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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 8282. Отображено 100.
15-03-2012 дата публикации

Biodegradable lubricant composition

Номер: US20120065111A1
Принадлежит: Idemitsu Kosan Co Ltd

A biodegradable lubricating oil composition includes (A) an ester represented by a formula (1) below, the ester having a kinematic viscosity in a range from 300 mm 2 /s to 1000 mm 2 /s at 40 degrees C. and an acid value of 0.5 mgKOH/g or less; (B) an ester being obtained by reacting a straight-chain saturated aliphatic carboxylic acid with a polyhydric alcohol, the ester having an acid value of 0.5 mgKOH/g or less; and (C) a phosphate amine salt being obtained by reacting an acidic phosphate with an alkylamine. In the formula, Ra is a hydrocarbyl group having 4 to 20 carbon atoms, Rb is a hydrocarbyl group having 4 to 18 carbon atoms, Rc is an acyl group having 1 to 10 carbon atoms, and n is an integer of 3 to 15.

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15-03-2012 дата публикации

Self-lubricating pharmaceutical syringe stoppers

Номер: US20120065595A1
Принадлежит: Individual

In one aspect, a self-lubricating component is provided for a pharmaceutical packaging assembly. The self-lubricating component comprises a polymer composition and an effective amount of a lubricating additive such as, for example, boron nitride. In another aspect, a pharmaceutical packaging assembly may be provided having a surface thereof coated with a lubricating composition comprising boron nitride. The pharmaceutical packaging composition may be, for example, a pre-filled syringe comprising a body (barrel) and a plunger assembly.

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08-11-2012 дата публикации

Coated Fabric Products

Номер: US20120280479A1
Принадлежит: Dow Corning Corp

This relates to the coating of air bags, which are used for safety purposes to protect occupants of vehicles such as automobiles, and of air bag fabrics intended to be made into air bags. In particular the invention relates to the top coating of air bags and air bag fabrics which have been pre-coated with a cured organic resin coating composition. The top-coat is an anti-blocking coating composition comprising at least one solid lubricant dispersed in an organic polymer binder. A process for applying the top-coat is also described.

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15-11-2012 дата публикации

High Viscosity Lubricant Compositions Meeting Low Temperature Performance Requirements

Номер: US20120289445A1
Принадлежит: Cognis IP Management GmbH

A lubricant composition characterized as having a viscosity of less than about 150,000 cP at −40° C., a kinematic viscosity of less than about 150,000 cSt at −40° C., and a kinematic viscosity of at least about 18.5 cSt at 100° C. for use in association with a device involving metal to metal contact of moving parts comprising: (a) base-stock comprising (i) at least one relatively low viscosity polyalphaolefin, (ii) at least one ester, and at least one Group III base oil; (b) viscosity improver comprising (i) at least one relatively high viscosity polyalphaolefin, and (ii) a least one olefin copolymer; (c) a performance additive comprising at least one additive effective to improve at least one property of the lubricant and/or the performance of the equipment in which the lubricant is to be used; (d) at least one pour-point depressant; and, optionally, (e) at least one antifoam agent.

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28-03-2013 дата публикации

Silicone Hydraulic Fluids

Номер: US20130079263A1
Автор: Gary Allen McIntyre
Принадлежит: Dow Corning Corp

The present invention relates to a hydraulic fluid composition comprising (A) at least one polydiorganosiloxane; (B) a chlorendate diester; and (C) a lubricant compound which is an antimony or lead compound of a dialkyldithiocarbamate or dialkylphosphorodithioate.

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29-08-2013 дата публикации

Tetrafluoropropene compositions and uses thereof

Номер: US20130221262A1
Принадлежит: EI Du Pont de Nemours and Co

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.

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05-09-2013 дата публикации

Siloxane-based composition which is intended for tire molding/stripping

Номер: US20130228259A1
Автор: Stefan Breunig
Принадлежит: BLUESTAR SILICONES FRANCE SAS

The invention relates to compositions in the form of silicone oil emulsions which are intended to be applied to curing bladders as a mold-release agent during tire production.

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26-09-2013 дата публикации

Dry lubricant for conveying containers

Номер: US20130252862A1
Принадлежит: ECOLAB USA INC

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.

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03-10-2013 дата публикации

Lubricant system and method of forming the same

Номер: US20130256064A1
Принадлежит: SKF AB

A lubricant system is disclosed that is formed by contacting a fibrous network with oil and/or lubricating fluid having an affinity for the fibrous network. The fibrous network comprises oleophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least times the diameter. In addition, the oleophilic fibers have an affinity for the oil and/or lubricating fluid.

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03-10-2013 дата публикации

Apparatus for use in a system containing a lubricating fluid and method of forming the same

Номер: US20130256065A1
Принадлежит: SKF AB

An apparatus is disclosed for use in a system containing at least one of an oil and a lubricating fluid. The apparatus comprises a surface in need of lubrication during operation of the apparatus, and oleophilic fibers disposed on the surface. The oleophilic fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. In addition, the oleophilic fibers have an affinity for at least one of the oil and the lubricating fluid.

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14-11-2013 дата публикации

Hydrophilic composition for use with a lubricating system as well as an apparatus and method for using the same

Номер: US20130302609A1
Принадлежит: SKF AB

A hydrophilic composition for use with a lubricating system comprises hydrophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. The hydrophilic fibers having a strong affinity for at least one of water and other hydrophilic fluids and may remove or eliminate free or dissolved water in a lubricating system comprising at least one of an oil and a lubricating fluid.

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09-01-2014 дата публикации

Activated Gaseous Species for Improved Lubrication

Номер: US20140011717A1
Принадлежит: TriboFilm Research Inc

The present application is directed to methods and devices for altering material properties of lubricants and other cross-linkable compounds comprising organic or organometallic materials through exposure to energized gaseous species. The energized gaseous species may create reactive sites among lubricant molecules that may alter their material properties by cross-linking at least a portion of the lubricant molecules. The cross-linked lubricant may reduce the ability of the lubricant to migrate away when force is applied between lubricated sliding friction surfaces.

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09-01-2014 дата публикации

Lubricating oil composition

Номер: US20140011724A1
Принадлежит: JX Nippon Oil and Energy Corp

A lubricating oil composition which exceeds the fuel saving performance of a conventional low viscosity lubricating oil composition, contains (A) a lubricating base oil having a % C A of 2 or less, adjusted to a 100° C. kinematic viscosity of 1.5 to 4.5 mm 2 /s and (B) a viscosity index improver including (B1) a poly(meth)acrylate having a weight-average molecular weight of 50,000 or less in an amount of 1 to 10 percent by mass and (B2) a poly(meth)acrylate having a weight-average molecular weight of 100,000 to 250,000 in an amount of 0.1 to 5 percent by mass of the total composition. The composition has a 80° C. high-shear viscosity (Vs: mPa·s) and a 80° C. kinematic viscosity (Vk: mm 2 /s) ratio (Vs/Vk) of less than 1, a coefficient of traction of 0.02 or less at 40° C., an average speed of 3.0 m/s, a slip ratio of 10%, and a contact pressure of 0.4 GPa.

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05-01-2017 дата публикации

LUBRICATING MEMBERS FOR RAZOR CARTRIDGES

Номер: US20170002287A1
Принадлежит:

The invention relates to a lubricating member for a razor cartridge comprising a lipophilic structurant and a silicone polyether block copolymer and optionally a liquid phase, which can be manufactured in a simple one batch process without thermal degradation and exhibiting improved lubricating and skin care properties over a sustained period. 1. A lubricating member for a razor cartridge comprisinga) from about 10% to about 80% by weight of the lubricating member of a lipophilic structurant or mixture thereof,b) from about 0.1% to about 60% by weight of a silicone polyether block copolymer, wherein said silicone polyether block copolymer comprises from about 1% to about 50%, by weight of polyethylene oxide, from about 20% to about 90% by weight of polypropylene oxide and from about 1% to about 20% by weight of silicone andc) optionally from about 10% to about 70% by weight of a liquid phase.2. A lubricating member according to claim 1 , wherein said lipophilic structurant has a melting point of at least about 45° C.3. A lubricating member according to claim 1 , wherein said lipophilic structurant has a melting point of from at least about 45° C. to less than about 90° C.4. A lubricating member according to claim 1 , wherein said silicone polyether block copolymer has a molecular weight of from about 600 to about 30000.5. A lubricating member according to claim 1 , wherein said silicone polyether block copolymer has a molecular weight of from about 10000 to about 19000.6. A lubricating member for a razor cartridge according to wherein said lipophilic structurant is selected from C14-C20 alcohols claim 1 , microcrystalline wax claim 1 , stearyloxytrimethylsilane and mixtures thereof claim 1 , and is preferably selected from cetyl alcohol claim 1 , stearyl alcohol and mixtures thereof.7. A lubricating member for a razor cartridge according to claim 1 , wherein said member comprises a hydrophobic liquid phase.8. A lubricating member for a razor cartridge according to ...

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05-01-2017 дата публикации

LUBRICATING MEMBER FOR RAZOR CARTRIDGES

Номер: US20170002288A1
Принадлежит:

The invention relates to a lubricating member for a razor cartridge comprising a water soluble polymer and a silicone polyether block copolymer comprising from 1 to 50%, by weight of polyethylene oxide, from 20% to 90%, polypropylene oxide and from 1% to 20%, by weight of silicone for improved lubrication. 1. A lubricating member for use on a hair removal device , said lubricating member comprising a lubricating material comprising a) from about 1% to about 99% by weight of a water soluble polymer and b) from about 0.1% to about 70% by weight of a silicone polyether block copolymer wherein said silicone polyether block copolymer comprises from about 1 to about 50% , by weight of polyethylene oxide , from about 20% to about 90% by weight of polypropylene oxide and from about 1 to about 20% by weight of silicone.2. A lubricating member according to claim 1 , wherein said silicone polyether block copolymer comprises from about 1% to about 30% by weight of polyethylene oxide claim 1 , from about 20% to about 80% by weight of polypropylene oxide and from about 1% to about 20% by weight of silicone.3. The lubricating member according to claim 1 , wherein said silicone polyether block copolymer has a molecular weight of from about 10000 to about 19000.4. The lubricating member according to claim 1 , wherein said silicone polyether block copolymer has a molecular weight of from about 10000 to about 15000.5. The lubricating member according to claim 1 , wherein said silicone polyether block copolymer has a ratio of polyethylene oxide to polypropylene oxide of from about 3.0 to about 0.1.6. The lubricating member according to claim 1 , wherein the ratio of said water soluble polymer to said silicone block copolymer is from about 1:8 to about 8:1.7. The lubricating member according to claim 1 , wherein the ratio of said water soluble polymer to said silicone block copolymer is from about 1:5 to about 5:1.8. The lubricating member according to claim 1 , wherein said water ...

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05-01-2017 дата публикации

LUBRICATING MEMBERS FOR RAZOR CARTRIDGES

Номер: US20170002289A1
Принадлежит:

The invention relates to a lubricating member for a razor cartridge comprising a lipid phase comprising a lipophilic structurant and a liquid phase, wherein said liquid phase has a melting point below 45° C. and a water soluble polymer or mixture thereof which can be manufactured in a simple one batch process without thermal degradation and exhibiting improved lubricating and skin care properties over a sustained period. 1. A lubricating member for a razor cartridge comprising from about 20% to about 90% by weight of a lipid phase comprisinga) from about 10% to about 70% by weight of the lubricating member of a lipophilic structurant or mixture thereof,b) from about 10% to about 70% by weight of the lubricating member of a liquid phase,wherein said liquid phase has a melting point below about 45° C. andwherein said lubricating member further comprises from about 1% to about 40% by weight of a water soluble polymer or mixture thereof.2. A lubricating member according to claim 1 , wherein said lipophilic structurant has a melting point of from about 45° C. to less than about 60° C.3. A lubricating member according to claim 1 , wherein said lipophilic structurant has a melting point of from about 45° C. to about 5° C. less than the melting point of said water soluble polymer.4. A lubricating member according to claim 1 , wherein said at least about 90% of said water soluble polymer is in the form of discrete particulates dispersed within said lipophilic structurant .5. A lubricating member according to claim 1 , wherein said water soluble polymer has a melting point of about 60° C. or greater.6. A lubricating member for a razor cartridge according to claim 1 , wherein said liquid phase comprises a component selected from natural oil claim 1 , synthetic oil claim 1 , natural butters claim 1 , triglycerides claim 1 , petrolatum claim 1 , silicones and mixtures thereof.7. A lubricating member for a razor cartridge according to claim 1 , wherein said liquid phase comprises ...

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03-01-2019 дата публикации

HYPER-BRANCHED MACROMOLECULAR ARCHITECTURES AND METHODS OF USE

Номер: US20190002787A1

Disclosed herein are star-shaped macromolecular structures comprising a hyper-branched silicon containing core grafted with a well-defined and controllable number of alkyl (methyl)acrylate (co)polymer arms. The presence of the robust inorganic core provides additional resilience against mechanical degradation and therefore enhanced additive life time. Control over the additive architecture was complemented by tunability of the length of the grafted polymers by making use of controlled radical based polymerization techniques. The performance of these novel inorganic-organic star-shaped hybrids were compared to traditional fully organic lubricant additives. Detailed analysis revealed the multi-functional character of the hybrids by simultaneously performing as bulk viscosity modifiers, boundary lubricant, and wear protectants while being dispersed in a commercially available base oil for automotive lubrication purposes. 1. A composition of matter , comprising:A star-shaped polymer comprising polymer chains grafted to or from a densely cross-linked silicon-containing hyperbranched core, wherein the densely cross-linked silicon-containing hyperbranched core comprises a silicate functionalized with one or more organic groups.2. The composition of matter of claim 1 , wherein the polymer chains each comprise at least one compound selected from an acrylate and a methacrylate.3. The composition of matter of claim 1 , wherein a number of the polymer chains is in a range of 6-12.4. The composition of matter of claim 1 , wherein each polymer chain includes between 25-200 monomer units.5. The composition of matter of claim 1 , wherein each polymer chain is a copolymer.6. The composition of matter of claim 5 , wherein the copolymer comprises a first alkyl acrylate or alkyl methacrylate having a first pendant C8-C18 alkyl chain and a second alkyl acrylate or alkyl methacrylate having a second pendant C1-C4 alkyl chain.7. A lubricant comprising the composition of matter of combined ...

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13-01-2022 дата публикации

Lubricating oils and greases

Номер: US20220010233A1
Принадлежит: Croda Inc, Croda International PLC

A lubricating oil composition comprises an amide and at least one additive. A lubricating grease composition comprises a liquid amide, a thickener comprising a metal soap, and at least one additive. The amide in each composition is the reaction product of a secondary, branched amine and a carboxylic acid. The carboxylic acid may be a monocarboxylic acid or a dicarboxylic acid, including dimer acid. The amide is hydrolytically stable, and may be used to increase the hydrolytic stability of the lubricant oil or grease composition. Alternatively, the amide may be used to increase the additive solubility or detergency of the lubricant oil or grease composition.

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10-01-2019 дата публикации

LUBRICANT COMPOSITION AND USES THEREOF

Номер: US20190010415A1
Принадлежит: VDV LUBRICANTS

A lubricant composition comprising one or several poly-alpha olefin homopolymer(s), a suspension of particles having a size between 0.5 μm and 25 μm and an additive, and uses thereof in the glass industry, such as in the production of hollow glasses for the packaging of products to be applied on mammals. 1. A synthetic oil-based lubricant composition comprising:at least 50 wt % of one or several poly-alpha olefin homopolymer(s),a suspension of particles having a size between 0.5 μm and 25 μm and an additive.2. The lubricant composition of claim 1 , wherein the one or several poly-alpha olefin homopolymer(s) has (have) a viscosity at 40° C. comprised between 5 and 500 cSt.3. The lubricant composition of claim 1 , wherein the homopolymer(s) represent(s) at least 50 wt % of the said composition and less than 80 wt %.4. The lubricant composition according to claim 1 , wherein the particles represent at least 1 wt % of the said lubricant composition.5. The lubricant composition according to claim 1 , wherein the particles are added in the form of a suspension in a non-aqueous medium claim 1 , possibly a mineral oil claim 1 , preferably a poly-alpha olefin.6. The lubricant composition of claim 4 , wherein the additive(s) represent(s) the remaining part of the lubricant composition claim 4 , preferably wherein the said additives are anti-oxidant and/or dispersion agents and/or thickener.7. The lubricant composition of claim 5 , wherein the additive(s) represent(s) the remaining part of the lubricant composition claim 5 , preferably wherein the said additives are anti-oxidant and/or dispersion agents and/or thickener claim 5 , and possibly the suspending medium of the particles.8. The lubricant composition according to claim 1 , wherein the homopolymer(s) comprise or consists essentially of polymer of 2-methyl-1 propene.9. The lubricant composition according to claim 1 , wherein the additive is selected from the group consisting of a sulfur-containing C-Cfatty acid ester of ...

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10-01-2019 дата публикации

LONG DURATION FUEL ECONOMY LUBRICATING COMPOSITION

Номер: US20190010418A1
Принадлежит:

In the field of lubricating compositions, in particular to the Fuel Economy (FE) properties of lubricating compositions, there is disclosed the combined use of at least one derivative of molybdenum and at least one derivative of boron to maintain the Fuel Economy (FE) properties of a lubricating composition also including at least one base oil. Also disclosed is a use, within a lubricating composition including at least one base oil, of a combination of at least one derivative of molybdenum and at least one derivative of boron, and at least 30 ppm and at most 600 ppm of born boron relative to the weight of the lubricating composition to preserve the Fuel Economy (FE) properties of this lubricating composition. 113-. (canceled)14. Method for preserving the Fuel Economy (FE) properties of a lubricating composition comprising at least one base oil , comprising the addition to the lubricating composition of at least one derivative of molybdenum and at least one derivative of boron , the final lubricating composition comprising at least 30 ppm or at most 600 ppm of boron relative to the weight of the lubricating composition.15. The method according to claim 14 , wherein the Fuel Economy properties are measured:in accordance with Sequence VI-D conditions implemented as per standard ASTM D7589; orin accordance with the Plint SRV test; orin accordance with VI-D test conditions implemented as per standard ASTM D7589 and in accordance with the Plint SRV test.16. The method according to claim 14 , wherein the preserving of Fuel Economy properties is measured on the used lubricating composition in comparison with the fresh lubricating composition.17. The method according to claim 14 , wherein the preserving of Fuel Economy properties is measured on the used composition.18. The method according to claim 14 , wherein the preserving of Fuel Economy properties is higher than 25%.19. The method according to claim 14 , wherein the derivative of molybdenum is an organo-molybdenum ...

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19-01-2017 дата публикации

HIGH TEMPERATURE HEAT-RESISTANT OIL-BASED RELEASE AGENT, HIGH TEMPERATURE HEAT-RESISTANT ELECTROSTATIC APPLICATION-TYPE OIL-BASED RELEASE AGENT, AND APPLICATION METHOD THEREFOR

Номер: US20170015934A1
Принадлежит:

An oil-based release agent of the present invention contains a petroleum-based hydrocarbon solvent (a) and a high temperature adhesive (b), is applied to a metal die used for die casting or casting, has high adhesion and high lubricity even with respect to a metal die at a high temperature particularly of 300° C. or higher, and can prevent seizure. In addition, the present invention provides a method for applying the oil-based release agent of the present invention by controlling an adhesion amount thereof by micronization and speed-control thereof with respect to a metal die at a high temperature, and an electrostatic application method. 1. A high temperature heat-resistant oil-based release agent comprising a petroleum-based hydrocarbon solvent (a) and a high temperature adhesive (b) ,wherein the high temperature adhesive (b) is at least one selected from the group consisting of a fluororesin, polysulfone, a phenolic resin, an epoxy resin, and a silicon-containing compound, and has a weight average molecular weight of 100,000 or more.2. The high temperature heat-resistant oil-based release agent according to claim 1 , wherein the petroleum-based hydrocarbon solvent (a) is at least one selected from the group consisting of a paraffinic hydrocarbon solvent claim 1 , an olefinic hydrocarbon solvent claim 1 , a naphthenic hydrocarbon solvent claim 1 , and an aromatic hydrocarbon solvent.3. (canceled)4. The high temperature heat-resistant oil-based release agent according to claim 1 , wherein the high temperature adhesive (b) is dimethyl polysiloxane having a weight average molecular weight of 100 claim 1 ,000 or more.5. The high temperature heat-resistant oil-based release agent according to claim 1 , further comprising a low volatile conductive modifier (f).6. The high temperature heat-resistant oil-based release agent according to claim 5 , wherein the low volatile conductive modifier (f) contains at least one selected from the group consisting of an imidazolium ...

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21-01-2016 дата публикации

Lubricating composition for a marine engine

Номер: US20160017251A1
Принадлежит: Total Marketing Services SA

The present invention relates to a lubricant composition for a marine engine, in particular for a four-stroke or two-stroke marine engine, comprising at least one base oil, at least one alkoxylated fatty amine, at least one hydrogenated styrene-isoprene copolymer and at least one detergent.

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26-01-2017 дата публикации

NEW MODIFIED SILICON OIL FOR WAX-FREE DIE CASTING LUBRICANTS

Номер: US20170021408A1
Принадлежит:

The present invention relates to a mixture of polyalkylsiloxanes obtainable through a hydrosilylation reaction wherein a mixture of monounsaturated olefins is reacted with an amount of one or more polyalkylhydrosiloxanes in the presence of a hydrosilylation catalyst. Furthermore, the invention concerns polyalkylsiloxane comprising alkyl side chains consisting of linear or branched alkyl groups with 40 to 60 carbon atoms, with 16 to 30 carbon atoms, and 6 to 15 carbon atoms. In addition, the present invention relates to water-based compositions suitable for use in metal casting processes as a mold release agent comprising a mixture of polyalkylsiloxanes, a non-ionic surfactant having a HLB value of at least 8, and less than 20 wt.-% of waxes. In addition, the present invention relates to the use of the polyalkylsiloxanes and mixtures of polyalkylsiloxanes. 2. The mixture of polyalkylsiloxanes according to claim 1 , wherein the amount of polyalkylhydrosiloxanes is at least 60% claim 1 , but not more than a stoichiometric amount.3. The mixture of polyalkylsiloxanes according to claim 1 , wherein the one or more polyalkylhydrosiloxanes is at least partially selected from polymethylhydrosiloxanes.4. The mixture of polyalkylsiloxanes according to claim 1 , wherein at least 80 mol % of the mixture of monounsaturated olefins are selected from α-olefins.5. The mixture of polyalkylsiloxanes according to claim 1 , wherein temperature at which the mixture of monounsaturated olefins is reacted with the one or more polyalkylhydrosiloxanes is in a range of from 80° C. to 180° C. for a time sufficient to yield not more than 10 mol % Si—H bonds in the mixture of polyalkylsiloxanes.6. The mixture of polyalkylsiloxanes according to claim 1 , wherein the hydrosilylation catalyst is a platinum catalyst.7. The mixture of polyalkylsiloxanes according to claim 1 , wherein an inert liquid vehicle that acts as a solvent for the one or more polyalkylhydrosiloxanes and/or the mixture of ...

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25-01-2018 дата публикации

Lubricating oil composition for internal combustion engine

Номер: US20180023026A1
Автор: Shintaro KUSUHARA
Принадлежит: JXTG Nippon Oil and Energy Corp

Provided is a lubricating oil composition for internal combustion engine, which further reduces the friction to exhibit excellent fuel efficiency performance. A lubricating oil composition for internal combustion engine, which contains (A) a lubricant base oil having a dynamic viscosity of 2.0 to mm 2 /s at 100° C., (B) a molybdenum-based friction modifier in an amount of 0.005 to 0.2% by mass, in terms of a molybdenum content, based on the mass of the composition, (C) a salicylate-based metal detergent in an amount of 0.01 to 1% by mass, in terms of a metal content, based on the mass of the composition, and (D) at least one compound selected from amino acids having an alkyl group, alkenyl group, or acyl group having 15 to 24 carbon atoms and/or derivatives thereof in an amount of 0.01 to 10% by mass.

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25-01-2018 дата публикации

Compositions of thermoassociative additives with controlled association and lubricant compositions containing them

Номер: US20180023028A1

The present disclosure relates to novel compositions of additives that result from mixing at least two thermoassociative and exchangeable copolymers and at least one compound for controlling the association of these two copolymers. A lubricant composition results from mixing at least one lubricating base oil, at least two thermoassociative and exchangeable copolymers and at least one compound for controlling the association of these two copolymers. The present disclosure also relates to a process for modulating the viscosity of a lubricant composition that results from mixing at least one lubricating base oil, at least two thermoassociative and exchangeable copolymers; as well as the use of a diol compound for modulating the viscosity of a lubricant composition.

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25-01-2018 дата публикации

Water-Based Lubricants for Conveyor Belts

Номер: US20180023029A1
Принадлежит:

The invention relates to water-based lubricants for conveyor belts. More particularly, the invention relates to water-based lubricants for conveyor belts for the drinks industry. 1. Water-based lubricant composition for conveyor belts , comprising:4% to 30% by weight of at least one viscosifying component,0.05% to 10% by weight of preservative substances that provide protection from soiling,water to 100% by weight,characterized in that the viscosifying component is a water-soluble carboxylic ester, or a mixture of a water-soluble carboxylic ester and a low molecular weight polyalkylene glycol.2. Lubricant composition according to claim 1 , further comprising one or more components selected from the group consisting of:0.05% to 5% by weight of antiwear agent,0.05% to 15% by weight of antifreeze,0.05% to 15% by weight of anticorrosive,0.05% to 5% by weight of antiwear agent,0.05% to 5% by weight of defoamer,0.05% to 5% by weight of wetting agent,0.05% to 5% by weight of biocides,0.005% to 2% by weight of fragrances.3. Lubricant composition according to claim 1 , characterized in that the preservative substances that provide protection from soiling are a compound or mixture selected from the group consisting of foaming or non-foaming emulsifiers from the class of ionic and nonionic surfactants.4. Lubricant composition according to claim 2 , characterized in that the antiwear agent is a water-soluble compound containing sulfur claim 2 , phosphorus and/or nitrogen.5. Lubricant composition according to claim 2 , characterized in that the antifreeze is a compound selected from the group consisting of mono- and polyhydric alcohols and derivatives thereof.6. Lubricant composition according to claim 2 , characterized in that the anticorrosive is a compound selected from the group consisting of neutralized and non-neutralized carboxylic acids claim 2 , neutralized phosphoric acids and/or phosphoric acid derivatives claim 2 , benzoic acid and/or benzoic acid derivatives claim 2 ...

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23-01-2020 дата публикации

ELECTRORHEOLOGICAL FLUID

Номер: US20200024543A1
Автор: QIU Zhaohui, XIONG Xiaomin
Принадлежит: SUN YAT-SEN UNIVERSITY

The present invention provides an electrorheological fluid, which includes a dielectric particle, a conductor particle and insulating oil, and the dielectric particle is evenly dispersed in the insulating oil; wherein the conductor particle is evenly dispersed in the insulating oil or inlaid in an interior and on a surface of the dielectric particle. The electrorheological fluid has the advantages of high shear stress, long service life, good temperature stability and small leakage current. 1. An electrorheological fluid , comprising a dielectric particle , a conductor particle and insulating oil , wherein the dielectric particle is evenly dispersed in the insulating oil , and the conductor particle is evenly dispersed in the insulating oil or inlaid in an interior and on a surface of the dielectric particle.2. The electrorheological fluid according to claim 1 , wherein the dielectric particle has a dielectric constant greater than 10 and a resistivity greater than 10 Ω·m.3. The electrorheological fluid according to claim 2 , wherein the dielectric particle is selected from one or more of TiO claim 2 , CaTiO claim 2 , BaTiO claim 2 , SrTiOand LaTiO.4. The electrorheological fluid according to claim 1 , wherein when a temperature is less than 20° C. claim 1 , the conductor particle is a solid with a resistivity less than 10Ω·m claim 1 , and the conductor particle is selected from one or more of metal claim 1 , carbon and a conductive organic matter.5. The electrorheological fluid according to claim 4 , wherein the metal is one or more of Ag claim 4 , Al claim 4 , Au claim 4 , Cu claim 4 , Fe claim 4 , Hf claim 4 , In claim 4 , Nd claim 4 , Ni claim 4 , Pd claim 4 , Pt claim 4 , Rh claim 4 , Ru claim 4 , Sm claim 4 , Sn claim 4 , Ti claim 4 , V claim 4 , Y and Zr;the carbon is one or more of amorphous carbon, graphite, graphene and reduced graphene oxide; andthe conductive organic matter is one or more of polyacetylene, polythiophene, polypyrrole, polyaniline, ...

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28-01-2021 дата публикации

COMPOSITIONS OF POLYMER COMPOSITES FOR EFFLUENTS DELIVERY AND APPLICATIONS THEREOF

Номер: US20210024847A1
Принадлежит:

Coating compositions, coatings, and coated articles are provided exhibiting drag-reducing properties. The drag reduction can lead to improved flow, e.g. an improved measure of slip length, over both laminar and turbulent flow conditions, e.g. for Reynolds numbers less than 2,000 to as much as about 500,000. The coating compositions include abase matrix and an effluent polymer dispersed in the base resin in such a way that, when an exposed surface of the drag-reducing coating is exposed to an aqueous medium, the effluent polymer migrates to the exposed surface of the drag-reducing coating and into the aqueous medium at or near the exposed surface to create a diluted effluent polymer solution in the aqueous medium at or near the exposed surface; wherein the diluted effluent polymer solution reduces a drag of the surface moving through the aqueous medium. 1. A composite composition capable of curing to form a drag-reducing coating on a surface , the composite composition comprising:a base resin composition capable of curing to form a coating on the surface; andan effluent polymer dispersed in the base resin in such a way that, when an exposed surface of the drag-reducing coating is exposed to an aqueous medium, the effluent polymer migrates to the exposed surface of the drag-reducing coating and into the aqueous medium at or near the exposed surface to create a diluted effluent polymer solution in the aqueous medium at or near the exposed surface;wherein the diluted effluent polymer solution reduces a drag of the surface moving through the aqueous medium.2. The composite composition of claim 1 , wherein the base resin composition comprises (i) a curable thermoset or thermoplastic polymer resin and (ii) polymerizable monomers;wherein upon curing the polymerizable monomers polymerize inside the thermoset or thermoplastic polymer to form an interpenetrating polymer network; andwherein the effluent polymer is diffused within the interpenetrating polymer network and swells ...

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28-01-2021 дата публикации

NOVEL FLUORINATED POLYACRYLATES ANTIFOAMS IN ULTRA-LOW VISCOSITY (<5 CST) FINISHED FLUIDS

Номер: US20210024850A1
Принадлежит:

There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved foam performance in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. A lubricating composition comprising a) at least one oil of lubricating viscosity; and b) an antifoam component comprising a poly(acrylate) copolymer. The poly(acrylate) copolymer, b) may include (i) from about 30 wt % up to about 99 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and (ii) from about 1 wt % up to about 70 wt % of a fluorinated (meth)acrylate monomer. 1. A lubricating composition comprising:a) at least one oil of lubricating viscosity; and [{'sub': 1', '4, '(i) from about 40 wt % up to about 80 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and'}, '(ii) from about 20 wt % up to about 60 wt % of a fluorinated (meth)acrylate monomer;', {'sub': 'w', 'the antifoam component having a Mof at least 1,000 Daltons.'}], 'b) an antifoam component comprising a poly(acrylate) copolymer including2. The lubricating composition of claim 1 , wherein the (meth)acrylate monomer has Cto Calkyl esters of (meth)acrylic acid.3. A lubricating composition comprising:a) at least one oil of lubricating viscosity; and [{'sub': 1', '3, '(i) from about 20 wt % up to about 55 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and'}, '(ii) from about 5 wt % up to about 50 wt % of a fluorinated (meth)acrylate monomer; and', {'sub': 4', '12, '(iii) from about 20 wt % up to about 75 wt % of a (meth)acrylate comonomer having Cto Calkyl esters of (meth)acrylic acid;'}], 'b) an antifoam component comprising a poly(acrylate) copolymer including{'sub': 'w', 'the antifoam component having a Mof at least 1,000 Daltons.'}4. (canceled)5. The lubricating composition of or claim 1 , wherein the at least one oil of lubricating viscosity is a Group I ...

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01-02-2018 дата публикации

Heat transfer methods, systems and compositions

Номер: US20180030324A1
Принадлежит: Honeywell International Inc

Disclosed are refrigerants comprising at least about 97% by weight of a blend of three compounds, said blend consisting of: from about 40% by weight to about 49% by weight difluoromethane (HFC-32), from about 6% by weight to about 12% by weight pentafluoroethane (HFC-125), from about 33% by weight to about 40% by weight trifluoroiodomethane (CF 3 I); and from about 2% by weight to about 12% by weight of trans 1,3,3,3-tetrafluoropropene (trans HFO-1234ze), wherein the percentages are based on the total weight of the three compounds in the blend, and systems and method using same.

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09-02-2017 дата публикации

NEW MODIFIED SILICON OIL FOR LOW TEMPERATURE CURE DIE CASTING LUBRICANTS

Номер: US20170037192A1
Принадлежит:

The present invention relates to a mixture of polyalkylsiloxanes that cure at temperatures of about 170° C. while being unreactive under ambient conditions during storage or transport and which are obtained through a hydrosilylation reaction wherein a mixture of ethylenically unsaturated olefins consisting of 1-100% of one or more polyene(s), and 0-99 mol % of monounsaturated olefins with 6 to 15 carbon atoms is reacted with an amount of one or more polyalkylhydrosiloxanes in the presence of a hydrosilylation catalyst. Furthermore, the present invention relates to water-based compositions suitable for use in metal casting processes as a mold release agent comprising a mixture of polyalkylsiloxanes of the invention and a non-ionic surfactant. In addition, the present invention relates to the use of the polyalkylsiloxanes and mixtures of polyalkylsiloxanes as defined herein. 2. The mixture of polyalkylsiloxanes according to claim 1 , wherein said terminal double bond and said one or more tri- or tetrasubstituted double bond(s) are non-conjugated.3. The mixture of polyalkylsiloxanes according to claim 1 , wherein said polyene(s) comprise terpenes.4. The mixture of polyalkylsiloxanes according to claim 3 , wherein said terpenes comprise (R)-limonene claim 3 , (S)-limonene or a mixture thereof.5. The mixture of polyalkylsiloxanes according to claim 1 , wherein the amount of polyalkylhydrosiloxanes equals at least 60% of a stoichiometric amount and not more than the stoichiometric amount.6. The mixture of polyalkylsiloxanes according to claim 1 , wherein the polyalkylhydrosiloxanes are at least partially selected from polymethylhydrosiloxanes.7. The mixture of polyalkylsiloxanes according to claim 1 , wherein at least 80 mol % of the repeating units according to the general structure (I) have a residue Rbeing a methyl group.8. The mixture of polyalkylsiloxanes according to claim 1 , wherein at least 80 mol % of the monounsaturated olefins with 6 to 15 carbon atoms are ...

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16-02-2017 дата публикации

SILANE COMPOUND CONTAINING PERFLUORO(POLY)ETHER GROUP

Номер: US20170044315A1
Принадлежит: DAIKIN INDUSTRIES, LTD.

A perfluoro(poly)ether group containing silane compound of the formula (1): 2. The perfluoro(poly)ether group containing silane compound according to wherein k is 2 or more in at least one unit in parentheses with the subscript β in the formula (1).3. The perfluoro(poly)ether group containing silane compound according to wherein k is 3 in at least one unit in parentheses with the subscript β in the formula (1).4. The perfluoro(poly)ether group containing silane compound according to wherein k is 3 in all units in parentheses with the subscript β in the formula (1).5. The perfluoro(poly)ether group containing silane compound according to wherein the number of Si atoms which are straightly linked via the Z group in Q is one or two.6. The perfluoro(poly)ether group containing silane compound according to wherein the number of Si atoms which are straightly linked via the Z group in Q is one.7. The perfluoro(poly)ether group containing silane compound according to wherein Rf is a Cperfluoroalkyl group in the formula (1).8. The perfluoro(poly)ether group containing silane compound according to wherein PFPE in the formula (1) is a group of the following formula (a) or (b):{'br': None, 'sub': 3', '6', 'b, '—(OCF)—\u2003\u2003(a)'} {'br': None, 'sub': 4', '8', 'a', '3', '6', 'b', '2', '4', 'c', '2', 'd, '—(OCF)—(OCF)—(OCF)—(OCF)—\u2003\u2003(b)'}, 'in the formula (a), b is an integer of from 1 or more and 200 or less; or'}in the formula (b), a and b are each independently an integer of 0 or more and 30 or less, c and d are each independently an integer of 1 or more and 200 or less, the sum of a, b, c and d is 10 or more and 200 or less, and the occurrence order of the respective repeating units in parentheses with the subscript a, b, c or d is not limited in the formula.9. The perfluoro(poly)ether group containing silane compound according to wherein in PFPE in the formula (1):{'br': None, 'sub': 4', '8', 'a', '2', '2', '2', '2', 'a, '—(OCF)— is —(OCFCFCFCF)—,'}{'br': None, ...

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03-03-2022 дата публикации

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

Номер: US20220064564A1
Автор: Nakazawa Hiroki
Принадлежит: ENEOS CORPORATION

A lubricating oil composition for an internal combustion engine has a HTHS viscosity at 150° C. of 2.25 to <2.55 mPa·s and includes: (A) a lubricating base oil including (a) mineral base oil(s) and/or (a) synthetic base oil(s), and having a kinematic viscosity at 100° C. of 3.8-4.6 mm/s; (B) 1000-2000 mass ppm, in terms of metal content, of a metallic detergent including (a) metal salicylate detergent(s), and delivering ≥10 mmol/kg of total salicylate soap base per kilogram of the composition; (C) 1.0 to 4.0 mass % of a comb-shaped poly(meth)acrylate having a Mw of 350,000-1,000,000 and a PDI of ≤4.0; and (D) 100-1000 mass ppm, in terms of nitrogen, of a succinimide dispersant including (i) (a) non-modified succinimide dispersant(s) and/or (ii) (a) boric acid-modified succinimide dispersant(s), wherein the (i) and the (ii), in total, deliver 70 mass % of total nitrogen content of the component (D).

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13-02-2020 дата публикации

GEAR LUBRICANT COMPOSITION

Номер: US20200048572A1
Принадлежит:

The present application relates to a gear lubricant composition comprising: 97 to 99.9 wt.-% trimethylolpropane triester; and 0.1 to 3 wt.-% at least one additive selected from among anti-wear additives, extreme pressure additives, antioxidants, anti-corrosion additives, metal deactivator additives, antifoams, and mixtures thereof. 1. Method of lubricating gearing or equipment comprising gearing , in particular the stem tube comprising the lubrication of the parts in contact with a lubricant composition comprising:97 to 99.9% by weight of a trimethylolpropane triester; and0.1 to 3% by weight of at least one additive chosen from among anti-wear additives, extreme pressure additives, antioxidants, anticorrosive additives, metal deactivator additives, defoamers, and mixtures thereof.2. Method according to claim 1 , wherein the trimethylolpropane triester is a linear or branched C14-C20 saturated or unsaturated fatty acid or saturated fatty acid ester claim 1 , preferably C16-C20 claim 1 , for example C18.3. Method according to claim 1 , wherein the trimethylolpropane triester is a branched C14-C20 saturated fatty acid ester claim 1 , preferably C16-C20 claim 1 , for example C18.4. Method according to claim 3 , wherein the trimethylolpropane triester is trimethylolpropane isostearate.5. Method according to claim 1 , wherein the composition comprises:0.1 to 1% by weight of an anti-wear additive phosphate of amine; and0.1 to 1% by weight of a phenolic antioxidant additive.6. Method according to wherein the amine phosphate is selected from amine alkyl phosphate.7. Method according to claim 1 , wherein the equipment comprising gearing is the stem tube.8. (canceled) The present invention relates to gear lubricant compositions. Said compositions according to the invention are biodegradable, do not bioaccumulate in organisms and do not represent toxicity to the environment, especially the aquatic environment.Since December 2013, US regulations have been amended to require all ...

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13-02-2020 дата публикации

AQUEOUS ACIDIC COMPOSITION FOR TREATING METAL SURFACES, TREATING METHOD USING THIS COMPOSITION AND USE OF TREATED METAL SURFACE

Номер: US20200048775A1
Принадлежит: Tata Steel IJmuiden B.V.

An aqueous acidic composition for treating metal surfaces, the composition including the following components: 1. An aqueous acidic composition for treating metal surfaces , said composition comprising the following components:a) at least one water soluble or water dispersable anionic polyelectrolyte;b) at least one organofunctional silane comprising one or more reactive functional groups selected from the group comprising amino, mercapto, methacryloxy, epoxy and vinyl;c) at least one water dispersible solid wax;wherein the weight ratio between components a:b is in the range of 1:2-4:1, based on dry matter;the weight ratio between components (a+b):c is in the range of 1:3-3:1, based on dry matter, and wherein components a and b may be present—at least partially—as their graft reaction product,wherein the at least one anionic polyelectrolyte has an acid value of at least 250.2. The aqueous acidic composition according to claim 1 , wherein the at least one anionic polyelectrolyte has an acid value of at least 400 mg KOH/g.3. The aqueous acidic composition according to claim 2 , wherein the at least one anionic polyelectrolyte has an acid value of at least 600 mg KOH/g.4. The aqueous acidic composition according to claim 2 , wherein the at least one anionic polyelectrolyte has an acid value of at least 700 mg KOH/g.5. The aqueous acidic composition according to claim 1 , wherein the at least one anionic polyelectrolyte is present in an amount of 0.6-40 g/L.6. The aqueous acidic composition according to claim 5 , wherein the at least one anionic polyelectrolyte is present in an amount of 1.6-20 g/L.7. The aqueous acidic composition according to claim 1 , wherein the at least one organofunctional silane is present in an amount of 0.3-40 g/L.8. The aqueous acidic composition according to claim 7 , wherein the at least one organofunctional silane is present in an amount of 0.8-20 g/L.9. The aqueous acidic composition according to claim 1 , wherein the at least one water ...

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23-02-2017 дата публикации

HYDROGENATED POLYMERS WITH A RADIAL STRUCTURE HAVING A CORE BASED ON CALIXARENES AND USE THEREOF IN LUBRICANT COMPOSITIONS

Номер: US20170051224A1
Принадлежит:

Hydrogenated polymers with a radial structure having a core made up of calixarenes of the general formula (I), to the core of which is linked a number P of hydrogenated linear polymer segments selected from: —hydrogenated homopolymers or copolymers of conjugated dienes; or —hydrogenated copolymers of said conjugated dienes and monoalkenyl arenes, and —mixtures thereof said formula (I) in which: —R, R, Rand Rare independently selected from hydrogen; a group containing carbon and hydrogen; a group also containing heteroatoms in addition to carbon and hydrogen; a group also containing silicon in addition to carbon, hydrogen and heteroatoms; —one of the two substituents Rand Ris hydrogen, while the other may be hydrogen or alkyl, with a number of carbon atoms between 1 and 6, preferably methyl and ethyl; —n is an integer in the range between 4 and 16. 2. Hydrogenated radial polymers according to claim 1 , in which the linear polymer segments are hydrogenated homopolymers or hydrogenated copolymers of conjugated dienes selected from butadiene claim 1 , isoprene claim 1 , 1 claim 1 ,3-pentadiene claim 1 , 2 claim 1 ,3-dimethyl-1 claim 1 ,3-butadiene claim 1 , 3-butyl-1 claim 1 ,3-octadiene claim 1 , 1-phenyl-1 claim 1 ,3-butadiene and 1 claim 1 ,3-hexadiene.3. Hydrogenated radial polymers according to claim 2 , in which the linear polymer segments are selected from homopolymers or copolymers of butadiene and isoprene.4. Hydrogenated radial polymers in which the linear polymer segments are hydrogenated copolymers of the conjugated dienes according to and of monoalkenyl arenes selected from styrene claim 2 , ortho-methylstyrene claim 2 , para-methylstyrene claim 2 , meta-methylstyrene claim 2 , tert-butylstyrene and monovinylnaphthalene.5. Hydrogenated radial polymers according to claim 4 , in which the linear polymer segments are hydrogenated copolymers of butadiene and styrene claim 4 , or hydrogenated copolymers of isoprene and styrene.6. Hydrogenated radial polymers ...

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23-02-2017 дата публикации

USE OF A LUBRICANT COMPOSITION FOR REDUCING KNOCKING

Номер: US20170051226A1
Принадлежит: TOTAL MARKETING SERVICES

The present disclosure relates to a lubricant composition including at least one base oil and at least one organic compound. The lubricant composition thus makes it possible to reduce, or even to eliminate knock in a vehicle engine, preferably a motor vehicle engine. 2. The method according to in which R1 represents:a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group, comprising from 1 to 10 carbon atoms;an —OR7 group in which R7 represents a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group, comprising from 1 to 10 carbon atoms; andan —NR8R9 group in which R8 and R9, identical or different, represent independently a hydrogen atom or a saturated or unsaturated, substituted or unsubstituted alkyl group, comprising from 1 to 3 carbon atoms3. The method according to in which R5 represents a hydrogen atom.4. The method according to in which R6 represents a hydrogen atom.5. The method according to in which R1 represents:a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms;an —OR7 group in which R7 represents a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; and R8 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms;', 'R9 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms., 'an —NR8R9 group in which6. The method according to in which R2 represents:a hydrogen atom;a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; R11 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms; and', 'R12 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms., 'an —NR11R12 group in which7. The method according to in which R3 represents:a hydrogen atom;a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; R14 represents a hydrogen atom or a saturated alkyl ...

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26-02-2015 дата публикации

Composition for Sliding Member

Номер: US20150057199A1
Принадлежит: Nok Klueber Co Ltd

A composition for sliding member includes a binder resin, a solid lubricant, and an epoxy modified silicone oil having an epoxy group at both ends or at one end thereof. A weight ratio of the binder resin and the epoxy modified silicone oil is 97:3 to 75:25.

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15-05-2014 дата публикации

Lubricant oil composition for compression refrigerator

Номер: US20140135241A1
Автор: Tomoya Matsumoto
Принадлежит: Idemitsu Kosan Co Ltd

The present invention is able to provide a lubricating oil composition for compression refrigerating machine having excellent thermal/chemical stability even when used for a compression refrigerating machine using a saturated fluorinated hydrocarbon refrigerant having a low carbon number and a low global warming potential, by using a refrigerant containing a saturated fluorinated hydrocarbon having from 1 to 3 carbon atoms, which uses, as a base oil, an oxygen-containing organic compound composed of at least one member selected from a polyoxyalkylene glycol, a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol and a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol monoether and a polyvinyl ether, and a polyol ester, each having a hydroxyl value of not more than 15 mgKOH/g.

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04-03-2021 дата публикации

Polymeric-inorganic nanoparticle compositions, manufacturing process thereof and their use as lubricant additives

Номер: US20210062106A1
Принадлежит: EVONIK OPERATIONS GMBH

The invention relates to polymeric-inorganic nanoparticle compositions and preparation processes thereof. The invention also relates to an additive and lubricant composition comprising these polymeric-inorganic nanoparticle compositions, as well as to the use of these polymeric-inorganic nanoparticle compositions in an oil lubricant formulation to improve tribological performance, in particular to improve anti-friction performance on metal parts.

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28-02-2019 дата публикации

Phosphono paraffins

Номер: US20190062661A1
Принадлежит: Boeing Co

Aspects described herein generally relate to methods of making a phosphono paraffin comprising forming a reaction mixture by mixing a haloparaffin, a phosphite, and sodium iodide. Methods comprise heating the reaction mixture to form the phosphono paraffin. Aspects described herein further relate to a phosphono paraffin represented by formula (I): wherein each instance of R 1 is independently —H or wherein each instance of R 2 and R 3 is independently linear or branched C 1-20 alkyl, C 1-20 cycloalkyl, or aryl; the number of instances where R 1 is of formula (I) is between about 2 and about 8; and n is an integer between 4 and 22.

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17-03-2022 дата публикации

PHOSPHONO PARAFFINS

Номер: US20220081637A1
Принадлежит:

Aspects described herein generally relate to methods of making a phosphono paraffin comprising forming a reaction mixture by mixing a haloparaffin, a phosphite, and sodium iodide. Methods comprise heating the reaction mixture to form the phosphono paraffin. Aspects described herein further relate to a phosphono paraffin represented by formula (I): 2. The method of claim 1 , wherein the vehicle is an aircraft.3. The method of claim 1 , wherein the hydraulic system comprises a reservoir claim 1 , an accumulator claim 1 , a heat exchanger claim 1 , a filtering system claim 1 , or combination(s) thereof.4. The method of claim 1 , wherein each of Rand Ris independently Calkyl or cycloalkyl of Cor less.6. The method of claim 1 , wherein n is an integer of about 10 to about 16.7. The method of claim 1 , wherein each of Rand Ris independently linear Calkyl.8. The method of claim 1 , wherein each of Rand Ris independently Calkyl or cycloalkyl of Cor less.9. The method of claim 1 , wherein each of Rand Rare the same.11. The method of claim 10 , wherein each of Rand Ris independently linear Calkyl.12. The method of claim 11 , wherein each of Rand Ris independently Calkyl or cycloalkyl of Cor less.13. The method of claim 12 , wherein Rand Rare the same.14. The method of claim 10 , wherein each of Rand Ris independently isopropyl claim 10 , butyl claim 10 , or phenyl.19. The method of claim 1 , wherein each instance of Rand Ris aryl.20. The method of claim 1 , wherein the hydraulic fluid further comprises a component selected from the group consisting of a phosphonate claim 1 , an antioxidant claim 1 , a mineral oil claim 1 , a vegetable oil claim 1 , an ester claim 1 , a polyalphaolefin claim 1 , a silicone oil claim 1 , an alkanol claim 1 , an alkylated aromatic hydrocarbon claim 1 , a corrosion inhibitor claim 1 , and combination(s) thereof. This application is a U.S. non-provisional parent application that is a continuation of co-pending U.S. patent application Ser. No. 16/ ...

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10-03-2016 дата публикации

Release Agent Composition For Improved Coefficient of Friction

Номер: US20160067956A1
Принадлежит: Xerox Corp

A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, comprises a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl. The concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0001 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.5 or more to the print media, resulting in improved finishing and converting equipment interaction. The release agent may have a viscosity of about 50 cSt.

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09-03-2017 дата публикации

Use of eugenol polyethers and eugenol polyether siloxanes as wetting agents

Номер: US20170065951A1
Принадлежит: EVONIK DEGUSSA GmbH

The present invention relates to compositions comprising eugenol polyethers and/or eugenol polyethers modified with siloxanes, and to the use of eugenol polyethers in polyether siloxanes based on these eugenol polyethers as wetting agents.

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12-03-2015 дата публикации

Lubricating oil composition for engine made of aluminum alloy and lubrication method

Номер: US20150072907A1
Принадлежит: LDEMITSU KOSAN CO Ltd

The invention provides a lubricating oil composition for an engine made of aluminum alloy containing a base oil, a succinimide compound, and a thioheterocyclic compound represented by the following formula (I) and has a sulfur content of 0.10 mass % to 1.00 mass % based on the total amount of the composition, and a phosphorus content and a sulfated ash content, based on the total amount of the composition, falling within specific ranges, and a lubrication method employing the composition. The composition exhibits excellent wear resistance to aluminum alloy sliding parts of engines and can considerably reduce the high-phosphorus ZnDTP content and the metallic detergent content, while excellent wear resistance to aluminum alloy is maintained. The thioheterocyclic compound is represented by the formula: (R 1 ) k —(S) m -A S -(S) n —(R 2 ) l   (I) (wherein As represents a thioheterocycle; each of R 1 and R 2 independently represents a hydrogen atom, an amino group, a C1 to C50 hydrocarbyl group selected from among an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group, and an aryl group, or, in the case of a hydrocarbyl group, a C1 to C50 heteroatom-containing group having an atom selected from among an oxygen atom, a nitrogen atom, and a sulfur atom, in the hydrocarbyl group; and each of k, l, m, and n is an integer of 0 to 5).

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24-03-2022 дата публикации

Lubricating Oil Compositions

Номер: US20220089967A9
Автор: Hartley Joseph P.
Принадлежит: lnfineum International Limited

A crankcase lubricating oil composition for the crankcase of a spark-ignited or compression-ignited internal combustion engine, comprising a magnesium-containing detergent, in an amount sufficient to provide from 200-4000 ppm magnesium to the lubricating oil composition, in combination with an oil-soluble or oil-dispersible molybdenum compound in an amount sufficient to provide from 600-1500 ppm molybdenum atoms to the lubricating oil composition, and with an oil-soluble or oil-dispersible boron-containing compound in an amount sufficient to provide from 200-600 ppm boron atoms to the lubricating oil composition to improve the friction and fuel economy performance. 1. A crankcase lubricating oil composition comprising or made by admixing:(A) an oil of lubricating viscosity, in a major amount;(B) an oil-soluble or oil-dispersible molybdenum-containing additive, providing from 600-1500 ppm of molybdenum atoms to the lubricating oil composition;(C) a detergent composition comprising one or more magnesium sulfonate detergents in an amount providing from 200 to 4000 ppm magnesium atoms to the lubricating oil composition, measured according to ASTM D5185; and(D) an oil-soluble or oil-dispersible boron-containing compound present in the lubricating oil composition in an amount sufficient to provide from 200-600 ppm boron atoms to the lubricating oil composition, measured according to ASTM D5185.2. A lubricating oil composition according to claim 1 , wherein the detergent composition comprises one or more additional detergent additive selected from magnesium salicylate claim 1 , calcium salicylate claim 1 , calcium sulfonate claim 1 , magnesium phenate claim 1 , calcium phenate claim 1 , and hybrid detergents comprising two or more of these additional detergent additives selected from magnesium salicylate claim 1 , calcium salicylate claim 1 , calcium sulfonate claim 1 , magnesium phenate claim 1 , and calcium phenate.3. A lubricating oil composition according to claim 2 , ...

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16-03-2017 дата публикации

TETRAFLUOROPROPENE COMPOSITIONS AND USES THEREOF

Номер: US20170073561A1
Принадлежит:

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 114-. (canceled)15. A composition comprising HFO-1234yf , HFC-32 , HFC-125 , and HFC-134a.16. The composition of wherein the composition comprises from about 20 weight percent to about 98 weight percent HFO-1234yf.17. The composition of further comprising at least one lubricant selected from the group consisting of mineral oils claim 15 , alkylbenzenes claim 15 , synthetic paraffins claim 15 , synthetic naphthenes claim 15 , poly alpha olefins claim 15 , polyalkylene glycols claim 15 , dibasic acid esters claim 15 , polyesters claim 15 , neopentyl esters claim 15 , polyvinyl ethers claim 15 , silicones claim 15 , silicate esters claim 15 , fluorinated compounds claim 15 , phosphate esters and mixtures thereof.181. A process to produce cooling comprising condensing a composition of claim and thereafter evaporating said composition in the vicinity of a body to be cooled.191. A process to produce heat comprising condensing the composition of claim in the vicinity of a body to be heated and thereafter evaporating said composition.20. A method for replacing R12 claim 15 , R134a claim 15 , R22 claim 15 , R404A claim 15 , R407A claim 15 , R407C claim 15 , R410A claim 15 , R422A claim 15 , R422B claim 15 , R422C claim 15 , R422D claim 15 , R438A claim 15 , R502 claim 15 , R507A claim 15 , R507B claim 15 , or R508 claim 15 , in a system that uses claim 15 , used or was designed to use R12 claim 15 , R134a claim 15 , R22 claim 15 , R404A claim 15 , R407A claim 15 , R407C claim 15 , R410A claim 15 , R422A claim 15 , R422B claim 15 , R422C claim 15 , R422D claim 15 , ...

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05-03-2020 дата публикации

COMPOUND COMPRISING POLYAMINE, ACIDIC AND BORON FUNCTIONALITIES AND ITS USE AS A LUBRICANT ADDITIVE

Номер: US20200071633A1
Принадлежит: TOTAL MARKETING SERVICES

A product resulting from the reaction of at least: a hydroxybenzoic acid, optionally substituted by a hydrocarbyl group, a boron compound, an amine component selected from a di-fatty-alkyl(ene) polyalkylamine composition including one or more polyalkylamines of formulae (I) or (II). A lubricant composition includes this product. Use of this product as a lubricant for two-stroke marine engines and four-stroke marine engines, more preferably two-stroke marine engines. 114-. (canceled)16. The product according to claim 15 , wherein the hydroxybenzoic acid claim 15 , optionally substituted by a hydrocarbyl group claim 15 , is selected from the group consisting of: mono-alk(en)yl substituted salicylic acids claim 15 , di-alk(en)yl substituted salicylic acids claim 15 , acid functionalized calixarenes and mixtures thereof.18. The product according to claim 17 , wherein X comprises from 12 to 40 carbon atoms.20. The product according to claim 19 , wherein the hydroxybenzoic acid compound is salicylic acid.21. The product according to claim 15 , wherein the boron compound is selected from the group consisting of: boric acid claim 15 , boric acid complexes claim 15 , boric oxide claim 15 , a trialkyl borate in which the alkyl groups comprise independently from 1 to 4 carbon atoms claim 15 , a C-Calkyl boronic acid claim 15 , a C-Cdialkyl boric acid claim 15 , a C-Caryl boric acid claim 15 , a C-Cdiaryl boric acid claim 15 , a C-Caralkyl boric acid claim 15 , a C-Cdiaralkyl boric acid claim 15 , and products deriving from these by substitution of an alkyl group by one or more alkoxy unit.22. The product according to claim 21 , wherein the boron compound is boric acid.23. The product according to claim 15 , wherein the polyalkylamine composition comprises at least 4% w/w of branched compounds of formula (I) or (II) claim 15 , with regards to the total weight of polyalkylamine compounds (I) and (II) in the composition claim 15 , branched compound signifying that:in formula (I), ...

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18-03-2021 дата публикации

Low Coefficient of Friction Ethylene-Based Compositions

Номер: US20210079311A1
Принадлежит:

The present disclosure provides a composition. The composition contains (A) an ethylene-based polymer; (B) a carboxylic-functionalized ethylene-based polymer; and (C) from 0.5 wt % to 5.0 wt % of a polydimethylsiloxane, based on the total weight of the composition. The present disclosure also provides a film with a layer containing said composition. 1. A composition comprising:(A) an ethylene-based polymer;(B) a carboxylic-functionalized ethylene-based polymer; and(C) from 0.5 wt % to 5.0 wt % of a polydimethylsiloxane, based on the total weight of the composition.2. The composition of claim 1 , wherein the carboxylic-functionalized ethylene-based polymer is a maleic anhydride-grafted ethylene-based polymer.3. The composition of claim 1 , wherein the carboxylic-functionalized ethylene-based polymer is a maleic anhydride-grafted linear low density polyethylene.4. The composition of claim 1 , wherein the polydimethylsiloxane has a Mn from 30 claim 1 ,000 g/mol to less than 50 claim 1 ,000 g/mol.5. The composition of claim 1 , wherein the ethylene-based polymer is an ethylene/α-olefin copolymer.6. The composition of claim 1 , wherein the composition comprises from 0.1 wt % to 5.0 wt % of the carboxylic-functionalized ethylene-based polymer claim 1 , based on the total weight of the composition.7. The composition of claim 1 , wherein the ethylene-based polymer comprises an ethylene plastomer/elastomer and a low density polyethylene (LDPE).8. A film comprising a layer comprising the composition of .9. The film of claim 1 , wherein the film is a multilayer film and a first layer of the multilayer film is the film of .10. The film of claim 9 , wherein the film comprises a second layer in contact with the first layer claim 9 , the second layer comprising a second ethylene-based polymer.11. The film of claim 9 , wherein the film comprises a second layer in contact with the first layer claim 9 , the second layer comprising a low density polyethylene (LDPE) and a linear low ...

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23-03-2017 дата публикации

ANTI-FRICTION LACQUER AND SLIDING BEARING LAMINATE COMPRISING SAME

Номер: US20170081522A1
Принадлежит:

The invention relates to an anti-friction coating () and an anti-friction coating composite () comprising at least 25 vol. % of a binder () and comprising fillers, which include zinc sulfide () and barium sulfate () and optionally additional fillers, wherein the volume ratio of barium sulfate () to zinc sulfide () is between 0.1 and 15.7, preferably between 0.8 and 4.88, and particularly preferably between 1.5 and 3.44. The anti-friction coating composite () comprises at least two anti-friction coatings () of different compositions. The invention further relates to sliding bearing layered composite materials comprising such coatings and use thereof in internal combustion engines. 1. An anti-friction coating comprising at least 25 vol. % of a binder and comprising fillers , which include zinc sulfide and barium sulfate , wherein the volume ratio of barium sulfate to zinc sulfide is between 0.1 and 15.7.2. The anti-friction coating according to claim 1 , wherein in total the zinc sulfide and the barium sulfate are contained in the total composition in a proportion of 2 to 35 vol. %.3. The anti-friction coating according to claim 28 , wherein in total the zinc sulfide claim 28 , the barium sulfate and the additional fillers are contained in the total composition in a proportion of at most 75 vol. %.4. The anti-friction coating according to claim 1 , wherein claim 1 , the zinc sulfide and the barium sulfate are present in powder form at a d50 value in the range of 0.1 μm to 1.0 μm.5. The anti-friction coating according to claim 1 , wherein the zinc sulfide and barium sulfate fraction is present in the form of lithopone.6. The anti-friction coating according to claim 1 , wherein the binder is selected from the group consisting of PAI claim 1 , PI claim 1 , epoxy resins claim 1 , PBI claim 1 , silicone resins and highly aromatic thermoplastics.7. The anti-friction coating according to claim 1 , wherein the coating has a thickness of 1 μm to 40 μm.8. The anti-friction ...

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12-03-2020 дата публикации

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

Номер: US20200078523A1
Принадлежит: SCHOTT AG

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 ...

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31-03-2022 дата публикации

GLIDE AGENT

Номер: US20220098445A1
Автор: Kummerer Robert
Принадлежит: GIGAGLIDE Surface Technologies GmbH

A lubricant for increasing the sliding capability of an item of sports equipment, in particular an item of winter sports equipment. The lubricant including an aqueous solution having an aqueous silicone emulsion, an emulsion of a polydimethylsiloxane, and a water-based formulation having methylisothiazolinone and/or benzoisothiazolinone. 1. A lubricant for increasing the sliding capability of an item of sports equipment , in particular an item of winter sports equipment , comprising an aqueous solution comprising:an aqueous silicone emulsion,an emulsion of a polydimethylsiloxane different from the aqueous silicone emulsion, anda water-based formulation having methylisothiazolinone and/or benzoisothiazolinone,wherein a mean particle size of the aqueous silicone emulsion is less than 100 nm, preferably less than 50 nm, wherein the averaging of the particle size is performed by determining the arithmetic mean.2. The lubricant according to claim 1 , wherein a mean particle size of the aqueous silicone emulsion is in a range of 15 nm to 35 nm claim 1 , preferably of 20 nm to 30 nm.3. (canceled)4. The lubricant according to claim 1 , wherein the freezing point of the aqueous solution is −5° C. or above claim 1 , preferably in the range of −1° C. to 0° C. claim 1 , particularly preferably in the range of −0.5° C. to 0° C.5. The lubricant according to claim 2 , wherein the freezing point of the aqueous solution is −5° C. or above claim 2 , preferably in the range of −1° C. to 0° C. claim 2 , particularly preferably in the range of −0.5° C. to 0° C.6. The lubricant according to claim 1 , wherein the lubricant is free of fluorocarbons.7. The lubricant according to claim 1 , wherein the lubricant is free of paraffin.89.-. (canceled)10. The lubricant according to claim 1 , wherein at least 50 wt. % claim 1 , preferably at least 85 wt. % of the aqueous solution consists of water.1115.-. (canceled)16. The lubricant according to claim 1 , wherein the lubricant is free of glycols. ...

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12-03-2020 дата публикации

LUBRICANT AND METHOD OF PREPARING THE SAME

Номер: US20200080019A1
Принадлежит:

A lubricant, including, by weight: 80-85 parts of a base oil; 1-2 parts of a methyl-silicone oil; 1-2 parts of polymethacrylate; 2-4 parts of pentaerythritol polyisobutylene succinate; 1-2 parts of di-n-butyl phosphite; 2-3 parts of butylhydroxytoluene; 2-4 parts of an ethylene-propylene copolymer; 1-2 parts of an alkenyl succinate; and 3-5 parts of copper nanoparticles. A method of preparing the lubricant includes: adding the base oil, the methyl-silicone oil, the polymethacrylate, the ethylene-propylene copolymer, the butylhydroxytoluene, the alkenyl succinate to a reactor, and stirring a resulting first mixture under normal temperature and pressure at 300-400 rpm for 3-4 hours, to yield a primary product; and adding the di-n-butyl phosphite, the pentaerythritol polyisobutylene succinate, and the copper nanoparticles to the primary product, and stirring a resulting second mixture at 150-250 rpm for 2-2.5 hours. 1. A lubricant , comprising , by weight:80-85 parts of a base oil;1-2 parts of a methyl-silicone oil;1-2 parts of polymethacrylate;2-4 parts of pentaerythritol polyisobutylene succinate;1-2 parts of di-n-butyl phosphite;2-3 parts of butylhydroxytoluene;2-4 parts of an ethylene-propylene copolymer;1-2 parts of an alkenyl succinate; and3-5 parts of copper nanoparticles.2. The lubricant of claim 1 , wherein the base oil comprises 70 wt. % of a synthetic oil and 30 wt. % of a trimethylolpropane ester claim 1 , and the synthetic oil is a polyalphaolefin (PAO).3. The lubricant of claim 2 , wherein the polyalphaolefin (PAO) is PAO6 claim 2 , PAO8 claim 2 , or PAO10.4. The lubricant of claim 1 , wherein the lubricant comprises claim 1 , by weight:80 parts of the base oil;2 parts of the methyl-silicone oil;1 part of the polymethacrylate;4 parts of the pentaerythritol polyisobutylene succinate;2 parts of the di-n-butyl phosphite;3 parts of the butylhydroxytoluene;4 parts of the ethylene-propylene copolymer;1 part of the alkenyl succinate; and3 parts of the copper ...

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29-03-2018 дата публикации

LUBRICANT COMPOSITIONS FOR DIRECT INJECTION ENGINE

Номер: US20180087001A1
Принадлежит: THE LUBRIZOL CORPORATION

The invention is directed to a method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine by supplying to the sump a lubricant composition which contains an oil of lubricating viscosity and a boron-containing ashless dispersant. The ashless dispersant may be selected from succinimide compounds prepared from aliphatic or aromatic amines. 1. A method for reducing low speed pre-ignition events in a spark-ignited direct injection internal combustion engine comprising supplying to the engine a lubricant composition comprising a base oil of lubricating viscosity and a boron-containing ashless dispersant.2. The method of claim 1 , wherein the engine is operated under a load with a brake mean effective pressure (BMEP) of greater than or equal to 10 bars.3. The method of claim 1 , wherein the engine is operated at speeds less than or equal to 3 claim 1 ,000 rpm.4. The method of claim 1 , wherein the engine is fueled with a liquid hydrocarbon fuel claim 1 , a liquid non-hydrocarbon fuel claim 1 , or mixtures thereof.5. The method of claim 4 , wherein the engine is fueled by natural gas claim 4 , liquefied petroleum gas (LPG) claim 4 , compressed natural gas (CNG) claim 4 , or mixtures thereof.6. The method of claim 1 , wherein the boron-containing ashless dispersant is a polyalkenyl dispersant derived from acylated polyisobutylene.7. The method of claim 1 , wherein the boron-containing ashless dispersant comprises a polyisobutylene succinimide compound.8. The method of claim 7 , wherein the polyisobutylene succinimide compound is prepared from an amine comprising one or more of aliphatic polyamines claim 7 , aromatic amines claim 7 , polyether amines claim 7 , and mixtures thereof.9. The method of claim 6 , wherein the acylated polyisobutylene is prepared by a chlorine process claim 6 , a thermal process claim 6 , a free radical polymerization process claim 6 , or combinations thereof.10. The method of claim 1 , wherein ...

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30-03-2017 дата публикации

Low Friction Squeak Free Assembly

Номер: US20170088787A1
Принадлежит:

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 an ultra-high molecular weight silicone having a kinematic viscosity of greater than 100,000 mms. When tested against itself, the composition of the present disclosure exhibits an extremely low dynamic coefficient of friction and produces no discernible noise over a very broad temperature range, such as from −20° C. to 60° C. 1. A low friction assembly comprising:a first sliding member in operative association with a second sliding member, the first sliding member and the second sliding member being configured to remain in contact and move relative to each other, each sliding member comprising a molded polymeric article, the first sliding member being made from a first polymer composition comprising a polyoxymethylene polymer combined with an ultrahigh molecular weight silicone, the second sliding member being made from a second polymer composition comprising a polyoxymethylene polymer combined with an ultrahigh molecular weight silicone, the ultrahigh molecular weight silicone being present in the first polymer composition and the second polymer composition such that when the polymer compositions are tested against each other, the compositions exhibit a dynamic coefficient of friction of less than about 0.06 when tested at a temperature of 60° C. and at a sliding speed of 8 mm/s.2. A low friction assembly as defined in claim 1 , wherein the first polymer composition and the second polymer composition have a noise rating of 3 or less when tested against each other within a temperature range from −20° C. to 60° C.3. A low friction assembly as defined in claim 1 , wherein the first polymer composition is the same as the second polymer composition.4. A low friction assembly as defined in claim 1 , wherein the ultrahigh molecular ...

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05-05-2022 дата публикации

LUBRICIOUS COATINGS FOR SKIS AND SNOWBOARDS AND RELATED SYSTEMS AND METHODS OF USE

Номер: US20220135841A1
Принадлежит:

Coatings, coating systems and coating methods for skis and snowboards are provided. The coatings may be lubricious coatings including one or more hydrophobic compounds, adhesion agents, shape memory polymers, free-radical initiators, and/or carrying solvents.

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05-05-2022 дата публикации

Lubricating Composition

Номер: US20220135899A1
Принадлежит: Infineum International Limited

A method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine comprising lubricating the crankcase of the engine with a composition comprising a combination of a molybdenum-containing additive and a boron-containing additive. Preferably, the composition comprises a calcium detergent providing a calcium content of at least 0.08 wt. %, based on the weight of the lubricating oil composition.

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01-04-2021 дата публикации

Lubricant compositions

Номер: US20210095220A1
Автор: Thomas Reddyhoff

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

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05-04-2018 дата публикации

HEAT-CONDUCTIVE SILICONE GREASE COMPOSITION

Номер: US20180094207A1
Автор: ICHIROKU Nobuhiro
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

A heat-conductive silicone grease composition comprising (A) an organopolysiloxane in an amount of 20 to 90 parts by mass, (B) a non-silicone-type organic compound in an amount of 80 to 10 parts by mass (wherein the total amount of the components (A) and (B) is 100 parts by mass) and (C) a heat-conductive inorganic filler having an average particle diameter of 0.5 to 100 μm in an amount of 200 to 2,000 parts by mass relative to 100 parts by mass of the total amount of the components (A) and (B), wherein the SP value of the non-silicone-type organic compound (B) is greater than that of the organopolysiloxane (A) (i.e., (B)>(A)), the value obtained by subtracting the SP value of the component (A) from the SP value of the component (B) is greater than 2, and the viscosity of the heat-conductive silicone grease composition is 50 to 1,000 Pa·s at 25° C. 3. The thermally conductive silicone grease composition of claim 2 , wherein the organopolysiloxane (A) is a hydrolyzable organopolysiloxane having three or six ORgroups (wherein Ris as defined above).4. The thermally conductive silicone grease composition of or claim 2 , wherein the non-silicone type organic compound (B) is an aromatic liquid compound with a functionality of 3 or less that has on the molecule an organic group selected from among epoxy claim 2 , phenolic hydroxyl and amino groups.5. The thermally conductive silicone grease composition of claim 4 , wherein the non-silicone type organic compound (B) is an aromatic liquid epoxy resin having a functionality of 3 or less.6. The thermally conductive silicone grease composition of claim 1 , wherein the thermally conductive inorganic filler (C) is one or a combination of two or more selected from the group consisting of aluminum claim 1 , silver claim 1 , copper claim 1 , nickel claim 1 , zinc oxide claim 1 , aluminum oxide claim 1 , silicon oxide claim 1 , magnesium oxide claim 1 , aluminum nitride claim 1 , boron nitride claim 1 , silicon nitride and metallic ...

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28-03-2019 дата публикации

LUBRICATING COMPOSITIONS

Номер: US20190093041A1
Принадлежит: Infineum International Limited

A method of reducing low-speed pre-ignition (LSPI) in a direct-injected spark-ignited internal combustion engine comprising lubricating the crankcase of the engine with a composition comprising a combination of a molybdenum-containing additive and a boron-containing additive. Preferably, the composition comprises a calcium detergent providing a calcium content of at least wt %, based on the weight of the lubricating oil composition. 1. A method of reducing low-speed pre-ignition (LSPI) events in a direct-injection spark-ignition internal combustion engine comprising lubricating the crankcase of the engine with a lubricating oil composition , the lubricating oil composition comprising a boron-containing additive and a molybdenum-containing additive , said lubricating oil composition having a molybdenum content of at least 150 ppm by weight , based on the weight of the lubricating oil composition , and having a boron content of at least 150 ppm by weight , based on the weight of the lubricating oil composition.2. A method according to claim 1 , wherein claim 1 , in operation claim 1 , the engine generates a brake mean effective pressure level of greater than 1 claim 1 ,500 kPa claim 1 , at engine speeds of from 1 claim 1 ,000 to 2 claim 1 ,500 rotations per minute (rpm).3. A method according to claim 1 , wherein the lubricating oil composition has a molybdenum content of from 150 ppm to 1500 ppm by weight claim 1 , based on the weight of the lubricating oil composition.4. A method according to claim 2 , wherein the lubricating oil composition has a molybdenum content of from 150 ppm to 1500 ppm by weight claim 2 , based on the weight of the lubricating oil composition.5. A method according to claim 1 , wherein the lubricating oil composition has a boron content of from 150 to 1500 ppm claim 1 , based on the weight of the lubricating oil composition.6. A method according to claim 2 , wherein the lubricating oil composition has a boron content of from 150 to 1500 ppm ...

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06-04-2017 дата публикации

VISCOSITY INDEX IMPROVER, LUBRICANT COMPOSITION, AND METHOD FOR PRODUCING LUBRICANT COMPOSITION

Номер: US20170096616A1
Автор: SUETSUGU Yoshiyuki
Принадлежит: IDEMITSU KOSAN CO., LTD.

A viscosity index improver including a comb-shaped polymer is provided. For a solution having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass %, a ratio of the storage modulus (G′) to the loss modulus (G″) of the solution measured at a measuring temperature of 70° C. is 0.40 or more. For a solution (α) at 25° C. having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass % and a solution (β) resulting from subjecting the solution (α) to heating to 100° C. at a prescribed temperature rise rate and then cooling to 25° C. at a prescribed cooling rate, a ratio of the storage modulus (G′) of the solution (β) to the storage modulus (G′) of the solution (α) measured at a measuring temperature of 25° C. is 2.0 or more. 1. A viscosity index improver , comprising a comb-shaped polymer and satisfying the following requirement:with respect to a solution having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass %, a ratio of a storage modulus G′ to a loss modulus G″ of the solution measured at a measuring temperature of 70° C., an angular frequency of 100 rad/s, and a strain of 20% is 0.40 or more.2. The viscosity index improver according to claim 1 , wherein the storage modulus G′ of the solution measured at a measuring temperature of 70° C. claim 1 , an angular frequency of 100 rad/s claim 1 , and a strain of 20% is 1.2×10Pa or more.3. A viscosity index improver claim 1 , comprising a comb-shaped polymer and satisfying the following requirement:with respect to a solution α at 25° C. having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass % and a solution β resulting from heating the solution α to 100° C. at a temperature rise rate of 0.2° C./s and then cooling to 25° C. at a cooling rate of 0.2° C./s, a ratio of a storage modulus G′ of the ...

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12-05-2022 дата публикации

TOOL FOR TREATING A SEAL WIPING SURFACE OF A SEALED CONNECTOR

Номер: US20220149575A1
Принадлежит:

A tool configured to apply a lubricant includes an insert disposed within a shroud of an electrical connector. The insert has a central cavity and passages extending from the central cavity to portals defined in an outer surface of the insert and a spray valve disposed within the insert configured to dispense a lubricant mist into the central cavity, through the passages to the portals, and onto a seal wiping surface of the electrical connector. 1. A tool configured for preparing a sealed connector system for connection , said sealed connector system comprising a male connector body , a female connector body defining a shroud configured to receive the male connector body , and a resilient seal arranged intermediate the male connector body and the female connector body , said tool comprising:an insert defining a central cavity and a plurality of passages extending from the central cavity to portals defined in an outer surface of the insert; anda spray valve disposed within the insert configured to dispense a lubricant mist into the central cavity and through the plurality of passages to the portals.2. The tool according to claim 1 , wherein the insert is configured to be disposed within the shroud.3. The tool according to claim 1 , wherein the portals are configured to deposit the lubricant mist onto a seal wiping surface of the shroud.4. The tool according to claim 3 , wherein the insert is configured to limit application of the lubricant mist to the seal wiping surface.5. The tool according to claim 1 , wherein the insert and the spray valve are configured to accommodate a perfluoropolyether based lubricant.6. The tool according to claim 1 , wherein the insert and the spray valve are configured to accommodate a phenylmethyl polysiloxane based lubricant.7. The tool according to claim 1 , wherein the resilient seal axially surrounds a portion of the male connector body.8. The tool according to claim 1 , wherein the spray value is connected to an air supply and a ...

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08-04-2021 дата публикации

DRY LUBRICANT FOR CONVEYING CONTAINERS

Номер: US20210102140A1
Принадлежит:

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 of lubricating a conveyor system comprising: (i) a conveyor belt;', '(ii) a lubricant pump; and', '(iii) a plurality of non-energized nozzles;, '(a) installing a lubricant dispensing system comprising(b) instructing an operator to use the lubricant dispensing system to intermittently apply a silicone lubricant to the conveyor belt, wherein the silicone lubricant forms a thin film on the conveyor belt having a thickness of less than about 2 mm.42. The method of claim 41 , wherein the conveyor belt is motor-driven.43. The method of claim 41 , wherein the conveyor belt is made of plastic or metal.44. The method of claim 41 , the silicone lubricant comprising about 0.1 to about 10 wt. % of a silicone emulsion and greater than 50 wt. % water.45. The method of claim 41 , wherein any additional lubricants in the silicone lubricant are present at less than 20 wt. %.46. The method of claim 41 , wherein the silicone lubricant is applied to the conveyor belt by spraying.47. The method of claim 41 , wherein the silicone lubricant 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 10:1.48. The method of claim 47 , wherein the ratio of not applied:applied time is at least 30:1.49. The method of claim 47 , wherein the ratio of not applied:applied time is at least 180:1.50. The method of claim 47 , wherein the ratio of not applied:applied time is at least ...

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23-04-2015 дата публикации

Intrinsic Low Friction Polyoxymethylene

Номер: US20150111796A1
Принадлежит:

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 ...

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29-04-2021 дата публикации

COMPOSITIONS, SYSTEM AND METHODS FOR INTRODUCING PAG LUBRICANT OR REFRIGERANT INTO AN AIR-CONDITIONING OR SYSTEM USING LOWER OR LOW GWP REFRIGERANT OR REFRIGERANT BLENDS

Номер: US20210122990A1
Принадлежит: THE CHEMOURS COMPANY FC, LLC

Compositions, systems and methods for introducing lubricants, and additives, that are designed to work with environmentally friendly refrigerants into vehicle heat management systems including passenger compartment air conditioning (A/C) systems are disclosed. Methods for charging lubricants and specific additives using environmentally desirable (low GWP) refrigerant or refrigerant blend compositions into an environmentally friendly system, such as a system that uses HFO-1234yf, are also disclosed. 1. A composition comprising about 50 to about 80 wt % polyalkylene glycol (PAG) lubricant and about 20 to about 50 wt % of a refrigerant , wherein the refrigerant exhibits a global warming potential (GWP) of less than about 100 wherein the refrigerant comprises HFO-1234yf and wherein the lubricant is miscible with the refrigerant and the lubricant comprises at least one member selected from the group consisting of acid scavengers , performance enhancers and flame suppressants.2. A composition comprising about 1 to about 15 wt % polyalkylene glycol (PAG) lubricant and about 85 to about 99 wt % of a refrigerant , wherein the refrigerant exhibits a global warming potential (GWP) of less than about 100 wherein the refrigerant comprises HFO-1234yf and wherein the lubricant is miscible with the refrigerant3. The composition of further comprising about 1 to about 5 wt % acid scavengers.4. The composition of claim 3 , wherein the acid scavengers comprise at least one member selected from the group consisting of hexamethyldisiloxane claim 3 , polydimethylsiloxane claim 3 , polymethylphenylsiloxane claim 3 , dodecamethylpentasiloxane claim 3 , decamethylcyclo-pentasiloxane claim 3 , decamethyltetrasiloxane claim 3 , or octamethyltrisiloxane.5. The composition of further comprising about 1 to about 5 wt % performance enhancers.6. The composition of further comprising about 1 to about 10 wt % of flame suppressants.7. A container comprising the composition of configured to deliver the ...

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29-04-2021 дата публикации

THERMOPLASTIC COMPOSITION

Номер: US20210122993A1
Автор: HESSE DETLEV
Принадлежит:

Lubricant grease compositions comprising a silicone base stock oil having a kinematic viscosity of from 20,000 to 100,000 mm/s at 25° C., a metal salt of a fatty acid wherein the metal is selected from the group of lithium, calcium, aluminium, barium titanium, zinc, magnesium and/or sodium; and a suitable anti-wear additive. 1. A lubricating grease composition comprising{'sup': '2', '(a) 65 to 89.9% by weight of a silicone base stock oil having a kinematic viscosity of from 20,000 to 100,000 mm/s at 25° C.;'}(b) 10 to 35% by weight of a metal salt of a fatty acid wherein the metal is selected from the group of lithium, calcium, aluminium, barium titanium, zinc, magnesium and/or sodium; and(c) 0.1 to 2% by weight of a suitable anti-wear additive.2. A lubricant composition according to where (a) is selected from a silicone lubricant base stock oil of Group V claim 1 , as per the API classification of lubricant base oils or mixtures or greases thereof.3. A lubricant composition according to where (a) is selected from a silicone lubricant base stock oil trialkyl terminated polydiethylsiloxane claim 1 , trialkyl silyl terminated polydimethylsiloxane claim 1 , trialkyl silyl terminated polydimethylmethylalkylsiloxane claim 1 , or trialkyl silyl terminated polymethylalkylsiloxane.4. A lubricant composition according to wherein component (b) comprises one or more of the lithium monocarboxylic fatty acids or lithium hydroxymonocarboxylic fatty acids claim 1 , calcium monocarboxylic fatty acids or calcium hydroxymonocarboxylic fatty acids claim 1 , aluminium monocarboxylic fatty acids or aluminium hydroxymonocarboxylic fatty acids barium monocarboxylic fatty acids or barium hydroxymonocarboxylic fatty acids and titanium monocarboxylic fatty acids or titanium hydroxymonocarboxylic fatty acids zinc monocarboxylic fatty acids or zinc hydroxymonocarboxylic fatty acids claim 1 , magnesium monocarboxylic fatty acids or magnesium hydroxymonocarboxylic fatty acids and/or sodium ...

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10-07-2014 дата публикации

Lubricant composition for internal combustion engine oil

Номер: US20140194329A1
Принадлежит: Idemitsu Kosan Co Ltd

The present invention provides a lubricating oil composition for internal combustion engines which includes a boronated imide-based dispersant, or the boronated imide-based dispersant and a non-boronated imide-based dispersant, in which a boron content (B % by mass) derived from the boronated imide-based dispersant and a nitrogen content (N % by mass) derived from the boronated imide-based dispersant or derived from the boronated imide-based dispersant and the non-boronated imide-based dispersant satisfy the following formula (I): N≧B+0.05 (I); and a phosphorus content (P % by mass) and a content of a metal component (M % by mass) derived from a metallic detergent on the basis of a total amount of the composition satisfy any of the following requirements A to C: A: P<0.03 and M<0.05; B: P<0.03 and 0.05≦M≦0.12; and C: 0.03≦P≦0.06 and M<0.05. The lubricating oil composition for internal combustion engines can be considerably reduced in content of ZnDTP having a large phosphorus content or a metallic detergent while maintaining a good wear resistance for aluminum materials.

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27-04-2017 дата публикации

METHOD FOR MANUFACTURING FLUORINE-BASED RESIN COATING POWDER AND ELECTRODE MATERIAL

Номер: US20170114227A1
Автор: Jeong Hae Won
Принадлежит:

A method for manufacturing a fluorine-based resin coating powder includes a silver powder preparing step of preparing a silver powder having a predetermined grain size, a silver powder solution mixing step of adding the silver powder to an ethanol solution, followed by mixing, a PH adjustment solution preparing step of preparing a solution having a pH that is adjusted to a set PH, a fluorine silane preparing step of preparing fluorine silane, and a fluorine-based resin coating silver powder manufacturing step of manufacturing a fluorine-based resin coating silver powder coated with the fluorine-based resin at a set thickness by adding the silver powder mixed with the ethanol solution in the silver powder solution mixing step and the fluorine silane prepared in the fluorine silane preparing step to the solution having the pH that is adjusted to the PH set in the PH adjustment solution preparing step, followed by mixing. 1. A method for manufacturing a fluorine-based resin coating powder , the method comprising:a silver powder preparing step of preparing a silver powder having a predetermined grain size;a silver powder solution mixing step of adding the silver powder to an ethanol solution, followed by mixing;a PH adjustment solution preparing step of preparing a solution having a pH that is adjusted to a set PH;a fluorine silane preparing step of preparing fluorine silane; anda fluorine-based resin coating silver powder manufacturing step of manufacturing a fluorine-based resin coating silver powder coated with the fluorine-based resin at a set thickness by adding the silver powder mixed with the ethanol solution in the silver powder solution mixing step and the fluorine silane prepared in the fluorine silane preparing step to the solution having the pH that is adjusted to the PH set in the PH adjustment solution preparing step, followed by mixing.2. The method of claim 1 , wherein in the silver powder preparing step claim 1 , the grain size of the silver powder is ...

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13-05-2021 дата публикации

AMINE-FUNCTIONALIZED ORGANOSILANE/FATTY ACID COMBINATION SYSTEMS AS STAIN/CORROSION INHIBITORS FOR THE APPLICATION ON ALUMINUM AND ITS ALLOYS

Номер: US20210139715A1
Автор: ASCENZO Ronald, Kim Hoon
Принадлежит:

Provided herein is a composition for treating aluminum containing surfaces, wherein the composition includes a reaction product of at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and at least one fatty acid, wherein the molar ratio of the amino group/s of the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and of the at least one fatty acid is 1.2:1 to 1:2, and wherein the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof is linked to the at least one fatty acid by at least one carboxylic acid/amine salt bond and/or at least one amide bond. 1. A method for producing a composition for treating aluminum containing surfaces , the composition comprising a reaction product of at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and at least one fatty acid , wherein the molar ratio of the amino groups of the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and of the at least one fatty acid is 1.2:1 to 1:2 , wherein the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof is linked to the at least one fatty acid by at least one carboxylic acid/amine salt bond and by at least one amide bond , wherein the at least one fatty acid has at least 20 carbon atoms , wherein the at least one fatty acid has a hydrocarbon tail exhibiting at least one C═C double bond , and wherein at least about 5 mol-% , to about 15 mol-% of the linkages (detected by FT-IR spectroscopy) between the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and the at least one fatty acid are amide bonds; wherein the method comprisesi) mixing the at least one amine-functionalized organosilane and at least one fatty acid in a molar ratio of 1.2:1 to 1:2 in an essentially water-free medium;ii) subjecting the mixture, under stirring for at least 15 minutes, to a ...

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13-05-2021 дата публикации

COMPOSITIONS, SYSTEM AND METHODS FOR INTRODUCING POE LUBRICANT INTO AN ELECTRIC (HEV, PHEV, EV) AUTOMOTIVE AIR-CONDITIONING/HEATING SYSTEM OR STATIONARY AIR-CONDITIONING/HEATING SYSTEM OR STATIONARY REFRIGERATION SYSTEM USING LOWER OR LOW GWP REFRIGERANT OR REFRIGERANT BLENDS

Номер: US20210139804A1
Принадлежит: THE CHEMOURS COMPANY FC, LLC

Compositions, systems and methods for introducing lubricants, and additives, that are designed to work with environmentally friendly refrigerants into vehicle heat management systems including passenger compartment air conditioning (A/C) systems are disclosed. Methods for charging lubricants and specific additives using environmentally desirable (low GWP) refrigerant or refrigerant blend compositions into an environmentally friendly system, such as a system that uses HFO-1234yf, are also disclosed. 150802050. A composition comprising about to about wt % polyol ester (POE) lubricant and about to about wt % refrigerant , wherein the refrigerant exhibits a global warming potential (GWP) of less than about 150 wherein the lubricant is miscible with the refrigerant at over a temperature range of −18° C. to 37° C. at a pressure of 160 kPa to 945 kPa within a sealed container when measured using ASHRAE 97:2007 and wherein the lubricant comprises less than 50 ppm water when measured in accordance with ASTM E284.2. The composition of further comprising about 1 to about 5 wt % acid scavengers.3. The composition of claim 2 , wherein the acid scavengers comprise at least one member selected from the group consisting of hexamethyldisiloxane claim 2 , polydimethylsiloxane claim 2 , polymethylphenylsiloxane claim 2 , dodecamethylpentasiloxane claim 2 , decamethylcyclo-pentasiloxane claim 2 , decamethyltetrasiloxane claim 2 , or octamethyltrisiloxane.4. The composition of further comprising about 1 to about 5 wt % performance enhancers.5. The composition of further comprising about 1 to about 10 wt % of flame suppressants.6. A container comprising the composition of configured to deliver the composition into a vehicle air conditioning system.7. The container of claim 6 , wherein the pressure within the container is 160 kPa to 945 kPa.8. A method for delivering a POE lubricant into a vehicle air conditioning system comprising connecting a container comprising the composition of to ...

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09-04-2020 дата публикации

GREASE COMPOSITION AND ROLLING BEARING

Номер: US20200109344A1
Принадлежит: JTEKT CORPORATION

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 ...

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05-05-2016 дата публикации

Liquid-Infused Surfaces Featuring Reduced Drag Characteristics, and Methods for Fabricating the Same

Номер: US20160122677A1
Принадлежит: PRINCETON UNIVERSITY

In a broad aspect of the invention there are provided liquid infused surfaces that feature drag reducing characteristics. In a further broad aspect, the present invention provides methods for designing and fabricating liquid infused surfaces that feature drag reducing characteristics. In a yet further broad aspect the present invention provides methods for increasing the operating efficiency of systems in which a flowing bulk fluid is in contact with a patterned surface, the increased operating efficiency specifically being realized from a reduction of the drag forces due to the bulk fluid flowing over the patterned surface.

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04-05-2017 дата публикации

DEFOAMING AGENT AND ASSOCIATED METHODS OF USE

Номер: US20170121629A1
Автор: SONG Wensi, XU Zhou
Принадлежит:

Defoaming agents comprising a silicone oil and silica particulates, lubricating oil compositions comprising the defoaming agent, methods of lubrication using a lubricating oil composition comprising the defoaming agent, and methods of reducing the foaming tendency/stability and/or improving the air release rates of non-aqueous fluids, such as lubricant oils, are provided. 1. A lubricating oil composition comprising:a base oil; anda defoaming agent comprising (a) a silicone oil and (b) silica particulates.2. The lubricating oil composition of wherein the silicone oil comprises polydimethylsiloxane.3. The lubricating oil composition of wherein the silica particulates comprise hydrophobic fumed silica.4. The lubricating oil composition of wherein the silicone oil comprises polydimethylsiloxane and the silica particulates comprise hydrophobic fumed silica.5. The lubricating oil composition of wherein the silicone oil is present in the lubricating oil composition at a concentration of from about 0.1 to 500 ppm.6. The lubricating oil composition of wherein the silica particulates are present in the lubricating oil composition at a concentration of from about 0.1 to 500 ppm.7. The lubricating oil composition of wherein the silica particulates have a particle size of from about 1 to 1000 nm.8. The lubricating oil composition of wherein the base oil is present in an amount of 50 to more than 99.99 wt. % claim 1 , based on the total weight of the lubricating oil composition.9. A method comprising:applying a lubricating oil composition comprising a base oil; and a defoaming agent comprising (a) a silicone oil and (b) silica particulates to a surface in relative movement to another surface.10. The method of wherein the surface is a surface of a rotating member or a sliding member in a vehicle or industrial machine.11. The method of wherein the surface is in an engine claim 9 , a gear mechanism claim 9 , a speed-change gearbox claim 9 , a bearing claim 9 , a hydraulic apparatus ...

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25-04-2019 дата публикации

GREASE COMPOSITION AND SLIDING MEMBER

Номер: US20190119595A1
Принадлежит:

A grease composition is disclosed. The grease composition comprises: 100 parts by mass of (A) an aryl group-containing polyorganosiloxane; 1 to 50 parts by mass of (B) an acrylic block copolymer; and (C) solid particles. Component (B) has a weight average molecular weight of from 10,000 to 1,000,000 and a molecular weight distribution [ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn)] of 1.5 or less. Component (B) is present in an amount of from 1 to 40 mass % of the overall grease composition. The grease composition has excellent damping characteristics, hardly any oil separation (even at high temperatures), excellent lubricating performance, and an ability to reduce noise generated by a mechanical device when applied to a noise-generating site of the mechanical device. Sliding members, etc., to which this grease composition has been applied, are also disclosed. 1. A grease composition comprising:100 parts by mass of (A) an aryl group-containing polyorganosiloxane; and1 to 50 parts by mass of (B) an acrylic block copolymer having a weight average molecular weight of from 10,000 to 1,000,000 and a molecular weight distribution of 1.5 or less, with the molecular weight distribution being the ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn);wherein component (B) is present in an amount of from 1 to 40 mass % of the overall grease composition.2. A grease composition according to claim 1 , wherein component (A) is an aryl group-containing polyorganosiloxane having at least 10 mol % phenyl groups among all monovalent functional groups bound to silicon atoms.3. A grease composition according to claim 1 , further comprising from 1 to 200 parts by mass of (C) solid particles.4. A grease composition according to claim 1 , wherein component (A) also has in the molecule a fluoroalkyl group represented by —(CH)—Rwhere Ris a perfluoroalkyl group having from 1 to 12 carbon atoms and x is a ...

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10-05-2018 дата публикации

CONVEYOR LUBRICANTS INCLUDING EMULSIONS AND METHODS EMPLOYING THEM

Номер: US20180127679A1
Принадлежит:

The present disclosure relates to conveyor lubricant compositions including an emulsion. The present disclosure also relates to methods of employing such lubricant compositions. In an embodiment, the methods include applying the present lubricant composition to a conveyor with a non-energized nozzle. In an embodiment, the methods include applying the present lubricant composition in a “semi-dry” mode. 1. A method for lubricating the passage of a container along a conveyor , comprising: (a) a water insoluble oil with viscosity greater than about 300 centipoise;', '(b) about 0 to about 0.35 wt-% emulsifier; and', '(c) about 99.3 to about 99.99 wt-% water, inclusive of any hydrophilic diluents;, 'applying a lubricating emulsion to at least a portion of a container-contacting surface of the conveyor or to at least a portion of a conveyor-contacting surface of the container, the lubricating emulsion comprisingwherein the lubricating emulsion is applied for a period of time and not applied for a period of time and the ratio of not applied: applied time is between 2:1 and 32:1.2. The method of claim 1 , wherein the water insoluble oil comprises from about 0.01% to about 0.35% of a weakly amphipathic compound.3. The method of claim 1 , wherein the water insoluble oil has a viscosity of at least about 300 centipoise when measured with a parallel plate rheometer with 20 mm plate diameter and 0.25 mm plate separation at an integrated average shear rate of 5.9 sec.4. The method of claim 1 , wherein the water insoluble oil is selected from the group consisting of water insoluble unacidified fatty amine compounds claim 1 , water insoluble phosphate ester compounds claim 1 , and mixtures thereof.5. The method of claim 1 , wherein the water insoluble oil is present from about 0.01 to about 0.35 wt. %.6. The method of claim 1 , wherein the water insoluble oil is emulsified with the emulsifier claim 1 , and the resulting emulsion has a particle size from about 0.05 to about 5 microns ...

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17-05-2018 дата публикации

LUBRICANT FOR CONVEYING CONTAINERS

Номер: US20180134984A1
Принадлежит:

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 ...

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26-05-2016 дата публикации

Complex polyester composition, lubricant composition, lubricant, and production method for complex polyester composition

Номер: US20160145525A1
Принадлежит: Fujifilm Corp

An object of the present invention is to provide a lubricant which has excellent lubrication performance and is able to exhibit excellent lubrication performance even when under extreme pressure conditions. The present invention relates to a complex polyester composition containing polyester obtained by condensing polyhydric alcohol having at least two hydroxyl groups, a dicarboxylic acid having 44 carbon atoms, and monohydric alcohol. Further, the present invention relates to a lubricant composition containing the complex polyester composition, and a lubricant and a production method for a complex polyester composition.

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10-06-2021 дата публикации

Hybrid Grease with Low Friction Coefficients and High Wearing Protection

Номер: US20210171856A1
Принадлежит:

A hybrid grease is provided having low coefficients of friction and high wear protection which is employable over a wide temperature range. The hybrid grease includes a combination of a grease based on a silicone oil in conjunction with a grease based on synthetic hydrocarbon oils, mineral oils or polyglycols. The hybrid grease may especially be used to lubricate joints in vehicle parts based on plastic-steel pairings. 1. A hybrid grease comprising(A) 10% to 50% by weight of a grease based on a synthetic hydrocarbon oil, mineral oil or polyglycol containing 50% to 90% by weight of base oil selected from synthetic hydrocarbon oil, PAO, mineral oil and polyglycol, 10% to 25% by weight of thickener, 0% to 10% by weight of additives, and(B) 50 to 90% by weight of a silicone grease containing 70% to 90% by weight of silicone oil selected from the group consisting of polydimethylsiloxane, polyphenylmethylsiloxane and mixtures thereof, 5% to 30% by weight of thickener and 0% to 10% by weight of additives.2. The hybrid grease as claimed in further comprising(A) 10% to 20% by weight of a grease based on a synthetic hydrocarbon oil, mineral oil or polyglycol containing 70% to 80% by weight of base oil selected from synthetic hydrocarbon oil, PAO, mineral oil and polyglycol, 10% to 20% by weight of thickener, 1% to 7% by weight of additives, and(B) 80 to 90% by weight of a silicone grease containing 70% to 80% by weight of silicone oil selected from the group consisting of polydimethylsiloxane, polyphenylmethylsiloxane and mixtures thereof, 10% to 30% by weight of thickener and 1% to 10% by weight of additives.3. The hybrid grease as claimed in claim 1 , further comprising in the component (A) 0% to 50% by weight of a solid lubricant.4. The hybrid grease as claimed in any claim 1 , wherein the synthetic hydrocarbon oil is an oil selected from the group consisting of PAO claim 1 , mixtures of PAO and olefin copolymers claim 1 , mixtures of PAO and polyisobutylene.5. A method of ...

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14-08-2014 дата публикации

AQUEOUS SURFACE-TREATING AGENT

Номер: US20140228261A1
Принадлежит:

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., ...

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02-06-2016 дата публикации

Lubricant oil composition for internal combustion engine

Номер: US20160152920A1
Принадлежит: JX Nippon Oil and Energy Corp

A lubricant oil composition for internal combustion engines with which further reduction of friction can be achieved to provide excellent fuel efficiency is provided. (A) A lubricant oil base oil having a kinematic viscosity at 100° C. of 2.0 to 5.0 mm 2 /s; (B) a molybdenum-based friction modifier in an amount of 0.005 to 0.2 mass % in terms of the mass of the molybdenum relative to the total mass of the composition; (C) a metal-based detergent in an amount of 0.01 to 1 mass % in terms of the mass of the metal relative to the total mass of the composition; and (D) 0.01 to 10 mass % of at least one compound selected from amino acids having a C 6-24 alkyl, alkenyl, or acyl group, and/or derivatives of the amino acids.

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07-05-2020 дата публикации

TACTILE FILM, METHOD OF PRODUCING SAME, MOLDED ARTICLE, AND METHOD OF IMPROVING FINGER SLIDABILITY

Номер: US20200140774A1
Автор: HAYASHI Masaki
Принадлежит: Daicel Corporation

Prepared is a film including at least one surface having a friction property having A of not less than 0.01 and B of not greater than 0.6, A and B being values obtained from friction testing, wherein 1. A film comprising at least one surface having a friction property having A of not less than 0.01 and B of not greater than 0.6 , A and B being values obtained from friction testing , whereinthe friction testing includes measuring relative dynamic friction coefficients μ of the at least one surface at various moving speeds v (mm/s) of a contact probe, creating a plot of log(v), log(v) being a common logarithm of the moving speed, on a horizontal axis and μ on a vertical axis and performing linear fitting to obtain a straight line, andA is a slope of the straight line and B is an intercept of the straight line.2. The film according to claim 1 , wherein the film comprises a tactile layer formed of a cured product of a curable composition including a curable resin claim 1 , and the tactile layer is disposed on an outermost layer; and the surface of the tactile layer have a friction property having a slope A of not less than 0.015 and an intercept B of not greater than 0.15.3. The film according to claim 2 , wherein the curable resin comprises at least one selected from the group consisting of a (meth)acrylic polymer including a polymerizable group claim 2 , a urethane (meth)acrylate claim 2 , and a silicone (meth)acrylate.4. The film according to claim 2 , wherein the curable composition further comprises a cellulose ester.5. The film according to claim 2 , wherein the curable composition comprises a (meth)acrylic polymer including a polymerizable group claim 2 , a urethane (meth)acrylate claim 2 , a silicone (meth)acrylate claim 2 , and a cellulose ester.6. The film according to claim 2 , wherein the curable composition comprises no fine particles.7. The film according to claim 2 , wherein the tactile layer is laminated on a substrate layer formed of a transparent resin ...

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17-06-2021 дата публикации

HEAT TRANSFER METHODS, SYSTEMS AND COMPOSITIONS

Номер: US20210179907A1
Принадлежит: HONEYWELL INTERNATIONAL INC.

Disclosed are refrigerants comprising at least about 97% by weight of a blend of three compounds, said blend consisting of: 130-. (canceled)31. A refrigerant comprising at least about 99.5% by weight of a blend of four compounds , said blend consisting of:from about 46% by weight to less than 48% by weight difluoromethane (HFC-32),from about 11% by weight to about 12% by weight pentafluoroethane (HFC-125),from about 34% by weight to about 36% by weight trifluoroiodomethane (CF3I) andfrom about 5% by weight to about 7% by weight 2,3,3,3-tetrafluoropropene (HF0-1234yf), wherein the percentages are based on the total weight of the four compounds in the blend and wherein said refrigerant composition has: (a) a HFC32+HF01234yf:CF3I+HFC125 ratio of from greater than about 1:1 to less than 1.2:1; and (b) an evaporator glide of less than 2° C.32. The refrigerant of wherein said blend consists of:47% by weight difluoromethane (HFC-32),12% by weight pentafluoroethane (HFC-125),35% by weight trifluoroiodomethane (CF3I) and6% by weight 2,3,3,3-tetrafluoropropene (HF0-1234yf),wherein the percentages are based on the total weight of the four compounds in the blend.33. The refrigerant of wherein the refrigerant consists of said blend.34. The refrigerant of wherein the weight ratio of (HFC-32+HFO-1234yf):(CF3I+HFC-125) is from greater than about 1.1:1 to about 1.18:1.35. The refrigerant of wherein the weight ratio of HFC-32:HFC-125 from greater than 3.5:1 to about 4:1 claim 31 , preferably from about 3.8:1 to about 3.9:1.1.36. A heat transfer composition comprising the refrigerant of .37. The heat transfer composition of further comprising a stabilizer selected from a diene based compound claim 36 , or a diene based compound and a phosphorous compound claim 36 , and/or a nitrogen compound and/or a phenolcompound.38. The heat transfer composition of wherein the stabilizer composition comprises a diene based compound.39. The heat transfer composition of wherein the stabilizer ...

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17-06-2021 дата публикации

Lubricating oil composition and lubricating agent using same

Номер: US20210179959A1
Принадлежит: Moresco Corp

An aspect of the present invention relates to a lubricant composition containing at least: (A) 50 to 80 mass % of silicone oil represented by formula (1) below, and having a mass-average molecular weight of 900 to 4000, a ratio (C/Si ratio) of carbon to silicon of 3.03 or higher in the structure, and a viscosity index (VI) of 300 or higher; (B) 10 to 49 mass % of hydrocarbon-based lubricant; and (C) 1 to 10 mass % of antioxidant.

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01-06-2017 дата публикации

COMPOSITIONS CONTAINING FLUORINE SUBSTITUTED OLEFINS AND METHODS AND SYSTEMS USING SAME

Номер: US20170152422A1
Принадлежит:

Disclosed are the use of fluorine substituted olefins, including tetra- and penta-fluoropropenes, in a variety of applications, including in methods of depositing catalyst on a solid support, methods of sterilizing articles, cleaning methods and compositions, methods of applying medicaments, fire extinguishing/suppression compositions and methods, flavor formulations, fragrance formulations and inflating agents. 1. A method of transferring heat to , or from , a fluid or body , said method comprising contacting said fluid or body with a heat transfer composition comprising a refrigerant comprising HFO-1234ze , wherein the HFO-1234ze is at least 90% by weight transHFO-1234ze.2. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of 5% to 99% by weight.3. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of at least about 50% by weight.4. The method of wherein the heat transfer composition comprises HFO-1234ze in an amount of at least about 70% by weight.5. The method of wherein the HFO-1234ze is at least 95% by weight transHFO-1234ze.6. The method of wherein the HFO-1234ze is at least 97% by weight transHFO-1234ze.7. The method of wherein the HFO-1234ze is no more than 10% by weight cisHFO-1234ze.8. The method of wherein the HFO-1234ze is no more than 5% by weight cisHFO-1234ze.9. The method of wherein the HFO-1234ze is no more than 3% by weight cisHFO-1234ze.10. The method of comprising the steps of (1) evaporating the heat transfer composition to produce refrigerant vapor claim 1 , (2) compressing the refrigerant vapor to produce compressed refrigerant vapor claim 1 , (3) condensing the compressed refrigerant vapor to form refrigerant liquid claim 1 , and (4) reducing the pressure of the refrigerant liquid.11. The method of wherein the contacting occurs in an automobile air conditioning system.12. The method of wherein the contacting occurs in a commercial refrigeration system.13. The method of ...

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24-06-2021 дата публикации

LUBRICATING OIL COMPOSITIONS AND METHODS OF USE

Номер: US20210189283A1
Автор: HOLT David G.L., WANG Lin
Принадлежит:

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 ...

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16-06-2016 дата публикации

Giant electrorheological fluid surfactant additives

Номер: US20160168501A1

GER fluids are improved by the addition of a polar molecule additive. By addition of a polar molecule additive, yield stresses under electric field are improved by over 50% while the current density is reduced to less than a quarter of the original GER. The reversible response time still remains the same, and the sedimentation stability is greatly enhanced. The zero field viscosity of the modified GER fluid remains the same as that of the original GER fluid without the additive. The improved GER characteristics improve general functionality as an electrical-mechanical interface, attendant with applications to car clutches, fluid brakes, and vehicle shock absorbers.

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15-06-2017 дата публикации

DRY LUBRICANT FOR CONVEYING CONTAINERS

Номер: US20170166833A1
Принадлежит:

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 ...

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21-05-2020 дата публикации

LENS OIL HAVING A NARROW MOLECULAR WEIGHT DISTRIBUTION FOR INTRAOCULAR LENS DEVICES

Номер: US20200157124A1
Автор: Silvestrini Thomas
Принадлежит:

A silicone oil having a mean molecular weight average greater than about 20,000 Daltons, with no more than about 3% to about 4% of the total silicone oil by weight being comprised of components having a molecular weight less than about 15,000 Daltons. In some embodiments, the silicone oil is used in intraocular lens devices. 122.-. (canceled)23. An intraocular lens device , comprising:an anterior region;a posterior region;a cavity region defined between the anterior and posterior regions; anda fluid comprising a silicone oil disposed in the cavity region wherein the silicone oil comprises molecules having a molecular weight greater than about 2,000 Daltons, and wherein the silicone oil comprises a copolymer comprising diphenylsiloxane and dimethylsiloxane units.24. The intraocular lens device of claim 23 , wherein the silicone oil comprises molecules having a molecular weight greater than about 3 claim 23 ,000 Daltons.25. The intraocular lens device of claim 23 , wherein the silicone oil comprises molecules having a molecular weight greater than about 5 claim 23 ,000 Daltons.26. The intraocular lens device of claim 23 , wherein the silicone oil has a refractive index of about 1.40 to about 1.60.27. The intraocular lens device of claim 23 , wherein the silicone oil has a refractive index of about 1.49.28. The intraocular lens device of claim 23 , wherein the silicone oil has a mean molecular weight in the range of about 20 claim 23 ,000 Daltons to about 30 claim 23 ,000 Daltons claim 23 ,29. The intraocular lens device of claim 23 , wherein the silicone oil comprises about 20 mole % to about 25 mole % of diphenylsiloxane and about 80 mole % to about 75 mole % of dimethylsiloxane.30. The intraocular lens device of claim 23 , wherein the copolymer further comprises substituted or unsubstituted dialkylsiloxane units.31. The intraocular lens device of claim 23 , wherein the anterior portion comprises a refractive optical element claim 23 , and wherein at least a portion ...

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21-05-2020 дата публикации

LUBRICANT COMPOSITION

Номер: US20200157454A1
Принадлежит:

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. ...

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21-05-2020 дата публикации

LUBRICOUS SILICONE

Номер: US20200157455A1
Принадлежит:

A method for making an insertable or implantable medical device including a lubricous coating on a silicone substrate includes treating the silicone substrate with an atmospheric plasma at about atmospheric pressure, the atmospheric plasma formed from a noble gas; applying a solution directly to the treated silicone substrate, the solution including a thermoplastic polyurethane; and heating the silicone substrate and the applied solution to form the lubricous coating on the silicone substrate. 1. A method for making an insertable or implantable medical device including a lubricous coating on a silicone substrate , the method comprising:treating the silicone substrate with an atmospheric plasma at about atmospheric pressure, the atmospheric plasma formed from a gas consisting at least 98% by volume of a noble gas;applying a solution directly to the treated silicone substrate, the solution including a thermoplastic polyurethane; andheating the silicone substrate and the applied solution to form the lubricous coating on the silicone substrate.2. The method of claim 1 , wherein the noble gas includes at least one selected from the group of argon and helium.3. The method of claim 1 , wherein the atmospheric plasma is a flow of plasma directed toward the silicone substrate.4. The method of claim 1 , wherein the solution further includes at least one solvent selected from the group of dimethylformamide claim 1 , dimethylacetamide tetrahydrofuran claim 1 , trichloroethane claim 1 , methylene chloride claim 1 , cyclohexanone claim 1 , cyclopentanone claim 1 , dioxane claim 1 , chloroform claim 1 , tetrahydrofurfuryl alcohol claim 1 , and benzyl alcohol.5. The method of claim 1 , wherein the thermoplastic polyurethane includes at least one selected from the group of polycarbonate polyurethane claim 1 , silicone polycarbonate polyurethane claim 1 , a polyether polyurethane claim 1 , and a silicone polyether urethane.6. The method of claim 5 , wherein the thermoplastic ...

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21-05-2020 дата публикации

HYDROGENATED POLYMERS WITH A RADIAL STRUCTURE HAVING A CORE BASED ON CALIXARENES AND USE THEREOF IN LUBRICANT COMPOSITIONS

Номер: US20200157456A1
Принадлежит:

Hydrogenated polymers with a radial structure having a core made up of calixarenes of the general formula (I), to the core of which is linked a number P of hydrogenated linear polymer segments selected from: —hydrogenated homopolymers or co-polymers of conjugated dienes; or —hydrogenated co-polymers of said conjugated dienes and monoalkenyl arenes, and —mixtures thereof said formula (I) in which: —R, R, Rand Rare independently selected from hydrogen; a group containing carbon and hydrogen; a group also containing heteroatoms in addition to carbon and hydrogen; a group also containing silicon in addition to carbon, hydrogen and heteroatoms; —one of the two substituents Rand Ris hydrogen, while the other may be hydrogen or alkyl, with a number of carbon atoms between 1 and 6, preferably methyl and ethyl; —n is an integer in the range between 4 and 16. 118-. (canceled)20. Lubricant composition containing one or more radial polymers according to in solution with one or more lubricant base oils.21. Lubricant composition according to claim 20 , in which the lubricant base oils are selected from synthetic oils claim 20 , mineral oils claim 20 , vegetable oils claim 20 , or oils of animal origin and mixtures thereof.22. Lubricant composition according to claim 19 , in which the hydrogenated radial polymers are used in a total concentration claim 19 , expressed as a weight percentage of the polymer in the finished lubricant oil claim 19 , between 0.1 and 5.23. Lubricant composition according to further containing one or more additives selected from detergent additives claim 19 , dispersant additives claim 19 , antioxidant additives claim 19 , friction-modifier additives claim 19 , antiwear and extreme pressure additives claim 19 , corrosion inhibitors claim 19 , pour point-depressant additives claim 19 , foam inhibitors or emulsifiers. The present invention relates to hydrogenated polymers with a radial structure having a core based on calixarenes and to the method for the ...

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30-05-2019 дата публикации

Solid lubricant, solid lubricant coater and image forming apparatus

Номер: US20190163115A1
Принадлежит: KONICA MINOLTA INC

The present invention relates to a solid lubricant to be coated on an image bearing member included in an electrophotographic image forming apparatus. The solid lubricant contains a resin particle and metal soap. The resin particle includes a particle body containing an amorphous resin as a principal component, and a fluorine atom supported on a surface of the particle body. The resin particle is a particle having a volume average particle size of 70 nm or more. The solid lubricant can sufficiently increase a cleaning effect in the image forming apparatus.

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01-07-2021 дата публикации

ASSOCIATIVE AND EXCHANGEABLE OLIGOMERS, AND COMPOSITION COMPRISING SAME

Номер: US20210198593A1
Принадлежит: TOTAL MARKETING SERVICES

Compositions resulting from the mixing of at least one oligomer A1, resulting from the copolymerization of at least one monomer functionalized by diol functions with at least a second monomer, and at least one compound A2 including at least two boronic ester functions. The compositions exhibit very varied rheological properties, depending on the proportion of the compounds A1 and A2 used. A composition also results from mixing at least one lubricating oil with such a composition of associative and exchangeable polymers, and to the use of this composition to lubricate a mechanical part. 111-. (canceled)13. The composition as claimed in claim 12 , in which the oligomer A1 has a number-average molar mass ranging from 600 g/mol to 4900 g/mol.14. The composition as claimed in claim 12 , in which the monomer M3 is styrene.15. The composition as claimed in claim 12 , in which the side chains of the oligomer A1 have a mean length ranging from 8 to 20 carbon atoms.16. The composition as claimed in claim 12 , in which the oligomer A1 has a molar percentage of repeating units corresponding to the monomer M1 of formula (I) ranging from 2% to 70%17. The composition as claimed in claim 12 , in which the oligomer A1 has a number-average degree of polymerization ranging from 3 to 100.18. The composition as claimed in claim 12 , in which the oligomer A1 has a polydispersity index (Ip) ranging from 1.05 to 4.0.21. The composition as claimed in claim 20 , in which the oligomer A2 has a number-average molar mass ranging from 600 g/mol to less than 10 000 g/mol.22. The composition as claimed in claim 20 , in which the oligomer A2 has a molar percentage of monomer M4 of formula (IV) in said oligomer ranging from 4% to 50%.23. The composition as claimed in claim 20 , in which claim 20 , the chain formed by the sequence of groups R claim 20 , M claim 20 , X and (R)with u equal to 0 or 1 of the monomer of formula (IV) has a total number of carbon atoms ranging from 8 to 38.24. The ...

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22-06-2017 дата публикации

Tire Lubricant

Номер: US20170175022A1
Автор: Hux Ruel Aaron
Принадлежит:

A non-water-based tire lubricant includes a thickening agent and a thinning agent. The thickening agent may be a silicone grease, hydrotreated light petroleum distillates, or hydrogenated liquid rosin ester, and the thinning agent may be a blend of petroleum distillates and additives or a silicone liquid. The tire lubricant has a pliable consistency, is easier to apply and use than standard tire lubricants, allows the tire to seal at much lower pressures, and is not water-based so that nitrogen concentrations inside the tire are maintained at 100 percent. 1. A tire lubricant consisting essentially of:a thickener; anda polydimethylsiloxane.2. A tire lubricant according to claim 1 , the thickener is a modified rosin ester.3. A tire lubricant according to claim 2 , the modified rosin ester is an hydrogenated liquid rosin ester.4. A tire lubricant according to claim 3 , the hydrogenated liquid rosin ester is a methyl ester of hydrogenated gum rosin.5. A tire lubricant according to claim 1 , the percent weight of the thickener is less than that of the polydimethylsiloxane.6. A tire lubricant according to claim 1 , the polydimethylsiloxane is trimethylsiloxy terminated.7. A tire lubricant consisting of:a thickener; anda polydimethylsiloxane.8. A tire lubricant according to claim 7 , the thickener is a modified rosin ester.9. A tire lubricant according to claim 8 , the modified rosin ester is an hydrogenated liquid rosin ester.10. A tire lubricant according to claim 9 , the hydrogenated liquid rosin ester is a methyl ester of hydrogenated gum rosin.11. A tire lubricant according to claim 7 , the percent weight of the thickener is less than that of the polydimethylsiloxane.12. A tire lubricant according to claim 7 , the polydimethylsiloxane is trimethylsiloxy terminated.13. A method for mounting a tire onto a rim claim 7 , the method comprising:applying a tire lubricant comprised of a thickener and polydimethylsiloxane to a bead of the tire prior to mounting the tire onto ...

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28-05-2020 дата публикации

FLUORINATED ETHER COMPOUND, FLUORINATED ETHER COMPOSITION, COATING LIQUID, ARTICLE AND ITS PRODUCTION METHOD

Номер: US20200165273A1
Принадлежит: AGC Inc.

To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid capable of forming a surface layer excellent in initial water/oil repellency, fingerprint stain removability, abrasion resistance, light resistance and chemical resistance, an article having a surface layer, and a method for producing it. 2. The fluorinated ether compound according to claim 1 , wherein the monovalent organic group having at least one hydrolyzable silyl group is a group represented by the following formula g1:{'br': None, 'sup': 1', '3, 'sub': n', '3-n', 'p, '-Q[-SiRL]\u2003\u2003formula g1'}{'sup': '1', 'claim-text': [{'sup': '3', 'Ris a hydrogen atom or a monovalent hydrocarbon group,'}, 'L is a hydrolyzable group,', 'n is an integer of from 0 to 2,', 'p is an integer of at least 1, and', {'sup': '3', 'sub': n', '3-n, 'when p is at least 2, the p [—SiRL] may be the same or different.'}], 'wherein Qis a (p+1) valent organic group (excluding one having a hydrolyzable silyl group),'}4. The fluorinated ether compound according to claim 2 , wherein both Rand Rare the group represented by the formula g1 wherein p is an integer of from 1 to 3.5. The fluorinated ether compound according to claim 2 , wherein Ris the group represented by the formula g1 wherein p is 2 or 3 claim 2 , and{'sup': '2', 'Ris a hydrogen atom or a monovalent organic group (excluding one having a hydrolyzable silyl group).'}6. A fluorinated ether composition comprising at least one type of the fluorinated ether compound as defined in claim 1 , and other fluorinated ether compound.7. A coating liquid comprising the fluorinated ether compound as defined in claim 1 , and a liquid medium.8. An article comprising a substrate and a surface layer formed of the fluorinated ether compound as defined in on a surface of the substrate.9. The article according to claim 8 , which has the surface layer on a surface of a member constituting a plane to be touched with fingers of a touch panel.10. A method ...

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08-07-2021 дата публикации

SILICONE FUNCTIONLIZED VISCOSITY INDEX IMPROVER

Номер: US20210207052A1
Принадлежит:

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 ...

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29-06-2017 дата публикации

Method for Storing an Emulsion-Adjuvanted Vaccine in a Lubricated Medical Injection Device

Номер: US20170182252A1
Принадлежит:

Provided herein is a method for storing an emulsion-adjuvanted vaccine in a medical injection device having a lubricant coating, said method including the steps of: (a) providing a medical injection device having a barrel having an inner surface; (b) forming a silicone oil layer on at least a part of the inner surface of the barrel that is intended to be in contact with the vaccine; (c) carrying out an oxidizing plasma treatment of the layer so as to crosslink at least part of the silicone oil layer and form a lubricant coating; and (d) filling the barrel with the emulsion-adjuvanted vaccine. The invention also relates to a medical injection device obtained directly from this method and to the use of plasma-treated silicone oil as a lubricant coating. 1. A method for storing an emulsion-adjuvanted vaccine in a medical injection device comprising a lubricant coating , said method comprising:(a) providing a medical injection device comprising a barrel having an inner surface;(b) forming a silicone oil layer on at least a part of the inner surface of the barrel that is intended to be in contact with the vaccine, (c) carrying out an oxidizing plasma treatment of said layer so as to crosslink at least part of the silicone oil layer and form a lubricant coating, (d) filling the barrel with the emulsion-adjuvanted vaccine.2. The method of claim 1 , wherein the emulsion is an oil-in-water emulsion.3. The method of claim 2 , wherein the oil phase of the adjuvant comprises squalene.4. The method of claim 1 , wherein the barrel is made of glass.5. The method of claim 1 , wherein the silicone oil has a viscosity between 900 and 1200 centiStokes at 25° C. before the plasma treatment.6. The method of claim 1 , wherein the coating has a thickness between 90 and 400 nm claim 1 , measured by reflectometry.7. The method of claim 1 , wherein the medical injection device comprises a syringe having an internal volume of 1 ml.8. The method of claim 7 , wherein the silicone oil layer has ...

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13-06-2019 дата публикации

TETRAFLUOROPROPENE COMPOSITIONS AND USES THEREOF

Номер: US20190177590A1
Принадлежит: THE CHEMOURS COMPANY FC, LLC

The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a tetrafluoropropene and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents. 114-. (canceled)15. A composition consisting essentially of from about 20 weight percent to about 80 weight percent HFO-1234yf , about 5 weight percent to about 40 weight percent HFC-134a , and about 5 weight percent to about 40 weight percent HFC-152a.16. The composition of claim 15 , further containing at least one non-refrigerant component selected from the group consisting of lubricants claim 15 , dyes claim 15 , solubilizing agents claim 15 , compatibilizers claim 15 , stabilizers claim 15 , tracers claim 15 , perfluoropolyethers claim 15 , anti-wear agents claim 15 , extreme pressure agents claim 15 , corrosion and oxidation inhibitors claim 15 , metal surface energy reducers claim 15 , metal surface deactivators claim 15 , free radical scavengers claim 15 , foam control agents claim 15 , viscosity index improvers claim 15 , pour point depressants claim 15 , detergents claim 15 , viscosity adjusters claim 15 , and mixtures thereof.17. The composition of claim 16 , wherein said lubricant is selected from the group consisting of mineral oils claim 16 , alkylbenzenes claim 16 , synthetic paraffins claim 16 , synthetic naphthenes claim 16 , poly alpha olefins claim 16 , polyalkylene glycols claim 16 , dibasic acid esters claim 16 , polyol esters claim 16 , neopentyl esters claim 16 , polyvinyl ethers claim 16 , silicones claim 16 , silicate esters claim 16 , fluorinated compounds claim 16 , phosphate esters and mixtures thereof.18. The composition of claim 16 , wherein said stabilizer is selected from the group consisting of hindered phenols claim 16 , ...

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04-06-2020 дата публикации

Antimicrobial-Containing Silicone Lubricious Coatings

Номер: US20200172740A1
Принадлежит: ETHICON, INC.

Novel, lubricious antimicrobial coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes at low temperatures that do not deform the device and preserves the antimicrobial effectiveness of the antimicrobial agent. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings. 1. A medical device coated with a lubricious silicone coating , comprising:a medical device having a surface; and,a lubricious silicone coating on at least a part of the surface, the coating formed from a coating composition comprising:a cross-linkable silicone polymer having reactive functionalities;optionally, a silica-containing composition;a silicone cross-linking agent;an antimicrobial agent; and, {'br': None, 'sub': 2', '3', '2', '2', '6', '10, 'Pt[(CH═CH)(CH)Si]O.CH(OH)(C═CH).'}, 'a catalyst, wherein said catalyst consists essentially of platinum divinyltetramethyldisiloxane vinylcyclohexanol complex having the formula2. The medical device of claim 1 , wherein the cross-linkable silicone polymer is selected from the group consisting of vinyl terminated polydialkylsiloxane claim 1 , vinyl terminated polydimethylsiloxane claim 1 , vinyl terminated polydiphenylsilane-dimethylsiloxane copolymer claim 1 , vinyl terminated polyphenylmethylsiloxane claim 1 , vinyl terminated polyfluoropropylmethyl-dimethylsiloxane copolymer and vinyl terminated polydiethylsiloxane.3. The medical device of claim 1 , wherein the cross-linkable silicone polymer comprises vinyl terminated polydimethylsiloxane.4. The medical device of claim 1 , wherein the antimicrobial agent is selected from the group consisting of triclosan claim 1 , chlorhexidine claim 1 , polyhexamethylene biguanide (PHMB) claim 1 , octenidine claim 1 , and silver.5. The medical ...

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07-07-2016 дата публикации

Lubricating oil for automotive and industrial applications, containing decorated graphene

Номер: US20160194575A1

This patent relates to a lubricating oil with added decorated graphene nanoparticles, which is called nanolubricant. This nanolubricant has automotive and industrial applications and offers as major benefits, simultaneous improvements in the thermal, rheological and tribological properties of the lubricant used as base fluid. Additionally, this nanolubricant offers a rheopectic behavior from a specific concentration, the same behavior that gives it the ability to increase its viscosity over time provided it is subjected to a constant cutting rate. Finally, the decorated graphene may include metallic, ceramic or polymeric nanoparticles, in a concentration range of 0.5% weight/weight to 2% w/w without changing the newtonian fluid behavior of the base lubricant, whereas for concentrations greater than 2% weight/weight and up to 3% weight/weight, the aforementioned rheopectic behavior will be observed.

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