Abstract:
L' invention concerne une composition organique comprenant des polycarbonates de glycérol, en mélange avec des polyglycérols, des copolymères [ (α-hydroxyméthyl) oxyéthylène/ (α-hydroxyméthyl éthylène carbonate) , éventuellement des copolymères [.(α-alkyl) oxyéthylène/ (α-alkyl) éthylène carbonate], éventuellement des copolymères [(α-alkyl) oxyéthylène/ (α-hydroxyalkyl) oxyéthylène], du carbonate de glycérol et /ou d'autres carbonates organiques, du glycérol et/ou d'autres composés coproduits et/ou résiduels et un procédé de production de ladite composition. La composition selon l'invention ou les homopolymères et copolymères la formant, trouvent des applications dans les domaines techniques des fluides hydrauliques, de la lubrification, du traitement et de la décoration du bois, de l'ignifugation, de la détergence, de l'exploration et de la production pétrolière, du traitement des eaux, de la cosmétique, de la pharmacie, de l'alimentaire et des intermédiaires de la chimie.
Abstract:
A lubricant for a run-flat tire system includes a water soluble, or water-miscible carrier, a thickener, and a surfactant. The thickener hereof retains its rheological properties and is not subject to permanent thinning shear. The base fluid is, preferably, a water-soluble polyhydroxyl or other polyhydric compound and the thickener is preferably a clay. When admixed with a surfactant and, optionally, a lubricity agent, the lubricant exhibits long term stability and (is resistant to heat buildup.) prevents the buildup of heat in the tire assembly when the tire is in the run flat condition.
Abstract:
A lubricant for a run-flat tire system includes a water soluble, or water-miscible carrier, a thickener, and a surfactant. The thickener hereof retains its rheological properties and is not subject to permanent thinning shear. The base fluid is, preferably, a water-soluble polyhydroxyl or other polyhydric compound and the thickener is preferably a clay. When admixed with a surfactant and, optionally, a lubricity agent, the lubricant exhibits long term stability and (is resistant to heat buildup.) prevents the buildup of heat in the tire assembly when the tire is in the run flat condition.
Abstract:
Concentrated lubricant compositions that may be diluted to form diluted lubricant compositions for use in high temperature metal forming processes are disclosed. The concentrated lubricant compositions contain a triaryl phosphate ester; a non-ionic surfactant; an organic sulfur-containing extreme pressure additive; an amine salt of an organic acid; and, optionally, sodium thiosulfate. These lubricant compositions have improved performance in forming operations and produce parts with less part to part variation.
Abstract:
A waterborne lubricant for the cold plastic working of metals that contains alkali metal salts of dimer(s) and/or trimer(s) of unsaturated fatty acids with from 10 to 24 carbon atoms per molecule has a lubrication performance at least as good as that of prior lubricants, even at generally lower lubricating film weights, has a long bath life, and generates little dust during cold plastic working operations. Even as little as 5 % of these salts of dimer(s) and/or trimer(s) of unsaturated fatty acids, when mixed with conventional alkali metal salts of saturated fatty acids with from 10-24 carbon atoms per molecule, can provide these benefits.
Abstract:
The invention concerns an organic composition comprising glycerol polycarbonates, mixed with polyglycerols, [ (a-hydroxymethyl) oxyethylene/ (a-hydroxymethyl ethylene carbonate) copolymers; optionally [(a-alkyl) oxyethylene/ (a-alkyl) ethylene carbonate] copolymers, optionally [(a-alkyl) oxyethylene/ (a-hydroxyalkyl) oxyethylene] copolymers, glycerol carbonate and/or other organic carbonates, glycerol and/or other co-produced and/or residual compounds and a method for producing said composition. The inventive composition or the homopolymers and copolymers constituting same, are applicable in the technical fields of hydraulic fluids, lubrication, wood treatment and decoration, fire-retardant treatment, detergency, oil prospecting and production, water treatment, cosmetics, pharmaceutics, food industry and chemical intermediates.
Abstract:
Iron-based metallurgical powder compositions are produced by mixing iron-based powder with an improved binder/lubricant that comprises dibasic organic acid and one or more additional components such as solid polyethers, liquid polyethers, and acrylic resin. These novel binder/lubricants impart one or more enhanced green properties to the powder compositions and reduce the ejection force required to remove the compositions from molds and dies.