A lubricant composition said composition comprising at least one base oil and from 1 to 70 wt % of at least one friction modifying additive, wherein the composition is such that the viscosity reversibly reduces at a pressure from 50 MPa to 3 GPa. A mechanical system comprising the lubricant composition; use of the lubricant composition and methods of reducing friction using the lubricant composition are also disclosed.

The invention discloses synergistic combinations of surfactant blends and cleaning compositions employing the same. In certain embodiments a surfactant system is disclosed which includes an extended anionic surfactant with novel linker surfactants including one or more of an alkyl glycerol ether, an ethoxylated alkyl glycerol ether, an alcohol ethoxylate and/or a Gemini surfactant. This system forms emulsions with, and can remove greasy and oily stains, even those comprised of non-trans fats. The compositions may be used alone, as a pre-spotter or other pre-treatment or as a part of a soft surface or hard surface cleaning composition.

Disclosed are multifunctional compounds represented by structural formula (I):

##STR00001##

methods of producing compounds represented by structural formula (I) and their use in inhibiting corrosion in corrodible material.

A lubricant composition includes a mixture of grease and wax formed into a block which is solid at atmospheric pressure and temperatures up to 150° F., and which transforms into a semi-solid under mechanical loading. The mixture is formed with 5-25% of melted wax. The block may be coated to form a shell to remain solid at elevated temperatures. The block may include other additives. The grease block is suitable for use in various applications, including on a 5.sup.th wheel trailer hitch plate.

A highly wear-resistant plant genetic lubricant oil additive, a preparation method and an application thereof are disclosed. The additive includes 90-97% of a plant base oil and 3-10% of an aerogel. The plant base oil is prepared from a mixed plant oil of soybean oil, rapeseed oil, sesame oil, peanut oil, olive oil, castor seed oil, salad oil, sunflower seed oil and tung oil. The highly wear-resistant plant genetic lubricant oil additive is added to various lubricant oils for being used to devices, and a colloidal substance is generated after the devices are driven and heat is generated, so that the lubricant oils are firmly adhered to the surface of components. The lubricant oil additive not only has characteristics of high abrasion resistance, high and low temperature resistance, and oxidation resistance, but also the used lubricant oil can be regenerated and recycled after being recovered and filtered.

Various liquid and semisolid lubricant compositions are provided, in particular lubricant compositions containing oil from the seeds of the Brassicaceae Orychophragmus violaceus, preferably those that have been esterified with one or more fatty acids such as palmitoleic acid, oleic acid, linoleic acid, lauric acid, palmitic acid, stearic acid, or a combination thereof. In various aspects, lubricant compositions are provided that include a petroleum or a synthetic base oil and about 40% or less by weight of a liquid lubricant composition containing oil from the seeds of the Brassicaceae Orychophragmus violaceus, preferably those that have been esterified with one or more fatty acids. In various aspects, semisolid lubricant composition are provided containing an emulsion of (i) a thickener and (ii) an oil from the seeds of the Brassicaceae Orychophragmus violaceus, preferably those that have been esterified with one or more fatty acids.

Fuels, hydraulic fluids and lubricants made of or comprising a portion of renewable hydrocarbon raw materials, as well as biodegradable fuels, hydraulic fluids and lubricants are known to support microbial growth. Highly toxicorganic biocides have been added to reduce microbial growth. The use of such biocides can now be avoided, by instead using a stable solution of boric acid in a solvent, the boric acid being completely dissolved or at least free from any particles larger than 100 nm in size, and adding this solution to the fuel, hydraulic fluid or lubricant to give a final concentration of boron in the range of 1-100 ppm, preferably 1-50 ppm in the product. While preventing microbial growth, the addition of boron also reduces corrosion, in particular microbiologically induced corrosion (MIC).

A link chain cleaning and lubricating device, and lubricants for use therein.

One or more embodiments presently described are directed to lubricants and methods for making such lubricants. According to one embodiment, a lubricant suitable for use in a water-based drilling fluid may comprise one or more alkyl esters and a fatty acid blend comprising one or more medium-chain fatty acids. The one or more medium-chain fatty acids may be at least 50 weight percent (wt. %) of the fatty acid blend. The weight ratio of the one or more alkyl esters to the fatty acid blend may be from 1:1 to 3:1.

This disclosure provides a triglyceride oil possessing an extremely low cloud point and low viscosity concomitant with a higher than anticipated saturated fatty acid content, very low polyunsaturated fatty acid content, and low iodine value. While many naturally occurring triglyceride oils possess one or more of these properties, natural triglyceride oils lack one or more of these attributes, thus making them less than ideal in industrial applications, such as lubricants, fuels, or dielectric fluids. The combination of attributes possessed by a triglyceride oil described herein, achieved without the addition of any additives, is unique compared with natural counterparts and as such, can find wide applications in the aforementioned fields.