Abstract: A lubricant additive obtained by heating an acidic phosphate ester and/or a phosphite ester (A) represented by the general formula (I): (wherein A represents H or OH, m is 0 or 1, when m is 0, A is OH, and when m is 1, A is H or OH, R1 and R2 each independently represent H, or a hydrocarbon group having 1 to 18 carbon atoms that may contain at least one O and S, both R1 and R2 are not simultaneously hydrogen atoms) and an imide-based dispersant containing boron (B) at a temperature of 120 to 150° C. for 5 hours or more, which can concurrently enhance excellent wear resistance, excellent scoring resistance and prolong surface fatigue life while keeping the balance of these properties at an optimum level.

Abstract: Disclosed is a lubricant base oil composition that comprises (a) from 80 to 98% by mass of a naphthenic synthetic lubricant base oil having a flash point of not lower than 140° C. and (b) from 2 to 20% by mass of an alcohol/fatty acid ester having a flash point of not lower than 150° C. of which the alcohol has a gem-type dimethyl structure, or comprises (a) from 85 to 99% by mass of a naphthenic synthetic lubricant base oil having a flash point of not lower than 140° C. and (c) from 1 to 15% by mass of a mineral oil having a kinematic viscosity at 40° C. of from 0.9 to 9.6 mm2/sec, a boiling point under normal pressure of from 150 to 400° C. and a % CA measured through ring analysis (in n-d-M process) of at most 10%.

Abstract: A massage device capable of applying favorable pressure stimulation owing to expansion and shrinking of air bags irrespective of thickness of portions to be massaged such as legs or arms. The massage device has supporting bodies, strap bodies made of pliable material that are attached to the supporting bodies at their ends to form U-shaped sections, air bags provided at inner surfaces of strap bodies for receiving portions of a human body such as legs or arms to be massaged, and an air supply means for expanding and shrinking of the air bags. Upon locating portions to be massaged on the strap bodies, the strap bodies assume shapes that fit along the shapes of the portions of the body to be massaged to thus support the portions to be massaged on the strap bodies. Pressuring stimulation can then be applied to the portions to be massaged by making the air bags perform expansion and shrinking.

Abstract: There is disclosed a lubricating oil composition for cellulose base wet friction material which comprises a base oil blended with (A) a boron-containing imide base dispersant (e.g. boron treated polyalkenyl succinimide) having a weight-average molecular weight in the range of 500 to 3000 and having a ratio by weight of boron to nitrogen (B/N) in the range of 0.1 to 1.5 in such a blending amount that the boron content and the nitrogen content each derived from the component (A) are made to be at least 60 ppm by weight and at least 100 ppm by weight, respectively based on the base oil. The above lubricating oil composition enhances peeling resistant durability for a friction material, especially a cellulose base friction material without impairing the wear resistance or scoring resistance of a steel material element, and is well suited for use in a cellulose base friction material for a starting and running device and a transmission clutch that are used in an automatic transmission of an automobile.

Abstract: Derivatives of bicyclo[2.2.1]heptane in the invention have a high traction coefficient under high temperature and an excellent viscosity characteristic under low temperature and are useful for the fluid for a traction drive, and a method in the invention produces such derivatives economically and efficiently.

Abstract: A lubricant additive obtained by heating an acidic phosphate ester and/or a phosphite ester (A) represented by the general formula (I): 1

Abstract: A lubricant additive obtained by heating an acidic phosphate ester and/or a phosphite ester (A) represented by the general formula (I): (wherein A represents H or OH, m is 0 or 1, when m is 0, A is OH, and when m is 1, A is H or OH, R1 and R2 each independently represent H, or a hydrocarbon group having 1 to 18 carbon atoms that may contain at least one O and S, both R1 and R2 are not simultaneously hydrogen atoms) and an imide-based dispersant containing boron (B) at a temperature of 120 to 150° C. for 5 hours or more, which can concurrently enhance excellent wear resistance, excellent scoring resistance and prolong surface fatigue life while keeping the balance of these properties at an optimum level.

Abstract: New sulfur-containing organophosphorus compounds of general formulae (I) and (II) and processes for producing the same; additives for lubricating oils, which contain the sulfur-containing organophosphorus compounds; and lubricating oil compositions satisfying requirements of extreme-pressure lubrication and abrasion resistance under severe conditions of high loads imposed, on automatic or continuously variable transmissions or the like. In said formulae, R1 is a hydrocarbon group having 6 to 20 carbon atoms; R2 is a divalent hydrocarbon group having 1 to 6 carbon atoms; n is an integer of 1 to 3; p is an integer of 0 to 2; and q is an integer of 0 or 1, with the proviso that p and q cannot be 0 at the same time.

Abstract: A massaging system includes a base sheet carrying a plurality of expandable bags arranged in a plane of the base sheet, and a charging and discharging unit connected to the bags for selectively supplying and discharging a pressurized fluid into and from the bags so as to inflate and deflate the bags, selectively. At least one applicator projects from each of the bags in contact with a portion of a human body for applying a massaging action. Each bag has a flexible top end capable of deforming into a curved contour when being inflated. The applicator is made of a hard material and projects directly from the top end wall of the bag as an integral part of the bag such that the applicator is caused to displace in a direction different from a direction along which the bag inflates and deflates principally, as a consequence of that the flexible top end wall deforms into the curved contour.

Abstract: Derivatives of bicyclo[2.2.1]heptane in the invention have a high traction coefficient under high temperature and an excellent viscosity characteristic under low temperature and are useful for the fluid for a traction drive, and a method in the invention produces such derivatives economically and efficiently.

Abstract: There is disclosed a traction drive fluid which comprises a base oil blended with (A) an active phosphate ester base compound, (B) a boron-containing imide base dispersant (e.g. polyalkenyl succinimide treated with a boron compound) and (C) a boron-free imide base dispersant (e.g. polyalkenyl succinimide) in such blending amounts that the phosphorus content derived from the component (A) and the boron content derived from the component (B) are each 100 to 600 ppm, preferably 60 to 300 ppm by weight, and at least 60 ppm by weight, respectively based on the base oil, and the boron-free imide base dispersant (C) is blended so that the ratio by weight of the nitrogen in the component(C) to the boron in the component (B) is at least 1, preferably 1 to 6.

Abstract: A lubricating oil composition is herein disclosed which comprises as the main compounds, (A) a base oil comprising a mineral oil or a synthetic oil; (B) a hindered phenol compound represented by the general formula (I) or (II) ##STR1## wherein m is an integer of 1 to 5; (C) an alkylated diphenylamine compound; and (D) a borated succinic acid imide compound. This lubricating oil composition is excellent in heat resistance and oxidation stability in a gaseous phase of the oil, and it stably functions for a long time as a traction drive oil or the like.

Abstract: A process for improving the traction coefficient between at least two relatively rotatable elements having tractive surfaces in a torque transmitting relationship which comprises introducing between the tractive surfaces of the elements a traction drive fluid comprising, as the active component, a hydrocarbon compound having a bicylo octane skeleton.

Abstract: A traction drive fluid composition comprising a hydrocarbon having a bicyclo octane skeleton, such as a bicyclo(3,2,1) octane skeleton, a bicyclo(2,2,2)octane skeleton or a bicyclo(3,3,0)octane skeleton. The traction drive fluid has a low viscosity and has a high traction coefficient over a wide temperature range.

Abstract: A lubricating oil composition comprising a major amount of at least one lubricating base oil, from 0.05 to 5% by weight of at least one zinc dithiophosphate, and from 0.01 to 10% by weight of at least one unsaturated aliphatic alcohol of from 16 to 24 carbon atoms, the weight ratio of the unsaturated aliphatic alcohol to the zinc dithiophosphate being from 0.1 to 10, has excellent thermostability and oxidation stability and has an excellent effect in improving load carrying capacity and wear resistance.

Abstract: Disclosed herein is an additive for lubricating oil which comprises a zinc dithiophosphate, a compound having at least one hydroxyl group and carbon-carbon double bond in a molecule thereof and cuprous oxide.Also disclosed herein a lubricating oil composition which comprises a base oil for lubricating oil and the above-mentioned additive for lubricating oil.The aforementioned additive is particularly effective for improving color change to black, sludge formation, stability a against oxidation and anti-wear property for zinc dithiophosphate (ZnDTP)-compound lubricating oil composition.

Abstract: A process for improving the coefficient of traction at high temperatures in a traction drive, and a tranction drive fluid for use therein. This traction drive fluid comprises the hydrogenated product of a dimer, a trimer or a tetramer of norbornanes and/or norbornenes, and exhibits excellent traction performance over a wide temperature range from low temperature to high temperature.

Abstract: The invention provides a novel compound 1,1-dicyclohexyl cycloalkane derivative represented by the general formula ##STR1## in which R.sup.1 and R.sup.2 are each a hydrogen atom or lower alkyl group, R.sup.3 to R.sup.6 are each a hydrogen atom, lower alkyl group or alkylene group forming a ring structure together with either one of the others and the carbon atom in the cycloalkane ring, and m and n are each zero or a positive integer not exceeding 6 with the proviso that m+n is 4-6, such as 1,1-dicyclohexyl cyclohexane. The compound has a relatively low viscosity and high traction coefficient even at elevated temperatures so that it is useful as a constituent of a traction-drive fluid usable in a compact and light-weight traction-drive apparatus. The compound can be synthesized by subjecting a corresponding 1,1-di(hydroxyphenyl) cycloalkane compound to a hydrogenation reaction and dehydration reaction in combination in the simultaneous presence of a hydrogenation catalyst and a dehydration catalyst.

Abstract: A process for improving the coefficient of traction between at least two relatively rotatable elements in a torque transmitting relationship, and traction drive fluid composition. This composition contains the hydrogenated product of a dimer, a trimer or a polymer having a degree of polymerization of more than 3 of a cyclic monoterpenoid monomer, and exhibits excellent traction performance over a wide temperature range from low temperature to high temperature.

Abstract: A stable fluid composition is provided by this invention which contains a cis-o-tercyclohexyl compound and a trans-o-tercyclohexyl compound at a weight ratio of 25:75-65:35. This composition is useful as a fluid for traction drive.