Abstract:
A constant velocity joint having a boot constructed from a thermoplastic polyether ester as the boot material. The boot includes a lubricating grease composition for lubricating the constant velocity joint, the lubricating grease composition comprising calcium lignin sulfonate.
Abstract:
The present invention provides a defoaming agent composition in gel form, of number 1 NLGI grade or harder, for application to the inside wall of a container, being a composition for defoaming bubbles generated from lubricating oil present within a container. The present invention further provides a method of defoaming lubricating oil characterised in that it includes a step of applying a defoaming agent composition in gel form, of number 1 NLGI grade or harder, to the inside wall of a container for lubricating oil and characterised in that this step is a step in which said defoaming agent composition is applied to the inside wall face at or above the oil surface of the lubricating oil, or higher than this.
Abstract:
A lubricating grease composition comprising (A) a base oil, (B) 5 to 10 wt. % of a urea compound, (C) 0.5 to 20 wt. % of at least one phosphorous compound selected from the group consisting of a phosphoric acid salt etc., and (D) 0.5 to 40 wt. % of a fatty acid metal salt. Aforementioned lubricating grease composition allows it to reduce the friction coefficient and prolong the endurance life significantly when it is applied onto surfaces of the sliding pair consisting of metal and plastic (especially glass-fiber-reinforced plastic) parts.
Abstract:
A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.
Abstract:
The invention provides composites of organic polymeric compositions including a matrix of an organic polymer and a filler distributed throughout the matrix, the flier being present in the matrix substantially as separate particles, each about the fundamental particle size of the filler. The fillers are unique mixed metal hydroxide compositions that are obtainable in sub-micron size particles. These particles are layered and have a BET specific surface area in excess of about 100 m.sup.2 /g. An anion of the particulates is selected to be compatible with the organic polymer thereby providing ease of dispersion of the filler particles throughout the polymer matrix.
Abstract:
A grease composition comprising a grease containing, in a base oil thereof, from 2 to 40% by weight, based on the total composition, of tricalcium phosphate [Ca.sub.3 (PO.sub.4).sub.2 ], the grease further containing (A) from 0.5 to 10% by weight, based on the total composition, of a molybdenum dialkyldithiocarbamate sulfide and (B) from 0.1 to 5% by weight, based on the total composition, of at least one of a zinc dialkyldithiophosphate and triphenyl phosphorothionate. The grease composition is excellent in mechanical stability, heat resistance, extreme pressure properties, and wear resistance.
Abstract:
Lubricating grease having high dropping point, superior stability against oxidation and long life is obtained by having a thickener contained in grease, said thickener comprising the three components:a. lithium soap of C.sub.12-24 hydroxyfatty acid,b. lithium phosphate salt produced from phosphoric or phosphorous acid ester andc. dilithium borate.
Abstract:
Useful compositions are prepared by incorporating into organic materials, crystalline lithium aluminates which conform substantially to the empirical formula(LiA.sub.x).sub.y.2Al(OH).sub.3.nH.sub.2 Owhere A represents one or more anions and/or negative-valence radicals,where x represents a quantity of A ions and/or radicals sufficient to substantially satisfy the valence requirements of the Li,where y is a numerical value sufficient to maintain the crystalline structure,and where n represents the number of waters of hydration, if any.
Abstract:
Crystalline aluminates conforming substantially to the general formula LiR.2Al(OH).sub.3, CaR(A).2Al(OH).sub.3, or ZnR(A).2Al(OH).sub.3, where R is an organic acid of C.sub.6 -C.sub.22 and A, when present, is an inorganic anion, are found to improve the coefficient of friction and antiwear properties of lubication fluids subjected to shearing, rubbing, or grinding forces at elevated pressure.
Abstract:
An overbased calcium sulfonate grease composition comprising a reduced amount of overbased calcium sulfonate, calcium hydroxyapatite, base oil, one or more converting agents, and one or more complexing acids if a complex grease is desired. The calcium sulfonate grease composition improves thickener yield and expected high temperature utility as demonstrated by dropping point. A method of making the composition comprising the steps of mixing the calcium sulfonate and base oil, adding the calcium carbonate either before or after conversion, adding one or more converting agents, and adding one or more complexing acids. All or a portion of one or more of the complexing acids may be added with or prior to the one or more converting agents.