公开(公告)号：JPH10195245A

公开(公告)日：1998-07-28

申请号：JP35876196

申请日：1996-12-27

Applicant: BRIDGESTONE CORP

Inventor： YAMAZAKI HIROTAKA ,  TOYOSAWA SHINICHI ,  YAMADA TSUTOMU

IPC: C08L21/00

Abstract: PROBLEM TO BE SOLVED: To obtain a rubber composition with low hardness, capable of decreasing oil bleeding especially at a low temperature regardless of having a low hardness and useful for a paper feeding roller, etc., by formulating a specific low molecular material with a thermoplastic high molecular material. SOLUTION: This rubber composition with low hardness comprises (A) a rubber composition consisting essentially of (i) an oil extended rubber or a mixed rubber of the component (i) with (ii) a non-oil extended rubber, (B) a low molecular material and (C) a thermoplastic high molecular material. Further, the component B has cp viscosity at 100 deg.C, both of the differences between the solubility parameter values of the components B and C, and between the solubility parameter values of an extending oil of the component (i) and the component C are each

公开(公告)号：JPH09316246A

公开(公告)日：1997-12-09

申请号：JP15609196

申请日：1996-05-28

Applicant: BRIDGESTONE CORP

Inventor： YAMAZAKI HIROTAKA ,  YAMADA TSUTOMU ,  TOYOSAWA SHINICHI

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

Abstract: PROBLEM TO BE SOLVED: To provide a paper feeding member capable of reducing an oil bleeding, especially not only at a high temperature but also at a low temperature, stably excellent in paper feeding and paper sending properties, and less in soiling an opposite material such as a paper nipped by rollers. SOLUTION: This rubber composition for paper feeding member is obtained by blending 100 pts.wt. rubber component consisting of an oil-extended rubber as a main component or the oil-extended rubber and a non-oil-extended rubber as main components, or rubber component consisting of the non-oil extended rubber blended with a softening agent as main component, with 10-200 pts.wt. low molecular weight sustaining medium composite material consisting of a low molecular weight material and a medium material having cps viscosity of the low molecular weight material at 100 deg.C, =1.0 difference in a weight ratio between the low molecular weight material and the medium material.

公开(公告)号：JPS6056115A

公开(公告)日：1985-04-01

申请号：JP16561583

申请日：1983-09-08

Applicant: BRIDGESTONE CORP

Inventor： WATABE HIROJI ,  YAMADA TSUTOMU ,  IRAKO KOUICHI ,  ISHIBASHI MASAO ,  MURAKAMI YUUICHI

IPC: F01N3/02 ,  F01N3/022 ,  F01N3/28

Abstract: PURPOSE:To efficiently purify fine particles in exhaust gas from a Diesel-engine, and as well to make it difficult to clog the purifier, by making ceramic carriers carry successively more than two kinds of ceramics different from each other from the inlet side of exhaust gas to the outlet side thereof. CONSTITUTION:For example, one kind of ceramic carriers 1 are used singularly, and a plurality of catalysts 4, 4' which differ from each other are carried by these ceramic carries in a range from the exhaust gas inlet side 2 to the exhaust outlet side 3 so that exhaust gas from a Diesel engine are made in contact, successively with more than two kinds of different catalysts. With this arrangement, as the above-mentioned catalysts, catalyst groups consist of, for example, at least one component selected from the group consisting of copper and copper compounds, at leseat one component selected from the group consisting of molybdenum, vanadium and compounds thereof, and at least one component selected from the group consisting of alkali-metallic compounds, and the like, are used. With this arrangement, fine particles in exhaust gas from a Diesel-engine are effectively purified, and the clogging of the purifier is made difficult.

公开(公告)号：JPS5982944A

公开(公告)日：1984-05-14

申请号：JP19177982

申请日：1982-11-02

Applicant: BRIDGESTONE CORP

Inventor： WATABE HIROJI ,  YAMADA TSUTOMU ,  IRAKO KOUICHI ,  MURAKAMI YUUICHI

IPC: B01D53/94 ,  B01J23/84 ,  B01J23/847 ,  B01J23/88 ,  F01N3/035

Abstract: PURPOSE:To obtain a catalytic medium which burns the captured fine particles at such a low temp. at which no thermal impact is applied on the capturing medium itself by combining a catalyst combined with copper, etc., an alkali metal compd., Mo, etc., and platinum, etc. with titania, etc. CONSTITUTION:A catalyst combined with at least one kind selected from copper and a copper compd., at least one kind selected from an alkali metal compd., at least one kind selected from Mo, V and their compd., and further at least one kind selected from platinum, Rh, Pd and their compd. according to need and at least one kind selected from titania, gamma-alumina and silica-alumina are combined. As a result, the captured fine particles are burned at such a low temp. at which no thermal impact is applied to the capturing medium itself, and the catalytic medium which is highly resistant to heat with less decrease in activity at an elevated temp. is obtd.

公开(公告)号：JP2009007421A

公开(公告)日：2009-01-15

申请号：JP2007168090

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 ,  C08K3/26

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 filler. The nitrogen adsorption specific surface area of the carbon black is preferably ≥60 m
2 /g. The non-reinforcing filler is preferably calcium carbonate. 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 非增强填料。 炭黑的氮吸附比表面积优选为≥60m2 / SP / g。 非增强填料优选为碳酸钙。 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

公开(公告)号：JP2008184538A

公开(公告)日：2008-08-14

申请号：JP2007019241

申请日：2007-01-30

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

Inventor： YAMADA TSUTOMU ,  KANESUGI HIROYUKI ,  AKAMA HIDEHIRO

IPC: C08F290/06 ,  C09J175/14

Abstract: PROBLEM TO BE SOLVED: To provide an ultraviolet curable resin composition giving an ultraviolet-cured resin material having excellent adhesiveness to especially a polyethylene terephthalate (PET) film and excellent heat-resistance and high-temperature high-humidity resistance and useful as an adhesive in the field required to have a long-term reliability such as various printing materials, display materials, electric and electronic part materials, electrooptical part materials for communication, optical part materials and liquid crystal materials.
SOLUTION: The ultraviolet curable resin composition contains a urethane (meth)acrylate oligomer having a weight-average molecular weight of 15,000-40,000, a (meth)acrylate monomer and a photoinitiator. The invention further provides the above resin composition wherein the compounding ratio of the urethane (meth)acrylate oligomer:(meth)acrylate monomer is 75:25 to 55:45 (pts.mass), and the amount of the photoinitiator is 0.1-10 pts.mass based on 100 pts.mass of the above components in total.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种紫外线固化树脂组合物，其特别是聚对苯二甲酸乙二醇酯（PET）膜具有优异的粘合性的紫外线固化树脂材料，并且具有优异的耐热性和高温高湿度，并且可用作 需要具有诸如各种印刷材料，显示材料，电气和电子部件材料，用于通信的电光部件材料，光学部件材料和液晶材料等长期可靠性的粘合剂。 解决方案：紫外线固化树脂组合物含有重均分子量为15,000-40,000的氨基甲酸酯（甲基）丙烯酸酯低聚物，（甲基）丙烯酸酯单体和光引发剂。 本发明还提供了上述聚氨酯（甲基）丙烯酸酯低聚物：（甲基）丙烯酸酯单体的配合比为75:25〜55:45（质量份））的树脂组合物，光引发剂的配合比例为0.1〜10 pts.mass基于上述组件的100点数。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007154165A

公开(公告)日：2007-06-21

申请号：JP2006293511

申请日：2006-10-30

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

Inventor： YAMADA TSUTOMU

IPC: C08J3/24

Abstract: PROBLEM TO BE SOLVED: To efficiently produce a cross-linked rubber having low hardness, small compression set and excellent dimensional accuracy.
SOLUTION: A method for producing the cross-linked rubber is carried out as follows. A liquid rubber is compounded with compounding agents, kneaded and defoamed. The resultant defoamed product is then molded into a desired shape, cross-linked and cured. In the process, a photopolymerization initiator as one of the compounding agents is compounded and the kneading operation is performed by using a planetary mixing apparatus. The cross-linking and curing are conducted by irradiation of ultraviolet light.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了有效地制造硬度低，压缩变形小，尺寸精度优异的交联橡胶。 解决方案：如下进行交联橡胶的制造方法。 将液体橡胶与配混剂混合，捏合和消泡。 然后将得到的消泡产物模塑成所需形状，交联并固化。 在该方法中，将作为配混剂之一的光聚合引发剂配混，并使用行星式混合装置进行捏合操作。 交联和固化通过紫外线照射进行。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007112027A

公开(公告)日：2007-05-10

申请号：JP2005306477

申请日：2005-10-21

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

Inventor： NISHIMURO YOICHI ,  YAMADA TSUTOMU ,  AKAMA HIDEHIRO

IPC: B29C45/14 ,  B29C45/17 ,  B29C45/28

Abstract: PROBLEM TO BE SOLVED: To provide a method for forming an OA blade which is composed of a metal plate and an elastic member without lowering productivity even if a liquid material is used, and a mold therefor.
SOLUTION: A mold cavity 16 in which the metal plate is inserted is an ultraviolet curable composition becoming a material of the elastic member and the whole region in the cavity 16 is irradiated with ultraviolet rays to cure the ultraviolet curable composition.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于形成由金属板和弹性构件组成的OA刮刀的方法，而不降低生产率，即使使用液体材料，以及用于其的模具。 解决方案：插入有金属板的模腔16是成为弹性构件的材料的紫外线固化性组合物，并且用紫外线照射空腔16中的整个区域以固化紫外线固化性组合物。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006267574A

公开(公告)日：2006-10-05

申请号：JP2005085817

申请日：2005-03-24

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

Inventor： YAMADA TSUTOMU ,  OSAKI TOSHIYUKI

IPC: G03G15/00 ,  C08K3/00 ,  C08L9/00 ,  F16C13/00 ,  G03G15/02 ,  G03G15/08 ,  G03G15/16 ,  G03G21/10

Abstract: PROBLEM TO BE SOLVED: To provide a conductive roller free from bleeding of a softener and having low hardness, small compression set and low roller resistance. SOLUTION: The conductive roller 1 comprises a shaft 2 and an elastic layer 3 formed on the periphery of the shaft 2, wherein the elastic layer 3 is formed using a rubber composition prepared by blending a component (A): polybutadiene rubber and polyisoprene rubber having a cis-1,4-bond content of ≥90% with a component (B): liquid polyisoprene rubber and a component (C): a conductive agent, wherein the mass ratio (BR/IR) between the polybutadiene rubber (BR) and the polyisoprene rubber (IR) in the component (A) is 90:10 to 60:40, the component (B) is blended in an amount of 10-40 parts by mass based on 100 parts by mass of the component (A), and a content of the component (C) is 12.4-20.1 mass%. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种没有软化剂渗色的导电辊，具有低硬度，小压缩永久变形和低耐辊性。 导电辊1包括轴2和形成在轴2的周边上的弹性层3，其中弹性层3使用通过将组分（A）：聚丁二烯橡胶和 具有组分（B）的顺式-1,4-键含量≥90％的聚异戊二烯橡胶：液体聚异戊二烯橡胶和组分（C）：导电剂，其中聚丁二烯橡胶之间的质量比（BR / IR） （A）中的（BR）和聚异戊二烯橡胶（IR）为90:10〜60:40，相对于100质量份的组分（B），组分（B）的配合量为10〜40质量份 成分（A），成分（C）的含量为12.4〜20.1质量％。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2004029690A

公开(公告)日：2004-01-29

申请号：JP2002253066

申请日：2002-08-30

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

Inventor： OSAKI TOSHIYUKI ,  YAMADA TSUTOMU

IPC: G03G15/00 ,  C08J9/06 ,  F16C13/00 ,  G03G15/02 ,  G03G15/06 ,  G03G15/08 ,  G03G15/16 ,  G03G21/10

Abstract: PROBLEM TO BE SOLVED: To provide a conductive roller which has superior fouling resistance in spite of a single-layer structure provided with no surface coat layer and an image forming device which is mounted with the conductive roller. SOLUTION: The conductive roller is made of a rubber composition containing: (A) 100 mass pts. ethylene propylene rubber of 5 to 25 in Mooney viscosity ML 1+4 at 100°C or 100 mass pts. ethylene propylene rubber obtained by blending ethylene propylene rubber of 5 to 25 in Mooney viscosity ML 1+4 at 100°C and ethylene propylene rubber of 25 or more in Mooney viscosity ML 1+4 at 100°C so that the Mooney viscosity ML 1+4 at 100°C is 5 to 25; (B) a 5 to 30 mass pts. plasticizer; and (C) a 1 to 80 mass pts. conductive material. The image forming device is mounted with the conductive roller. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种具有优异的耐污染性的导电辊，尽管没有提供没有表面涂层的单层结构和安装有导电辊的图像形成装置。

解决方案：导电辊由橡胶组合物制成，含有：（A）100质量份。 乙烯丙烯橡胶在100℃或100质量ppm的门尼粘度ML 1 + 4 中为5至25。 乙烯丙烯橡胶通过在100℃下以门尼粘度ML 1 + 4 混合乙烯丙烯橡胶为5〜25，门尼粘度ML 1 + 4的乙丙橡胶为25以上， / SB>，100℃下的门尼粘度ML 1 + 4 为5〜25; （B）5〜30质量份。 增塑剂; 和（C）1〜80质量份。 导电材料。 图像形成装置安装有导电辊。 版权所有（C）2004，JPO