Abstract: An environmentally acceptable lubricating grease, comprising: a) 50 wt % to 90 wt % of a biodegradable base oil comprising a biodegradable ester as base oil; b) 3 wt % to 25 wt % of a thickener selected from b1) 3 wt % to 12 wt % biodegradable calcium soap, b2) 3 wt % to 25 wt % bentonites, b3) and mixtures thereof; c) 4 wt % to 40 wt % additives, comprising c1) 1 wt % to 12 wt % fumed silicon dioxide and/or polytetrafluoroethylene and/or mixtures thereof, c2) 2 wt % to 45 wt % of a polymer selected from polyisobutylene, polyisobutylene/butene copolymer, polymethacrylates, polyesters and mixtures thereof, c3) 0.5 wt % to 20 wt % of a solid lubricant.

Abstract: The present teachings generally provide curable polysiloxane compositions including a base resin including a surface active polymer. Articles of manufacture including the curable polysiloxane compositions and slippery coatings and materials also are provided. The compositions may be used to provide slippery, lubricious, or repellent materials and coatings and may provide anti-fouling function. The compositions can provide anti-fouling or foul-release function on open surfaces, internal surfaces, membranes; to provide pinning free or low contact angle hysteresis surfaces; to provide homogeneous interface to suppress nucleation; to provide a barrier layer such as anti-corrosion; to provide anti-stain, anti-smudge, anti-fingerprint, anti-soil function.

Abstract: A PAO lubricant base stock having a KV100 of at least 200 cSt and comprising multiple PAO molecules comprising at least 200 carbon atoms per molecule, wherein each of the PAO molecules comprises multiple pendant groups; and the average pendant group length of all the pendant groups excluding one methyl on each of the PAO molecules among at least 90 mol % of all of the PAO molecules, if one or more methyl is present, is at least 6.0. The PAO base stock exhibits high EHL thicknesses at 40° C., 80° C., and 120° C., rendering it particularly useful in lubricant compositions experiencing high-stress events such as gear oils, automotive transmission oils, and the like.

Abstract: An ionic compound is represented by formula (1): AM(OY1)(OY2)(OY3)(OY4). A is a group 1 element. M is a group 13 element. Y1 is one selected from an oligoalkylene ether group, an oligoalkylene thioether group, and an oligoalkylene amino group and includes an electron donating group on carbon that is located in one of ?-? positions with respect to oxygen atom adjacent to M. Y2, Y3, and Y4 are the same each other or different from each other or cross-linked to each other. Y2, Y3, and Y4 are each any one of an alkyl group, an alkyl group with a fluorinated terminal, an aryl group, and one selected from the group consisting of an oligoalkylene ether group, an oligoalkylene thioether group, and an oligoalkylene amino group and including an electron donating group on carbon that is located in one of ?-? positions with respect to oxygen atom adjacent to M.

Abstract: This invention relates to medical articles, such as a syringe assemblies, including a substrate having a coating on a surface thereof, the coating including: (1) at least one organopolysiloxane and (2) a deposition product applied to the at least one organopolysiloxane by plasma-enhanced chemical vapor deposition of a composition including at least one monomer selected from the group consisting of N-vinyl pyrrolidone, vinyl acetate, ethylene oxide, alkyl acrylate, alkyl methacrylate, acrylamide, acrylic acid, and mixtures thereof, and methods of making and using the same.

Abstract: A lubricating oil additive composition comprising the reaction product of an (a) an alkylated aromatic ether alcohol, (b) a source of boron, and (c) a hydrocarbyl polyol, having at least two hydroxyl groups.

Abstract: Spray material for thermally coating a substrate, a thermal spray layer, and a cylinder for a reciprocating piston combustion engine coated with the thermal spray layer. The spray material includes a solid lubricant of ZnO. A volume fraction of ZnO in the spray material lies in a range from 0.1% to 15% of the volume of the spray material.

Abstract: A lubricant oil composition having a synergistic oxidative stability is disclosed, the composition comprising at least one hindered phenolic antioxidant, at least one mono-boronated hindered phenolic antioxidant, at least one di-boronated hindered phenolic antioxidant, at least one alkylated diphenylamine and at least one organomolybdenum compound. The invention also provides a lubricating oil additive concentrate composition that imparts synergistic oxidative stability to a lubricant oil upon its addition, the concentrate composition comprising at least one hindered phenolic antioxidant, at least one mono-boronated hindered phenolic antioxidant, at least one di-boronated hindered phenolic antioxidant, at least one alkylated diphenylamine and at least one organomolybdenum compound. Further, the concentrate compositions of the present invention may also be prepared with a high concentration of hindered phenolic antioxidants without deleterious effects on viscosity or lubricant solubility.

Abstract: The present invention is directed to a lubricant composition comprising GLT base stock with an ashless detergent to improve air release properties. The ashless detergents comprise the products resulting from the reaction of a salicylic acid, organic group substituted salicylic acid, sulfonic acid or organic groups substituted sulfur acid with thiadiazole or organic group substituted thiadiazole or an alkyl primary or secondary amine.

Abstract: A composition is disclosed that comprises the reaction product of an acidic organic compound and a boron compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.

Abstract: A lubricant oil composition having a synergistic oxidative stability is disclosed, the composition comprising at least one hindered phenolic antioxidant, at least one mono-boronated hindered phenolic antioxidant, at least one di-boronated hindered phenolic antioxidant, and at least one alkylated diphenylamine. The invention also provides a lubricating oil additive concentrate composition that imparts synergistic oxidative stability to a lubricant oil upon its addition, the concentrate composition comprising at least one hindered phenolic antioxidant, at least one mono-boronated hindered phenolic antioxidant, at least one di-boronated hindered phenolic antioxidant, and at least one alkylated diphenylamine. Further, the concentrate compositions of the present invention may also be prepared with a high concentration of hindered phenolic antioxidants without deleterious effects on viscosity or lubricant solubility.

Abstract: A grease composition using lubricating base oil that is biodegradable by microorganisms in nature and has an affinity to the human body is provided. More particularly, a distillation residue secondarily generated in production of biodiesel from vegetable oil (soybean oil and canola oil) is used as the lubricating base oil. The grease composition is produced by adding 1 to 20 wt % of additives to 100 to 95 wt % of distillation residues, which is generated in production of biodiesel, and 1 to 30 wt % of thickeners.

Abstract: A method of making a hindered phenolic antioxidant is disclosed wherein the method comprises: reacting an ester of the formula: wherein R1, R2, and R3 are independently selected alkyl groups and n is 0, 1, or 2, with an aliphatic polyhydroxyl alcohol of the general formula R(OH)n wherein R is an aliphatic group of from 2 to about 12 carbon atoms and n is an integer of from 2 to 7, provided that one hydroxyl is primary and the others are secondary or tertiary, in the presence of a strong acid catalyst; then, neutralizing the strong acid catalyst with an overbased detergent; and isolating the hindered phenolic antioxidant after the neutralization step.

Abstract: Compositions represented by the structures ##STR1## where Ar represents an aromatic group, each R is independently a hydrocarbyl group, at least one R having more than 12 carbon atoms, a is 1 to 4, and R' is hydrogen or alkyl, are useful as lubricant and fuel additives and as intermediates for the preparation of derivatives useful as such additives.

Abstract: An improved lubricant is provided by combining ester lubricants with alkylated polyaromatic lubricants. This combination provides a lubricant that exhibits the oxidation/varnish control of alkylated naphthenics, while at the same time providing the high temperature stability of the ester-type lubricants. A wide variety of ester lubricants can be used such as polyol esters, dimeracid esters and the like. Preferably, the alkylated aromatic lubricant has a viscosity greater than 25 up to 220 cSt measured at 40.degree. C. Greases can also be formed using this combination.