Abstract:
An adhesive grease composition comprises a random copolymer of ethylene and an alpha-olefin having the following formula ##STR1## wherein R represents a lower alkyl group, x and y are, respectively, an integer provided that x/y=0.5 to 2.0 and x+y=50 to 150, and a thickening agent in defined amounts.
Abstract translation:粘合剂润滑脂组合物包含乙烯和具有下式的α-烯烃的无规共聚物,其中R表示低级烷基,x和y分别是整数,条件是x / y = 0.5〜2.0,x + y = 50〜150,加稠剂为规定量。
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:
Novel compositions useful as fluid gelling agents, especially for use in subterranean applications such as drilling fluids, are prepared by reacting an aqueous dispersion of a clay, such as bentonite, with an aqueous gel of a monodispersed mixed metal layered hydroxide of the formula Li.sub.m D.sub.d T(OH).sub.(m+2d+3+na) A.sub.a.sup.n, where D is a divalent metal, such as Mg, T is a trivalent metal, such as Al, and A represents other monovalent or polyvalent anions, the formula being described in detail in the disclosure.
Abstract:
Novel compositions useful as fluid gelling agents, especially for use in subterranean applications such as drilling fluids, are prepared by reacting an aqueous dispersion of a clay, such as bentonite, with an aqueous gel of a monodispersed mixed metal layered hydroxide of the formula Li.sub.m D.sub.d T(OH).sub.m+2d+3+na) A.sub.a.sup.n, where D is a divalent metal, such as Mg, T is a trivalent metal, such as Al, and A represents other monovalent or polyvalent anions, the formula being described in detail in the disclosure.
Abstract:
The invention relates to a grease composition comprising a base oil and a thickener which comprises hydrophilic metal oxide particles and one or more amides which contain one or more unsaturated C-C bonds and/or at least one OH group, wherein the hydrophilic metal oxide particles have a BET specific surface area of at least 10 m 2 /g and at least 80% of the hydrophilic metal oxide particles have a particle size in the range of from 5 nm to 900 μm, and wherein the amount of the thickener is in the range of from 0.1-40% by weight, based on the total weight of the grease composition. The invention further relates to methods for manufacturing the grease composition, and the use of the grease composition for lubricating bearings, gears and couplings.
Abstract:
A grease composition comprising a particulate hydrotalcite type compound represented by the formula (I) : [M 2+ 1-xM 3+ x (OH) 2] [ (A n- ) x/n • mH20] (where M 2+ is a divalent metal ion, M 3+ is a trivalent metal ion, A n- is an anion of valency n, x is a number which satisfies 0
Abstract:
A feeding lubricant for use on a welding electrode comprises about 10 to 40 wt.% of at least one soap-based lubricant, about 40 to 90 wt.% of at least one solid particulate lubricant selected from MoS 2 , WS 2 , ZnO, graphite and PTFE and up to 20 wt.% of at least one optional additional particulate lubricant ingredient.
Abstract:
Die Erfindung betrifft die Verwendung von ionischen Flüssigkeiten zur Herstellung von wasserbeständigen Schmierfettzusammensetzungen, die in einem Temperaturbereich von mindestens -30°C bis mindestens 180°C gesetzt werden und gute Korrosionsschutzeigenschaften aufweisen.
Abstract:
A thermally conductive silicone grease composition comprising at least the following components: an organopolysiloxane (A) represented by the following general formula : [wherein R 1 designates identical or different univalent hydrocarbon groups; X designates identical or different univalent hydrocarbon groups or alkoxysilyl-containing groups of the following general formula: -R 2 -SiR 1 a (OR 3 ) (3-a) (wherein R 1 designates the previously mentioned groups; R 2 designates oxygen atoms or alkylene groups; R 3 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 disclosed technology relates to a dispersion comprising LiOH and/or LiOH.H 2 O particulates dispersed in an organic medium comprising at least one oil and at least one surfactant, the concentration of LiOH and/or LiOH.H 2 O particulates in the dispersion being greater than 10% by weight, the LiOH and/or LiOH.H 2 O particulates having a mean particle size in the range up to about 10 microns wherein at least about 99% by weight of the LiOH particulates have a particle size in the range up to about 20 microns. A process for making the dispersion is disclosed. Grease compositions made using the dispersion are disclosed.