摘要:
There are disclosed improved water-soluble metal working fluids comprising polyaspartic acid, amides and salts thereof, a corrosion inhibitor(s) and a basic additive said additive having sufficient basicity and buffering power to maintain the pH of the composition above about 8.5 and preferably above about 9. Such compositions are useful as lubricants in processes to cut, bend, grind and shape both ferrous and non-ferrous metals and tend to maintain higher pH values due to the incorporation of a basic additive. The polyaspartic acid and salts thereof are particularly advantageous in that the fluids can be easily disposed of after use without special treatment because polyaspartic acid and salts thereof are readily biodegradable.
摘要:
The present invention is directed to a composition of matter useful as a multifunctional viscosity improver-dispersant for ole- aginous compositions, particularly lubricating oil compositions, com- prising at least one adduct or reaction product of (A) ethylene copolymer, preferably ethylene propylene copolymer of at least 15,000 number average molecular weight grafted with monounsaturated mono- or dicarboxylic acid material; and (B) amido-amine or thioamido-amine com- prising reaction product of at least one amine, preferably polyamine, and an alpha, beta-unsaturated compound represented by the formula wherein X is sulfur or oxygen, Y is -OR 4 , -SR 4 , or and R', R 2 , R 3 , R 4 and R 5 are independently selected from hydrogen, hydrocarbyl, and substituted hydrocarbyl. The present invention is also directed to oleaginous compositions and concentrates, particularly lubricating oil compositions and concentrates, containing said nitrogen containing carboxylic acid material grafted high molecular weight ethylene copolymer adduct.
摘要:
Thixotrope Zubereitungen in unterschiedlichsten Anwendungsbereichen enthalten Siliciumdioxid als verdickende oder thixotropierende Komponente, die flüssigen Systemen zugesetzt ist. In manchen Zubereitungen neigt die Kieselsäure zum Absetzen. In Zubereitunggen, welche selbst stärkere H-Brückenbildungen ausbilden, kann der Thixotropie gebende Effekt von SiO₂ wesentlich geschwächt werden. Die neuen thixotropen Zubereitungen sollen Hilfsmittel enthalten, die das Siliciumdioxid aktivieren bzw. dessen Wirkung verstärken. Die thixotropen Zubereitungen mit einem Gehalt an hochdispersem Siliciumdioxid enthalten als zusätzliche Komponente hydroxyfunktionelle Carbonsäureamide der Formel I Verwendung der Verbindungen der Formel I zum Thixotropieren von flüssigen Zubereitungen und hochdisperses Siliciumdioxid, das mit Verbindungen der Formel I beschichtet ist.
摘要:
The present invention provides for a thickener composition characterized by: (1) at least one water-soluble, thermoplastic, organic polymer having a weight average molecular weight of at least about 10,000 which comprises hydrophobic segments, each containing at least one monovalent hydrophobic group covalently bonded to the polymer, wherein the polymer has an amount of hydrophobe bunching comprising at least two monovalent hydrophobic groups per hydrophobic segment, sufficient to provide for enhanced thickening of aqueous solutions containing the polymer, and (2) at least one ethoxylated alcohol selected from the group consisting of C 9 -C 15 saturated alcohols with between about 5 and 20 moles of ethylene oxide per mole of alcohol and having an HLB between 11 and 14, and C g- Ci 8 unsaturated alcohols with between about 5 and 20 moles of ethylene oxide per mole of alcohol and having an HLB between 11 and 14. Said thickener compositions as well as hydraulic fluid and metalworking fluid concentrates, aqueous concentrates and water-based hydraulic fluid and metalworking fluid or lubricant compositions are thickened to an oil-like viscosity by said low solids combination of thickeners.
摘要:
Les poudres de polyamide-imides de l'invention sont infusibles et sont constituées de grains de forme sphéroidale dont le diamètre est compris entre 2 et 40 microns. Elles sont obtenues par polymérisation anionique de lactames au moyen d'un catalyseur et d'un polyisocyanate ajouté en quantité suffisante pour qu'il active tout d'abord la polymérisation et, ensuite, réagisse avec les chaînes de polyamides formées. De tellse poudres sont avantageusement utilisées comme additifs pour lubrifiants.
摘要:
Die Erfindung betrifft die Verwendung von Kombinationen aus wasserlöslichen polymeren Polyetherpolyolen, in denen mindestens 50 % der Hydroxyl-Endgruppen durch Umsetzung mit einem einen langkettigen aliphatischen Kohlenwasserstoffrest aufweisenden Monoisocyanat verkappt sind, und bestimmten Tensiden als Verdicker-Systeme für hoch wasserhaltige funktionelle Flüssigkeiten und die verdickten hoch wasserhaltigen funktionellen Flüssigkeiten.