161 |
Electrically viscous fluid |
JP13962895 |
1995-06-06 |
JPH08333595A |
1996-12-17 |
SUGIYAMA TATSUO; SHINOHARA MIKIYA; SHIMADA MUNEKATSU |
PURPOSE: To obtain a practical electrically viscous fluid capable of giving a larger induced shear stress in the same electric field strength than that by a conventional electrically viscous fluid, capable of giving the remarkably large induced shear stress, because a larger electric field strength can be applied, and large in the change width of the viscosity. CONSTITUTION: This electrically viscous fluid comprises an electrically insulating medium and polarizable fine particles dispersed in the medium as dispersed particles. Therein, the polarizable fine particles are γ-alumina particles wherein the γ-alumina particles having particle diameters of <=3μm are contained in an amount of <=7wt.%, and wherein 0.1-6.0wt.% of water is adhered to the surfaces of the γ-alumina particles. |
162 |
New glucamine derivative |
JP33590495 |
1995-11-30 |
JPH08225500A |
1996-09-03 |
WIRTH HERMANN O; FRIEDRICH HANS-HELMUT |
PROBLEM TO BE SOLVED: To obtain a new compound useful as an additive for a lubricant and capable of imparting excellent extreme pressure characteristics and antiwear characteristics to the lubricant.
SOLUTION: This compound is represented by formula I [(n) is 4; X is S, O or CH
2; R
1 is a 1-22C alkyl; R
2 is H, a 1-8C alkyl or CH
2-CH(OH)-CH
2-X-R
1]. The compound represented by formula I is obtained by reacting a glucamine represented by formula II (Z is H, a 1-8C alkyl or the like) with a glycidyl compound represented by formula III. The additive represented by formula I is particularly suitable for use in non-automatics and, first and foremost, in automatic transmissions of automobiles. Furthermore, they are most effective in motor oils, diesel engine oils or turbine oils.
COPYRIGHT: (C)1996,JPO |
163 |
Method for producing lubricating base oils |
JP21568692 |
1992-07-22 |
JP2521873B2 |
1996-08-07 |
ARIMA YOSHIO; MATSUNAGA MITSUFUMI |
|
164 |
Electroviscous fluid composition |
JP14094694 |
1994-05-31 |
JPH07331275A |
1995-12-19 |
SHIHO KOUJI; FUTAMI SATOSHI; KASAI KIYOSHI |
PURPOSE:To obtain the subject electroviscous fluid composition having a high electroviscous effect, excellent in storage stability, heat resistance, durability and scuffing resistance, exhibiting a stable current value and low in consumption of electric power by dispersing a specified nonhydraus composite particle in an electroviscous insulating medium. CONSTITUTION:In this electroviscous fluid composition, (A) a nonhydraus composite particle (preferably having 1 to 50mum average particle size) prepared by coating an organic polymer compound particle (e.g. sulfonated cross-linked divinylbenzene polymer particle) having amino groups and/or oxygen-containing functional groups (preferably sulfonic acid group, hydroxyl group, etc.) on the surface with a semiconductor and/or an insulating material is contained in (B) an electric insulating medium (e.g. diphenyl chloride) and the content of the component (A) is preferably 10 to 60wt.%. In addition, preparation of the component (A) is carried out recommendably, e.g. by producing the polymer particle according to, e.g. a method for polymerization of a functional group- containing monomer and subsequently forming a coating layer composed of a semiconductor and/or an insulating material such as titanium oxide, copper oxide or In2O-SnO on the particle surface according to the hydrolysis method. |
165 |
Useful hydrocarbyl-substituted c ▲ 4 under as additives in oil quality composition ▼ ~c ▲ under 10 ▼ dicarboxylic acid, anhydride or ester Substance |
JP16220586 |
1986-07-11 |
JPH07116458B2 |
1995-12-13 |
ジエイコブ・エマート; マルコム・ウオドウープス; ロバート・デイーン・ランドバーグ |
Hydrocarbyl substituted C4 to C10 monounsaturated dicarboxylic acid, anhydrides or esters, e.g. polyisobutenyl succinic anhydride, preferably made by reacting polymer of C2 to C10 monoolefin, preferably polyisobutylene, havirg a molecular weight of about 1500 to 5,000, preferably with a C4 to C10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 1.05 to 1.25 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting materials are useful per se as oil additives, or may be further reacted with amines, alcohols, amino alcohols, boric acid, etc. to form dispersants. |
166 |
Detergent composition |
JP201995 |
1995-01-10 |
JPH07258676A |
1995-10-09 |
SUTEIIBUN JIEEMUZU KUTSUKU; SHIYOON PATORITSUKU OKOONAA; JIYON KUROFUOODO |
PURPOSE: To provide a detergent compsn. which can enhance the capability of cleaning pistons within internal combustion engines by including a specified alkaline earth metal hydrocarbyl phenate.
CONSTITUTION: This detergent compsn. comprises: (A) an additive concentrate comprising (i) a lubricating oil and (ii) a lubricating oil soluble (non) sulphurized alkaline earth metal hydrocarbyl phenate modified by a reaction to incorporate, in an amt. of 2 to 40 (wt)% based on the wt. of the concentrate (component A), either (a) at least one carboxylic acid represented by the formula (wherein R represents a 10-24C alkyl or alkenyl; and R
1 represents H, a 1-4C alkyl, -CH
2-COOH or an anhydride or ester thereof) or (b) a 36-100C di- or polycarboxylic acid or an anhydride or ester thereof, the concentrate pref. having a BN greater than 300 and a viscosity at 100°C of less than 1,000 cSt,; and (B) an additive concentrate comprising the component i and the phenate which has not been modified or has been modified by a reaction to incorporate, in an amt. of less than 0.1% based on the wt. of the concentrate (component B), the component ii (component a or b), the additive concentrate pref. having a BN of less than 300.
COPYRIGHT: (C)1995,JPO |
167 |
Thermoplastic sliding material |
JP10366091 |
1991-02-18 |
JPH0778230B2 |
1995-08-23 |
DEKI HIROSHI; YAMAZAKI ISAO; NISHIO KYOSHI |
|
168 |
Manufacturing method of the sliding plate for a solid lubricant |
JP18262890 |
1990-07-12 |
JPH0742474B2 |
1995-05-10 |
巖 畔津; 常喜 畔津; 秀明 畔津 |
|
169 |
Electroviscous fluid |
JP21457693 |
1993-08-30 |
JPH0762374A |
1995-03-07 |
KATO MITSUAKI; YAMAMOTO YASUNOBU |
PURPOSE:To increase electroviscous effects by dispersing, in an electrically insulating oily medium, a powder obtd. by baking a ligninsulfonate. CONSTITUTION:A cation of sulfonate group of a ligninsulfonate is not specifically limited. Pref. electrically insulating oily media are a silicone oil, a mineral oil, and a halogenated arom. oil, though not specifically limited. The baking temp. is pref. 465 deg.C or lower. For example, an electroviscous fluid is produced by baking sodium ligninsulfonate on the market at 400 deg.C for 4hr in air, grinding it with a ball mill, taking out particles with outer sizes of 63mum or lower only, drying the particles in a vacuum at 200 deg.C for 5hr, mixing the resulting baked sodium ligninsulfonate particles into a silicone oil in a wt. ratio of the particles to the oil of 40:60, and dispersing the particles homogeneously with a ball mill. |
170 |
Polyimide resin composition for sliding material |
JP2799393 |
1993-02-17 |
JPH06240273A |
1994-08-30 |
NIWA HIROSHI; SHIMOKUSUZONO TAKUMI |
PURPOSE:To obtain a polyimide resin composition which can give a sliding material excelling in heat resistance, sliding properties and abrasion resistance and having an easily controllable dimensional accuracy by adding a plurality of specified resins to a resin composition comprising a specified polyimide resin and specified graphite. CONSTITUTION:The composition is prepared by adding 10-50 pts.wt. polyetherketone resin of formula II and 5-20 pts.wt. tetrafluoroethylene resin to 100 pts.wt. resin composition comprising 50-90wt.% thermoplastic polyimide resin of formula I (wherein X is a direct bond, a 1-10 C hydrocarbon group, hexafluorinated isopropylidene, carbonyl, thio or sulfone; and R1 to R4 are each H, lower alkyl, lower alkoxyl, Cl or Br; and Y is a tetravalent group selected from among a 2 C or higher aliphatic group, a cycloaliphatic group, a monocyclic group, a condensed polycyclic group and a noncondensed polycyclic aromatic group composed of aromatic groups bonded to each other directly or through bridging members) and 50-10wt.% graphite of a fixed carbon content of 50-90wt.% obtained by graphitizing a non-phenolic resin starting material (e.g. pitch). |
171 |
Composition for hydraulic oil-lubricant-fluid coupler |
JP33502892 |
1992-11-20 |
JPH0641566A |
1994-02-15 |
UMEMOTO NOBORU; OOENOKI HITOSHI; KURIBAYASHI TOSHIAKI; KATO TOMOHIRO |
PURPOSE:To provide the stable composition used for hydraulic oil.lubricant.fluid couplers and substantially not increased in its viscosity even when continuously used at a high temperatures. CONSTITUTION:The object can be achieved with the composition produced by subjecting an organopolysiloxane to an epoxy-modification treatment or adding an epoxy group-containing compound to the organopolysiloxane. The composition is preferably further mixed with an anti-oxidizing agent for the further improvement in the stability. |
172 |
Production of lubrication base oil |
JP21568692 |
1992-07-22 |
JPH0641548A |
1994-02-15 |
ARIMA YOSHIO; MATSUNAGA MITSUFUMI |
PURPOSE:To carry out the production of a hydro-refined general-purpose lubrication base oil and a lubrication base oil having a high viscosity index in single reactor in contrast with conventional process to use separate reactors containing different catalysts and to produce the lubrication base oils without causing the lowering of the catalytic activity over a long period. CONSTITUTION:A general-purpose lubrication base oil and a lubrication base oil having a high viscosity index are produced in single reactor by using a catalyst obtained by selecting at least one kind of metal component from the group VIA and group VIII elements of the 4th period of the periodic table as an essential component and supporting the component on a refractory oxide carrier, especially a catalyst obtained by supporting molybdenum, nickel and phosphorus on alumina carrier and alternately carrying out the hydro-refining of a production intermediate for sulfur-containing lubrication base oil and the isomerization of a wax. |
173 |
Removal of halogenated aromatic compound from hydrocarbon oil |
JP18856492 |
1992-06-05 |
JPH0625691A |
1994-02-01 |
KITAMURA SHUJI; YANO TSUNEO; TANIMOTO FUMIO |
PURPOSE:To make a hydrocarbon oil containing a small amount of halogenated aromatic compounds safely handleable by removing the halogen compounds therefrom. CONSTITUTION:A hydrocarbon oil mainly consisting of nonaromatic hydrocarbon oil and containing a small amount of halogenated aromatic compounds is brought into contact with a heat-resistant alkaline polar solvent at 100-300 deg.C in the presence of an alkaline substance to remove the halogenated aromatic compounds from the hydrocarbon oil. |
174 |
Composite solid lubricant |
JP6000591 |
1991-03-25 |
JPH05271675A |
1993-10-19 |
Akihiko Matsui; 昭彦 松井 |
PURPOSE: To improve the lubricating characteristics in a vacuum and adhesive properties of a composite solid lubricant by forming a mixing layer by ion implantation at the interface of a parent material and an MoS
2 film.
CONSTITUTION: On the surface of a parent material or on the surface of a thin ceramic film formed on the parent material is formed an MoS
2 film in a thickness less than the depth allowing ion implantation. The implantation is conducted from the side of the MoS
2 film to form a 0.2-0.3μm-thick mixing layer at the interface of the MoS
2 film and the parent material. If necessary, on the outer surface of the MoS
2 film is formed another MoS
2 film.
COPYRIGHT: (C)1993,JPO&Japio |
175 |
Slidable resin composition |
JP4016092 |
1992-01-30 |
JPH05209130A |
1993-08-20 |
NAKANISHI TETSUO; ISOBE KENICHI |
PURPOSE:To obtain a slidable resin composition capable of providing molded articles of resin having excellent sliding properties free from clouding and pollution and of supplying molded articles of resin having excellent sliding properties even in the case of using a crystalline resin. CONSTITUTION:50-99.9 pts.wt. synthetic resin is blended with 0.1-50 pts.wt. higher fatty acid amide-modified polysiloxane to give a slidable resin composition. |
176 |
Electrically viscous liquid |
JP33430391 |
1991-11-22 |
JPH05140580A |
1993-06-08 |
NAKAMURA TAKASHI; KOBAYASHI AKIHIKO |
PURPOSE:To provide a thermally stable electrically viscous liquid giving a large electrically viscous effect and a good dispersing property by dispersing fine particles comprising a mixture of a specific polymeric electrolyte and a polyether in an electrically insulating viscous liquid. CONSTITUTION:(A) Fine particles comprising a mixture of (i) a polymeric electrolyte preferably produced by neutralizing a carboxy aryl group-containing organopolysiloxane of formula I (R<1> is alkyl; R<2> is alkylene; Q is group of formula II, etc.) with a base containing a monovalent or divalent metal and (ii) a polyether are dispersed in (B) an electrically insulating liquid preferably such as a diorganopolysiloxane oil to provide the objective liquid causing no abrasion with peripheral apparatuses. |
177 |
Semisolid-like aqueous lubricant |
JP32231791 |
1991-11-12 |
JPH05132690A |
1993-05-28 |
OSANAI TOSHIHIKO; OOTA YOSHITOMO |
PURPOSE:To obtain a semisolid-like lubricant consisting of a specific amount of water, an alkylene oxide derivative, silicon dioxide and a surfactant, useful for lubricating portion of plain bearing, antifriction bearirng, etc., mainly used in water, and having extreme-pressure resistant property and abrasion resistance. CONSTITUTION:The objective lubricant consists of (A) 100 pts.wt. water, (B) 20-60 pts.wt. alkylene oxide derivative, preferably alkylene glycol, having 10-1500cSt dynamic viscosity at 40 deg.C (C) 5-20 pts.wt. silicon dioxide or surface- treated silicon dioxide and (D) 0.5-5 pts.wt. surfactant, preferably nonionic surfactant. |
178 |
Lubricating oil for continuously casting cu and sn-containing steel |
JP27235991 |
1991-10-21 |
JPH05111739A |
1993-05-07 |
TOKUMITSU NAOKI |
PURPOSE:To produce a bar steel having excellent surface characteristic from molten steel having high Cu and Sn contents by adding the specific grain size of Ni powder to rapeseed oil at the specific quantity. CONSTITUTION:The Ni powder regulated to <=100mum average grain size is stirred and suspended into the rapeseed oil with 3-30wt.% The Ni powder added to the rapeseed oil for continuously casting the billet for bar steel flows together with the oil, and Ni is alloyed on the surface layer of the billet. In order to improve the suspendibility of the Ni powder, coupling treatment is beforehand executed to the Ni powder with chromic acid or vinylsilane. |
179 |
Electroviscous fluid |
JP1457491 |
1991-02-05 |
JPH04253795A |
1992-09-09 |
YOSHIMURA RYOICHI; TOYAMA JIRO; AKATSUKA TAKATOSHI |
PURPOSE:To provide an electroviscous fluid for transmitting a torque between two conductive members by a placing the fluid between the members with a large ratio of shear stress to current density and a small consumption of electric power. CONSTITUTION:An electroviscous fluid wherein a chemically modified chitin is dispersed in an electrical insulation liq. |
180 |
JPH04503371A - |
JP50403990 |
1990-02-20 |
JPH04503371A |
1992-06-18 |
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