Abstract:
PROBLEM TO BE SOLVED: To provide a grease composition for a harness excellent in material adaptability, anticorrosion property and oxidation stability for an olefin elastomer, etc. SOLUTION: In this grease composition for the harness, containing a thickening agent, base oil and additives, the base oil contains a polyoxyalkylene glycol ether, and the additives contain a quinoline-based compound and a benzotriazole-based compound. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A composition made by admixing a major amount of base oils of lubricating viscosity and minor amounts of additives. The additives can include a viscosity modifier, a dispersant, a friction modifier, an anti-oxidant, a suppressant, a tackifier, and thickeners. The dispersant can be a dissolved powered styrene-ethylene/propylene-block copolymer and the thickeners can be fumed silicia. The dispersants and the thickeners are pulverized and dissolved in the composition to provide for inhibition of oil separation during storage.
Abstract:
Organosilicone pastes and greases including at least one oily diorganopolysiloxane polymer with a dynamic viscosity at 25 DEG C of at least 500 mPa.s, and at least one alkali-metal or alkaline-earth metal carbonate, but no actual thixotropic agent, wherein said carbonate has a particle size of at most 0.5 mu m and a high BET specific surface area of more than 5 m /g, and is present in an amount of at least 20 wt % based on the total composition. The preparation method is carried out at a low temperature, e.g. 5-40 DEG C.
Abstract:
Organoclay compositions which comprise the reaction product of a smectite-type clay having an ion exchange capacity of at least 50 meq. wt. per 100 g. clay (active basis), and a branched chain quaternary ammmonium compound are useful self-activating and self-dispersing additives to liquid organic systems such as grease and ink formulations. Also included are grease and ink formulations using these organoclay compositions.
Abstract:
The invention provides composites of organic polymeric compositions including a matrix of an organic polymer and a filler distributed throughout the matrix, the filler 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 /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 water washable thermally conductive grease useful for thermal coupling of electronic chips and heat sinks in electronic modules comprises a hydrophilic liquid polymer carrier, an antioxidant, and up to 90 weight percent of a microparticulate thermally conductive filler. In a preferred embodiment, the thixotropic dielectric composition further comprises an ionic surfactant to promote wetting/dispersion of the microparticulate filler. The thermally conductive grease is non-corrosive, resistant to shear induced phase destabilization and capable of being washed from module surfaces with aqueous solutions. Substitution of the present hydrophilic based greases for art-recognized solvent washable greases eliminates use of non-aqueous solvents in electronic module processing/reprocessing operations.
Abstract:
A grease composition for use as a cable filling material which contains about 75 to 95 parts by weight of a base component of a polyol or ester having a molecular weight of at least about 3000 and about 2 to 20 parts by weight of colloidal particles such as silica. Optionally, an antioxidant component can be added to impart high temperature resistance or a rubber component can be added to improve bleed resistance. Also, an article of manufacture of a cable having a sheath with one of the grease compositions of the invention located therein, and a method for filling the cable with such grease compositions.
Abstract:
A composition made by admixing a major amount of base oils of lubricating viscosity and minor amounts of additives. The additives can include a viscosity modifier, a dispersant, a friction modifier, an anti-oxidant, a suppressant, a tackifier, and thickeners. The dispersant can be a dissolved powered styrene-ethylene/propylene-block copolymer and the thickeners can be fumed silicia. The dispersants and the thickeners are pulverized and dissolved in the composition to provide for inhibition of oil separation during storage.
Abstract:
A thermally conductive silicone grease composition comprising at least the following components: an organopolysiloxane (A) represented by the following general formula : [wherein R1 designates identical or different univalent hydrocarbon groups; X designates identical or different univalent hydrocarbon groups or alkoxysilyl-containing groups of the following general formula: -R2-SiR1a (OR3)(3-a) (wherein R1 designates the previously mentioned groups; R2 designates oxygen atoms or alkylene groups; R3 designates alkyl groups; and 'a' is an integer ranging from 0 to 2); and 'm' and 'n' are integers equal to or greater than 0, respectively]; a thermally conductive filler (B); and an organopolysiloxane (C) having silicon-bonded hydrogen atoms on both molecular terminals and in the molecular chains; is characterized by excellent resistance to heat and reduced oil bleeding.
Abstract:
The invention concerns a lubricating grease, characterised in that it comprises 70 to 95 wt. % of a mixture containing at least a first fatty acid ester and sorbitan and at least a second fatty acid ester and polyalkoxylated sorbitan, said esters being present in weight amounts, relative to the weight of said mixture, of 10 to 90 % and 90 to 10 % respectively, and 5 to 30 wt. % of at least a thickening agent. The invention also concerns a method for preparing a grease in accordance with the invention, and the use of such a grease as lubricant. The invention further concerns a vehicle wheel comprising the inventive grease.