Abstract:
[Summary][Object] A low friction assembly is desired.[Solving Means] The present invention relates to a new low-friction lubrication assembly comprising a first member relatively slidable against a second member, the first member having chemical affinity with an OH-group on its sliding surface; and one or more oxygen containing compounds, provided on the sliding surface of the first member and being able to produce a tribofilm attached to the sliding surface of the first member through hydrogen bond interactions. Preferably the second member comprises a similar OH-terminated sliding surface wherein an oxygen containing compound (lubricant)-supported interface between the first and second sliding surfaces results in a H- and/or OH-terminated interface developing repulsive forces thereinbetween.
Abstract:
A conveyor lubricant including an effective lubricating amount of at least one lubricant and at least one protectant which is an alkanolamide, alkyl ether sulfonate, acetylenic diol, alkyl ether carboxylic acid or salt thereof, alkylated diphenyl oxide disulfonic acid or salt thereof or a mixture thereof, and methods of using the same.
Abstract:
The invention relates to the use of at least one selected polyhydroxy compound in lubricant formulations and the use of chain lubricants which contain at least 20 percent by weight of a selected polyhydroxy compound, for reducing the friction between transported goods and transport installations. The invention also relates to a lubricant which contains further additives in addition to the polyhydroxy compounds.
Abstract:
Novel monodispersed crystalline mixed metal layered hydroxide compounds of the general formula: where m is from zero to about 1; D is a divalent metal; d is from zero to about 4; T is a trivalent metal; A represents anions or negative-valence radicals of valence n; na is from zero to about-3; (m+d) is greater than zero; a is the number of A ions; q is from zero to about 6; and (m+2d+3+na) is equal to or greater than 3. The D metal is preferably Mg and the T metal is preferably A1. These compounds are useful as gelling agents which impart beneficial thixotropic properties to various fluids, such as drilling fluids, especially when employed along with fluid loss agents.
Abstract:
PROBLEM TO BE SOLVED: To provide a low-friction lubrication assembly showing improved sliding characteristics than a low-friction assembly of a conventional technology.SOLUTION: The new excellent friction lubrication assembly includes a first member which is slidable relatively against a second member. The first member is a member which has chemical affinity with OH groups on its sliding surface. The first member includes one or a plurality of oxygen-containing compounds which are located on the sliding surface of the fist member and can form a tribofilm deposited on the sliding surface of the first member typically through hydrogen bond interaction. The second member has a similar OH-terminated sliding surface. Preferably, the interface supported by the oxygen-containing compound (lubricating agent) between the first and second sliding surfaces has an H- and/or OH-terminated interface, and repulsion is provided between these interfaces.
Abstract:
[Object] A low friction assembly is desired. [Solving Means] The present invention relates to a new low-friction lubrication assembly comprising a first member relatively slidable against a second member, the first member having chemical affinity with an OH-group on its sliding surface; and one or more oxygen containing compounds, provided on the sliding surface of the first member and being able to produce a tribofilm attached to the sliding surface of the first member through hydrogen bond interactions. Preferably the second member comprises a similar OH-terminated sliding surface wherein an oxygen containing compound (lubricant)-supported interface between the first and second sliding surfaces results in a H-and/or OH-terminated interface developing repulsive forces thereinbetween.
Abstract:
Elastic solids having reversible stress-induced fluidity are prepared, e.g., by combining liquid formulations with a crystalline mixed metal hydroxide conforming substantially to the formulaLi.sub.m D.sub.d T(OH).sub.(m+2d+3+n.a) (A.sup.n).sub.a.xH.sub.2 Owhere m is amount of Li, d is amount of divalent metal D, T is a trivalent metal, A represents at least one anion or negative-valence radical of valence n and a is the amount of A, and xH.sub.2 O represents excess waters of hydration, if any. These make useful coatings.The instantly reversible fluidization of these unique elastic solids may be expressed as:.tau.=ka.epsilon.,When .epsilon.
Abstract:
Adducts of clay, especially of the smectite variety, most especially bentonite, are prepared with an effective amount of at least one activated mixed metal oxide or oxy-hydroxide (AHMMO) formed by dehydrating hydrotalcite or a mixture comprising magnesium oxide and aluminum oxide, or a crystalline mixed metal hydroxide conforming substantially to the formulaLi.sub.m D.sub.d T(OH).sub.(m+2d+3+n.a) (A.sup.n).sub.a. xH.sub.2 Owhere m is zero to one, D is a divalent metal, d is from zero to 4, T is a trivalent metal, A represents at least one anion or negative-valence radical of valence n, where n is 1 or more, (m+2d+3+n.a) is equal to or greater than 3, (m+d) is greater than zero, and xH.sub.2 O represents excess waters of hydration. These adducts are useful, e.g., in drilling muds and in viscosity modification of a wide variety of fluids.