracture characteristics, and to provide a rubber composition obtained by the above method and a tire using the rubber composition.
SOLUTION: In the method for producing the rubber composition comprising (A) a styrene-butadiene copolymer rubber (SBR), (B) an SBR which is different from the above SBR (A), (C) a reinforcing filler, and (D) a crosslinking agent, the SBR (A) has Mooney viscosity lower than that of the SBR (B), and after obtaining a master batch by adding all of the reinforcing filler (C) to the SBR (A), the SBR (B) and the crosslinking agent (D) are mixed in the obtained master batch and kneaded.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 解决的问题：提供一种确保低滚动阻力而不破坏断裂特性的橡胶组合物的制备方法，并提供通过上述方法获得的橡胶组合物和使用该橡胶组合物的轮胎。 解决方案：在（A）苯乙烯 - 丁二烯共聚物橡胶（SBR），（B）不同于上述SBR（A）的SBR和（C））增强填料的橡胶组合物的制造方法中， 和（D）交联剂，SBR（A）的门尼粘度低于SBR（B）的门尼粘度，并且通过将所有的增强填料（C）加入到SBR（A）中获得母料后， SBR（B）和交联剂（D）在所得到的母料中混合并捏合。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007070617A

公开(公告)日：2007-03-22

申请号：JP2006216538

申请日：2006-08-09

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

Inventor： OSHIMA NOBUMITSU

IPC: C08L21/00 ,  B60C1/00 ,  C08K3/04 ,  C08L91/00

Abstract: PROBLEM TO BE SOLVED: To provide a rubber composition which can realize a high hysteresis loss characteristic without deteriorating other physical properties such as fracture characteristics, to provide a method for controlling the rubber physical properties thereof, and to provide a tire using the rubber composition. SOLUTION: The rubber composition comprises 100 pats by weight of a rubber component, 0.1 to 100 parts by weight of graphitized carbon material, and a lipid whose amount is 0.02 to 0.2 times that of the graphitized carbon material. Preferably, the graphitized carbon material is a carbon fiber grown in a vapor phase or graphitized carbon black, and the lipid is a fatty acid. Preferably, the rubber composition according to the present invention has a loss tangent tan δ in the range of 0.05 to 0.5 at a temperature of 60 degree C after vulcanization. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了提供可以实现高滞后损失特性的橡胶组合物，而不会破坏诸如断裂特性的其它物理性能，以提供控制其橡胶物理性能的方法，并且提供使用 橡胶组成。 解决方案：橡胶组合物包含100重量份橡胶组分，0.1至100重量份石墨化碳材料和脂质，其量为石墨化碳材料的0.02至0.2倍。 优选地，石墨化碳材料是在气相或石墨化碳黑中生长的碳纤维，脂质是脂肪酸。 优选地，本发明的橡胶组合物在硫化后在60℃的温度下的损耗角正切tanδ在0.05〜0.5的范围内。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006003265A

公开(公告)日：2006-01-05

申请号：JP2004181253

申请日：2004-06-18

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

Inventor： OSHIMA NOBUMITSU

IPC: G01N30/88 ,  B01J20/283 ,  B01J20/286 ,  G01N30/26 ,  G01N30/74 ,  G01N30/86 ,  G01N33/44

Abstract: PROBLEM TO BE SOLVED: To provide a method capable of accurately measuring a ratio of a modified copolymer, of which the molecular chain terminal is modified, and an unmodified copolymer, of which the molecular chain terminal is unmodified, in a mixture of the modified copolymer and the unmodified copolymer in a short time.
SOLUTION: In the method for determinating the ratio of the component (A) and component (B) in a polymer material containing the modified copolymer being a conjugated diene monomer/vinyl aromatic hydrocarbon monomer copolymer, of which the molecular chain terminal is blocked by an amino group, and the unmodified copolymer of which the molecular chain terminal is not blocked by the amino group, the component (A) and the component (B) are separated by liquid chromatography, wherein a silica gel of which the surface silanol group is unmodified or a silica gel of which the surface silanol group is partially or wholly modified with an aminopropyl group is a fixed phase and a mixed solvent of a polar solvent and a non-polar solvent is a mobile phase, to be determinated. The ratio of the modified copolymer of which the molecular chain terminal is modified and the unmodified copolymer of which the molecular chain terminal is unmodified in the mixture of the modified copolymer and the unmodified copolymer can be accurately measured in a short time and especially a mixture having a molecular weight of 100,000 or above difficult to measure heretofore can be also measured.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种能够精确测量其分子链末端被修饰的改性共聚物与分子链末端未被修饰的未改性共聚物与未改性的未改性共聚物的比例的方法， 改性共聚物和未改性共聚物。 解决方案：在用于测定包含共轭二烯单体/乙烯基芳族烃单体共聚物的聚合物材料中的组分（A）和组分（B）的比例的方法中，其分子链末端为 被氨基封闭，分子链末端未被氨基封闭的未改性共聚物，通过液相色谱分离组分（A）和组分（B），其中将表面硅烷醇 基团是未改性的，其表面硅烷醇基部分或全部用氨基丙基修饰的硅胶是固定相，极性溶剂和非极性溶剂的混合溶剂是流动相，待测定。 在改性共聚物和未改性共聚物的混合物中改性分子链末端的改性共聚物与分子链末端未修饰的未改性共聚物的比例可以在短时间内精确测量，特别是具有 也可以测量以前难以测量的100,000或更高的分子量。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JPH03103402A

公开(公告)日：1991-04-30

申请号：JP24061489

申请日：1989-09-19

Applicant: BRIDGESTONE CORP

Inventor： OSHIMA NOBUMITSU ,  MORITA KOICHI ,  KITAMURA TAKASHI ,  TAKIZAWA TOSHIKI ,  FUJIO RYOTA

IPC: C07D257/04 ,  C08C19/22 ,  C08F8/34

Abstract: PURPOSE:To prepare the subject novel elastomer having excellent breaking strength and road surface-gripping property and suitable for tread rubbers by reacting a C=C band-containing elastomer with a substituted tetrazole mercaptan in the presence of a specific organic halogenation agent. CONSTITUTION:An elastomer having carbon-carbon double bonds (e.g. styrene- butadiene copolymer rubber) is reacted with a substituted tetrazole mercaptan of formula II (R is 1-20C alkyl, aryl, etc.) (e.g. 1-methyl-5-mercapto-1,2,3-tetrazole) in the presence of an organic halogenation agent selected from among an alkyl hypohalite, an N-haloamide compound of formula I (X is halogen; A is carboxylic acid residue, sulfonic acid residue, etc.; B is H, halogen, etc.) and a trihalocyanuric acid to provide the objective elastomer in which substituted tetrazolylthio groups of formula III are irregularily addition-reacted to one part of the double bonds of the elastomer in a ratio of are substituted tetrazolylthio group per double bond.

公开(公告)号：JP2011225784A

公开(公告)日：2011-11-10

申请号：JP2010099277

申请日：2010-04-22

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

Inventor： OTAKE MAKIKO ,  OSHIMA NOBUMITSU

IPC: C08L9/00 ,  B60C1/00 ,  C08K3/36 ,  C08K5/11 ,  C08K5/548

Abstract: PROBLEM TO BE SOLVED: To provide a tire using a rubber composition having satisfactory work efficiency and also having excellent wear resistance.SOLUTION: The tire uses a rubber composition containing: an organic silicon compound (A) expressed by general formula (I) [X and Y in the formula (I) denote O, S or CH; Rand Rdenote hydrogen, a 1C to 18C monovalent hydrocarbon group, -(CH-O)Ror -CH-NRR(wherein, l and m are respectively independently 1 to 10; and Rand Rdenote hydrogen or 1 to 10C monovalent hydrocarbon); Rand Rdenote a 1C to 10C bivalent hydrocarbon group; and Rand Rdenote hydrogen or 1C to 18C monovalent hydrocarbon]; the partial ester of maleic anhydride and a (poly)oxypropylene derivative (B); and silica (C).

Abstract translation: 要解决的问题：提供一种使用具有令人满意的工作效率并且具有优异耐磨性的橡胶组合物的轮胎。 ＆lt; P＆gt;解决方案：轮胎使用含有下列通式（I）表示的有机硅化合物（A）的橡胶组合物：式（I）中的X和Y表示O，S或CH 2 ; R 1 ，R 6表示氢，1C至18C单价烃基， - （C H 21 -O） m R 7 或者-C 1 R 8 （其中，l和m分别独立地为1至10; R 7 和R 8 < SP>表示氢或1〜10元一价烃）; R 2 和R 5 表示1℃至10℃的二价烃基; 和R 3 ，R 4 表示氢或1C至18C一价烃]; 马来酸酐和（聚）氧亚丙基衍生物（B）的偏酯; 和二氧化硅（C）。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2009173738A

公开(公告)日：2009-08-06

申请号：JP2008012508

申请日：2008-01-23

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

Inventor： OSHIMA NOBUMITSU

IPC: C08L9/00 ,  B60C1/00 ,  C08J3/22 ,  C08K3/00

CPC classification number: Y02T10/862

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a rubber composition ensuring low rolling resistance without deteriorating fracture characteristics, and to provide a rubber composition obtained by the above method and a tire using the rubber composition.
SOLUTION: In the method for producing the rubber composition comprising (A) a diene rubber, (B) a diene rubber which is the same as or different from the diene rubber (A), (C) a reinforcing filler, and (D) a crosslinking agent, a master batch is obtained by adding carbon black (C1) as a part of the reinforcing filler (C) to the diene rubber (A), and then, the diene rubber (B), silica (C2) as the rest of the reinforcing filler (C), and the crosslinking agent (D) are mixed to the obtained master batch and kneaded.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 解决的问题：提供一种确保低滚动阻力而不破坏断裂特性的橡胶组合物的制备方法，并提供通过上述方法获得的橡胶组合物和使用该橡胶组合物的轮胎。 解决方案：在制备橡胶组合物的方法中，其包含（A）二烯橡胶，（B）与二烯橡胶（A）相同或不同的二烯橡胶，（C）增强填料，以及 （D）交联剂，通过将添加炭黑（C1）作为增强填料（C）的一部分添加到二烯橡胶（A）中，然后将二烯橡胶（B），二氧化硅（C2 ）作为补强填料（C）的其余部分，将交联剂（D）与所得到的母料混合并捏合。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007211194A

公开(公告)日：2007-08-23

申请号：JP2006034669

申请日：2006-02-13

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

Inventor： OSHIMA NOBUMITSU ,  MAEDA MITSUAKI ,  AOKI SEI ,  INAMURA TOMOMI

IPC: C08L9/00 ,  B60C1/00 ,  C08K7/06

Abstract: PROBLEM TO BE SOLVED: To obtain a rubber composition providing a cured material having high mechanical properties and high anisotropy as carcass coating and to provide a pneumatic tire having excellent durability and driveability by applying the cured material of the rubber composition to a carcass coating material.
SOLUTION: The rubber composition for carcass coating comprises a vapor-phase growth carbon fiber. The pneumatic tire is equipped with a coated carcass produced by coating carcass cords with the cured material of the rubber composition.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了获得提供具有机械性能和各向异性高的固化物的橡胶组合物作为胎体涂层，并且通过将橡胶组合物的固化材料施加到胎体上来提供具有优异的耐久性和可驱动性的充气轮胎 涂料。 解决方案：用于胴体涂层的橡胶组合物包括气相生长碳纤维。 充气轮胎配备有通过用橡胶组合物的固化材料涂覆胎体帘线而制成的涂覆胎体。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2000128901A

公开(公告)日：2000-05-09

申请号：JP30680998

申请日：1998-10-28

Applicant: BRIDGESTONE CORP

Inventor： OSHIMA NOBUMITSU ,  IZUMIMOTO TAKAHARU

IPC: C08L21/00 ,  C08C19/00

Abstract: PROBLEM TO BE SOLVED: To obtain a reclaimed rubber always having excellent rubber performances in the reclaimed rubber obtained by desulfurization. SOLUTION: In a reclaimed rubber that is obtained, when vulcanized rubber is subjected to desulfurization treatment, the proportion of a sol to a gel is 10-80%, the weight average molecular weight(Mw) ranges from 2,000-300,000 according to a gel permeation chromatography of the sole and the degree of the swelling is 3.0-20.0.

公开(公告)号：JPH10195301A

公开(公告)日：1998-07-28

申请号：JP35916396

申请日：1996-12-29

Applicant: BRIDGESTONE CORP

Inventor： OUCHI TAKAO ,  OSHIMA NOBUMITSU ,  IWASAKI SHINICHI

IPC: E01C7/26 ,  C08K3/04 ,  C08L53/02 ,  C08L95/00

Abstract: PROBLEM TO BE SOLVED: To obtain a binder which undergoes less separation of a constituent thermoplastic elastomer and can be kept in an uniform state for a long time even when stored at high temperatures by uniformly mixing the thermoplastic elastomer with carbon black to form a composite before mixing it with asphalt. SOLUTION: 100 pts.wt. thermoplastic elastomer, desirably a styrene/butadiene/styrene block copolymer is uniformly mixed with 10-100 pts.wt., desirably 30-80 pts.wt. carbon black to form a complex. The carbon black used should have a particle diameter of 5-100μm, desirably 15-40μm and an N2 adsorption specific surface area of 30-200m /g, desirably 80-180m /g. It is desirable that the obtained binder comprises 96.5-70 pts.wt. asphalt, 3-15 pts.wt. thermoplastic elastomer and 0.5-15 pts.wt. carbon black.