Abstract: There is provided a fragrance keeping material capable of molding into free shapes in which RB ceramics and/or CRB ceramics of 10 to 2,000 angstrom in pore diameter and 0.1 to 1.1 cm3/g in pore volume is used to keep or absorb a fragrance.

Abstract: There is provided a water purification filter capable of molding into free shapes in which RB ceramics and/or CRB ceramics of 10 to 2,000 angstrom in pore diameter and 0.1 to 1.1 cm3/g in pore volume is used as an absorption and filtration material.

Abstract: There is provided a polishing compound for sheet metal coating comprising an polishing material and a surfactant in which a RB ceramics and/or CRB ceramics powder is used at least as a part of the polishing material, thereby shortening a stain removing process of a coated surface in reparative sheet metal coating work of cars, etc. without conducting a washing process thereafter.

Abstract: There is provided an air cleaning filter capable of molding into free shapes in which an RB ceramics and/or CRB ceramics of 10 to 2,000 angstrom in pore diameter and 0.1 to 1.1 cm3/g in pore volume is used as an absorbing and filtering material.

Abstract: A polishing-washing method comprises providing a polishing media containing a fine powder of an RB ceramic and/or CRB ceramic, and bringing a medium stream containing the polishing media into contact with the surfaces of a body to be worked. In this method, the polishing media solution obtained after the polishing-washing can be re-used by recycling after simply separating the particles of metal oxides and the particles of removed burrs and cutting metal chips from the solution composition by utilizing a difference in specific gravity.

Abstract: There are provided a shoe midsole which is light in weight, long life, excellently abrasion resistant, sufficiently air-permeable and well-workable, and shoes using same. The shoe midsole in the form of footprint plate comprising a light metallic skeleton in the form of footprint plate and RB ceramics or CRB ceramics molded around the skeleton.

Abstract: A contaminated surface polishing-washing detergent composition comprises a polishing media and a dispersion medium wherein at least a part of the polishing media is made of a fine powder of an RB ceramic and/or CRB ceramic. The composition is effective in polishing-washing the surfaces of a precision-worked base material, and after the polishing-washing, the particles of metal oxides and the particles of removed burrs and the cutting metal chips are simply separated from the composition by use of the difference in specific gravity to re-use it by recycling.

Abstract: A ceramic material suitable for use in production of paving tiles, construction tiles, flooring in offices, flooring in machinery plants and so forth is obtained by a method comprising steps of mixing defatted bran derived from rice bran with a thermosetting resin before kneading, subjecting a kneaded mixture thus obtained to a primary firing in an inert gas at a temperature in a range of 700 to 1000° C., pulverizing the kneaded mixture after the primary firing into carbonized powders, kneading the carbonized powders with which ceramic powders, a solvent, and a binder as desired are mixed into a plastic workpiece (kneaded mass), pressure-forming the plastic workpiece at pressure in a range of 10 to 100 MPa, and subjecting a formed plastic workpiece thus obtained again to firing in an inert gas atmosphere at a temperature in a range of 100 to 1400° C.

Abstract: The invention provides a stud for a shoe, light in weight, and having a long service life and excellent abrasion resistance, and a shoe using the same. The stud for the shoe comprises a central protruding member, a seating plate, and peripheral binding members. The seating plate is formed of a metallic material, and the central protruding member or the peripheral binding members are formed of RB ceramic or CRB ceramic. The shoe is fabricated by securely attaching the studs to an outsole thereof.

Abstract: There is provided a maintenance-free sleeve bearing arrangement that is light in weight, has a long service life and does not require resupply of oil during operation. The sleeve bearing arrangement is comprised mainly of a shaft and a sleeve bearing, wherein the sleeve bearing formed of CRB ceramics, and/or the shaft formed of the CRB ceramics are used.

Abstract: There is provided a porous material suitable for use in a bearing rolling element, having such properties as a small contraction ratio of the dimensions of a formed workpiece formed thereof to those of a finished product, excellent hot oil resistance, small contraction change, insusceptibility to damage, light weight, a long service life, and ability to retain oil and grease for a long period of time.

Abstract: A bearing grease composition used under clean atmosphere, as in a bearing of hard disc drive, which has small dust generation (scatter), a long life, excellent acoustic performance and low torque.

Abstract: There is provided an anticorrosive composition for a memory unit bearing so as to control outgas generation which would cause magnetic head crushing or memory error. The anticorrosive composition for a memory unit bearing contains a carbonic ester represented by the following formula: wherein R and R′ are branched alkyl groups of 13 to 15 carbon atoms and may either be the same or different.

Abstract: A fluorine-based oil composition for actuator rolling bearings containing (A) a fluorine-based oil and (B) a fluorinated ether diamide compound at a ratio by weight of 80 to 9.1 to 20 to 0.1. This composition is much better in torque, outgas and life than existing oil compositions.

Abstract: There is provided a porous material suitable for use in a bearing retainer, having such properties as a small contraction ratio of the dimensions of a formed workpiece to those of a finished product, excellent hot oil resistance, small contraction change, insusceptibility to damage, light weight, a long service life, and ability to retain oil and grease for a long period of time. The porous material suitable for use in the bearing retainer is obtained by a process comprising the steps of mixing degreased bran derived from rice bran with a thermosetting resin before kneading, subjecting a kneaded mixture to a primary firing in an inert gas at a temperature in a range of 700 to 1000° C.

Abstract: The invention provides an anticorrosive lubricant composition for molded plastic products, causing no chemical attack to mechanical components such as gears, shafts, and so forth, formed of molded resins, even if used therefor, and also provides mechanical components such as gears, shafts, and so forth, to which the same is applied. The anticorrosive lubricant composition for molded plastic products contains 100 parts by weight of a synthetic hydrocarbon oil having kinematic viscosity of 10 to 500 mm2/s at 40° C., and 0.1 to 10 parts by weight of a corrosion prevention additive.

Abstract: The invention provides a fluorescent grease which enables monitoring of behaviors of the grease for elucidation of the mechanism of grease lubrication, and a rolling element bearing or a condition monitoring rolling element bearing, both charged with the fluorescent grease. The fluorescent grease comprises, as its essential components, a base oil, a thickener agent, and a fluorescent substance.

Abstract: A fluorine-based oil composition for actuator roller bearings comprising (A) a fluorine-based oil and (B) a fluorinated ether diamide compound at a ratio by weight of 80 to 99.1:20 to 0.1. This composition is much better in torque, outgas and life than existing oil compositions.

Abstract: A rolling device is made up of a plurality of rolling bodies provided between an outer member having a first contact face with each of the plurality of rolling bodies and an inner member having a second contact face with each of the plurality of rolling bodies wherein the plurality of rolling bodies individually are able to roll relative to the first and second faces. A grease composition is sealedly filled in between the outer member and the inner member and contains a carbonate compound serving as a base oil, a lithium soap serving as a thickener, and at least one organomolybdenum compound selected from the group consisting of a molybdenum dithiophosphate and a molybdenum dithiocarbamate.

Abstract: A grease composition with which low torque property, low noise property and low volatilization property can be maintained, is provided.