A method for preparing a nano suspension lubricant comprises providing substantially spherical nano particles of size ranging from about less than 50 nanometers to about 100 nanometers. The method further comprises mixing the nano particles and a surfactant in about 1:1 ratio in a solvent to form a mixture. The solvent is evaporated from the mixture to obtain surface modified nano particles. The surface modified nano particles include the nano particles coated with the surfactant. The method comprises mixing the surface modified nano particles with a lubricating fluid to form the nano suspension lubricant, where the lubricating fluid comprises about 90% to 99% base oil and about 1% to 10% additives.

To provide a steel wire rod having a lubricating coating, which can achieve both corrosion resistance such as long-term rust prevention property, and excellent appearance after heading.

The steel wire rod of the present disclosure includes a lubricating coating on a surface thereof, wherein the lubricating coating includes silicon (A), tungsten (B) and an alkali metal salt of fatty acid (C), a dry mass ratio of (B)/(A) is in a range of 1.3 to 18 and a dry mass ratio of (C)/{(A)+(B)} is in a range of 0.14 to 2.0, and the lubricating coating contains no phosphorus.

To provide a steel wire rod having a lubricating coating, which can achieve both corrosion resistance such as long-term rust prevention property, and excellent appearance after heading.

The steel wire rod of the present disclosure includes a lubricating coating on a surface thereof, wherein the lubricating coating includes silicon (A), tungsten (B) and an alkali metal salt of fatty acid (C), a dry mass ratio of (B)/(A) is in a range of 1.3 to 18 and a dry mass ratio of (C)/{(A)+(B)} is in a range of 0.14 to 2.0, and the lubricating coating contains no phosphorus.

In one aspect, lubricant compositions are described herein. In some embodiments, a lubricant composition described herein comprises a grease and milled metal sulfide particles dispersed in the grease. In other cases, a lubricant composition described herein comprises a grease, polytetrafluroethylene particles, zinc dithiophosphate, and molybdenum dialkyldithiocarbamate, wherein the polytetrafluroethylene particles, zinc dithiophosphate, and molybdenum dialkyldithiocarbamate are dispersed in the grease.

In one aspect, lubricant compositions are described herein. In some embodiments, a lubricant composition described herein comprises a grease and milled metal sulfide particles dispersed in the grease. In other cases, a lubricant composition described herein comprises a grease, polytetrafluroethylene particles, zinc dithiophosphate, and molybdenum dialkyldithiocarbamate, wherein the polytetrafluroethylene particles, zinc dithiophosphate, and molybdenum dialkyldithiocarbamate are dispersed in the grease.

The present invention relates to lubricating grease compositions comprising (a) at least one high-viscosity fluorinated oil having a viscosity of 500 to 1500 mm.sup.2/s, (b) boron nitride and (c) a binder selected from bentonite, alkali metal phosphates, aluminum phosphates, alkali metal silicates, alkaline earth metal silicates, aluminum silicates, alkaline earth metal carbonates, calcium borate, silicon dioxide, titanium dioxide, aluminum oxide and mixtures thereof. The lubricating grease compositions find use especially in the high-temperature sector, for example for the lubrication of oven pullout rails.

Provided are microalgal compositions and methods for their use. The microalgal compositions include lubricants that find use in industrial and other applications.

The present invention provides a Molybdenum or Tungsten chalcogenide nanoobject having: (a) an object size comprised from 0.1 to 500 nm, and (b) from 1 to 99% by weight of molecules of formula (I) with respect to the total weight of the nanoobject, wherein: A is OH; X is selected from: (C.sub.1-C.sub.20)alkyl optionally substituted with one or more radicals; a 2 to 20-member heteroalkyl optionally substituted with one or more radicals; and a homopolymer or copolymer comprising a polymeric chain; B is selected from: H, OH, NH.sub.2, (C.sub.1-C.sub.4)alkyl, halogen, phenyl substituted with one or more halogen radicals, benzyl substituted with one or more halogen radicals, C(O)R.sub.3, C(O)(R.sub.7), OC(O)(O)R.sub.3, C(O)(O.sup.), C(O)(O)R.sub.3, OR.sub.3, CH(OR.sub.3)(OR.sub.4), C(OR.sub.3)(OR.sub.4)(R.sub.5), C(OR.sub.3)(OR.sub.4)(OR.sub.5), C(OR.sub.3)(OR.sub.4)(OR.sub.5)(OR.sub.6), NR.sub.1R.sub.2, N.sup.+R.sub.1R.sub.2R.sub.3, C(NR.sub.1)(R.sub.2), C(O)(NR.sub.1R.sub.2), N(C(O)(R.sub.1)) (C(O)(R.sub.2))(R.sub.3), O(CN), NC(O), ONO.sub.2, CN, NC, ON(O), NO.sub.2, NO, C.sub.5H.sub.4N, SR.sub.1, SSR.sub.1, S(O)(R.sub.1), S(O)(O)(R.sub.1), S(O)(OH), S(O)(O)(OH), SCN, NCS, C(S)(R.sub.1), PR.sub.1R.sub.2, P(O)(OH).sub.2, OP(O)(OH).sub.2, OP(O)(OR.sub.1)(OR.sub.2), B(OH), B(OR.sub.1)(OR.sub.2), and B(OR.sub.1)(R.sub.2); provided that when B is H or (C.sub.1-C.sub.4) alkyl, then X is a homopolymer, a copolymer, or a 2 to 20-member heteroalkyl optionally substituted with one or more radicals as defined above.

The present invention also provides processes for the preparation of the nanoobjects, their use as additive for reducing the friction coefficient of a material, and compositions comprising thereof.

A-X-B(I)

Swash plate 3, which is a sliding member, includes base material 31, and coating layer 31 that is formed on base material 31 and has a thickness of 10 m or more. Coating layer 31 includes binder resin 321 and solid lubricant 322, which is dispersed in binder resin 321 and has a c-axis orientation, and a relative c-axis intensity ratio of solid lubricant 321 in coating layer 32 is 80% or more.

Swash plate 3, which is a sliding member, includes base material 31, and coating layer 31 that is formed on base material 31 and has a thickness of 10 m or more. Coating layer 31 includes binder resin 321 and solid lubricant 322, which is dispersed in binder resin 321 and has a c-axis orientation, and a relative c-axis intensity ratio of solid lubricant 321 in coating layer 32 is 80% or more.