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    PAPER FEED ROLL AND PAPER FEEDER
    31.
    发明专利
    PAPER FEED ROLL AND PAPER FEEDER 失效

    公开(公告)号：JPH0858998A

    公开(公告)日：1996-03-05

    申请号：JP21954894

    申请日：1994-08-22

    Applicant: BRIDGESTONE CORP

    Inventor： YAMAZAKI HIROTAKA ,  FUKAHORI YOSHIHIDE ,  YAMADA TSUTOMU ,  TOYOSAWA SHINICHI

    IPC: G03G15/00 ,  B65H3/06 ,  C08L21/00 ,  H04N1/00

    Abstract: PURPOSE: To provide a paper feed roll excellent in wear resistance, partial wear resistance, friction coefficient stability and a paper feed characteristics without paper contamination even in use for a long period. CONSTITUTION: A roll is formed of rubber composition containing a low molecular material holding medium material compound (A) containing a low molecular material and medium material and containing a rubber material (B), and the low molecular material has 5×10 centipoise or less viscosity at 100 deg.C, to set a 3.0 or less difference of each solubility parameter value between this low molecular material and medium material, and to set 1.0 or more weight ratio of the low molecular material to the medium material. Further, a difference of each solubility parameter value between the low molecular material and the rubber material (B) is 4.0 or less, and wear damping many grooves 6 are formed in the peripheral surface.

    CATALYST FOR PURIFYING EXHAUST GAS
    32.
    发明专利
    CATALYST FOR PURIFYING EXHAUST GAS 失效

    公开(公告)号：JPS62140647A

    公开(公告)日：1987-06-24

    申请号：JP27921985

    申请日：1985-12-13

    Applicant: BRIDGESTONE CORP

    Inventor： YAMADA TSUTOMU ,  WATABE HIROJI ,  MURAKAMI YUICHI

    IPC: B01J23/847 ,  B01D53/86 ,  B01J23/84 ,  B01J23/89

    Abstract: PURPOSE:To enhance the oxidation activity of the titled catalyst on SO3 and SO2 in exhaust gas by combining >=1 kind among (a) Cu or Cu compd., (b) V or V compds., and (c) Zn, Pb, Ce, or their compds., and depositing the combined material on a porous carrier. CONSTITUTION:Alumina, titania, zirconia, etc., are previously coated on the internal surface of a fine particle collecting body such as a ceramic porous body. Then the material obtained by combining at least one kind among (a) Cu or Cu compds., (b) V or V compds., and (c) Zn, Pb, Ce, or their compds. is deposited on the coated film of the fine particle collecting body to form the catalyst for purifying exhaust gas. Furthermore, >=1 kind among platinum, rhodium, and palladium is preferably deposited on the fine particle collecting body. The amts. of the metallic catalytic components to be deposited on the fine particle collecting body are controlled to 1-20wt%.

    Method for producing rubber composition, rubber composition, and tire using the same
    33.
    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：JP2009173697A

    公开(公告)日：2009-08-06

    申请号：JP2008011165

    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

    IPC: C08J3/22 ,  B60C1/00 ,  C08K3/00 ,  C08L7/00 ,  C08L9/00

    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, a rubber composition obtained by the method and a tire obtained by using the composition.
    SOLUTION: This method for producing the rubber composition containing (A) a natural rubber, (B) a polybutadiene 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 polybutadiene 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&INPIT

    Abstract translation: 要解决的问题：提供一种制造确保低滚动阻力而不破坏其破裂特性的橡胶组合物的方法，通过该方法获得的橡胶组合物和通过使用该组合物获得的轮胎。 解决方案：通过添加（A）天然橡胶，（B）聚丁二烯橡胶，（C）增强填料和（D）交联剂）的橡胶组合物的制造方法， （C）增强填料（A）天然橡胶，然后将聚丁二烯橡胶和（D）交联剂混合/捏合（B）到所得到的母料中。 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

    Rubber composition and tire
    34.
    发明专利
    Rubber composition and tire 审中-公开
    橡胶组合物和轮胎

    公开(公告)号：JP2009007422A

    公开(公告)日：2009-01-15

    申请号：JP2007168091

    申请日：2007-06-26

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

    Inventor： YAMADA TSUTOMU

    IPC: C08L7/00 ,  B60C1/00 ,  C08K3/04

    Abstract: PROBLEM TO BE SOLVED: To provide a rubber composition which contains natural rubber compounded therein, has the same low loss property as that of silica, and has a Mooney viscosity at a level equivalent to that of a rubber composition compounded with single carbon black, and to provide a tire using the rubber composition for a tread.
    SOLUTION: This rubber composition is characterized by comprising 100 pts.mass of a rubber component containing the natural rubber as a base polymer, 20 to 50 pts.mass of highly reinforcing carbon black, and 10 to 40 pts.mass of a non-reinforcing carbon black. The nitrogen adsorption specific surface area of the highly reinforcing carbon black is preferably ≥60 m
    2 /g. The nitrogen adsorption specific surface area of the non-reinforcing carbon black is preferably 10 to 50 m
    2 /g. The tire is characterized by using the rubber composition for the tread.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 待解决的问题：为了提供含有天然橡胶配合的橡胶组合物，具有与二氧化硅相同的低损失特性，并且门尼粘度等于与单一碳化合物的橡胶组合物相同的门尼粘度 并且使用该胎面的橡胶组合物来提供轮胎。 解决方案：该橡胶组合物的特征在于包含100重量份的包含天然橡胶作为基础聚合物的橡胶组分，20至50重量份的高度增强的炭黑和10至40重量份的 非增强炭黑。 高强度炭黑的氮吸附比表面积优选为≥60m2 / SP / g。 非增强炭黑的氮吸附比表面积优选为10〜50m 2 / SP / g。 轮胎的特征在于使用用于胎面的橡胶组合物。 版权所有（C）2009，JPO＆INPIT

    PAPER FEEDING ROLLER AND IMAGE FORMING DEVICE
    35.
    发明专利
    PAPER FEEDING ROLLER AND IMAGE FORMING DEVICE 失效

    公开(公告)号：JP2002293448A

    公开(公告)日：2002-10-09

    申请号：JP2001100115

    申请日：2001-03-30

    Applicant: BRIDGESTONE CORP

    Inventor： YAMADA TSUTOMU ,  OSAKI TOSHIYUKI ,  KAWAGOE TAKAHIRO

    IPC: B65H5/06 ,  C08J9/06 ,  F16C13/00

    Abstract: PROBLEM TO BE SOLVED: To provide a paper feeding roller improved in compression permanent deflection and the paper feeding force and having excellent durability without generating a clogging by the paper chips and the toner and without giving a damage to the paper and an image on the paper, and to provide an image forming device provided with the same. SOLUTION: This paper feeding roller is formed by arranging a rubber foaming body, desirably, an ethylene propylene rubber foaming body having Asker C hardness of 15-40 degree and compression permanent deflection of 15% or less, and the image forming device is formed by installing this paper feeding roller. As a raw material of the ethylene propylene rubber foaming body, ethylene propylene rubber having iodine of 35-45 and Mooney viscosity ML1+4 at 100 deg.C of 20-50 is desirably used.

    METHOD FOR MANUFACTURING CONDUCTIVE RUBBER ROLLER
    36.
    发明专利
    METHOD FOR MANUFACTURING CONDUCTIVE RUBBER ROLLER 失效

    公开(公告)号：JP2001191349A

    公开(公告)日：2001-07-17

    申请号：JP2000295696

    申请日：2000-09-28

    Applicant: BRIDGESTONE CORP

    Inventor： YAMADA TSUTOMU ,  OSAKI TOSHIYUKI ,  NAKAJIMA TADASHI ,  KAWAGOE TAKAHIRO

    IPC: G03G15/02 ,  B29C43/02 ,  B29C43/34 ,  B29C43/36 ,  C08J9/06 ,  C08K3/00 ,  C08K5/00 ,  C08L23/16 ,  F16C13/00 ,  G03G15/16

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a conductive rubber roller having fine cells, low in hardness, having no parting line and reduced in the irregularity of electric resistance and an image forming apparatus having a conductive rubber roller mounted therein. SOLUTION: In a method for manufacturing the conductive rubber roller by charging a rubber composition containing a raw material rubber in a split mold and a conductive material to vulcanize and foam the same, the charging amount of the rubber composition is 95-105% of the cavity volume of the split mold and vulcanization pressure is 9.8×10-5-9.8×106 Pa and the finish accuracy of the mating surface of the split mold is 25 μm or less on the basis of ten-point average roughness. The conductive rubber roller manufactured by this method is mounted in an image forming apparatus.

    MANUFACTURE FOR CONDUCTIVE ELASTIC ROLLER, AND THE CONDUCTIVE ELASTIC ROLLER OBTAINED BY METHOD THEREFOR
    39.
    发明专利
    MANUFACTURE FOR CONDUCTIVE ELASTIC ROLLER, AND THE CONDUCTIVE ELASTIC ROLLER OBTAINED BY METHOD THEREFOR 失效

    公开(公告)号：JP2000320536A

    公开(公告)日：2000-11-24

    申请号：JP12973699

    申请日：1999-05-11

    Applicant: BRIDGESTONE CORP

    Inventor： SAKATA JUNJI ,  NAKAJIMA TADASHI ,  YAMADA TSUTOMU

    IPC: B29C39/10 ,  B29C39/24 ,  C08L75/04 ,  F16C13/00 ,  G03G15/08 ,  G03G15/16

    Abstract: PROBLEM TO BE SOLVED: To manufacture a roller, having fine cell with low hardness and having few dispersion in hardness and a cell diameter with satisfactory efficiency by immediately filling a polyurethane forming material containing a polyol component, polyisocyanate component, and foaming agent into a mold, after heating to a boiling point or higher of the foaming agent and agitating it. SOLUTION: A material containing a polyol component, a polyisocyanate component, a foaming agent, and the like is used as a polyurethane forming material. There is a polyether polyal, and the like as the polyol component, and there is a tolylendiisocyanate as the polyisocyanate component. Physical forming agent, whose boiling point is 20 to 60 deg.C, is used as the foaming agent from points of easy to handle, ease of vaporization and foaming, and the like, and there is an n-pentane, isopentane, and the like as the foaming agent. After the forming material is filled in a mold, it is heated to a temperature higher by 5 to 40 deg.C than that of the boiling point of the foaming agent, and it is agitated. After that, the forming material is filled and immediately formed in the mold. It is thus possible to provide a roller having few dispersion in density, hardness, and a cell diameter.

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