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1.发明专利Method for producing rubber composition, rubber composition, and tire using the same 审中-公开制造橡胶组合物的方法，橡胶组合物和使用其的轮胎
公开(公告)号：JP2009173698A
公开(公告)日：2009-08-06
申请号：JP2008011166
申请日：2008-01-22
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： YAMADA TSUTOMU , OSHIMA NOBUMITSU , OTANI TOMOMI
CPC classification number: Y02T10/862
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a rubber composition securing low rolling resistance without damaging its rupture characteristic, 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 natural rubber, (B) a styrene-butadiene copolymer rubber, (C) a reinforcing filler and (D) a crosslinking agent is provided by obtaining a master batch by adding the whole of (C) the reinforcing filler to (A) the natural rubber, and then mixing/kneading (B) the styrene-butadiene copolymer rubber and (D) the crosslinking agent into the obtained master batch. The rubber composition obtained by the method and the tire produced by using the composition are also provided.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 待解决的问题：提供一种制造低滚动阻力而不破坏其破裂特性的橡胶组合物的方法，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。 解决方案：制备含有（A）天然橡胶，（B）苯乙烯 - 丁二烯共聚物橡胶，（C）增强填料和（D）交联剂）的橡胶组合物的方法是通过获得母料 将（C）增强填料加入到（A）天然橡胶中，然后将苯乙烯 - 丁二烯共聚物橡胶和（D）交联剂混合/捏合（B）到所得母料中。 还提供了通过该方法获得的橡胶组合物和通过使用该组合物生产的轮胎。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2008195790A
公开(公告)日：2008-08-28
申请号：JP2007030954
申请日：2007-02-09
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： KITANO SO , YAMADA TSUTOMU , AKAMA HIDEHIRO
IPC: C08F290/12 , C08F290/04
Abstract: PROBLEM TO BE SOLVED: To provide a photocurable liquid rubber composition which can be converted into a solvent-free state, can easily adjust a viscosity, has highly uniform hardness in the depth direction even in a thick shape, after cured, and has a high breaking strength, after cured.
SOLUTION: This photocurable liquid rubber composition comprises a liquid rubber having photocurable unsaturated hydrocarbon group-containing functional groups in the molecule chain or at both the terminals of the molecule chain, a (meth)acryloyl group-containing monomer, a photopolymerization initiator, and a heat-curing agent.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：为了提供可以转化为无溶剂状态的光固化性液体橡胶组合物，可以容易地调节粘度，在固化后即使是厚的形状也具有在深度方向上具有高度均匀的硬度，以及 治愈后具有较高的断裂强度。 该可光固化液体橡胶组合物包括在分子链中或在分子链的末端具有含光固化性不饱和烃基的官能团的液态橡胶，含（甲基）丙烯酰基单体，光聚合引发剂 ，和热固化剂。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007131664A
公开(公告)日：2007-05-31
申请号：JP2005323433
申请日：2005-11-08
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： YAMADA TSUTOMU
Abstract: PROBLEM TO BE SOLVED: To surely produce a crosslinked rubber having low hardness, small compression set and excellent processability in high efficiency. SOLUTION: The method for producing a crosslinked rubber comprises the kneading of a liquid rubber with a crosslinking agent and other ingredients, defoaming the mixture, forming to a desired form and curing the product by crosslinking, wherein the kneading operation is carried out by using a planetary mixer. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：为了确保高效率地生产低硬度，小的压缩永久变形和优异的加工性的交联橡胶。 解决方案：交联橡胶的制造方法包括将液体橡胶与交联剂和其他成分混合，使混合物脱泡，形成所需形状，并通过交联固化产物，其中进行捏合操作 通过使用行星式混合器。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2004268487A
公开(公告)日：2004-09-30
申请号：JP2003064620
申请日：2003-03-11
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： YAMADA TSUTOMU , OSAKI TOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a foamed rubber roller which is low in hardness and thin in cell walls and has a uniform fine cell structure and the foamed rubber roller obtained by the method. SOLUTION: The method for producing the foamed rubber roller includes a kneading process for kneading an unvulcanized rubber composition comprising a rubber component and a compounding agent containing at least a foaming agent and a vulcanizing agent and a vulcanization/foaming process for vulcanizing/foaming the kneaded unvulcanized rubber composition. In the vulcanization/foaming process, after heat of at least 8.0 J/g is applied to the unvulcanized rubber composition at the temperature range of at most 150°C, the composition is vulcanized by heating it to a predetermined vulcanization temperature, or the composition is kneaded until the temperature of it is increased corresponding to heat of at least 5.4 J/g. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract translation: 待解决的问题：提供一种生产泡沫橡胶辊的方法，所述发泡橡胶辊的硬度低，细胞壁薄，并且具有均匀的细胞结构和通过该方法获得的发泡橡胶辊。 解决方案：发泡橡胶辊的制造方法包括捏合含有橡胶成分的未硫化橡胶组合物和至少含有发泡剂和硫化剂的配混剂的混炼工序和硫化/发泡法， 使捏合的未硫化橡胶组合物发泡。 在硫化/发泡过程中，在至少为150℃的温度范围内，对未硫化橡胶组合物施加至少8.0J / g的热量后，将组合物加热至预定的硫化温度或组合物 捏合直到其温度升高至少为5.4J / g的热量。 版权所有（C）2004，JPO＆NCIPI
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公开(公告)号：JP2003080547A
公开(公告)日：2003-03-19
申请号：JP2002124762
申请日：2002-04-25
Applicant: Bridgestone Corp , 株式会社ブリヂストン
Inventor： YAMADA TSUTOMU , OSAKI TOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a conductive foamed rubber roller having fine cells, strong in the adhesion of a foamed rubber and a shaft and reduced in the irregularity of electric resistance.
SOLUTION: In the method for manufacturing the conductive foamed rubber roller by charging an unvulcanized rubber composition containing a raw material rubber and a conductive material in a split mold to vulcanize and foam the same, the shaft precoated with a thermally curable conductive adhesive and dried is arranged in the split mold. In this case, the charged amount of the rubber composition is set to 95-105% of the cavity volume of the split mold, the opening speed of the mold is 0.5 cm/s or higher, vulcanization pressure is set to 9.8×10
5 -9.8×10
6 Pa and a vulcanization/foaming time is not less than the time before a torque value of a curastometer reaches 39.2 N/cm at a vulcanization temperature of 150-190°C.
COPYRIGHT: (C)2003,JPOAbstract translation: 要解决的问题：提供一种具有细小电池的导电发泡橡胶辊的制造方法，发泡橡胶和轴的粘合性强，并且电阻不均匀性降低。 解决方案：在通过在分模中装入含有原料橡胶和导电材料的未硫化橡胶组合物来制造导电发泡橡胶辊以使其硫化和发泡的方法中，用热固化导电粘合剂预干燥并干燥的轴是 布置在分模中。 在这种情况下，将橡胶组合物的带电量设定为开模的模腔体积的95〜105％，模具的开口速度为0.5cm / s以上，硫化压力设定为9.8×10 < 5> -9.8×10 6 Pa，并且硫化/发泡时间不小于在150-190℃的硫化温度下测得的扭矩值达到39.2N / cm之前的时间。
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Patent Agency Ranking
公开(公告)号：JP2002187157A
公开(公告)日：2002-07-02
申请号：JP2001229265
申请日：2001-07-30
Applicant: BRIDGESTONE CORP
Inventor： YAMADA TSUTOMU , OSAKI TOSHIYUKI , KAWAGOE TAKAHIRO
IPC: G03G15/02 , B29C44/00 , B29L9/00 , B29L31/32 , B65H3/06 , B65H5/06 , F16C13/00 , G03G15/08 , G03G15/16 , G03G21/10
Abstract: PROBLEM TO BE SOLVED: To provide an expanded rubber roller which shows the compatibility of low hardness with low compression permanent set and a little variability of hardness or electric resistance, with fine expanded cells. SOLUTION: The manufacturing method for the expanded rubber roller with a rubber foam layer formed on the outer periphery of a shaft comprises (1) the steps of forming an adhesive layer by applying an adhesive to the outer periphery of the shaft, (2) the step of obtaining an unexpanded rubber roller by extruding and molding an expanded rubber composition, in a cylindrical shape, onto the outer periphery of the shaft with the formed adhesive layer, using a rubber extruder, (3) the step of setting the unexpanded rubber roller inside a previously temperature-controlled split mold and vulcanize/expand the roller while pressurizing it under a specified pressure for a specified time, (4) the step of opening the split mold and unload the roller from the split mold and (5) the step of adjusting the obtained roller to a specified outside diameter.
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公开(公告)号：JP2001166585A
公开(公告)日：2001-06-22
申请号：JP34896699
申请日：1999-12-08
Applicant: BRIDGESTONE CORP
Inventor： NAKAJIMA TADASHI , MURATA KAZUYA , SAKATA JUNJI , YAMADA TSUTOMU
Abstract: PROBLEM TO BE SOLVED: To provide a developer supply member capable of obtaining an excellent image even when the number of printed sheets is increased in an electrophotographic or electrostatic recording image forming device. SOLUTION: This developer supply member is used while abutting on a developer carrier and at least its surface abutting on the developer carrier is constituted of high polymer elastic foam. In a lambourne wear testing machine, a testee piece obtained by molding the high polymer elastic foam like a disk is arranged so that its outer periphery part may abut on the outer periphery part of a grindstone constituted by sticking the sand paper of ξ40 to the outer periphery of disk-like substance, and the testee piece is press- contacted with the grindstone for five minutes with the pressure of 1.9×105Pa while the testee piece is rotated at the circumstantial speed of 5 mm/sec and the grindstone is rotated at the circumferential speed of 300 mm/sec so that the testee piece and the grindstone may be rotated in a forward direction. The projecting area of the wear powder simplex of the high polymer elastic foam produced at such a time is
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公开(公告)号：JP2000327910A
公开(公告)日：2000-11-28
申请号：JP14291599
申请日：1999-05-24
Applicant: BRIDGESTONE CORP
Inventor： NAKAJIMA TADASHI , SAKATA JUNJI , YAMADA TSUTOMU , KAWAGOE TAKAHIRO
Abstract: PROBLEM TO BE SOLVED: To obtain an electroconductive polyurethane member having a low hardness without fouling a photoreceptor and without fusing to a toner, remarkably reduced in positional dispersion of electrical resistance and voltage dependence and suitable as a member for an apparatus for forming images. SOLUTION: This electroconductive polyurethane member comprises a polyurethane having electroconductivity. In the electroconductive polyurethane member, the polyurethane comprises a nonelectroconductive absorbent substance and the amount Z [wt.%] of the formulated nonelectroconductive oil absorbent substance satisfies 0.1X
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公开(公告)号：JPH1124441A
公开(公告)日：1999-01-29
申请号：JP12817098
申请日：1998-04-22
Applicant: BRIDGESTONE CORP
Inventor： NIWA HIDEYUKI , KAGA NORIHIKO , MAEDA HIROKO , YAMADA TSUTOMU , KAWAGOE TAKAHIRO , KITAMURA TAKASHI
Abstract: PROBLEM TO BE SOLVED: To surely evaluate toner holding power without requiring the test of an actual machine and to surely obtain the excellent toner holding power by laminating an elastic layer and a coating film layer and specifying relation between the dielectric constant of the elastic layer and the volume resistivity of the coating film layer. SOLUTION: An OA apparatus member such as an intermediate transfer member is constituted by using a laminated body provided with an elastic layer 11 constituting of one or more than two plural layers and a coating film layer 12 consisting of one or more than two layers. In this case, when the dielectric constant of the layer 11 is defined as (εb) and the volume receptivity of the layer 12 is defined as (ρvs), two conditions of (1) 0
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公开(公告)号：JPH10211661A
公开(公告)日：1998-08-11
申请号：JP3132797
申请日：1997-01-30
Applicant: BRIDGESTONE CORP
Inventor： MAEDA HIROKO , KAGA NORIHIKO , NIWA HIDEYUKI , YAMADA TSUTOMU , KAWAGOE TAKAHIRO
IPC: B41J13/076 , B29D29/00 , B65H5/06 , B65H27/00 , C08G18/62 , C09D175/04 , F16C13/00 , G03G7/00 , G03G15/02 , G03G15/08 , G03G15/16 , G03G15/20
Abstract: PROBLEM TO BE SOLVED: To conform excellently to elastic deformation of a rubber, a foam body, and the like by forming a skin layer with a fluorocarbon resin containing a functional group capable of reacting with an isocyanate group and a resin containing a reaction product with a polyisocyanate compound. SOLUTION: A skin layer 1 formed on the member surface includes fluorocarbon resin capable of reacting with an isocyanate group and a reaction product with a polyisocyanate compound. A rate of use of each component is not limited particularly; however, a reaction product is usually preferable which is obtained by reacting a 100-10 pts.wt., in particular, 80-20 pts.wt. polyisocyanate compound in a 100 pts.wt. fluorocarbon resin. For such an isocyanate group, though there is no limitation, a functional group can be exemplified which has active hydrogen such as a hydroxyl group, an amino group, a carboxyl group and a sulfonic group, and a hydroxyl group is most suitable among these groups.
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