公开(公告)号：JPH02310103A

公开(公告)日：1990-12-25

申请号：JP13002189

申请日：1989-05-25

Applicant: BRIDGESTONE CORP

Inventor： NAKAGAWA SUMUTO ,  KAWASAKI KIYOTO ,  YOSHIKAWA MASAHITO ,  SUGIYAMA HIDEO

IPC: B60C1/00 ,  B60C9/00 ,  B60C9/04 ,  B60C9/08 ,  D07B1/06

Abstract: PURPOSE:To mainly improve resistance to corrosion fatigue property by specifying the composition of coating rubber layer in which metal cords are buried, carbon contents of the metal cords and the tensile strength of filament, respectively, in tires using specific metal cords for carcass plies. CONSTITUTION:A tire 1 has bead part 2, side wall part 3, shoulder part 4 and tread part 5, and at least a carcass layer 7 is furnished therein. A metal cord of a stranded construction having, on its outermost surface, a layer plated with cobalt or cobalt metal is used for the carcass ply of the carcass layer 7. In this case, organic cobalt salt and sulphur are mixed in the coating rubber layer in which the metal cord is buried at less than 0.1 weight part and at 0.5 to 4 weight parts, respectively, as against 100 weight parts of rubber ingredient. Furthermore, the carbon contents of the metal cord and the tensile strength of filament are respectively set at 0.75 to 0.90 weight percent and over 320kg/s.q. mm.

公开(公告)号：JPH01177390A

公开(公告)日：1989-07-13

申请号：JP42388

申请日：1988-01-06

Applicant: BRIDGESTONE CORP

Inventor： NAKAGAWA SUMUTO ,  KAWASAKI KIYOTO ,  YOSHIKAWA MASAHITO

IPC: B29D30/40 ,  C25D7/06

Abstract: PURPOSE:To improve adhesive force to rubber by electroplating Co on the surface of a metallic wire utilized as a metallic wire rod for reinforcing a rubber product such as a tire and completely removing residual plating liquid and washing the metallic wire and forming it into a twisted cord and heat- treating it at specified temp. CONSTITUTION:A wire rod made of iron-base low alloy, amorphous alloy and stainless steel which is utilized as a metallic wire for reinforcing a rubber product by inserting and joining it into the rubber product or a metallic wire rod plated with brass,bronze, copper and zinc is electroplated in an aqueous cobalt salt aq. soln. used as plating liquid and a plated cobalt layer having e.g. 500-4,000Angstrom film thickness is formed on the surface of the metallic wire rod. This wire rod plated with cobalt is washed by ultrasonic washing and a jet flow to completely washing and removing the residual plating liquid and thereafter formed into a twisted cord. Further it may be formed into the twisted cord before performing the cobalt plating treatment. Then the uppermost surface part of the plated cobalt layer on the surface is oxidized by heat-treating this twisted cord at 100-350 deg.C and thereby the adhesion to rubber is improved.

公开(公告)号：JPS6455478A

公开(公告)日：1989-03-02

申请号：JP21118287

申请日：1987-08-25

Applicant: BRIDGESTONE CORP

Inventor： KATO TAMOTSU ,  OTANI KOJI ,  MUTA SUSUMU ,  YOSHIKAWA MASAHITO

IPC: F16K3/18

Abstract: PURPOSE:To improve the durability of a gate valve and reduce the process of maintenance by mounting an annular sealing member which can be driven by an actuator to project from the periphery of a through-hole in a housing. CONSTITUTION:There are both annular sealing members 11A and 11B which are, respectively, driven by hydraulic actuators 6A and 6B to project in the forward and rear direction of a valve member 2 from the periphery of through- hole 3A and 3B in a housing 1. When the valve member 2 is moved, the sealing members 11A and 11B are separated therefrom and when the valve member 2 stops moving, the sealing members 1A and 11B are brought into close contact with the valve member 2. Therefore, during the opening and closing operation of a valve, the sealing members 11A and 11B can be prevented from wear and damage due to biting of foreign matter.

公开(公告)号：JPS6339266B2

公开(公告)日：1988-08-04

申请号：JP1723083

申请日：1983-02-04

Applicant: BRIDGESTONE CORP

Inventor： OOYACHI TOMIO ,  TAKAHASHI MINORU ,  IZUHARA KOICHI ,  AKYAMA SETSUO ,  YOSHIKAWA MASAHITO

IPC: C08J7/00 ,  A63B37/00 ,  A63B37/14 ,  A63B45/00 ,  B29C71/04

公开(公告)号：JPS63179937A

公开(公告)日：1988-07-23

申请号：JP1130887

申请日：1987-01-22

Applicant: BRIDGESTONE CORP

Inventor： NIWA HIDEYUKI ,  AKIYAMA SETSUO ,  YOSHIKAWA MASAHITO ,  NAITO TOSHIO ,  HONDA TOSHIO

IPC: C08J7/00 ,  C08J7/04

Abstract: PURPOSE:To easily obtain the titled film having excellent scratch resistance and abrasion resistance, in high efficiency, by evaporating an organic silicon compound in a plasma polymerization process singly without using a carrier gas stream. CONSTITUTION:An organic silicon compound (preferably dime thoxydimethylsilane, etc.) is evaporated in a plasma polymerization process without passing a carrier gas to form the objective film on a surface of a plastic material. The objective film contains Si, O and C and the atomic ratio of O/Si is 1-2.5. The plasma polymerization of the organic silicon compound is prefer ably carried out in high vacuum of about 5X10 Torr. The thickness of the hardened protecting film is preferably 0.5-3mu from the viewpoint of productivity and economy.

公开(公告)号：JPS62189117A

公开(公告)日：1987-08-18

申请号：JP24627886

申请日：1986-10-15

Applicant: BRIDGESTONE CORP

Inventor： YOSHIKAWA MASAHITO ,  OGINO TAKAO ,  TOKI SHIGEYUKI ,  NAITO TOSHIO ,  HONDA TOSHIO

IPC: C08J5/12 ,  B29C35/02 ,  B29K21/00 ,  B29L9/00 ,  B32B15/06

Abstract: PURPOSE:To enable the titled material to keep stable adhesiveness for a long period of time by improving thermal aging properties, by a method wherein an rubber compos ite is vulcanized and stuck on the upper part of a cobalt or cobalt alloy film, which has been formed on the surface of a base through adhesion, by performing hot press bonding. CONSTITUTION:A cobalt or cobalt alloy film is formed on the surface of a metallic base by a dry plating method such as vacuum evaporation or sputtering or ionic plating or ion beam sputtering or ECR method, or electric plating or electroless plating method. Sulphur vulcanization or organic sulphur vulcanization is applied to the upper part of the same by making use of a 0.5-4wt part of rubber composite and sulphur contents to 100wt part rubber contents. In this case, a rubber series composite material whose adhesion is favorable is obtained by sticking firmly the cobalt or cobalt alloy film and vulcanized rubber composite to each other by performing only press bonding at the temperature to the same extent as ordinary vulcanization. In addition to the above, as a quantity of sulphur can be reduced and the organic cobalt salt can be reduced or compounding of the same can be eliminated, adhesion hardly deteriorates even if an unvulcanized rubber composite is kept for a long period of time and thermal aging properties of vulcanized rubber can be improved remarkably.

公开(公告)号：JPS59123661A

公开(公告)日：1984-07-17

申请号：JP22860582

申请日：1982-12-29

Applicant: Bridgestone Corp

Inventor： AKIYAMA SETSUO ,  ISHIKAWA HIKARI ,  FUKUURA YUKIO ,  YOSHIKAWA MASAHITO ,  NAITOU TOSHIO

IPC: B32B25/08

公开(公告)号：JPS59114054A

公开(公告)日：1984-06-30

申请号：JP22402482

申请日：1982-12-22

Applicant: Bridgestone Corp

Inventor： FUKUURA YUKIO ,  NIGIMURA TAKASHI ,  AKIYAMA SETSUO ,  YOSHIKAWA MASAHITO ,  NAITOU TOSHIO

IPC: B32B1/02 ,  B29C49/26 ,  B32B25/08 ,  B32B25/10

公开(公告)号：JP2014231449A

公开(公告)日：2014-12-11

申请号：JP2013112540

申请日：2013-05-29

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

Inventor： MIYANO MARI ,  NAKAMURA SATOSHI ,  TAKENOUCHI HIDEAKI ,  IWABUCHI YOSHINORI ,  SHIINO OSAMU ,  YOSHIKAWA MASAHITO

IPC: C01B33/025

Abstract: 【課題】発光特性を有する珪素微粒子の収率を向上させることが可能な珪素微粒子の製造方法を提供する。【解決手段】本発明に係る珪素微粒子の製造方法は、珪素粒子と炭化珪素粒子とを含む第1複合粉体を得る工程A(S101)と、酸エッチング液を用いて第1複合粉体に含まれる珪素粒子の粒径を小さくすることによって、珪素微粒子と炭化珪素粒子とを含む第2複合粉体を得る工程B(S102)と、第2複合粉体をフッ酸に浸漬させることによって、第2複合粉体に含まれる珪素微粒子の表面に水素終端を形成させて、第3複合粉体を得る工程C(S103)とを含み、第3複合粉体では、フーリエ変換赤外線吸収スペクトル法(FT−IR)による測定結果において、786cm−1近傍のスペクトル値を基準値として、2086cm−1近傍のスペクトル値が、0.4以上である。【選択図】図1

Abstract translation: 要解决的问题：提供一种能够提高具有发光特性的硅微粒的产率的硅微粒的制造方法。解决方案：提供一种生产硅微粒的方法，包括：步骤A（S101），获得第一 包括硅颗粒和碳化硅颗粒的复合粉末; 使用酸蚀刻液将包含在第一复合粉末中的硅粒子的粒径降低的步骤B（S102），得到包含硅微粒和碳化硅粒子的第二复合粉末; 和将第二复合粉末浸入氢氟酸中的步骤C（S103），从而在第二复合粉末中包含的硅微粒的表面上形成氢终止物，得到第三复合粉末，关于第三复合粉末， 在傅里叶变换红外吸收光谱法（FT-IR）测量结果中，光谱值接近786cma为标准值，接近2,086 cm的光谱值为0.4以上。

公开(公告)号：JP2014156365A

公开(公告)日：2014-08-28

申请号：JP2013026898

申请日：2013-02-14

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

Inventor： NAKAMURA SATOSHI ,  MIYANO MARI ,  SHIINO OSAMU ,  YOSHIKAWA MASAHITO

IPC: C01B33/025

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing fine silicon particles with a high yield.SOLUTION: A method for producing fine silicon particles comprises: a step A of heating a precursor obtained by drying a mixture comprising a silicon source and a carbon source under an inert atmosphere in a region, formed by a non-carbon material, by heating means; a step B of obtaining a mixed powder comprising fine silicon particles, fine silicon oxide particles, and fine silicon carbide particles by quickly cooling a produced gas produced by heating the precursor under the inert atmosphere in the region formed by the non-carbon material; a step C of etching the mixed powder by immersing it in an etching solution containing hydrofluoric acid; and a step D of performing centrifugal separation treatment of a produced solution obtained by immersing the mixed powder in the etching solution to extract the fine silicon carbide particles contained in the produced solution.

Abstract translation: 要解决的问题：提供一种以高产率生产细硅颗粒的方法。解决方案：一种生产精细硅颗粒的方法包括：步骤A，加热通过干燥包含硅源和碳源的混合物获得的前体 在由非碳材料形成的区域中的惰性气氛下，通过加热装置; 通过在由非碳材料形成的区域中快速冷却在惰性气氛下加热前体产生的产生气体，获得包含细硅颗粒，氧化硅微粒和细碳化硅颗粒的混合粉末的步骤B; 将混合粉末浸渍在含有氢氟酸的蚀刻溶液中的步骤C; 以及通过将混合粉末浸渍在蚀刻溶液中而获得的生产溶液进行离心分离处理以提取所制备的溶液中所含的细小碳化硅颗粒的步骤D.