Charged Block Co-polymers as Pour Point Depressants

Fouling components within a fluid may be prevented from accumulating when an additive contacts the fluid, e.g. by coating the wellbore with the additive prior to the production of the fluid or adding the additive directly to a produced fluid, etc. The additive may include, but is not limited to, a block copolymer having at least two components. The first component may be a charged monomer, and the second component may be a long chain fatty alcohol acrylate monomer. In one alternative embodiment, the fluid may be a hydrocarbon fluid, and the fouling components may be or include, but are not limited to wax, paraffins, asphaltene, resins, and combinations thereof. 1. A method comprising:contacting a fluid having at least one fouling component with an additive in an effective amount for at least partially reducing an accumulation of the at least one fouling component as compared to an otherwise identical fluid absent the additive; wherein the additive comprises a block copolymer comprising at least a first component and a second component; and wherein the first component is a charged monomer, and the second component is a long chain fatty alcohol acrylate monomer.2. The method of claim 1 , wherein the fluid is an oil-based fluid selected from the group consisting of a crude oil claim 1 , a refinery fluid claim 1 , a lubricant claim 1 , a fuel oil claim 1 , and combinations thereof.3. The method of claim 1 , wherein the at least one fouling component is selected from the group consisting of paraffin claim 1 , wax claim 1 , asphaltene claim 1 , resins claim 1 , and combinations thereof.4. The method of claim 1 , wherein the charged monomer is selected from the group consisting of a cationic acrylate based monomer claim 1 , an anionic acrylate based monomer claim 1 , a sulfonated styrene claim 1 , a cationic styrene derivative claim 1 , an ester derived from a cationic terminated alcohol claim 1 , an ester derived from a carboxylate terminated alcohol claim 1 , a ...

DISPERSANT, DISPERSION, METHOD FOR ADJUSTING VISCOSITY OF DISPERSANT, MOBILE DEVICE, SURFACE TREATMENT AGENT, ELECTROLYTIC SOLUTION, SEPARATOR, AND RECHARGEABLE LITHIUM ION BATTERY

A dispersant of the present invention is used after being added to a dispersant obtained by dispersing fine particles of a crystalline polymer as a dispersed particle and is characterized by containing a copolymer of a first monomer and a second monomer, the first monomer being a monomer that can be crystallized as a polymer having the molecular structure identical to that of the dispersed particle. 142-. (canceled)43. A method for the adjustment of a viscosity of a dispersion material containing fine particles of a crystalline polymer as a dispersed particle with a dispersant by changing a temperature of the dispersion material , wherein the dispersant comprises a copolymer of a first monomer with a second monomer , in which:the first monomer is a monomer crystallizable as a polymer having a molecular structure identical to the dispersed particle,the first monomer is one or more than one selected from:(A) ethylene;(B) a (meth)acrylate, a (meth)acrylamide, a vinylether, a vinylester, a siloxane, an α-olefine and a substituted styrene, each having a straight-chained alkyl side chain having at least eight carbon atoms;(C) a (meth)acrylate, a (meth)acrylamide, a vinylether, a vinylester, a siloxane, an α-olefine and a substituted styrene, each having an at least partially fluorinated straight-chained alkyl side chain having at least eight carbon atoms; and(D) polypropylene, andthe second monomer is one or more than one selected from:(E) a (meth)acrylate, a vinylether, a vinylester, a maleic ester, an itaconic ester, an acrylamide, and a substituted styrene, each having a straight-chained alkyl side chain having seven carbon atoms or less than seven carbon atoms;(F) a (meth)acrylate, a vinylether, a vinylester, a maleic ester, an itaconic ester, an acrylamide, and a substituted styrene, each having a branched alkyl side chain having seven carbon atoms or less than seven carbon atoms;(G) a (meth)acrylate, a vinylether, a vinylester, a maleic ester, an itaconic ester, and ...

ON-SITE DRY SILICONE LUBRICANT PRODUCTION

A dry silicone lubricant concentrate is mixed with a liquid on-site to manufacture a RTU dry silicone conveyor lubricant. The dry silicone lubricant concentrate is composed of a silicone emulsion with 1-99% silicone oil. In some embodiments, other components are added to the mixture to modify selected qualities and characteristics of the resultant dry silicone lubricant. 1. A lubricant to apply on machinery , comprising:a dry silicone lubricant concentrate including a silicone emulsion with 1-99% silicone oil; anda liquid to add to the dry silicone lubricant concentrate to form a dry silicone lubricant.2. The lubricant of wherein the dry silicone lubricant concentrate includes a wetting agent.3. The lubricant of wherein the dry silicone lubricant concentrate includes a lubricating agent.4. The lubricant of wherein the lubricating agent includes glycerin.5. The lubricant of wherein the liquid comprises water.6. The lubricant of wherein the liquid comprises a material selected from the group consisting of paramagnetic water claim 1 , electrochemical activated water claim 1 , ultra-pure water claim 1 , low zeta potential water claim 1 , micro-oxygenated water claim 1 , water containing nanobubbles claim 1 , bio-magnetized water claim 1 , demagnetized water claim 1 , R.O. water claim 1 , sodium hypochlorite claim 1 , dissolved chloride dioxide claim 1 , and stabilized chlorine dioxide.7. The lubricant of wherein the liquid comprises a biocide solution.8. The lubricant of wherein the dry silicone lubricant concentrate is diluted using a dosing system.9. The lubricant of wherein the dry silicone lubricant prevents biofilm formation.10. A method of making a lubricant to apply on machinery claim 1 , comprising:providing a dry silicone lubricant concentrate including a silicone emulsion with 1-99% silicone oil; andapplying a liquid to the dry silicone lubricant concentrate to form a dry silicone lubricant.11. The method of wherein the dry silicone lubricant concentrate ...

ANTIFOAM ADDITIVES FOR USE IN LOW VISCOSITY APPLICATIONS

A lubricant composition comprising a major amount of a base oil having a kinematic viscosity between 2 and 8 cSt at 100° C. and a minor amount of an additive composition represented by formula IV: 2. The lubricant composition of wherein x is between 100 and 300 and y is between 10 and 20.3. (canceled)5. The lubricant composition of wherein subscript a is a positive integer of 2-6 and subscript b is a positive integer of 20-70.6. The lubricant composition of wherein subscript a is a positive integer of 2-6 and subscript b is a positive integer of 25-45.8. The lubricant composition of wherein m is a positive integer of 3-6 and n is a positive integer of 20-40.9. The lubricant composition of wherein formula III is a polymer selected from the group consisting of a random copolymer or a block copolymer.11. The lubricant composition of wherein x is between 160 and 190 and y is between 14 and 18 claim 10 ,m is a positive integer of 3-6 and n is a positive integer of 20-40 claim 10 , and Q is hydrogen or methyl.12. (canceled)13. The lubricant composition of claim 1 , wherein said minor amount of an additive composition delivers between 2 and 50 ppm of silicon to the lubricant composition.14. The lubricant composition of claim 10 , wherein said minor amount of an additive composition delivers between 2 and 25 ppm of silicon to the lubricant composition.15. The lubricant composition of wherein the base oil has a kinematic viscosity between 2 and 6 cSt at 100° C.16. The lubricant composition of claim 1 , further comprising an oil-soluble ashless dispersant selected from the group consisting of: a succinimide dispersant claim 1 , a succinic ester dispersant claim 1 , a succininic ester-amide dispersant claim 1 , a Mannich base dispersant claim 1 , phosphorylated claim 1 , boronated or phosphorylated and boronated forms thereof.17. The lubricant composition of claim 1 , further comprising one or more of the following: an air expulsion additive claim 1 , an antioxidant claim 1 , ...

AQUEOUS POUR POINT DEPRESSANT DISPERSION COMPOSITION

The present invention relates to an aqueous pour point depressant dispersion composition comprising a thermoplastic polymer, preferably ethylene vinyl acetate (EVA); a dispersing agent; water; optionally an aqueous freezing point depressant; and optionally a stabilizing agent wherein the volume average particle size of the dispersed thermoplastic polymer is equal to or less than 1 micrometers and a method to make and use said composition. 2. The aqueous pour point depressant dispersion composition of wherein the average particle size of the dispersed EVA is equal to or less than 1 micrometer claim 1 , the amount of dispersing agent in the final composition is from 1 to 10 weight percent claim 1 , and the water:aqueous freezing point depressant mixture in the final composition is present in an amount of from 40 to 75 weight percent claim 1 , the water:aqueous freezing point depressant ratio is from 40:60 to 70:30.3. The aqueous pour point depressant dispersion composition of further comprising:v a stabilizing agent in an amount of from 0.5 weight percent to 5 weight percent.4. The aqueous pour point depressant dispersion composition of wherein the polymer i is an ethylene vinyl acetate copolymer with 28 to 32 weight percent vinyl acetate claim 1 , and a melt index (determined according to ASTM D1238 at 190° C. and 2.16 kg) of 43 g/10 min.5. The aqueous pour point depressant dispersion composition of wherein the polymer i is an ethylene vinyl acetate copolymer with 40 weight percent vinyl acetate claim 1 , and a melt index (determined according to ASTM D1238 at 190° C. and 2.16 kg) of 52 g/10 min.6. The aqueous pour point depressant dispersion composition of wherein the dispersing agent ii comprises one or more of:{'sub': 1', '2', '1', '2, 'a a fatty acid/salt having the formula RCOORwherein Ris a straight chain, saturated or unsaturated, hydrocarbon radical of 8 to 25 carbon atoms and Ris H or a base-forming radical;'}b an alkyl, arene and/or alkylarene sulfonate;c a ...

Self-Lubricating Polymer Composition

A polymer resin composition is disclosed including a chemically attached lubricant structure to produce a self-lubricating medical device thereby eliminating the need of a secondary lubrication step currently required which is useful in medical and surgical devices. 1. A self-lubricating polyurethane comprising a reaction product of a diisocyanate and a diol mixture containing a short chain diol , a long chain polyether or polyester diol , and a lubricant.2. The self-lubricating polyurethane of wherein the diisocyanate is selected from the group consisting of an aliphatic diisocyanate claim 1 , alicyclic diisocyanate and an aromatic diisocyanate.3. The self-lubricating polyurethane of wherein the diisocyanate is selected from the group consisting of 4 claim 2 ,4-diphenyl methane diisocyanate (MDI) claim 2 , toluene diisocyanate (TDI) claim 2 , isophorone diisocyanate (IPDI) claim 2 , and methylene bis (4-cyclohexyl isocyanate) (HMDI).4. The self-lubricating polyurethane of wherein the short chain diol is selected from the group consisting of ethylene glycol claim 1 , 1 claim 1 ,3-propylene glycol claim 1 , 1 claim 1 ,4-butane diol claim 1 , neopentyl glycol claim 1 , and alicyclic glycols having up to 10 carbon atoms.5. The self-lubricating polyurethane of wherein the polyester diol is a polyalkylene glycol.6. The self-lubricating polyurethane of wherein the polyalkylene glycol is poly(tetramethylene ether) glycol.7. The self-lubricating polyurethane of wherein the lubricant is a non-silicone diol claim 1 , silicon diol claim 1 , or fluorinated lubricant.8. The self-lubricating polyurethane of wherein the silicone diol is polydimethylsiloxane diol.9. The self-lubricating polyurethane of wherein the polydimethylsiloxane diol is present in an amount ranging from about 3 to 10 weight percent of the polyurethane composition.10. A medical article molded from the self-lubricating polyurethane composition of .11. The medical article of claim 10 , wherein the medical ...

USE OF COLD FLOW IMPROVER COMPOSITIONS FOR FUELS, BLENDS THEREOF WITH BIOFUELS AND FORMULATIONS THEREOF

The present invention relates to the use of polyalkyl(meth)acrylates as an additive to fuels, especially middle distillate fuels and blends thereof. The present invention further relates to the use of a composition comprising polyalkyl(meth)acrylates as dispersing species susceptible to disperse waxes and sludgy material at low temperatures and a hydrocarbon solvent/an oil for improving the cold flow properties of fuel oil and fuel oil compositions. The present invention further relates to the use of these compositions as an additive to fuels, especially in the function of paraffin dispersant, to such fuels themselves and to fuel additive concentrates which comprise this composition dissolved in a hydrocarbon solvent or an oil. 2. The method according to claim 1 , wherein the polyalkyl(meth)acrylate has a number average molecular weight Mof from 2500 to 100000.3. The method according to claim 1 , wherein the polyalkyl(meth)acrylate has a number average molecular weight Mof from 4000 to 20000.4. The method according to claim 1 , wherein the polydispersity M/Mof the polyalkyl(meth)acrylate is from 1 to 8.5. The method according to claim 1 , wherein the polydispersity M/Mof the polyalkyl(meth)acrylate is from 1.3 to 2.5.6. The method according to claim 1 , wherein there is a positive amount of the vinyl aromatic monomer (d) which is selected from the group consisting of styrene and substituted styrene.8. The method according to claim 1 , wherein the N-dispersant monomer of component (e) is selected from the group consisting of vinyl substituted nitrogen heterocyclic monomers claim 1 , N-vinyl-substituted nitrogen heterocyclic monomers claim 1 , dialkylaminoalkyl acrylate claim 1 , dialkylaminoalkyl methacrylate monomers claim 1 , methacrylamide monomers claim 1 , N-tertiary alkyl acrylamides and corresponding methacrylamides claim 1 , vinyl substituted amines and N-vinyl lactams.10. A method for improving the cold flow properties of a fuel oil composition claim 1 , the ...

LUBRICATING OIL COMPOSITION AND MECHANICAL APPARATUS

A lubricating oil composition contains: (A) organopolysiloxane; and (B) at least one of a sulfur compound, a phosphorus compound and a zinc compound, the lubricating oil composition having a kinematic viscosity not less than 1 mm/s and less than 40.0 mm/s at 100 degrees C. The lubricating oil composition is favorably usable in mechanical devices such as a hydraulic device, a stationary gear, an automobile transmission, a motor/battery cooling device and a joint. 1. A lubricating oil composition comprising:(A) an organopolysiloxane; and(B) at least one compound selected from the group consisting of a sulfur compound, a phosphorus compound and a zinc compound,{'sup': 2', '2, 'wherein the lubricating oil composition has a kinematic viscosity not less than 1 mm/s and less than 40.0 mm/s at 100 degrees C.'}2. The lubricating oil composition of claim 1 , wherein the component (B) is an extreme pressure agent or an antiwear agent.3. The lubricating oil composition of claim 1 , further comprising (C) a friction modifier.4. The lubricating oil composition of claim 3 , wherein the component (C) is at least one member selected from the group consisting of an oleic acid claim 3 , oleylamine and oleic amide.5. The lubricating oil composition of claim 1 , wherein the lubricating oil composition is adapted to be used in a mechanical device.65. The lubricating oil composition of claim claim 1 , wherein the mechanical device is selected from the group consisting of a hydraulic device claim 1 , a stationary gear claim 1 , an automobile transmission claim 1 , a motor/battery cooling device and a joint.7. A mechanical device comprising the lubricating oil composition of .8. The mechanical device of claim 7 , wherein the mechanical device is selected from the group consisting of a hydraulic device claim 7 , a stationary gear claim 7 , an automobile transmission claim 7 , a motor/battery cooling device and a joint.9. The lubricating oil composition of claim 1 , wherein the component (B) ...

PACKAGING HAVING SLIDING LAYER AND METHOD FOR PHARMACEUTICAL AND COSMETIC SUBSTANCES AND PREPARATION FOR PRODUCING SAME

A liquid preparation for application to an inner side of a hollow body to produce a sliding layer on a packaging for pharmaceuticals or cosmetic products comprises the following constituents: a reactive silicone system for forming a silicone network of the sliding layer, a catalyst for catalyzing the cross-linking reaction of the reactive silicone system, at least one unreactive silicone oil, and at least one diluent. The diluent comprises a silicon-containing compound and a content of the at least one diluent in the preparation amounts to more than 45 percent by weight and less than 95 percent by weight in the preparation. 1. A liquid preparation for application to an inner side of a hollow body to produce a sliding layer on a packaging for pharmaceuticals or cosmetic products , the preparation comprising:a reactive silicone system for forming a silicone network of the sliding layer;a catalyst for catalyzing a cross-linking reaction of the reactive silicone system;at least one unreactive silicone oil; andat least one diluent comprising a silicon-containing compound, a content of the at least one diluent in the preparation amounting to more than 45 percent by weight and less than 95 percent by weight in the preparation.2. The preparation of claim 1 , wherein the reactive silicone system is a multicomponent system comprising a first component and a second component.3. The preparation of claim 2 , wherein the first component has at least one first functional group and the second component has a plurality of second functional groups.4. The preparation of claim 2 , wherein a mass ratio of the first component to the second component is in the range of 10:1 to 30:1.5. The preparation of claim 1 , wherein the preparation has a viscosity at a temperature of 23° C. in the range of 1 cSt to 50 claim 1 ,000 cSt.6. The preparation of claim 1 , wherein the at least one diluent at least one of comprises a silicon-containing organic compound having at most 6 silicon atoms or has a ...

METHOD FOR PRODUCING JET FUEL COMPOSITION, AND JET FUEL COMPOSITION

An object is to provide a method for producing a jet fuel composition capable of producing a jet fuel composition with excellent quality at a high yield even when a jet fuel blendstock derived from an FT synthesis oil is used, and a jet fuel composition produced by the production method. It is characterized by including a step of mixing a certain Fischer Tropsch (FT) synthesis jet fuel blendstock with a certain petroleum based jet fuel blendstock so that the ratio of the FT synthesis jet fuel blendstock in the composition ranges from 20 to 80% by volume. 1. A method for producing a jet fuel composition , including a step of mixing a Fischer Tropsch (FT) synthesis jet fuel blendstock having a density at 15° C. of 0.720 to 0.780 g/cm , a flash point of 38 to 48° C. and a freezing point of −47 to −43° C. with a petroleum based jet fuel blendstock having a density at 15° C. of 0.770 to 0.850 g/cm , a flash point of 40 to 48° C. , a freezing point of −70 to −50° C. and an aromatic content of 10 to 30% by volume so that the ratio of the FT synthesis jet fuel blendstock in the composition ranges from 20 to 80% by volume.2. A method for producing a jet fuel composition according to claim 1 , wherein the FT synthesis jet fuel blendstock has a 5% distillation temperature of 160 to 180° C. and a 90% distillation temperature of 210 to 225° C.3. A jet fuel composition obtained by the production method according to claim 1 , wherein the density at 15° C. is 0.760 to 0.785 g/cm claim 1 , the sulfur content is not more than 0.3% by mass claim 1 , the aromatic content is 5 to 30% by volume claim 1 , the flash point is 38 to 43° C. claim 1 , and the freezing point is −50 to −45° C. This invention relates to a method for producing a jet fuel composition, and a jet fuel composition, particularly a method for producing a jet fuel composition capable of producing a jet fuel composition with excellent quality even when a jet fuel blendstock derived from FT synthesis oil is used, and a jet ...

POLYMER FORMULATIONS IN SOLVENTS WITH A HIGH FLASHPOINT, PROCESSES FOR PRODUCTION THEREOF AND USE THEREOF AS POUR POINT DEPRESSANTS FOR CRUDE OILS, MINERAL OILS OR MINERAL OIL PRODUCTS

Polymer formulations comprising at least two different solvents having a flashpoint ≧60° C., and polymeric compositions obtainable by free-radical polymerization of at least one alkyl (meth)acrylate in the presence of at least one ethylene-vinyl ester copolymer. Multistage process for producing such formulations and the use of such formulations as pour point depressants for crude oils, mineral oils or mineral oil products. 1. A process for producing a polymer formulation at least comprisingtwo different solvents and [{'sub': '2', 'sup': 1', '2', '1', '2, 'the monomers (A) comprising at least 70% by weight - based on the amount of all monomers (A)—of at least one alkyl (meth)acrylate (A1) of the general formula HC=CR-COORwhere Ris H or a methyl group and Ris a linear alkyl radical having 12 to 60 carbon atoms,'}, {'sub': 2', '1', '4, 'sup': 3', '3, 'the ethylene-vinyl ester copolymers (B) comprising 55 to 85% by weight of ethylene and 15 to 45% by weight of vinyl esters of the general formula HC=CH-O-(O)C-R(III) where Ris H or a C- to Chydrocarbyl radical, and'}, 'the amount of the monomers (A) being 70 to 90% by weight and that of the ethylene-vinyl ester copolymers (B) 10 to 30% by weight based on the sum of the monomers (A) and the ethylene-vinyl ester copolymers (B) together,, 'a polymeric composition obtainable by free-radical polymerization of at least one monoethylenically unsaturated monomer (A) in the presence of at least one ethylene-vinyl ester copolymer (B),'}wherein the solvents comprisea nonpolar solvent (S1) comprising saturated aliphatic hydrocarbyl groups and having a flashpoint ≧60° C., andan aromatic hydrocarbon (S2) having a flashpoint >60° C., said process comprising:(I) providing a solution at least comprising monomers (A) and ethylene-vinyl ester copolymers (B) each in the abovementioned amounts in at least one solvent (S1), and(II) free-radically polymerizing the monomers (A) in the presence of the ethylene-vinyl ester copolymers (B) by ...

BEARING MATERIAL

A plastic bearing material of a bearing may include a block copolymer. The block copolymer may include structural blocks of two or more different polymers. A first polymer may include at least one of polyamide-imide and polybenzimidazole. A second polymer may include at least one of polydimethylsiloxane, methyl vinyl ether and polyisobutene. A method for manufacturing a plastic bearing material may include synthesizing a structural block of a first polymer and a structural block of a second polymer to define a block copolymer via a condensation reaction. 1. A plastics bearing material comprising a block copolymer.2. A plastics bearing material according to claim 1 , wherein the block copolymer includes structural blocks of two or more different polymers.3. A plastics bearing material according to claim 2 , wherein the structural block of a first polymer includes at least one of polyamide-imide and polybenzimidazole.4. A plastics bearing material according to claim 3 , in which wherein the structural block of a second polymer includes a polymer having a lower hardness than the first polymer.5. A plastics bearing material according to claim 3 , wherein the structural block of a second polymer includes at least one of polydimethylsiloxane claim 3 , methyl vinyl ether and polyisobutene.6. A plastics bearing material according to claim 4 , wherein the block copolymer contains more than one of 5 wt % claim 4 , 10 wt % and 15 wt % of the second polymer.7. A plastics bearing material according to claim 4 , wherein the block copolymer contains less than one of 50 wt % 40 wt % and 30 wt % of the second polymer.8. A plastics bearing material according to claim 4 , wherein the structural block of the second polymer has a molecular weight greater than one of 500 Da claim 4 , 1000 Da claim 4 , 1500 Da claim 4 , 2000 Da claim 4 , and 2500 Da.9. A plastics bearing material according to claim 4 , wherein the structural block of the second polymer has a molecular weight less than one ...

USE OF CROSSLINKED POLYMERS FOR LOWERING THE COLD FILTER PLUGGING POINT OF FUELS

The present invention concerns the use, for lowering the cold filter plugging point of a fuel composition, of one or more crosslinked polymers comprising at least one unit of the following formula (I): in which Rrepresents a hydrogen atom or a methyl group; E represents —O—CO—, or —CO—O— or —NH—CO— or —CO—NH—; and G represents a Cto Calkyl group; said copolymer having a crosslinking rate of between 0.5 mol % and 30 mol %. The invention also concerns additive compositions containing such a polymer, and fuel compositions with such polymers as additives, in combination with a cold flow improver (CFI) chosen from the copolymers and terpolymers of ethylene and vinyl and/or acrylic ester(s). 2. (canceled)3. The use as claimed in claim 1 , characterized in that the group E of the formula (I) is selected from: —CO—O— and —CO—NH— claim 1 , on the understanding that the group E is linked to the vinyl carbon via the carbon atom claim 1 , and preferably the group E of the formula (I) is the group —CO—O—.4. The use as recited in claim 1 , characterized in that the group G of the formula (I) is a linear or branched acyclic Cto C claim 1 , preferably Cto C claim 1 , more preferentially Cto C claim 1 , more preferentially Cto C claim 1 , even more preferentially Cto C claim 1 , even better Cto Cor Cto C claim 1 , and even more preferentially Cto Calkyl radical.5. The use as recited in claim 4 , characterized in that the group E is a group —CO—O— claim 4 , E being connected to the vinyl carbon via the carbon atom claim 4 , and the group G is a linear or branched acyclic Cto C claim 4 , preferably Cto C claim 4 , more preferentially Cto C claim 4 , even more preferentially Cto C claim 4 , and even better Cto Cor Cto C claim 4 , and even more preferentially Cto Calkyl radical.6. The use as recited in claim 1 , characterized in that the crosslinked polymer is a homopolymer.7. The use as recited in claim 1 , characterized in that the crosslinked polymer is a copolymer selected from ...

Intrinsic Low Friction Polyoxymethylene

A tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer and at least one tribological modifier. The tribological modifier may comprise at least one tribological modifier comprising an ultra-high molecular weight silicone having a kinematic viscosity of greater than 100,000 mms. The composition may exhibit a dynamic coefficient of friction against a counter-material of from about 0.01 to about 0.15. The polyoxymethylene polymer compositions provide polymer articles with improved tribological properties and mechanical properties. 1. A polyoxymethylene polymer composition , the polyoxymethylene polymer composition comprisinga polyoxymethylene copolymer, and{'sup': 2', '−1, 'at least one tribological modifier comprising an ultra-high molecular weight silicone having a kinematic viscosity of greater than 100,000 mms,'}wherein the polymer composition is substantially free of silicone oil, andwherein the polymer composition has a dynamic coefficient of friction against a counter-material of from about 0.01 to about 0.15.2. The polymer composition of claim 1 , wherein the ultra-high molecular weight silicone is present in an amount of from about 0.1 to about 10 wt. %.3. The polymer composition of claim 1 , wherein the ultra-high molecular weight silicone is a polydimethylsiloxane.4. The polymer composition of claim 1 , wherein the tribological modifier further comprises a hexagonal boron nitride in an amount of from about 0.1 to about 5 wt. %.5. The polymer composition of claim 4 , wherein the hexagonal boron nitride has a particle size of from about 0.5 μm to about 10 μm.6. The polymer composition of claim 1 , wherein the tribological modifier further comprises polytetrafluoroethylene in an amount of from about 0.1 to about 50 wt. %.7. The polymer composition of claim 1 , wherein the composition further comprises a polyethylene wax in an amount of from about 0.1 to ...

GREASE COMPOSITION AND ROLLING BEARING

A grease composition includes base oil, a thickener, and an organic modified polysiloxane. The base oil is an alkyl diphenyl ether. The thickener is a urea thickener, and the grease composition contains 10 to 30 mass % of the thickener based on the total amount of the base oil and the thickener. The grease composition contains 0.2 to 10 mass % of the organic modified polysiloxane based on the total amount of the base oil and the thickener. 1. A grease composition , comprising:base oil that is an alkyl diphenyl ether;a thickener that is a urea thickener, the grease composition containing 10 to 30 mass % of the thickener based on a total amount of the base oil and the thickener; andan organic modified polysiloxane, the grease composition containing 0.2 to 10 mass % of the organic modified polysiloxane based on the total amount of the base oil and the thickener.2. The grease composition according to claim 1 , wherein the organic modified polysiloxane is at least one selected from aralkyl modified polymethyl alkyl siloxanes and polyether modified polydimethylsiloxanes.3. A rolling bearing comprising a grease composition sealed in the rolling bearing claim 1 , wherein;the grease composition contains base oil, a thickener, and an organic modified polysiloxane;the base oil is an alkyl diphenyl ether;the thickener is a urea thickener, and the grease composition contains 10 to 30 mass % of the thickener based on a total amount of the base oil and the thickener; andthe grease composition contains 0.2 to 10 mass % of the organic modified polysiloxane based on the total amount of the base oil and the thickener.4. The rolling bearing according to claim 3 , wherein the organic modified polysiloxane is at least one selected from aralkyl modified polymethyl alkyl siloxanes and polyether modified polydimethylsiloxanes. The disclosure of Japanese Patent Application No. 2018-190187 filed on Oct. 5, 2018 including the specification, drawings and abstract is incorporated herein by ...

AQUEOUS SURFACE-TREATING AGENT

An aqueous surface-treating agent, which comprises a silicone oil aqueous emulsion, a polyurethane resin aqueous emulsion, and a silane compound represented by the following general formula: 19-. (canceled)11: An aqueous surface-treating anti-adhesive agent according to claim 10 , wherein 10-60 parts by weight of the silane compound and/or a hydrolyzate thereof is used on the basis of 100 parts by weight in terms of nonvolatile matters of the silicone oil.12: An aqueous surface-treating anti-adhesive agent according to claim 10 , for application to the surfaces of rubber materials or resin materials.13: An aqueous surface-treating anti-adhesive agent according to claim 12 , wherein the rubber materials are seal materials.14: A seal material surface-treated by an aqueous surface-treating anti-adhesive agent according to .15: An aqueous surface-treating anti-adhesive agent according to claim 12 , wherein the rubber materials are sliding members.16: A sliding member surface-treated by an aqueous surface-treating anti-adhesive agent according to . This application is a continuation application of U.S. patent application Ser. No. 12/681,919, filed Apr. 7, 2013 which in turn was a 35 U.S.C. §371 national phase filing of International Patent Application No. PCT/JP2008/062994, filed Jul. 18, 2008. Priority is claimed under 35 U.S.C. §120 to U.S. patent application Ser. No. 12/681,919 and to International Patent Application No. PCT/JP2008/062994. Priority is further claimed under 35 U.S.C. §119 to Japanese Patent Application Nos. 2007-263457, filed Oct. 9, 2007 and 2008-164431, filed Jun. 24, 2008.The present invention relates to an aqueous surface-treating agent, and more particularly to an aqueous surface-treating agent effectively applicable to surfaces of rubber seal materials, etc.Most of now available rubber seal materials suffer from sticking problems between seal materials themselves or sticking to contact surfaces of mating materials such as metals, resins, etc., ...

MAGNETIC RESIN COMPOUND, METHOD FOR PREPARING THE SAME, AND USE THEREOF

Disclosed is a magnetic dendrimer compound and a method for preparing the magnetic dendrimer compound, the molecular formula of which is shown in formula (I): Γ(CH)NRR(I). In this formula, Γ indicates magnetic particles coated with SiOon a surface thereof, the magnetic particles having been modified by a silane coupling agent; (CH)NRis a dendritic group, and Ris a lipophilic group, with 0≦n≦100. Further disclosed is a lubricant comprising the magnetic dendrimer compound. 1. A magnetic dendrimer compound , having a molecular formula as shown in formula (I):{'br': None, 'sub': 2', '3', '(2', {'sup2': 'n+1'}, '−1)', '(2', {'sup2': 'n+2'}, '−2)', '(2', {'sup2': 'n+1'}, '), 'sup': 1', '2, 'Γ(CH)NRR\u2003\u2003(I),'}{'sub': '2', 'wherein Γ indicates a magnetic particle coated with SiOon a surface thereof, the magnetic particle having been modified by a silane coupling agent,'}{'sub': 2', '3', '(2', {'sup2': 'n+1'}, '−1)', '(2', {'sup2': 'n+2'}, '−2), 'sup': '1', 'wherein (CH)NRis a dendritic group, and'}{'sup': '2', 'sub': (2', {'sup2': 'n+1'}, '), 'wherein Ris a lipophilic group, with 0≦n≦100.'}2. The magnetic dendrimer compound according to claim 1 , wherein the magnetic particle is a magnetic nanoparticle.3. The magnetic dendrimer compound according to claim 1 , wherein 0≦n≦10.4. The magnetic dendrimer compound according to claim 1 , wherein the magnetic particle comprises at least one selected from a group consisting of FeO claim 1 , Ni claim 1 , and γ-FeO.5. The magnetic dendrimer compound according to claim 1 , wherein the magnetic particle is selected from core-shell FeO&SiOmagnetic nanoparticles coated with SiOon an outer shell thereof claim 1 , said magnetic particles having been modified by a silane coupling agent.6. The magnetic dendrimer compound according to claim 1 , wherein the silane coupling agent is 3-aminopropyl triethoxysilane claim 1 , 3-glycidyloxypropyl trimethoxysilane claim 1 , or 3-aminopropyl trimethoxysilane.7. The magnetic dendrimer compound ...

Lubricant Coating and Medical Injection Device Comprising Such a Coating

The invention relates to a lubricant coating () for a medical injection device (), comprising successively: —a bottom layer () in contact with the medical device surface () of the container to be lubricated, comprising a mixture of cross-linked and non-cross-linked poly-(dimethylsiloxane), —an intermediate layer () consisting essentially of oxidized poly-(dimethylsiloxane) and having a thickness comprised between 10 and 30 nm and, —a top layer () consisting essentially of non-cross-linked poly-(dimethylsiloxane) and having a thickness of at most 2 nm. The invention also relates to a medical injection device comprising such a lubricant coating, and a manufacturing process for said coating. 1. A lubricant coating for a medical device , comprising:a bottom layer in contact with a surface of the medical device to be lubricated, comprising a mixture of cross-linked and non-cross-linked poly-(dimethylsiloxane);an intermediate layer consisting essentially of oxidized poly-(dimethylsiloxane) and having a thickness between 10 and 30 nm; anda top layer consisting essentially of non-cross-linked poly-(dimethylsiloxane) and having a thickness of at most 2 nm.2. The lubricant coating according to claim 1 , wherein the bottom layer is a gel.3. The lubricant coating according to claim 1 , having a thickness between 90 and 400 nm.4. The lubricant coating according to claim 1 , wherein the thickness of the bottom layer is between 58 and 388 nm.551. The lubricant coating according to claim 1 , wherein the formula of the oxidized poly-(dimethylsiloxane) of the intermediate layer () is:{'br': None, 'sub': 3', '2-x', 'x', 'n, '[SiO(CH)(OH)],'}where x ranges from 0.2 to 1.5 and n is an integer.6. The lubricant coating according to claim 5 , wherein x=0.75.7. The lubricant coating according to claim 5 , wherein n ranges from 70 to 100.8. The lubricant coating according to claim 1 , wherein the thickness of the intermediate layer is between 15 and 25 nm.9. A medical injection device claim ...

LUBRICATING OIL COMPOSITIONS AND METHODS OF USE

This disclosure relates to a method for improving air release and water separation in a lubricating oil. The method involves formulating a composition comprising at least one lubricating oil base stock as a major component, and one or more lubricating oil additives, as a minor component. The one or more lubricating oil additives include a mixture of antifoam agents. The mixture of antifoam agents includes at least one polysiloxane and at least one acrylate polymer. During operation of a lubricating system containing the lubricating oil, release of entrained air in the lubricating oil is improved, as determined by ASTM D-3427-15, and water separation from the lubricating oil is improved, as determined by ASTM D-1401-18b, as compared to release of entrained air and water separation achieved using a lubricating oil containing other than the mixture of antifoam agents. This disclosure also relates to lubricating oils having a mixture of antifoam agents including at least one polysiloxane and at least one acrylate polymer. 1. A lubricating oil having a composition comprising: at least one lubricating oil base stock as a major component; and one or more lubricating oil additives , as a minor component; wherein the one or more lubricating oil additives comprise a mixture of antifoam agents; wherein the mixture of antifoam agents comprises at least one polysiloxane and at least one acrylate polymer; wherein the polysiloxane has a kinematic viscosity (KV) less than about 20 ,000 cSt at 25° C. as determined by ASTM D-445-19; wherein the at least one polysiloxane is present in an amount from about 0.1 to less than about 30 ppm , calculated as content of Si; wherein the at least one acrylate polymer is present in an amount less than about 60 times the amount of the at least one polysiloxane , calculated as content of Si (ppm); wherein , during operation of a lubricating system containing the lubricating oil , release of entrained air in the lubricating oil is improved , as ...

DRY LUBRICANT FOR CONVEYING CONTAINERS

The passage of a container along a conveyor is lubricated by applying to the container or conveyor a mixture of a water-miscible silicone material and a water-miscible lubricant. The mixture can be applied in relatively low amounts, to provide thin, substantially non-dripping lubricating films. In contrast to dilute aqueous lubricants, the lubricants of the invention provide drier lubrication of the conveyors and containers, a cleaner conveyor line and reduced lubricant usage, thereby reducing waste, cleanup and disposal problems. 140-. (canceled)41. A method for lubricating the passage of a container along a conveyor in a conveyor line comprising: from about 0.1 to about 10 wt. % of a water-miscible silicone material forming a silicone emulsion;', 'from about 0.05 to about 20 wt. % of a phosphate ester;', 'a neutralizing agent comprising alkali metal hydroxide, amine, or a combination thereof; and', 'water,, 'applying a lubricant composition through a dispensing system, the lubricant composition comprisingwherein the lubricant composition is applied for a period of time and not applied for a period of time, and the ratio of not applied:applied time is at least 10:1.42. The method of claim 41 , further comprising preparing a premix of the phosphate ester and the neutralizing agent; and mixing the premix with the water-miscible silicone material.43. The method of claim 41 , wherein the phosphate ester comprises polyethylene phenol ether phosphate.44. The method of claim 41 , wherein neutralizing agent comprises sodium hydroxide.45. The method of claim 41 , wherein the dispensing system comprises non-energized nozzles.46. The method of claim 41 , wherein the silicone material comprises alkyl or aryl silicone; functionalized silicone selected from chlorosilanes claim 41 , amino-substituted siloxanes claim 41 , methoxy-substituted siloxanes claim 41 , epoxy-substituted siloxanes claim 41 , and vinyl-substituted siloxanes; or silanol.47. The method of claim 41 , wherein ...

LUBRICANT COMPOSITION

A lubricant composition for application onto a surface of drive elements includes: a base oil; and a silasesquioxane. In an embodiment, the silasesquioxane has the chemical formula [RSiO3/2]with: n=6, 8, 10, 12; where R independently of one another=alkyl (C1-C20), cycloalkyl (C3-C20), alkenyl (C2-C20), cycloalkenyl (C5-C20), alkynyl (C2-C20), cycloalkynyl (C5-C20), aryl (C6-C18) or heteroaryl group, oxy, hydroxy, alkoxy (C4-C10), oxirane polymer (degree of polymerization with 4 to 20 repeat units), carboxy, silyl, alkylsilyl, alkoxysilyl, siloxy, alkylsiloxy, alkoxysiloxy, silylalkyl, alkoxysilylalkyl, alkylsilylalkyl, halogen, epoxy (C2-C20), ester, aryl ether, fluoroalkyl, blocked isocyanate, acrylate, methacrylate, mercapto, nitrile, amine, and/or phosphine group, each substituted or unsubstituted. 1. A lubricant composition for application onto a surface of drive elements , comprising:a base oil; anda silasesquioxane.2. The lubricant composition according to claim 1 , wherein the silasesquioxane has the chemical formula [RSiO3/2]with: n=6 claim 1 , 8 claim 1 , 10 claim 1 , 12; where R independently of one another=alkyl (C1-C20) claim 1 , cycloalkyl (C3-C20) claim 1 , alkenyl (C2-C20) claim 1 , cycloalkenyl (C5-C20) claim 1 , alkynyl (C2-C20) claim 1 , cycloalkynyl (C5-C20) claim 1 , aryl (C6-C18) or heteroaryl group claim 1 , oxy claim 1 , hydroxy claim 1 , alkoxy (C4-C10) claim 1 , oxirane polymer (degree of polymerization with 4 to 20 repeat units) claim 1 , carboxy claim 1 , silyl claim 1 , alkylsilyl claim 1 , alkoxysilyl claim 1 , siloxy claim 1 , alkylsiloxy claim 1 , alkoxysiloxy claim 1 , silylalkyl claim 1 , alkoxysilylalkyl claim 1 , alkylsilylalkyl claim 1 , halogen claim 1 , epoxy (C2-C20) claim 1 , ester claim 1 , aryl ether claim 1 , fluoroalkyl claim 1 , blocked isocyanate claim 1 , acrylate claim 1 , methacrylate claim 1 , mercapto claim 1 , nitrile claim 1 , amine claim 1 , and/or phosphine group claim 1 , each substituted or unsubstituted.3. ...

LUBRICATING MEMBERS HAVING HYDROPHOBIC COMPONENTS FOR RAZOR CARTRIDGES

The invention relates to a solid compressed lubricating member for a razor cartridge comprising from 10% to 90% by weight of a particulate material comprising water soluble polymer and from 12% to 40% by weight of a hydrophobic compound or mixtures thereof; wherein at least a portion of said water soluble polymer particulate is spray coated with said hydrophobic compound and methods of manufacture thereof. 1. A solid compressed lubricating member for a razor cartridge comprising:i) from 10% to 90% by weight of a particulate material comprising a water soluble polymerii) from 12% to 40% by weight of a hydrophobic compound or mixtures thereof;wherein at least a portion of said water soluble polymer is spray coated with said hydrophobic compound.2. The solid compressed lubricating member for a razor cartridge according to claim 1 , wherein said lubricating member comprises from 12% to 30% by weight of said hydrophobic compound.3. The solid compressed lubricating member for a razor cartridge according to claim 1 , wherein said hydrophobic compound or mixtures thereof are selected from the group consisting of natural claim 1 , synthetic and silicone oils and or waxes and mixtures thereof; trigylcerides claim 1 , skin active agents claim 1 , sensates and mixtures thereof.4. The solid compressed lubricating member for a razor cartridge according to claim 1 , wherein said hydrophobic compound or mixtures thereof comprises capric and or caprylic triglycerides claim 1 , grape seed oil claim 1 , olive oil claim 1 , phenylated silicones claim 1 , shea butter claim 1 , cocoa butter claim 1 , lanolin claim 1 , essential oils claim 1 , peppermint oil claim 1 , isohexadecane claim 1 , petrolatum claim 1 , dimethicones and or mixtures thereof.5. The solid compressed lubricating member for a razor cartridge according to claim 1 , wherein said hydrophobic compound has a water solubility of 1 part to 1000 parts or greater claim 1 , preferably 10000 parts or greater of water.6. The ...

LUBRICATING MEMBERS FOR RAZOR CARTRIDGES

The invention relates to a solid compressed lubricating member for a razor cartridge comprising from 10% to 90% by weight of a particulate material comprising water soluble polymer and from 1% to 40% by weight of a silicone polymer or mixtures thereof; wherein at least a portion of said water soluble polymer particulate is spray coated with said silicone polymer and methods of manufacture thereof. 1. A solid compressed lubricating member for a razor cartridge comprising:i) from 10% to 90% by weight of a particulate material comprising a water soluble polymer andii) from 1% to 40% by weight of a silicone polymer or mixtures thereof;wherein at least a portion of said water soluble polymer is spray coated with said silicone polymer compound.2. The solid compressed lubricating member for a razor cartridge according to claim 1 , wherein said lubricating member comprises from 10% to 40% claim 1 , by weight of said silicone polymer or mixture thereof.3. The solid compressed lubricating member for a razor cartridge according to claim 1 , wherein said silicone polymer or mixtures thereof are selected from dimethicones claim 1 , cyclomethicones claim 1 , phenyl trimethicones claim 1 , trimethyl pentaphenyl trisiloxane claim 1 , phenylated silicones and or mixtures thereof.4. The solid compressed lubricating member for a razor cartridge according to claim 1 , further comprising a hydrophobic compound or mixtures thereof claim 1 , wherein said hydrophobic compound or mixtures thereof is selected from natural oil or wax claim 1 , synthetic oil or wax claim 1 , trigylcerides claim 1 , skin active agents claim 1 , senates and mixtures thereof.5. The solid compressed lubricating member for a razor cartridge according to claim 4 , wherein said hydrophobic compound or mixtures thereof comprises capric and or caprylic triglycerides claim 4 , grape seed oil claim 4 , olive oil claim 4 , shea butter claim 4 , cocoa butter claim 4 , lanolin claim 4 , essential oils claim 4 , peppermint ...

LOW SULFUR MARINE FUEL COMPOSITIONS

Heavy hydrotreated gas oil compositions are provided, along with marine fuel oil compositions and marine gas oil compositions that include a substantial portion of a hydrotreated heavy atmospheric gas oil. The hydrotreated heavy atmospheric gas oil can correspond to a gas oil with a relatively low viscosity and an elevated paraffin content in a narrow boiling range which results in a relatively high cloud point and/or pour point. 1. A method for forming a marine gas oil composition , comprising:blending a first fraction comprising a T10 distillation point of 300° C. or more, a T90 distillation point of 440° C. or less, a kinematic viscosity at 40° C. of 10.5 cSt to 16 cSt, a sulfur content of 0.03 wt % to 0.6 wt %, a pour point of 15° C. or more, a cloud point of 18° C. or more, and a paraffin content of 22 wt % or more,with one or more additional fractions having a kinematic viscosity at 40° C. of 2.0 cSt or less, a cloud point of −20° C. or less, a pour point of −40° C. or less, and an aromatics content of 20 wt % or more,to form a marine gas oil composition comprising a sulfur content of 0.05 wt % to 0.6 wt % relative to a weight of the marine gas oil composition, the marine gas oil composition comprising at least 30 wt % of the first fraction and at least 10 wt % of the one or more additional fractions.2. The method of claim 1 , wherein the marine gas oil composition further comprises 20 wt % or more of a hydrocracked gas oil claim 1 , the hydrocracked gas oil comprising a kinematic viscosity at 40° C. of 4.0 cSt to 10 cSt claim 1 , a cetane index of 45 or more claim 1 , a pour point of 15° C. or less claim 1 , and a cloud point of 18° C. or less.3. The method of claim 2 , wherein the marine gas oil comprises 70 wt % or more of a combination of the first fraction and the hydrocracked gas oil.4. The method of claim 1 , wherein the marine gas oil composition comprises a pour point of 9° C. or more; or wherein the marine gas oil composition comprises a cold filter ...

SILICONE FUNCTIONLIZED VISCOSITY INDEX IMPROVER

A multi-functional olefin copolymer viscosity index improver and a lubricating oil composition including such lubricant additive that provides improved viscometric properties and helps reduce low speed pre-ignition events at the same time. In one approach, the multi-functional olefin copolymer viscosity index improver is silicone functionalized and includes an acylated olefin copolymer with aminosilane or aminosiloxone pendant or side groups. 1. A multi-functional olefin copolymer viscosity index improver comprising an acylated olefin copolymer with aminosilane pendant groups , the acylated olefin copolymer including an olefin copolymer backbone with grafted acylating moieties thereon linking the aminosilane pendant groups to the olefin copolymer backbone.2. The multi-functional olefin copolymer viscosity index improver of claim 1 , wherein the aminosilane pendant groups are derived from aminoalkyl silanes claim 1 , aminoalkyl siloxanes claim 1 , aminoalkyl polysiloxanes claim 1 , aminoaryl silanes claim 1 , aminoaryl siloxanes claim 1 , aminoarl oxy silanes claim 1 , and combinations thereof.3. The multi-functional olefin copolymer viscosity index improver of claim 1 , wherein the multi-functional olefin copolymer viscosity index improver is the reaction product of the acylated olefin copolymer and the aminosilane selected from aminoalkyl silanes claim 1 , aminoalkyl silixones claim 1 , aminoalkyl polysiloxanes claim 1 , aminoaryl silanes claim 1 , aminoaryl siloxanes claim 1 , aminoarl oxy silanes claim 1 , and combinations thereof.4. The multi-functional olefin copolymer viscosity index improver of claim 3 , wherein the reaction product is further reacted with an amine selected from alkylamines claim 3 , alkylpolyamines claim 3 , or combinations thereof.5. The multi-functional olefin copolymer viscosity index improver of claim 1 , wherein the grafted acylating moieties are grafted dicarboxylic moieties.6. The multi-functional olefin copolymer viscosity index ...

DEFOAMING AGENT AND LUBRICATING OIL COMPOSITION

A defoaming agent comprising: a polymer comprising a repeating unit represented by the following general formula (1): 3. The defoaming agent according to claim 2 ,{'sup': '2', 'wherein Xis a repeating unit obtainable by polymerization of a second (meth)acryloyl group.'}4. The defoaming agent according to claim 1 ,{'sup': '1', 'wherein Xis a repeating unit obtainable by polymerization of a first (meth)acryloyl group.'}5. The defoaming agent according to claim 1 ,wherein the polymer comprises the repeating unit represented by the general formula (1) in an amount of no less than 10 mass % on the basis of the total mass of all repeating units in the polymer.6. The defoaming agent according to claim 1 ,wherein the polymer has a weight average molecular weight of 10,000 to 1,000,000.7. The defoaming agent according to claim 1 ,wherein the polymer is a star-shaped polymer.8. A lubricating oil composition comprising:(A) a lubricant base oil; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(B) the defoaming agent as in , in an amount of 1 to 100 mass ppm in terms of silicon on the basis of the total mass of the composition.'}9. The lubricating oil composition according to claim 8 , which is a lubricating oil for an automobile engine claim 8 , an automobile transmission claim 8 , or an automobile transaxle unit. The present invention relates to defoaming agents, and lubricating oil compositions containing the defoaming agents.Lubricating oil is used in various kinds of machinery so as to improve lubricity between members. Increase of foaming of the lubricating oil may lead to insufficient lubrication, failure to control hydraulic pressure, deteriorated cooling efficiency, and so on. Thus, lubricating oil is required to suppress foaming.For example, automobile engines, transmissions, and axle units are demanding increasingly more from lubricating oil, accompanying their recent improvements in performance and fuel efficiency. Continuous high-load operation or high-speed ...

DEFOAMING AGENT AND LUBRICATING OIL COMPOSITION

A defoaming agent including a polymer, the polymer including a repeating unit represented by the following general formula (1); and a repeating unit represented by the following general formula (3): 3. The defoaming agent according to claim 2 ,{'sup': '3', 'wherein Xis a repeating unit obtainable by polymerization of a third (meth)acryloyl group.'}4. The defoaming agent according to claim 1 ,{'sup': '2', 'wherein Xis a repeating unit obtainable by polymerization of a second (meth)acryloyl group; and'}{'sup': '1', 'Xis a repeating unit obtainable by polymerization of a first (meth)acryloyl group.'}5. The defoaming agent according to claim 1 ,wherein the polymer comprises the repeating unit represented by the general formula (1) in an amount of no less than 10 mass % on the basis of the total mass of all repeating units in the polymer.6. The defoaming agent according to claim 1 ,wherein the polymer has a weight average molecular weight of 10,000 to 1,000,000.7. A lubricating oil composition comprising:(A) a lubricant base oil; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(B) the defoaming agent as in , in an amount of 1 to 100 mass ppm in terms of silicon on the basis of the total mass of the composition.'}8. The lubricating oil composition according to claim 7 , which is a lubricating oil for an automobile engine claim 7 , an automobile transmission claim 7 , or an automobile transaxle unit. The present invention relates to defoaming agents, and lubricating oil compositions containing the defoaming agents.Lubricating oil is used in various kinds of machinery so as to improve lubricity between members. Increase of foaming of the lubricating oil may lead to insufficient lubrication, failure to control hydraulic pressure, deteriorated cooling efficiency, and so on. Thus, lubricating oil is required to suppress foaming.For example, automobile engines, transmissions, and axle units are demanding increasingly more from lubricating oil, accompanying their recent ...

METHOD FOR IMPROVING HIGH TEMPERATURE ANTIFOAMING PERFORMANCE OF A LUBRICATING OIL

This disclosure provides a method for improving high temperature antifoaming performance of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition with a lubricating oil base stock as a major component, and at least one silicone antifoaming agent, as a minor component. The silicone antifoaming agent is delivered to the lubricating oil by contacting the lubricating oil with a cured silicone (e.g., room temperature vulcanized (RTV) silicone) at a temperature, and for a period of time, sufficient to deliver silicone to the lubricating oil. The delivered silicone is soluble in the lubricating oil. The lubricating oils are useful as passenger vehicle engine oils (PVEO) and commercial vehicle engine oils (CVEO). 1. A method for delivering a silicone antifoaming agent to a lubricating oil , said method comprising contacting the lubricating oil with a cured silicone at a temperature , and for a period of time , sufficient to deliver silicone to the lubricating oil; wherein the delivered silicone is soluble in the lubricating oil.2. The method of wherein claim 1 , in an engine or other mechanical component lubricated with the lubricating oil claim 1 , high temperature antifoaming performance is improved as compared to high temperature antifoaming performance achieved using a lubricating oil containing a silicone antifoaming agent delivered from uncured silicone claim 1 , as determined by ASTM D6082 or ASTM D892 Sequence II.3. The method of wherein the cured silicone comprises room temperature vulcanized (RTV) silicone.4. The method of wherein the temperature is from 10° C. to 30° C. claim 1 , and the period of time is from 1 hour to 240 hours.5. The method of wherein the room temperature vulcanized (RTV) silicone comprises low molecular weight leachates.6. The method of wherein the low molecular weight leachates exhibit a bimodal molecular weight ...

LUBRICATING OIL COMPOSITION, METHOD FOR DEFOAMING LUBRICATING OIL, AND DEFOAMING AGENT COMPOSITION

A lubricating oil composition including: a lubricant base oil; (A) a first defoaming agent obtainable by a process, the process including the step of: polymerizing (b) at least one defoaming agent monomer in (a) a polymerization solvent under coexistence of (c) a polymer soluble in the polymerization solvent; and (B) a second defoaming agent being a silicone defoaming agent. 3. The lubricating oil composition according to claim 1 ,wherein a ratio of a content of the (A) first defoaming agent in terms of silicon toa content of the (B) second defoaming agent in terms of silicon is 0.01 to 100.4. The lubricating oil composition according claim 1 ,wherein the polymerizing step is carried out by dispersion polymerization; andthe (c) polymer soluble in the polymerization solvent is (cl) a polymer dispersant.5. The lubricating oil composition according to claim 4 ,the (a) polymerization solvent comprising a hydrocarbon solvent having 6 or more carbons, a mineral oil, a synthetic oil, or an ester oil, or combination thereof.6. The lubricating oil composition according to claim 4 ,the (c1) polymer dispersant comprising a polyalkyl (meth)acrylate having a weight average molecular weight of 10,000 to 1,000,000.7. The lubricating oil composition according to claim 1 ,wherein the polymerizing is carried out by solution polymerization.8. The lubricating oil composition according to claim 7 ,the (c) polymer soluble in the polymerization solvent comprising a polyalkyl (meth)acrylate having a weight average molecular weight of 10,000 to 1,000,000.10. The method according to claim 9 ,the diluting solvent comprising a hydrocarbon solvent having 6 or more carbons, a mineral oil, a synthetic oil, an ester oil, an aliphatic ether having 4 or more carbons, an ester of an aliphatic monocarboxylic acid having 2 or more carbons and a monoalcohol having 1 to 5 carbons, an aliphatic ketone having 3 or more carbons, an aliphatic alcohol having 4 or more carbons, or a halogenated hydrocarbon, or ...

Additives For Low-Sulfur Marine Diesel

This invention relates to a fuel oil composition, containing a low-sulfur marine diesel having a sulfur content of less than 1 wt. % and (A) at least one ethylene copolymer and (B) at least one comb polymer. 1. A fuel oil composition comprising a low-sulfur marine diesel having a sulfur content of less than 1% by weight and(A) at least one ethylene copolymer and(B) at least one comb polymer.2. The fuel oil composition as claimed in claim 1 , in which the untreated low-sulfur marine diesel has a pour point of +6° C. or higher.3. The fuel oil composition as claimed in and/or claim 1 , in which the low-sulfur marine diesel has a viscosity of not more than 200 mm/s at 40° C.4. The fuel oil composition as claimed in and/or claim 1 , in which the low-sulfur marine diesel has a viscosity of not more than 11 mm/s at 40° C.5. The fuel oil composition as claimed in one or more of to claim 1 , in which the low-sulfur marine diesel comprises a residue from the further processing of a mineral oil distillate.6. The fuel oil composition as claimed in one or more of to claim 1 , in which the low-sulfur marine diesel has a sulfur content of 0.1% by weight or lower.7. The fuel oil composition as claimed in one or more of to claim 1 , wherein the residue from the further processing of a mineral oil distillate which is used for production of the low-sulfur marine diesel contains at least 3% by weight of paraffins having more than 24 carbon atoms.8. The fuel oil composition as claimed in one or more of to claim 1 , wherein the residue from the further processing of a mineral oil distillate which is used for production of the low-sulfur marine diesel has a pour point of 9° C. or higher.9. The fuel oil composition as claimed in one or more of to claim 1 , wherein the ethylene copolymer (A) contains claim 1 , as well as ethylene claim 1 , 8.0 to 17 mol % of one or more vinyl and/or (meth)acrylic esters.10. The fuel oil composition as claimed in one or more of to claim 1 , wherein the ...

RELATING TO LUBRICATING COMPOSITIONS

A lubricating oil composition, a method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine, and a use of a lubricant composition to reduce LSPI events in such an engine. Preferably, the composition comprises a detergent comprising an overbased calcium detergent having a total base number (TBN) of at least 150, wherein the lubricating oil composition has a calcium content of at least 0.08 wt. %, based on the weight of the lubricating oil composition, and wherein the lubricating oil composition has a silicon content of at least 12 ppm by weight, based on the weight of the lubricating oil composition. 1. A lubricating oil composition comprising a base oil of lubricating viscosity , a calcium containing detergent , and a silicon containing additive , wherein calcium containing detergent provides the lubricating oil composition with a calcium content of at least 0.08 wt. % , based on the weight of the lubricating oil composition , and wherein the silicon containing additive provides the lubricating oil composition with a silicon content of at least 12 ppm by weight , based on the weight of the lubricating oil composition.2. A lubricating oil composition according to claim 1 , wherein the lubricating oil composition has a silicon content of at least 15 ppm by weight claim 1 , based on the weight of the lubricating oil composition.3. A lubricating oil composition according to claim 1 , wherein the lubricating oil composition has a silicon content of from 12 to 2000 ppm claim 1 , by weight claim 1 , based on the weight of the lubricating oil composition.4. A lubricating oil composition according to claim 1 , wherein the lubricating oil composition comprises one or more silicon-containing compounds selected form the group consisting of siloxane compounds claim 1 , organo modified siloxane compounds claim 1 , small molecule silicon compounds claim 1 , and silazane compounds.7. A lubricating oil composition according to ...

LUBRICATING OIL COMPOSITIONS CONTAINING PRE-CERAMIC POLYMERS

A lubricating composition comprises an oil of lubricating viscosity, a metal-free pre-ceramic polymer and one or more co-additives. The metal-free pre-ceramic polymer comprises a plurality of repeat units which do not contain oxygen. The pre-ceramic polymers provide the lubricating oil composition with antiwear properties. Also described is a method of lubricating an internal combustion engine and the use of a lubricating oil composition containing a pre-ceramic polymers to inhibit wear in an internal combustion engine. 1. A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and a minor amount of a metal-free pre-ceramic polymer , wherein the pre-ceramic polymer comprises a plurality of repeat units which do not contain oxygen , and wherein the lubricating oil composition further comprises one or more co-additives.2. A lubricating oil composition according to wherein the metal-free pro-ceramic polymer comprises a silicon-containing pre-ceramic polymer.3. A lubricating oil composition according to wherein the metal-free pre-ceramic polymer comprises a polysilazane claim 2 , a polyborosilane claim 2 , a polycarbosilane claim 2 , a polyborosilazane claim 2 , a polysilylcarbodiimide claim 2 , or a mixture thereof.5. A lubricating oil composition according to wherein R claim 4 , R claim 4 , R claim 4 , R claim 4 , R claim 4 , R claim 4 , Rand Rare independently linear claim 4 , branched or cyclic alkyl or alkenyl groups claim 4 , or aryl groups containing 1 to 30 carbon atoms.6. A lubricating oil composition according to wherein the metal-free pre-ceramic polymer contains a repeat unit of formula (I) and where X is NH or NR.7. A lubricating oil composition according to wherein metal-free pre-ceramic polymer consists of units of formulae (I) to (IV).8. A lubricating oil composition according to wherein the metal-free pre-ceramic polymer includes additional units or groups.9. A lubricating oil composition according to wherein the metal ...

LUBRICANT FOR CONVEYING CONTAINERS

The passage of a container along a conveyor is lubricated by applying to the container or conveyor a lubricant composition comprising a water-miscible silicone material having a silicone emulsion wherein the silicone emulsion contains less than 500 ppm of a triethanolamine salts of alkyl benzene sulfonic acid compounds. 1. A method for lubricating the passage of a container along a conveyor comprising applying a lubricant composition through non-energized nozzles to at least a portion of the container-contacting surface of the conveyor or at least a portion of the conveyor-contacting surface of the container , the lubricant composition comprising a silicone emulsion , wherein the lubricant composition contains less than about 500 ppm of triethanolamine salts of alkyl benzene sulfonic acid compounds.2. The method of claim 1 , wherein the silicone emulsion includes emulsifiers other than triethanolamine salts of alkyl benzene sulfonic acid compounds.3. The method of claim 1 , wherein the silicone emulsion includes emulsifiers selected from the group of linear alkyl phenol ethoxylates claim 1 , branched alkyl phenol ethoxylates claim 1 , linear primary alcohol ethoxylates claim 1 , branched primary alcohol ethoxylates claim 1 , linear secondary alcohol ethoxylates claim 1 , branched secondary alcohol ethoxylates claim 1 , poly alkylene oxide modified polydimethylsiloxanes claim 1 , sorbitan derivatives claim 1 , sodium alkyl aryl polyether sulfonate compounds claim 1 , sodium alkyl aryl sulfonate compounds trimethyl ammonium salts claim 1 , and mixtures thereof.4. The method of claim 1 , wherein the silicone emulsion is selected from the group of Lambent Technologies E2175 emulsion claim 1 , Lambent Technologies E2140 emulsion claim 1 , Lambent Technologies E2140FG emulsion claim 1 , Dow Corning HV600 emulsion claim 1 , Dow Corning 1664 claim 1 , Dow Corning 1101 emulsion claim 1 , Dow Corning 346 emulsion claim 1 , General Electric SM 2068A emulsion claim 1 , General ...

METHOD FOR IMPROVING LUBRICANT ANTIFOAMING PERFORMANCE AND FILTERABILITY

A method for improving filterability, while maintaining or improving antifoaming performance, of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil a formulated oil. A method for improving antifoaming performance, while maintaining or improving filterability, of a lubricating oil in an engine or other mechanical component lubricated with the lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and at least one antifoam agent, as a minor component. A lubricating oil having a composition including a lubricating oil base stock as a major component, and at least one antifoam agent, as a minor component. The antifoam agent is a silicone composition having a highly branched functionalized silicone backbone. The lubricating oils are useful as automotive gear lubricating compositions. 2. The method of wherein Rand Rare both methyl groups.3. The method of wherein m is an integer between about 10 to about 14.4110. The method of wherein x is an integer in the range between about 6 to about .5. The method of wherein said compound derived from said partially esterified ester residue is a partially esterified alcohol.7. The method of wherein said functional alcohol is selected from the group consisting of: ethylene glycol claim 6 , propylene glycol claim 6 , butylene glycol claim 6 , polyethylene glycol claim 6 , neopentyl glycol claim 6 , polypropylene glycol claim 6 , glycerin claim 6 , trimethylolethane claim 6 , trimethylolpropane claim 6 , pentaerythritol claim 6 , di-pentaerythritol claim 6 , tri-pentaerythritol claim 6 , and a mixture thereof.8. The method of wherein said compound derived from said partially esterified ester residue is a partially esterified acid.9. The method of wherein said mono-hydroxy-terminated partially esterified acid is derived from di- claim 8 , tri- or tetra- ...

LUBRICATING COMPOSITION

The present invention provides the use of a lubricating composition for improving anti-foaming properties, in particular as determined according to ASTM D892, wherein the lubricating composition comprises (i) a base oil comprising Fischer-Tropsch derived base oil and (ii) from 0.0001 to 10 wt % of an anti-foam agent. 1. Use of a lubricating composition for improving anti-foaming properties , in particular as determined according to ASTM D892 , wherein the lubricating composition comprises (i) a base oil comprising a Fischer-Tropsch derived base oil and (ii) from 0.0001 to 10 wt % of an anti-foam agent.2. Use according to wherein the anti-foam agent is selected from silicone anti-foam agents claim 1 , non-silicone anti-foam agents and mixtures thereof.3. Use according to wherein the silicone anti-foam agents are selected from silicone oils.4. Use according to wherein the silicone oils are selected from polyalkylsiloxanes (e.g. claim 3 , polydimethylsiloxane) claim 3 , polyarylsiloxanes claim 3 , polyalkoxysiloxanes claim 3 , polyaryloxysiloxanes claim 3 , fluorinated polysiloxanes (e.g. claim 3 , trifluoropropylmethylsilicone) claim 3 , and mixtures thereof.5. Use according to claim 1 , wherein the anti-foam agent comprises silica particulates.6. Use according to wherein the non-silicone anti-foam agents are selected from polymethacrylates.7. Use according to wherein the Fischer-Tropsch derived base oil has a kinematic viscosity at 100° C. of from 1 mm/s to 35 mm/s.8. Use according to wherein the base oil comprises more than 50 wt % claim 1 , preferably more than 60 wt % claim 1 , more preferably more than 70 wt % claim 1 , even more preferably more than 80 wt % claim 1 , most preferably more than 90 wt % of Fischer-Tropsch derived base oil.9. Method for improving anti-foaming properties of a lubricating composition claim 1 , in particular as determined according to ASTM D892 claim 1 , wherein the method comprises providing a lubricating composition which comprises ( ...

SILICONE MODIFIED LUBRICANT

A silicone modified lubricant includes a Group I, II, III, IV or V base oil in combination with a minor amount of a silicone oil. Further, the lubricant includes a dispersant such as a dispersant olefin copolymer which maintains the silicone oil dispersed in the base oil. The silicone oil reduces the surface tension of the lubricant thereby reducing power loss. Preferably the lubricant formation has a surface tension less than 28 mN/m, making it particularly suitable for dip lubrication systems. 1. A lubricant formulation comprising:a base oil selected from a Group consisting of Group I, Group II and Group III and Group IV base oil and combinations thereof;01 to 5% silicone oil; anda dispersant olefin copolymer in an amount effective to maintain said silicone oil dispersed in said base oil, wherein said olefin copolymer is soluble in said base oil.2. The lubricant claimed in wherein said dispersant olefin copolymer is an ethylene propylene copolymer.3. The lubricant formulation claimed in claim 2 , wherein said dispersant olefin copolymer has an ethylene propylene ratio of 55/45 -45/55.4. The lubricant formulation claimed in claim 1 , wherein said dispersant olefin copolymer is an ethylene propylene diene terpolymer.5. The lubricant formulation claimed in claim 1 , having 0.02 to 0.5% silicone oil.6. The lubricant formulation claimed in claim 1 , having 0.1 to 10% olefin copolymer.7. The lubricant formulation claimed in claim 1 , wherein said base oil is a Group III base oil.8. The lubricant formulation claimed in claim 1 , comprising 40-95% PAO.9. The lubricant formulation claimed in claim 1 , comprising 0.01 to 15% nanographite particles.10. The lubricant formulation claimed in claim 1 , wherein said base oil includes at least 40% of a Group III or Group IV base oil.11. The lubricant formulation claimed in claim 5 , comprising 40 to 95% by weight of said base oil.12. The lubricant formulation claimed in claim 1 , having a surface tension less than 28 mN/m.13. The ...

DEFOAMING AGENT AND LUBRICATING OIL COMPOSITION

A defoaming agent obtainable by a process, the process including the step of: (i) polymerizing (B) at least one defoaming agent monomer in (A) a polymerization solvent under coexistence of (C) a polymer soluble in the polymerization solvent. 1. A defoaming agent obtainable by a process , the process comprising:(i) polymerizing (B) at least one defoaming agent monomer in (A) a polymerization solvent under coexistence of (C) a polymer soluble in the polymerization solvent.3. The defoaming agent according to claim 1 ,wherein the polymerizing is carried out by dispersion polymerization; and the (C) polymer soluble in the polymerization solvent is (C1) a polymer dispersant.4. The defoaming agent according to claim 3 ,the (A) polymerization solvent comprising a hydrocarbon solvent having 6 or more carbons, a mineral oil, a synthetic oil, or an ester oil, or combination thereof.5. The defoaming agent according to claim 3 ,the (C1) polymer dispersant comprising a polyalkyl (meth)acrylate having a weight average molecular weight of 10,000 to 1,000,000.6. The defoaming agent according to claim 1 ,wherein the polymerizing is carried out by solution polymerization.7. The defoaming agent according to claim 6 ,the (C) polymer soluble in the polymerization solvent comprising a polyalkyl (meth)acrylate having a weight average molecular weight of 10,000 to 1,000,000.8. A lubricating oil composition comprising:a lubricant base oil; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the defoaming agent as in .'} The present invention relates to defoaming agents, and lubricating oil compositions containing the defoaming agents.Lubricating oil is used in various kinds of machinery so as to improve lubricity between members. Increase of foaming of the lubricating oil may lead to insufficient lubrication, failure to control hydraulic pressure, deteriorated cooling efficiency, and so on. Thus, lubricating oil is required to suppress foaming.For example, automobile engines, transmissions ...

POLYMERIC-INORGANIC PARTICLES USEFUL AS LUBRICANT ADDITIVES

The invention relates to polymeric-inorganic nanoparticles and preparation processes thereof. The invention also relates to a powder, concentrate and lubricating composition comprising these polymeric-inorganic nanoparticles, to a method of dispersing nanoparticles in lubricating oil, as well as the use of these polymeric-inorganic particles in an oil lubricant formulation to reduce pour point, friction and wear. 2. The polymeric-inorganic nanoparticle according to claim 1 , wherein the compound of formula (I) is selected from the group consisting of 3-(triethoxysilyl)propyl methacrylate claim 1 , 3-(trimethoxysilyl)propyl methacrylate claim 1 , and 3-(trichlorosilyl)propyl methacrylate.3. The polymeric-inorganic nanoparticle according to claim 1 , wherein each polymer consists of the units a) and the units b).4. The polymeric-inorganic nanoparticle according to wherein the at least one polymer further comprises comonomer units.5. The polymeric-inorganic nanoparticle according to claim 1 , wherein the inorganic nanoparticle is selected from the group consisting of a metal oxide nanoparticle claim 1 , an oxidized metal nitride nanoparticle claim 1 , an oxidized metal carbide nanoparticle claim 1 , a non-metal oxide nanoparticle claim 1 , and mixtures thereof.6. The polymeric-inorganic nanoparticle according to claim 1 , wherein the inorganic nanoparticle is selected from the group consisting of SiOand TiO.8. The polymeric-inorganic nanoparticle according to claim 1 , wherein each polymer comprises 0.1% by weight to 50% by weight of the units a) claim 1 , based on the total weight of the monomer composition.10. The polymeric-inorganic nanoparticle according to claim 7 , wherein each polymer comprises at least 50% by weight of either monomer units b2) or b3) or a mixture of both claim 7 , based on the total weight of the monomer composition.11. The polymeric-inorganic nanoparticle according to claim 10 , wherein the units derived from one or more alkyl (meth)acrylate ...

METHODS FOR PROCESSING NITROGEN RICH RENEWABLE FEEDSTOCKS

Processes for producing a fuel from a renewable feedstock which may have more than 60 ppm nitrogen. The renewable feedstock is passed to a deoxygenation zone. A hydrogen stream, preferably formed from a recycled gas, is introduced into the deoxygenation zone at a relatively high rate. The hydrogen introduction may be between 3 to 5 times the rate of hydrogen consumption in the deoxygenation zone. The hydrogen introduction may also be between 6000 to 9000 SCF/BBL. A deoxygenated effluent, comprising less than 1 wppm nitrogen, may be isomerized and separated into one or more product hydrocarbon streams such as a diesel fuel or aviation fuel. 1. A process for converting a renewable feedstock into a fuel , the process comprising:deoxygenating a renewable feedstock in the presence of hydrogen in a deoxygenation zone comprising a catalyst and being operated under conditions to provide a deoxygenated effluent;introducing hydrogen to the deoxygenation zone at a rate of between 6000 to 9000 SCF/BBL; and,isomerizing the deoxygenated effluent in an isomerization zone comprising a catalyst and being operated under conditions to improve at least one cold flow property of the deoxygenated effluent in an isomerized effluent.2. The process of wherein the deoxygenated effluent comprises less than 1 wppm of nitrogen.3. The process of wherein the deoxygenated effluent comprises less than 100 wppb of nitrogen.4. The process of wherein the rate of hydrogen introduction is between 7000 to 8000 SCF/BBL.5. The process of wherein the deoxygenation zone and the isomerization zone are contained within different reactors.6. The process of wherein the renewable feedstock comprises >60 ppm nitrogen.7. The process of wherein the renewable feedstock comprises >100 ppm nitrogen.8. The process of wherein the rate of hydrogen introduction is between approximately three to five times a rate of hydrogen consumption in the deoxygenation zone.9. The process of wherein the hydrogen introduced into the ...

Lubricant Coating and Medical Injection Device Comprising Such a Coating

The invention relates to a lubricant coating ( 5 ) for a medical injection device ( 1 ), comprising successively: —a bottom layer ( 50 ) in contact with the medical device surface ( 21 ) of the container to be lubricated, comprising a mixture of cross-linked and non-cross-linked poly-(dimethylsiloxane), —an intermediate layer ( 51 ) consisting essentially of oxidized poly-(dimethylsiloxane) and having a thickness comprised between 10 and 30 nm and, —a top layer ( 52 ) consisting essentially of non-cross-linked poly-(dimethylsiloxane) and having a thickness of at most 2 nm. The invention also relates to a medical injection device comprising such a lubricant coating, and a manufacturing process for said coating.

TRACTION FLUID COMPOSITION

raction fluid additive combination that is usable with any traction fluids base stock is provided. To optimize the traction, low temperature viscosity and shear stability performance, a combination of a polyisobutene and a polymethacrylate may be added to a base oil to obtain a traction fluid with good low temperature viscosity without degrading the shear strength properties of the fluid. To minimize foaming of the traction fluid, a combination of one, two, or more anti-foaming agents may be added to the fluid in addition to a standard additive package. 1. A traction fluid comprising:a base oil;a first viscosity additive comprising a polyisobutene; anda second viscosity additive comprising a polymethacrylate.2. The traction fluid of claim 1 , further comprising at least one anti-foaming agent.3. The traction fluid of claim 2 , the anti-foaming agent present in an amount greater than about 0.01 (w/w) % and less than about 1 (w/w) %.4. The traction fluid of claim 3 , the anti-foaming agent present in an amount of about 0.1 (w/w) %.5. The traction fluid of claim 3 , the anti-foaming agent selected from the group consisting of: a mixture of organic acid ester and siloxane or a silicone based fluid.6. The traction fluid of claim 1 , further comprising at least one additional additive.7. The traction fluid of claim 6 , the at least one additional additive present in an amount greater than about 0.01 (w/w) % and less than about 20 (w/w) %.8. The traction fluid of claim 7 , the at least one additional additive present in an amount of between about 3 (w/w) % and about 6 (w/w) %.9. The traction fluid of claim 1 , the traction fluid characterized by a Brookfield viscosity at −30° C. below about 36 claim 1 ,000 cP.10. The traction fluid of claim 9 , the traction fluid characterized by a Brookfield viscosity at −30° C. below about 32 claim 9 ,000 cP.11. The traction fluid of claim 1 , the base oil present in an amount greater than about 83 (w/w) % and less than about 98 (w/w) %. ...

Intrinsic Low Friction Polyoxymethylene

A tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer and at least one tribological modifier. The tribological modifier may comprise at least one tribological modifier comprising an ultra-high molecular weight silicone having a kinematic viscosity of greater than 100,000 mms. The composition may exhibit a dynamic coefficient of friction against a counter-material of from about 0.01 to about 0.15. The polyoxymethylene polymer compositions provide polymer articles with improved tribological properties and mechanical properties. 126.-. (canceled)27. A polyoxymethylene polymer composition , the polyoxymethylene polymer composition comprising;a polyoxymethylene copolymer having a melt flow index of less than about 50 g/10 min, and{'sup': 2', '−1, 'first tribological modifier comprising an ultra-high molecular weight silicone having a kinematic viscosity at 40° C. of greater than 100,000 mms, the ultra-high molecular weight silicone being present in the polymer composition in an amount from about 0.1 to about 10% by weight; and'}{'sup': 2', '−1', '2', '−1, 'a second tribological modifier comprising polytetrafluoroethylene particles, ultra-high molecular weight polyethylene, or a silicone oil having an average molecular weight of at least 5,000 g/mol and less than 75,000 g/mol and having a kinematic viscosity at 40° C. of greater than 100 mmsand less than 15,000 mms, or mixtures thereof.'}28. The polymer composition of claim 27 , wherein the second tribological modifier comprises the silicone oil.29. The polyoxymethylene polymer composition as defined in claim 27 , wherein the second tribological modifier comprises the polytetrafluoroethylene particles claim 27 , the polytetrafluoroethylene particles being present in the polymer composition in an amount from about 0.1 to about 50% by weight.30. The polyoxymethylene polymer composition as defined in claim 27 , wherein ...

AQUEOUS POLYMER DISPERSIONS, A METHOD FOR THEIR PREPARATION AND THE USE THEREOF AS POUR-POINT DEPRESSANTS FOR CRUDE OIL, PETROLEUM, AND PETROLEUM PRODUCTS

The invention relates to aqueous polymer dispersions comprising at least one polymer obtainable by the reaction of at least one monomer M1 of the general formula (I): HC═CH—C(O)OR, wherein R is an unbranched alkyl chain comprising from 18 to 22 carbon atoms, and optionally at least one monomer M2. The invention relates moreover to a method for the preparing of such aqueous polymer dispersion and the use thereof as pour point depressant for crude oil, petroleum, and petroleum products.

STABLE ANTIFOAMING COMPOSITIONS

A stabilized antifoaming composition having at least three components. The first component is an antifoaming agent. The second component is an ethylene-(meth)acrylic acid copolymer. The third component is a salt. 1. A stabilized antifoaming composition , said composition comprising: (a) an antifoaming agent; (b) an ethylene-(meth)acrylic acid copolymer; and (c) a salt.2. The composition of in which a weight ratio of ethylene-(meth)acrylic acid copolymer to antifoaming agent is from 0.5:1 to 6:13. The composition of in which the antifoaming agent is a siloxane or a copolymer of ethylene oxide and propylene oxide.4. The composition of in which the ethylene-(meth)acrylic acid copolymer comprises from 50 to 90 wt % ethylene and 10 to 50 wt % (meth)acrylic acid.5. The composition of in which from 50 to 100 mole % of the (meth)acrylic acid is neutralized.6. The composition of comprising from 0.5 to 6 wt % of surfactants.7. The composition of comprising from 0.05 to 3 wt % antifoaming agent and from 0.2 to 12 wt % ethylene-(meth)acrylic acid copolymer.8. The composition of comprising from 79 to 95 wt % water and from 1 to 6 wt % salts.9. The composition of in which the copolymer comprises ethylene and acrylic acid. This invention relates to antifoaming compositions which are stable when dispersed in aqueous media.U.S. Pat. No. 6,569,924 describes solubilizing agents for antifoaming compositions. These solubilizing agents are alkoxylated compounds. However, this reference does not describe how to form stable antifoaming compositions.The present invention provides a stabilized antifoaming composition, said composition comprising: (a) an antifoaming agent; (b) an ethylene-(meth)acrylic acid copolymer; and (c) a salt.Percentages are weight percentages (wt %) and temperatures are in ° C., unless specified otherwise. Operations were performed at room temperature (20-25° C.), unless specified otherwise. Weight percentages of components are based on weights of active ingredients, ...

Lubricant Coating and Medical Injection Device Comprising Such a Coating

The invention relates to a lubricant coating () for a medical injection device (), comprising successively: —a bottom layer () in contact with the medical device surface () of the container to be lubricated, comprising a mixture of cross-linked and non-cross-linked poly-(dimethylsiloxane), —an intermediate layer () consisting essentially of oxidized poly-(dimethylsiloxane) and having a thickness comprised between 10 and 30 nm and, —a top layer () consisting essentially of non-cross-linked poly-(dimethylsiloxane) and having a thickness of at most 2 nm. The invention also relates to a medical injection device comprising such a lubricant coating, and a manufacturing process for said coating. 1. A medical injection device , comprising:a barrel comprising a proximal end, a distal end, a sidewall therebetween defining a reservoir, and a stopper in gliding engagement within the barrel, the sidewall having an inner surface facing the reservoir and at least partially covered by a lubricant-coating, a bottom layer in contact with the inner surface of the sidewall of the barrel, comprising a mixture of cross-linked and non-cross-linked poly-(dimethylsiloxane);', 'an intermediate layer consisting essentially of oxidized poly-(dimethylsiloxane); and', 'a top layer consisting essentially of non-cross-linked poly-(dimethylsiloxane)., 'wherein the lubricant coating comprises2. The medical injection device according to claim 1 , wherein the barrel is made of plastic.3. The medical injection device according to claim 1 , wherein the barrel is made of glass.4. The medical injection device according to claim 1 , wherein the barrel has an internal volume of 1 ml and a diameter of 6.35 mm.5. The medical injection device according to claim 4 , wherein a weight of the lubricant coating is in a range of 0.1 mg to 0.4 mg.6. The medical injection device according to claim 1 , wherein a particle level generated inside the device when filled with a solution of a mixture of 10 g/L of Phosphate ...

LUBRICANT COMPOSITIONS COMPRISING CORE-SHELL NANOPARTICLES

Lubricant compositions, core-shell nanoparticles, and related methods are disclosed. In an exemplary embodiment, a lubricant composition includes a plurality of core-shell nanoparticles. The nanoparticles include a core, a first shell disposed on the core, and a second shell disposed on the first shell. The first shell is formed from a siliceous material and the second shell is formed from a hydrophobic material. The first and second shells form functional coatings that reduce wear and friction of parts lubricated with the lubricant composition. 2. The nanoparticle of claim 1 , wherein the first shell is conformally coated onto the core and the second shell is conformally coated onto the first shell.3. The nanoparticle of claim 1 , wherein the core is formed from a shearable material.4. The nanoparticle of claim 1 , wherein the core is formed from a fluorinated organic polymer.5. The nanoparticle of claim 4 , wherein the core is formed from polytetrafluoroethylene (PTFE).6. The nanoparticle of claim 5 , wherein the PTFE is carboxylated.7. The nanoparticle of claim 1 , wherein the core has a length of 10-500 nm in three dimensions.8. The nanoparticle of claim 1 , wherein the first shell comprises a plurality of layers differing in chemical composition.9. The nanoparticle of claim 1 , wherein a degree of crosslinking and/or a molecular weight of the siliceous material of the first shell varies in a radial direction of the nanoparticle.10. The nanoparticle of claim 1 , wherein the first shell has an average thickness of 1-20 nm.11. The nanoparticle of claim 1 , wherein the second shell has an average thickness of 1-20 nm.12. The nanoparticle of claim 1 , wherein the hydrophobic material of the second shell is an organic polymer.13. The nanoparticle of claim 12 , wherein the organic polymer comprises a poly(meth)acrylate claim 12 , a polyketone claim 12 , a polyaldehyde claim 12 , a polyvinyl claim 12 , a polyalkylene claim 12 , or a mixture thereof.14. The nanoparticle ...

LUBRICANT COMPOSITION CONTAINING ORGANOMODIFIED SILOXANES

The present invention relates to compositions comprising components AA which are obtainable by hydrosilylation reaction of organomodified siloxanes bearing Si—H— groups and/or terminally unsaturated organic groups, a preparation process thereof and use thereof as lubricants. 18-. (canceled)9. A method of reducing the friction and/or traction coefficient comprising [ {'br': None, 'sub': a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'l, 'sup': H', 'V', 'H', 'V', 'H, 'MMMDDDTTQ\u2003\u2003(I),'}, 'wherein the at least one organomodified siloxane A of general fortnula (I) comprises, 'wherein', {'sup': '1', 'sub': 3', '1/2, 'M is a building block [RSiO],'}, {'sup': H', '1', '2, 'sub': 2', '1/2, 'Mis a building block [RRSiO],'}, {'sup': V', '1', '2, 'sub': 2', '1/2, 'Mis a building block [RRSiO],'}, {'sup': '1', 'sub': 2', '2/2, 'D is a building block [RSiO],'}, {'sup': H', '1', '2, 'sub': '2/2', 'Dis a building block [RRSiO],'}, {'sup': V', '1', '3, 'sub': 2', '2,2, 'Dis a building block [RRSiO],'}, {'sup': '1', 'sub': '3/2', 'T is a building block [RSiO],'}, {'sup': H', '2, 'sub': '3/2', 'Tis a building block [RSiO],'}, {'sub': '4/2', 'Q is a building block [SiO],'}, {'sup': '1', 'Ris independently of one another, identical or different and is at least one selected from the group consisting of alkyl radicals having from 1 to 18 carbon atoms and phenyl group,'}, {'sup': '2', 'Ris hydrogen,'}, {'sup': '3', 'Ris independently of one another and identical or different organic radicals with a terminal C—C-double bond or a terminal or internal C—C-triple bond,'}, 'a is an even or uneven, positive number 0 to 80,', 'b is an even or uneven, positive number 0 to 80,', 'c is an even or uneven, positive number 0 to 80,', 'd is an even or uneven, positive number 10 to 1200,', 'e is a number 0 to 100,', 'f is a number 0 to 100,', 'g is an even or uneven, positive number 0 to 30,', 'h is an even or uneven, positive number 0 to 20,', 'l is an even or uneven, positive number 0 to 20,', 'with ...

DEFOAMING AGENT AND LUBRICATING OIL COMPOSITION

A defoaming agent including a polymer, the polymer including: at least one first polymer chain including a polysiloxane structure represented by the following general formula (1); and at least one second polymer chain including a repeating unit represented by the following general formula (2) and bonded to the first polymer chain: 2. The defoaming agent according to claim 1 ,{'sup': '1', 'wherein Xis a repeating unit obtainable by polymerization of (meth)acryloyl group.'}3. The defoaming agent according to claim 1 ,wherein the at least one second polymer chain is bonded to one end or both ends of the first polymer chain.5. The defoaming agent according to claim 4 ,{'sup': 2', '3', '4, 'wherein X, Xand Xare repeating units obtainable by polymerization of (meth)acryloyl group.'}6. The defoaming agent according to claim 1 ,wherein the at least one second polymer chain is bonded to only one end of the first polymer chain.7. The defoaming agent according to claim 1 ,wherein the at least one second polymer chain is bonded to both ends of at least one of the first polymer chain.8. The defoaming agent according to claim 1 ,wherein a ratio of a total number of polysiloxane repeating units comprising fluorine atoms to a total number of all polysiloxane repeating units is 0.01 to 1.9. The defoaming agent according to claim 1 ,wherein a content of the first polymer chain is 0.5 to 80 mass % on the basis of the total mass of the polymer.10. The defoaming agent according to claim 1 ,wherein the polymer has a weight average molecular weight of 10,000 to 1,000,000.11. The defoaming agent according to claim 1 ,wherein the first polymer chain has a weight average molecular weight of 500 to 500,000.13. The defoaming agent according to claim 12 ,wherein in the first component, a ratio of a total number of polysiloxane repeating units comprising fluorine atoms to a total number of all polysiloxane repeating units is 0.01 to 1.14. The defoaming agent according to claim 12 ,wherein an ...

Alternating block copolymer and process for making

Provided is an alternating block copolymer. The alternating block copolymer has an olefin polymer block and an poly(alkyl methacrylate) block. The olefin polymer block has monomeric units of one or more alpha olefins of 2 to 12 carbon atoms that make up 90 wt% or more of the total weight of the olefin polymer block. The olefin polymer block exhibits a number average molecular weight of the olefin polymer block is 1000 to 500,000. The poly( alkyl methacrylate) block has monomeric units of one or more alkyl methacrylates with alkyl side chains of 1 to 100 carbon atoms that make up 90 wt% or more of the total weight of the poly(alkyl methacrylate) block. The poly(alkyl methacrylate) block exhibits a number average molecular weight of 1000 to 500,000. There is also provided a lubricant composition containing the alternating block copolymer and a process for making the alternating block copolymer.

Polymeric additives

PCT No. PCT/EP92/00406 Sec. 371 Date Aug. 27, 1993 Sec. 102(e) Date Aug. 27, 1993 PCT Filed Nov. 4, 1993 PCT Pub. No. WO92/15623 PCT Pub. Date Sep. 17, 1992.There are disclosed middle distillate fuel oil compositions containing an additive being a copolymer of Mn 200-50,000 having a polymethylene backbone which may be O or N substituted and having nitrate, peroxide, nitrite or nitrosocarbonate side chains.

Defoaming agent and lubricating oil composition

Composition having improved filterability

FIELD: chemistry. SUBSTANCE: invention relates to a liquid fuel composition which includes biodiesel fuel and at least one additive for improving filterability, wherein the additive is at least two polyalkyl(meth)acrylate polymers, one of which contains recurrent fragments obtained from alkyl(meth)acrylates having 16-40 carbon atoms in the alkyl residue, and the other contains recurrent fragments obtained from hydroxyl-containing monomers and/or (meth)acrylates of ether alcohols. EFFECT: invention describes a method of improving filterability of liquid fuel containing biodiesel and use of a polyalkyl(meth)acrylate polymer to improve filterability of liquid fuel containing biodiesel. 13 cl, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 564 030 C2 (51) МПК C10L 1/196 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012137684/04, 15.12.2010 (24) Дата начала отсчета срока действия патента: 15.12.2010 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.03.2014 Бюл. № 7 (45) Опубликовано: 27.09.2015 Бюл. № 27 (73) Патентообладатель(и): ЭВОНИК РОМАКС ЭДДИТИВС ГМБХ (DE) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 05.09.2012 2 5 6 4 0 3 0 (56) Список документов, цитированных в отчете о поиске: WO 2010/005947 A2 14.01.2010. WO 2009/077396 A1 25.06.2009. WO 2007/113035 A1 11.10.2007. WO 99/27037 A1 03.06.1999. SU 349188 A3 23.08.1972. RU 2114156 C1 27.06.1998. SU 1055154 A1 15.10.1992 R U 05.02.2010 US 12/700,948 (72) Автор(ы): ХЕСС Брайан (US), САЙБЕРТ Роберт (US), МАЛИТСКИ Мэри А (US), МЭЛИНГ Франк-Олаф (DE), КОШАБЕК Рене (DE), СОНДЯЯ Ронни (DE) EP 2010/069684 (15.12.2010) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 5 6 4 0 3 0 WO 2011/095249 (11.08.2011) Адрес для переписки: 105064, Москва, а/я 88, "Патентные поверенные Квашнин, Сапельников и партнеры" (54) КОМПОЗИЦИЯ С УЛУЧШЕННОЙ ФИЛЬТРУЕМОСТЬЮ (57) Реферат: Изобретение относится к композиции ...

Graphene oxide/barium titanyl oxalate composite electrorheological liquid and preparation method thereof

本发明公开了一种氧化石墨烯/草酸氧钛钡复合纳米颗粒为介电粒子的电流变液及其制备方法，属于智能材料中的电流变液材料技术领域。其介电粒子分散相即氧化石墨烯/草酸氧钛钡复合颗粒，是用化学沉淀法制备。草酸氧钛钡的厚度为1～5μm，氧化石墨烯层的厚度80～150nm，电流变液中的连续相为聚二甲基硅油。按介电粒子与连续相质量比4:1配制成电流变液，可获得较高的流变特性，即在3kV/mm电场梯度下，电流变液的屈服应力提高3倍，并具有良好的抗沉降性能。

Baiodeungyu's manufacture method for boiler

A method for manufacturing bio-kerosene for a boiler is provided to reduce the consumption of fuel and prevent air pollution, by mixing, stirring, and heating kerosene, bio-oil, and light oil to produce the bio-kerosene. A mixing process is performed by mixing kerosene of 35-45 wt%, bio-oil of 30-35 wt%, and light oil of 20-30 wt%. The kerosene, the bio-oil, and the light oil are inputted in an order of the kerosene, the bio-oil, and the light oil during a mixing process. A heating process is performed by heating a mixed fuel prepared by the mixing process at a temperature of 30-70°C. The bio-oil is one selected from edible refined oil consisting of palm olein, sunflower oil, soybean oil, rapeseed oil, and rice oil.

Graft polymer, method for producing it and lubricant oil composition containing it

FIELD: chemistry. SUBSTANCE: invention refers to a graft copolymer, a method for producing it and to a lubricant oil composition, which contains a graft polymer as an additive. The graft polymer contains polyolefin having an average molecular weight of less than 15,000 and polydispersity from 1.1 to 10, a nitrogen-containing ethylene-unsaturated aliphatic or aromatic grafted monomer having from 2 to approximately 50 carbon atoms, and a metal organic compound specified in molybdenum organic, titanium organic, manganese organic compounds and mixtures thereof. EFFECT: using the grafted polymer of the present invention as an additive to the lubricant oil composition improves the operational anti-wear, oxidation stability and shear stability properties. 14 cl, 5 tbl, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 557 551 C2 (51) МПК C08F 255/00 (2006.01) C10M 155/00 (2006.01) C10M 159/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012139659/04, 01.04.2011 (24) Дата начала отсчета срока действия патента: 01.04.2011 (72) Автор(ы): САУЕР Ричард П. (US) (73) Патентообладатель(и): КАСТРОЛ ЛИМИТЕД (GB) (43) Дата публикации заявки: 20.05.2014 Бюл. № 14 R U Приоритет(ы): (22) Дата подачи заявки: 01.04.2011 (45) Опубликовано: 27.07.2015 Бюл. № 21 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 07.11.2012 (86) Заявка PCT: US 2011/030914 (01.04.2011) 2 5 5 7 5 5 1 (56) Список документов, цитированных в отчете о поиске: US 2006/205611 A1, 14.09.2006. US 2008/ 293600 A1, 27.11.2008. RU 2007144073 A,10.06.2009. RU 2007137648 A,20.04.2009 2 5 5 7 5 5 1 R U WO 2011/126939 (13.10.2011) Адрес для переписки: 119019, Москва, Гоголевский бульвар, 11, этаж 3, "Гоулингз Интернэшнл Инк.", Дементьеву Владимиру Николаевичу (54) ПРИВИТОЙ ПОЛИМЕР, СПОСОБ ЕГО ПОЛУЧЕНИЯ И СОДЕРЖАЩАЯ ЕГО КОМПОЗИЦИЯ СМАЗОЧНОГО МАСЛА (57) Реферат: Изобретение относится к привитому углерода, и металлоорганическое соединение, сополимеру ...

Olefin-acrylate polymers in refinery and oilfield applications

본 발명은 액체 탄화수소의 왁스 함유 혼합물의 유동점을 낮추는데 유용한 물질, 및 이의 조성물, 및 이를 제조하는 방법에 관한 것이다. 더 구체적으로는, 본 발명은 (i) 히드로카르빌 (메트)아크릴산 유도체 및 (ii) 탄소 원자 수 50개 이하인 에틸렌계 불포화 지방족 Nα-올레핀 단량체로부터 유도된 단위를 함유하는 OLAC 조성물의 액체 탄화수소에서의 용도에 관한 것이다. OLAC 조성물은 액체 탄화수소의 유동성과 유량 특성을 변경하는데 유용하며, 더 구체적으로는 액체 탄화수소의 파이프라인 펌프 능력을 향상시키는데 유용하다. The present invention relates to materials useful for lowering the pour point of wax-containing mixtures of liquid hydrocarbons, and compositions thereof, and methods of making the same. More specifically, the present invention relates to a liquid hydrocarbon of an OLAC composition containing units derived from (i) a hydrocarbyl (meth)acrylic acid derivative and (ii) an ethylenically unsaturated aliphatic Nα-olefin monomer having 50 or less carbon atoms. It relates to the use of. OLAC compositions are useful for modifying the fluidity and flow characteristics of liquid hydrocarbons, and more particularly for improving the pipeline pumping capacity of liquid hydrocarbons.

Method for producing low-sulphur, low pour-point diesel fuel

FIELD: chemistry. SUBSTANCE: invention relates to a method for producing low-sulphur, low pour-point diesel fuel. Hydrotreated diesel fraction with a sulphur content of 0.001 wt % or less, is mixed with hydrogen and directed to a reactor with the top bed of isodewaxing zeolite-based catalyst and the bottom bed of hydrofinishing catalyst. The hydrofinishing catalyst contains as follows, wt %: 6.0-18.0 of nickel (with reference to NiO), 6.0-18.0 of molybdenum (with reference to MoO 3 ) or 6.0-18.0 of tungsten (with reference to WO 3 ) and 0-0.20 of silicone oxide, aluminium oxide - the rest. The volume ratio of isodewaxing catalyst to hydrofinishing catalyst is between 5:1 and 20:1. Isodewaxing and hydrofinishing processes are carried out at a temperature of 300-380°C, pressure of 4.0-5.5 mPa, raw material volumetric flow rate (in relation to the isodewaxing catalyst volume) of 2.0-6.0 h -1 , and hydrogen/raw material ratio of 350:1-700:1 nl/l. Hydrogen-bearing gas is separated, the product of joint isodewaxing/hydrofinishing process is stabilised followed by separation of light hydrocarbons and producing the target product. EFFECT: improved method for producing low-sulphur, low pour-point diesel fuel, resulting in high yield of the target product, containing 8 wt % or less of polycyclic aromatic hydrocarbons. 4 cl, 3 tbl, 10 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 616 003 C1 (51) МПК C10L 10/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2016108519, 10.03.2016 (24) Дата начала отсчета срока действия патента: 10.03.2016 Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 10.03.2016 (73) Патентообладатель(и): Открытое акционерное общество "Нефтяная компания "Роснефть" (RU) (45) Опубликовано: 12.04.2017 Бюл. № 11 (57) Формула изобретения 1. Способ получения низкосернистого низкозастывающего дизельного топлива, включающий изодепарафинизацию гидроочищенной дизельной ...

Method of producing in situ depressant additive in process of pipeline transport with high-paraffin crude oil, treated by anti-turbulent additive

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing a depressor additive in situ in process of pipeline transport of high-paraffin oil. Method of producing a depressant additive in situ involves feeding an anti-turbulent additive (ATA) in the form of a solution in a hydrocarbon solvent through a dosing device into the pumped oil stream. After that oil is pumped through the pump unit for the purpose of ATA destruction. Anti-turbulence additive used is a (co)polymer of a high(meth)acrylate of general formula: where R 1 - hydrogen or methyl, R 2 hydrocarbon group having from 4 to 30 carbon atoms. Molecular weight (co) of polymer is not less than 4⋅10 6 . EFFECT: invention allows to reduce oil hydraulic resistance and to lower the pour point of oil during its transportation. 1 cl, 2 dwg, 1 tbl, 2 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 689 113 C1 (51) МПК F17D 1/16 (2006.01) C10L 1/18 (2006.01) C10L 1/196 (2006.01) C10L 10/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F17D 1/16 (2019.02); C10L 1/1805 (2019.02); C10L 1/196 (2019.02); C10L 10/16 (2019.02) (21)(22) Заявка: 2018107573, 01.03.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 24.05.2019 (45) Опубликовано: 24.05.2019 Бюл. № 15 Адрес для переписки: 117186, Москва, Севастопольский пр-кт, 47А, ООО "НИИ Транснефть" 2137813, C1, 20.09.1999. Данилов А.М. Применение присадок в топливах для автомобилей. Справочник. М.: Химия, 2000, с. 188-190. FR 2982871, A1, 24.05.2013. RU 2124160, C1, 27.12.1998. C 1 2 6 8 9 1 1 3 (56) Список документов, цитированных в отчете о поиске: RU 2279014, C1, 27.06.2006. RU (54) СПОСОБ ПОЛУЧЕНИЯ ДЕПРЕССОРНОЙ ПРИСАДКИ IN SITU В ПРОЦЕССЕ ТРУБОПРОВОДНОГО ТРАНСПОРТА ВЫСОКОПАРАФИНИСТОЙ НЕФТИ, ОБРАБОТАННОЙ ПРОТИВОТУРБУЛЕНТНОЙ ПРИСАДКОЙ (57) Реферат: Изобретение относится к способу получения депрессорной присадки in situ в процессе трубопроводного транспорта высокопарафинистой нефти. ...

A composition for lubricant and a fluid for moving

내용 없음.

THERMOASSOCIATIVE ADDITIVE COMPOSITIONS WHOSE ASSOCIATION IS CONTROLLED AND LUBRICATING COMPOSITIONS CONTAINING THEM

Compositions d'additifs résultant du mélange d'au moins deux composés thermoassociatifs et échangeables et d'au moins un composé ester boronique permettant de contrôler l'association de ces deux copolymères. Composition lubrifiante qui résulte du mélange d'au moins une huile de base lubrifiante, d'au moins deux composés thermoassociatifs et échangeables et d'au moins un composé ester boronique permettant de contrôler l'association de ces deux copolymères. Procédé pour moduler la viscosité d'une composition lubrifiante qui résulte du mélange d'au moins une huile de base lubrifiante, d'au moins deux composés thermoassociatifs et échangeables. Utilisation d'un composé ester boronique pour moduler la viscosité d'une composition lubrifiante. Compositions of additives resulting from the mixture of at least two thermoassociative and exchangeable compounds and of at least one boronic ester compound making it possible to control the association of these two copolymers. Lubricating composition which results from mixing at least one lubricating base oil, at least two thermoassociative and exchangeable compounds and at least one boronic ester compound making it possible to control the association of these two copolymers. Method for modulating the viscosity of a lubricating composition which results from the mixture of at least one lubricating base oil, at least two thermoassociative and exchangeable compounds. Use of a boronic ester compound to modulate the viscosity of a lubricating composition.

Organosilicon hydraulic fluids

DESAERATION OF A LUBRICANT COMPOSITION

La présente invention concerne l’utilisation d’au moins un polyorganosiloxane pour désaérer une composition lubrifiante comprenant au moins une huile de base, lors de la lubrification d’au moins une pièce en mouvement d’un véhicule. The present invention relates to the use of at least one polyorganosiloxane to deaerate a lubricating composition comprising at least one base oil, when lubricating at least one moving part of a vehicle.

Lubricant composition comprising silasesquioxane

The invention relates to a lubricant composition for application onto the surface of drive elements, the lubricant composition containing a base oil and a silasesquioxane. The composition is suitable for preventing, reducing or avoiding fatigue phenomena in the material of drive elements, such as gray staining, false brinelling and white etching cracks.

COMPOSITIONS OF THERMOASSOCIATIVE ADDITIVES WHERE THE ASSOCIATION IS CONTROLLED AND LUBRICATING COMPOSITIONS CONTAINING SAME

Compositions d'additifs résultant du mélange d'au moins deux composés thermoassociatifs et échangeables et d'au moins un composé ester boronique permettant de contrôler l'association de ces deux copolymères. Composition lubrifiante qui résulte du mélange d'au moins une huile de base lubrifiante, d'au moins deux composés thermoassociatifs et échangeables et d'au moins un composé ester boronique permettant de contrôler l'association de ces deux copolymères. Procédé pour moduler la viscosité d'une composition lubrifiante qui résulte du mélange d'au moins une huile de base lubrifiante, d'au moins deux composés thermoassociatifs et échangeables. Utilisation d'un composé ester boronique pour moduler la viscosité d'une composition lubrifiante. Compositions of additives resulting from the mixture of at least two thermoassociative and exchangeable compounds and at least one boronic ester compound making it possible to control the combination of these two copolymers. A lubricating composition which results from mixing at least one lubricating base oil, at least two thermoassociative and exchangeable compounds and at least one boronic ester compound to control the combination of these two copolymers. A method for modulating the viscosity of a lubricating composition which results from mixing at least one lubricating base oil with at least two thermoassociative and exchangeable compounds. Use of a boronic ester compound for modulating the viscosity of a lubricating composition

fuel oil composition comprising a biodiesel oil, method for improving the filterability of said oil, and use of an additive

composição possuindo filtrabilidade melhorada. a presente invenção refere-se auma composição de óleo combustível que compreende pelo menos um óleo biodiesel e pelo menos um aditivo para melhorar a filtrabilidade. alem disso, a presente invenção divulga um método para melhorar a filtrabilidade de um óleo combustível que compreende um biodiesel e um uso de um polímero de (met)acrilato de polialquila para melhorar a filtrabilidade de um óleo combustível que compreende um biodiesel. composition having improved filterability. The present invention relates to a fuel oil composition comprising at least one biodiesel oil and at least one additive to improve filterability. In addition, the present invention discloses a method for improving the filterability of a fuel oil comprising a biodiesel and a use of a polyalkyl (meth) acrylate polymer to improve the filterability of a fuel oil comprising a biodiesel.

Lubricant composition comprising anti-foam agents

The disclosed invention relates to a multigrade lubricant composition which can be used for numerous lubricant applications, but is particularly useful for lubricating a diesel engine. The lubricant composition comprises an oil of lubricating viscosity, a detergent, a dispersant, a viscosity index improver, and a combination of anti-foam agents. The lubricant composition may be used for providing enhanced fuel economy and avoiding air entrainment problems when used in lubricating diesel engines.

Dispersing agent, dispersion and method for adjusting viscosity of dispersion

This dispersing agent is used after being added to a dispersion obtained by dispersing fine particles comprising a crystalline polymer as a dispersoid, and is characterized by containing a copolymer of a first monomer and a second monomer, the first monomer being a monomer that can be crystallized as a polymer having the same molecular structure as the dispersoid.

Thermoassociative additive compositions, the association of which is controlled, and lubricating compositions containing same

The invention concerns additive compositions obtained by mixing at least two thermoassociative and exchangeable compounds and at least one boronic ester compound that enables the association of these two copolymers to be controlled; a lubricating composition obtained by mixing at least one lubricating base oil, at least two thermoassociative and exchangeable compounds, and at least one boronic ester compound that enables the association of these two copolymers to be controlled; a method for adjusting the viscosity of a lubricating composition obtained by mixing at least one lubricating base oil and at least two thermoassociative and exchangeable compounds; and the use of a boronic ester compound to adjust the viscosity of a lubricating composition.

Silicone-based working fluid for fluid coupling

A heat-resistant and oxidation-resistant working fluid for fluid coupling is provided by the invention in which 100 parts by weight of a methyl phenyl polysiloxane containing a relatively minor amount of phenyl groups in the molecules thereof is compounded with 0.01 to 5 parts by weight of an organopolysiloxane having at least one amino-substituted aromatic group, such as 4-(phenylamino)phenyl group, in a molecule thereof.

Lubricating oil compositions containing pre-ceramic polymers

A lubricating composition comprises an oil of lubricating viscosity, a metal-free pre-ceramic polymer and one or more co-additives. The metal-free pre-ceramic polymer comprises a plurality of repeat units which do not contain oxygen. The pre-ceramic polymers provide the lubricating oil composition with antiwear properties. Also described is a method of lubricating an internal combustion engine and the use of a lubricating oil composition containing a pre-ceramic polymers to inhibit wear in an internal combustion engine.

Low-temperature-resistant long-chain hydrocarbon-organic silicon alternating copolymer and preparation method and application thereof

本发明公开了一种长链烃‑有机硅交替共聚物及其制备方法和应用，属于有机硅材料领域，其制备方法，包括：将长链二烯烃单体与硅氢加成催化剂，在惰性气体氛围保护下，均匀混合后，加入含氢有机硅单体，反应，获得长链烃‑有机硅交替共聚物。本发明所提供的长链烃‑有机硅交替共聚物，与液体石蜡和二甲基硅油相比，其玻璃化转变温度在‑100℃以下，具有稳定的耐寒性能，在低温领域可作为润滑油和石蜡油的抗冻剂使用。

Dispersing agent, dispersion, method for adjusting viscosity of dispersion, mobile device, surface treatment agent, electrolyte, separator, and rechargeable lithium ion battery

This dispersing agent is used after being added to a dispersion obtained by dispersing fine particles comprising a crystalline polymer as a dispersoid, and is characterized by containing a copolymer of a first monomer and a second monomer, the first monomer being a monomer that can be crystallized as a polymer having the same molecular structure as the dispersoid.

Silicone antifoam solutions readily dispersible in lubricants

In situ repair of failed mechanical seals

The technique of the instant invention includes the preparation of a new mechanical seal life prolonger (SLP) by the compounding of a relatively few, inexpensive, and readily available materials. The instant technique is simply and easily placed into practice by, for example, applying relatively small amounts of such compound to the outside edges or peripheral portions of the relative movement interface between the seal faces of mechanical seals in association with fluid handling devices while such devices are in an operating mode. Depending on the degree of disruption of the sealing surfaces, a single application of such compound is sometimes sufficient to obtain the desired results or it may be necessary to subsequently apply such compound to the leaking seal at regular intervals subsequent to the first application thereof, until such time as it may be convenient to replace such seal faces.

Palm-based biodiesel foundation

Palm-based biodiesel formulations with enhanced cold flow properties are provided including the following: (I) A biodiesel formulation comprising not more than 40 vol % palm-based biodiesel and not less than 60 vol % petroleum-based fuel oil; (II) A biodiesel formulation comprising not more than 20 wt % palm-based biodiesel and not less than 80 wt % alkyl ester of C 6 -C 18 saturated or unsaturated fatty acid, or a mixture thereof, wherein the alkyl ester is methyl, ethyl, isopropyl, n-butyl, 2-butyl or isobutyl ester, or a mixture thereof; (III) A biodiesel formulation comprising approximately 0.1-1.0% (wt/vol) of a polylkyl methacrylate (PAMA) additive and a palm-based biodiesel blend comprising i) not more than 40 vol % palm-based biodiesel; and ii) not less than 60 vol % petroleum-based fuel oil; (IV) A biodiesel formulation comprising approximately 0.1-5.0% (wt/vol) of a polylkyl methacrylate (PAMA) additive and a palm-based biodiesel having unsaturation level of not less than 60%.

Fluorosilicone lubricants containing nitrophenyl substituted organopolysiloxanes

MINOR AMOUNTS OF NITROPHEYL-SUBSTITUTED SILOXANES ARE ADDED TO FLUOROSILICONE LUBRICANTS TO IMPROVE THE STEEL ON BRASS AND STEEL ON ALUMINUM ANTIWEAR CHARACTERISTICS.

Polymeric additives

An additive comprising an oil-soluble polymer of number average molecular weight in the range of 200 to 50,000, the polymer having or including a polymer backbone carrying a plurality of the same or different functional groups that give rise to cetane improving properties in a fuel oil when the polymer is an additive therefor.

Liquid polysiloxane lubricants

composition of lubricating oil, graft polymer and preparation process

composição de óleo lubrificante, polímero de enxerto e respectivo processo de preparação. a presente invenção refere-se a um polímero de enxerto de: (a) uma polialfaolefina apresentando um peso molecular ponderal médio menor que 15.000 e uma polidispersidade de 1,1 a 10; (b) um monômero nitrogenoso etilenicamente insaturado alifático ou aromático enxertável contendo de 2 a cerca de 50 átomos de carbono; e (c) um composto organo-metálico selecionado a partir de compostos de organomolibdênio, organo-titânio, organomanganês e misturas destes; a um processo para a preparação do polímero e enxerto; e a uma composição de óleo lubrificante compreendem uma maior quantidade de um óleo de base e uma menor quantidade do polímero de enxerto. lubricating oil composition, graft polymer and preparation process thereof. The present invention relates to a graft polymer of: (a) a polyalphaolefin having a weight average molecular weight of less than 15,000 and a polydispersity of 1.1 to 10; (b) a graftable aliphatic or aromatic ethylenically unsaturated nitrogenous monomer containing from 2 to about 50 carbon atoms; and (c) an organo-metal compound selected from organomolbdenum, organo-titanium, organomanganese compounds and mixtures thereof; a process for preparing the polymer and grafting; and a lubricating oil composition comprise a greater amount of a base oil and a smaller amount of the graft polymer.

Pour point depressant for hydrocarbon compositions

Disclosed is a hydrocarbon blend made from 0.001 to 10 wt% of at least one poly-α- olefin, by weight of the blend, the at least one poly-α-olefm having a Kv 100 within the range of from 10 to 3000 cSt and a molecular weight distribution within the range of from 1.0 to 4.5; and a base stock having a Kv 100 below 20.0 cSt; wherein the at least one poly-α-olefin is present in an amount sufficient to lower the pour point of the blend by at least 5°C relative to the pour point of the base stock. The blend is formed by (a) reacting a catalyst composition and a feed containing at least two sets of α-olefins, wherein the first set of α-olefins is selected from C 4 to C 12 α-olefins and the second set of α-olefins is selected from C 14 or larger α-olefins. The α-olefin feed may have a number average carbon number of at least 8 carbon atoms or greater.

lubricant composition

Die Erfindung betrifft eine Schmierstoffzusammensetzung zum Auftragen auf die Oberfläche von Antriebselementen, wobei die Schmierstoffzusammensetzung ein Basisöl und ein Silasesquioxan enthält. Die Zusammensetzung ist geeignet um Ermüdungserscheinungen im Material von Antriebselementen, wie Graufleckenbildung, False Brinelling und White Etching Cracks zu verhindern, zu verringern oder zu vermeiden. The invention relates to a lubricant composition for application to the surface of drive elements, the lubricant composition containing a base oil and a silsesquioxane. The composition is suitable for preventing, reducing or avoiding fatigue in the material of driving elements such as gray pitting, false brinelling and white etching cracking.

Lubricating oil compositions

The present invention generally relates to a method for reducing intake valve deposits in a Direct Injection Spark Ignition engine, the method comprising operating the engine with a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) at least one foam inhibitor selected from the group consisting of silicon oils, polysiloxanes, polyacrylates, and polymethacrylates; wherein the foam inhibitor is not poly (phenyl-methyl) siloxane; and further wherein the amount of said foam inhibitor in said lubricating oil composition is at an effective concentration to achieve at least 10% reduction in intake valve deposits in said Direct Injection Spark Ignition engine compared to operating the engine with said lubricating oil composition without any foam inhibitor.

Defoaming agent and lubricating oil composition

A defoaming agent obtained by polymerization of at least one type of defoaming agent monomer (B) in a polymerization solvent (A), in the presence of a polymer (C) that can be dissolved in the polymerization solvent.

Composition and method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines

Disclosed is a lubricating engine oil composition comprising a lubricating oil base stock as a major component, and at least one metal or metalloid hydrogen atom donor compound. Also disclosed is a method for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine, and the use of at least one metal or metalloid hydrogen atom donor compound in a lubricating engine oil composition for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine.

Composition having improved filterability

The present invention describes a fuel oil composition comprising at least one biodiesel oil and at least one additive for improving the filterability. In addition thereto, the present invention discloses a method for improving the filterability of a fuel oil comprising a biodiesel and a use of a polyalkyl(meth)acrylate polymer to improve the filterability of a fuel oil comprising a biodiesel

Flow improver for biodiesel fuels

(과제) 막힘점 개선 효과나 유동점 개선 효과 등의 저온에서의 안정성 개선 효과를 갖는 바이오 디젤 연료유용 유동성 향상제를 제공하는 것. (해결 수단) 탄소수 10 의 α 올레핀 (A) 와, 탄소수 14∼18 의 α 올레핀 (B) 의 몰비 (A)/(B) 가, (A)/(B) = 10/90∼60/40 인 α 올레핀 혼합물 (C) 를 중합하여 얻어지는 중량 평균 분자량이 5 만∼50 만인 α 올레핀 중합체로 이루어지는 바이오 디젤 연료유용 유동성 향상제. (PROBLEM TO BE SOLVED BY THE INVENTION) Provided is a fluidity improving agent for biodiesel fuel having improved stability at low temperatures such as a clogging point improving effect and a pour point improving effect. (A) / (B) = 10/90 to 60/40, wherein a molar ratio (A) / (B) of an alpha -olefin (A) having a carbon number of 10 to an alpha -olefin And a weight average molecular weight of 50,000 to 500,000 obtained by polymerizing the? -Olefin mixture (C).

Polymeric additives

There are disclosed middle distillate fuel oil compositions containing an additive being a copolymer of Mn 200-50,000 having a polymethylene backbone which may be O or N substituted and having nitrate, peroxide, nitrite or nitrosocarbonate side chains.

Use and method of reducing valve deposits in an engine

The present invention generally relates to a method for reducing intake valve deposits in a Direct Injection Spark Ignition engine, the method comprising operating the engine with a lubricating oil composition comprising: (a) a major amount of an oil of lubricating viscosity; and (b) at least one foam inhibitor selected from the group consisting of silicon oils, polysiloxanes, polyacrylates, and polymethacrylates; wherein the foam inhibitor is not poly (phenyl-methyl) siloxane; and further wherein the amount of said foam inhibitor in said lubricating oil composition is at an effective concentration to achieve at least 10% reduction in intake valve deposits in said Direct Injection Spark Ignition engine compared to operating the engine with said lubricating oil composition without any foam inhibitor.

Lubricant composition comprising anti-foam agents

The disclosed invention relates to a multigrade lubricant composition which can be used for numerous lubricant applications, but is particularly useful for lubricating a diesel engine. The lubricant composition comprises an oil of lubricating viscosity, a detergent, a dispersant, a viscosity index improver, and a combination of anti-foam agents. The lubricant composition may be used for providing enhanced fuel economy and avoiding air entrainment problems when used in lubricating diesel engines.

Boronic ester modified polyalkyl(meth)acrylate polymers

The present invention is directed to boronic ester-modified polyalkyl(meth)acrylate polymers, their use to prepare thermo-associative polymers and method for their preparation.

Antifoam composition

Silicone antifoams

ABSTRACT A durable, effective foam suppressant composition produced through free-radical polymerization of mixtures of polydiorganosiloxanes, silica and a free radical polymerization initiator, and optionally, vinyl monomer(s) and pendant vinyl modified silicone oil, followed by dilution of the resulting reaction product with a low viscosity polysiloxane is disclosed. Also disclosed are methods for its production and use in suppressing foams in liquid mediums.

Copolymers of (meth) acrylic acid esters as flow improvers in oils

Method of reducing the pour-point and improving the flowability of petroleum oil or a fraction thereof by adding thereto a flowability-improving quantity of at least one copolymer of (a) an acrylic acid ester, a methacrylic acid ester, or a mixture of an acrylic acid ester and a methacrylic acid ester, and (b) not more than 20% by weight, based on the weight of the copolymer, of acrylic acid, methacrylic acid, or a mixture of acrylic acid and methacrylic acid, and wherein said esters in component (a) are esters of a C 16 or higher alcohol or an alcohol mixture wherein at least 75% by weight thereof is one or more alcohols containing at least 16 carbon atoms; and the compositions resulting therefrom.

Fluorosilicone lubricants containing nitrophenyl-substituted organopolysiloxanes

Antifoam agent and method for use in automatic transmission fluid applications involving high pressure pumps

The present invention relates to the use of a high level of a silicon-containing antifoam agent in automatic transmission fluid (“ATF”) applications. More specifically, the invention relates to a formulation and method for the reduction or elimination of pump whine that occurs in high-pressure pumps used to circulate transmissions fluids in vehicles. The invention also relates to fully formulated ATFs, to transmissions lubricated with such ATFs, and to vehicles containing transmissions lubricated with such ATFs.

Water-insoluble grafted polysiloxane copolymers and their use for defoaming and deaeration of nonaqueous oils

Gegenstand der Erfindung sind gepfropfte Polyoxyalkylen-Polysiloxan-Copolymeren und deren Verwendung als Entschäumer und Entlüfter für nichtwässrige Systeme auf Basis von Mineralölen oder Syntheseölen, bevorzugt enthaltend mindestens ein Siliconpolyether-Copolymer der allgemeinen Formel (V), DOLLAR F1 worin R·f· unterschiedliche Reste sein können, jedoch mindestens ein R·f· ein Polyetherrest ist. The invention relates to grafted polyoxyalkylene-polysiloxane copolymers and their use as defoamers and deaerators for non-aqueous systems based on mineral oils or synthetic oils, preferably containing at least one silicone polyether copolymer of the general formula (V), DOLLAR F1 wherein R · f · different radicals however, at least one R · f is a polyether radical.

Silicone antifoam.

A durable, effective foam suppressant composition produced through free-radical polymerization of mixtures of polydiorganosiloxanes, silica and a free radical polymerization initiator, and optionally, vinyl monomer(s) and pendant vinyl modified silicone oil, followed by dilution of the resulting reaction product with a low viscosity polysiloxane is disclosed. Also disclosed are methods for its production and use in suppressing foams in liquid mediums.

Prodn. of cycle-free mono:modular poly=organo:siloxane(s)

Prodn. of cycle-free polyorganosiloxanes with a mono-modular mol.wt. distribution involves reacting two or more (poly)organosiloxanes of formula RaSiO94-a0/2 (I) in the presence of an equilibrium-promoting and cyclisation-suppressing catalyst. (I) is free of condensable gps. but contains at least one R3SiO0.5 (M) gp., and at least one -R2SiO, (D) gp., with R = H or 1-30C hydrocarbyl gp., with the proviso that only one H is bonded per Si atom; and a = more than 1, pref. 1.8-2.2 (see also DE4444174).

A composition that has improved filtration capacity

Una composición de fueloil que comprende un aceite biodiésel, caracterizada por que la composición de combustible comprende al menos un aditivo para mejorar la capacidad de filtración, en donde dicho aditivo para mejorar la capacidad de filtración comprende al menos dos polímeros de poli[(met)acrilato de alquilo], en donde uno de los polímeros de poli[(met)acrilato de alquilo] comprende unidades repetitivas que se derivan de (met)acrilatos de alquilo que tienen de 16 a 40 átomos de carbono en el residuo alquílico y uno de los polímeros de poli[(met)acrilato de alquilo] comprende unidades repetitivas que se derivan de monómeros que contienen hidroxilo y/o (met)acrilatos de alcoholes etéricos.

Graft polymer and related methods and compositions