Ethers Patents (Class 508/579)
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Publication number: 20030134757Abstract: The present invention provides a composition for cutting or abrasive working operations that comprises at least one lubricious additive and at least one hydrofluorocarbons. The present invention also provides a method for cutting or abrasive working.Type: ApplicationFiled: September 19, 2001Publication date: July 17, 2003Inventors: Dean S. Milbrath, Mark W. Grenfell
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Publication number: 20030127622Abstract: A lubricating oil for compression-type refrigerator includes, as a main component, a polyoxyalkyleneglycol derivative represented by the general formula:Type: ApplicationFiled: September 12, 2002Publication date: July 10, 2003Inventors: Yasuhiro Kawaguchi, Nobuaki Shimizu, Masato Kaneko, Hiroshi Nagakawa
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Publication number: 20030125218Abstract: A biodegradable lubricating oil composition especially useful as a gear oil employs a synthetic alcohol ester basestock formed from mono- and dipentaerythritol with certain mono- and dicarboxylic acids or dicarboxylic acid anhydrides and an effective amount of a polyoxyalkylene alcohol demulsifying agent, a combination of alkylated organic acid and ashless succinimide rust inhibitors and an ashless dithiocarbamate antiwear and extreme pressure agent.Type: ApplicationFiled: October 8, 2002Publication date: July 3, 2003Inventors: Angeline Baird Cardis, Susan Ardito
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Publication number: 20030104955Abstract: Viscosity index improvers, are disclosed, comprising the following polymer (A1) or (A0).Type: ApplicationFiled: August 7, 2002Publication date: June 5, 2003Applicant: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Tsuyoshi Yuki, Yoshihisa Ota
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Publication number: 20030100455Abstract: An aqueous grinding fluid has compositions mainly consisting of 40.0-95.0 wt. % a polyalcohol and/or a polyalcohol derivative, 5.0-50.0 wt. % water, 0.1-3.5 wt. % bentonite, 0.1-5.0 wt. % cellulose and weight %, 0.5-10.0 wt. % mica and optionally a small amount of a surfactant or polar solvent. Bentonite, cellulose and mica are preferably added with such combination to adjust a viscosity of a slurry to 150-300 mPa.second as a value measured by a rotating cylinder type viscometer. The aqueous suspension is nonflammable and stabilized in dispersiveness and settleability-proof of abrasive grits as well as a viscosity for a long time, and facilitates washing and cleaning of sliced wafers and a grinding machine without radiation of stinks.Type: ApplicationFiled: May 12, 2000Publication date: May 29, 2003Inventors: Hiroshi Oishi, Keiichiro Asakawa, Junichi Matsuzaki
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Patent number: 6569822Abstract: It is possible to make very concentrated solutions of N-coco-, N-oleyl- or N-tallow-propylenediamine acetate which can be diluted without formation of gels or of lumps in a water/dissolving agent solvent. A simple dilution test is given which allows the suitable compositions to be selected. Use of their diluted solutions, in particular for the lubrication of bottles on conveyor lines.Type: GrantFiled: March 18, 2002Date of Patent: May 27, 2003Assignee: AtofinaInventor: Francois Guillemet
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Publication number: 20030087770Abstract: Emulsifier system containing a) ethoxylates/propoxylates of fatty alcohols with 8 to 18 C atoms in the alcohol with 2 to 6 ethylene oxide units and 4 to 8 propylene oxide units, b) fatty alcohols and/or fatty alcohol propoxylates with 12 to 24 C atoms in the alcohol and 0 to 3 propylene oxide units and/or distillation residue of these fatty alcohols and c) phosphates, selected from: c1) mono- and/or diesters of phosphoric acid with alkanols with 10-20 C atoms, c2) mono- and/or diesters of phosphoric acid with ethoxylated and/or propoxylated alkanols with 10-20 C atoms and/or c3) phosphates of polyethylene glycol ethers and/or polypropylene glycol ethers, and the water-soluble salts of each of these, in a weight ratio a:b:c=1:0.3:0.1 to 1:4:1; anti-corrosive and emulsifier system with these components, emulsion concentrate with these components, oil-in-water emulsion obtainable therefrom and use thereof as a cleaning, anti-corrosive and low-temperature lubricant emulsion.Type: ApplicationFiled: October 31, 2002Publication date: May 8, 2003Inventors: Hans-Peter Oelscher, Juergen Geke
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Publication number: 20030087768Abstract: A lubricating grease composition contains a major amount of lubricating base oil, at least one thickener and at least one agent for reducing the coefficient of friction. The agent for reducing the coefficient of friction comprises a metal oxide that has a specific surface area of at least 100 m2/g and that is selected from the group consisting of titanium oxide, silicon dioxide, aluminum oxide and tin dioxide.Type: ApplicationFiled: October 23, 2002Publication date: May 8, 2003Inventors: Jurgen Florchinger, Karsten Scholer
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Patent number: 6548457Abstract: The present invention provides a lubricant for a compression type refrigeration system using ammonia as a refrigerant, which comprises polyether compounds and aromatic amine compounds or phenothiazine compounds, and preferably further comprises alcohol compounds such as polyhydric alcohol partial ether and/or benzotriazole compounds. Further, the present invention provides a working fluid composition comprising the lubricant and an ammonia refrigerant, and a refrigeration system which is filled with the working fluid composition. The lubricant has not only good compatibility with ammonia, but excellent stability and lubricating property, and therefore can suitably used in a compression type refrigeration system using an ammonia refrigerant that does not have the possibility of ozone layer depletion and global warming phenomenon.Type: GrantFiled: January 17, 2001Date of Patent: April 15, 2003Assignee: Japan Energy CorporationInventors: Takashi Kaimai, Hitoshi Takahashi
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Publication number: 20030050197Abstract: The first lubricating oil composition of the invention comprises a polyol ester (A) as a base oil, a specific amount of a viscosity index improver (B) and a specific amount of an anti-wear agent (C), and the second lubricating oil composition of the invention comprises a paraffinic hydrocarbon oil (F) having at least 30 carbon atoms and a specific amount of a viscosity index improver (B), so that these compositions exert effects that they enable a life of watch battery to last long, they enable a watch to operate in the temperature range of −30 to 80° C. with one kind of a lubricating oil, and they are free from change of properties over a long period of time.Type: ApplicationFiled: October 9, 2001Publication date: March 13, 2003Inventor: Yuji Akao
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Publication number: 20030027729Abstract: To provide a lubricant which is excellent in the compatibility with ammonia and also has excellent practical performance such as good stability and lubricity.Type: ApplicationFiled: July 9, 2002Publication date: February 6, 2003Inventors: Takashi Kaimai, Hitoshi Takahashi, Goro Yamamoto, Kimiyoshi Namiwa, Ayako Saneyoshi
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Publication number: 20030027732Abstract: A perfluoropolyether, a composition comprising the perfluoropolyether, a process for producing the perfluoropolyether, and a process for improving the thermostability of grease or lubricant are provided. The perfluoropolyether comprises perfluoroalkyl radical end groups in which the radical has at least 3 carbon atoms per radical and is substantially free of perfluoromethyl and perfluoroethyl end groups.Type: ApplicationFiled: July 10, 2001Publication date: February 6, 2003Inventors: Jon L. Howell, Erik William Perez, Alfred Waterfeld, Chadron Mark Friesen, Joseph Stuart Thrasher
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Patent number: 6509302Abstract: We have found that a clear, stable microemulsion can be used during container transport operations during which the container is contacted with a transparent dispersion of hydrophilic and oleophilic materials. A process for lubricating a container, such as a beverage container, or a conveyor for containers, by applying to the container or conveyor, a thin continuous, substantially non-dripping layer of a transparent dispersed liquid lubricant. The process provides many advantages compared to the use of a conventional lubricant diluted with water.Type: GrantFiled: December 20, 2000Date of Patent: January 21, 2003Assignee: Ecolab Inc.Inventors: Minyu Li, Kimberly Person Hei, Amy Haupert
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Publication number: 20030008782Abstract: A lubricating-grease modifier for addition to and modification of a lubricating grease that is to be present in a driving mechanism of a machine or apparatus and lubricate a driving part of the driving mechanism, the modifier comprising a lubricating resin powder and a water-absorbing resin powder and a high-lubricity grease comprising a solid lubricant, the solid lubricant comprising at least one synthetic resin selected from the group consisting of polyamides, polyimides, high-density polyolefins and polyesters.Type: ApplicationFiled: June 18, 2002Publication date: January 9, 2003Inventors: Satoshi Endou, Rie Oguri, Mikio Yamamoto
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Publication number: 20030008786Abstract: A lubricant blend for use on a wire exposed to an HFC refrigerant. The lubricant blend includes an organic phase and an aqueous phase. The organic phase includes a lubricant which has a defined solubility in the HFC refrigerant and a lubricity suitable for application to the wire. The organic phase also includes a solvent in which the lubricant is soluble and, optionally, a hydrophobic surfactant. The aqueous phase includes a surfactant which forms an emulsion between the organic phase and the aqueous phase, which has a defined solubility in a non-CFC containing refrigerant. A magnetic wire lubricant, method of making the lubricant blend, and compressor using the lubricant blend are also described.Type: ApplicationFiled: June 8, 2001Publication date: January 9, 2003Inventor: Michael G. Minnick
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Patent number: 6503871Abstract: A fluid power steering gear (10) comprises a housing (16). A power steering fluid (34) is disposed within the housing (16). A seal (50) contains the power steering fluid (34) within said housing (16). A member (20) extends through the housing (16) and the seal (50). The member (20) is movable relative to the housing (16) and the seal (50) in response to a change in the fluid pressure in the housing (16). The power steering fluid (34) comprises a base oil and a metal-free lubricant additive. The metal-free lubricant additive is soluble in the base oil and modifies the interfacial surface tension between the base oil and the member (20) and the base oil and the seal (50). The weight percent of the metal-free lubricant additive is about 0.1% to about 5.0%, by weight of the power steering fluid (34).Type: GrantFiled: April 4, 2001Date of Patent: January 7, 2003Assignee: TRW Inc.Inventor: Jon W. Martin
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Patent number: 6500790Abstract: A lubricant blend for use on a wire exposed to an HFC refrigerant. The lubricant blend includes an organic phase and an aqueous phase. The organic phase includes a lubricant which has a defined solubility in the HFC refrigerant and a lubricity suitable for application to the wire. The organic phase also includes a solvent in which the lubricant is soluble and, optionally, a hydrophobic surfactant. The aqueous phase includes a surfactant which forms an emulsion between the organic phase and the aqueous phase, which has a defined solubility in a non-CFC containing refrigerant. A magnetic wire lubricant, method of making the lubricant blend, and compressor using the lubricant blend are also described.Type: GrantFiled: June 8, 2001Date of Patent: December 31, 2002Assignee: General Electric CompanyInventor: Michael G. Minnick
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Publication number: 20020193261Abstract: A lubricating composition containing naphthenic basestocks has demulsification properties improved by the addition of a demulsification additive selected from oxyalkylated glycols, esters of oxyalkylated glycols and mixtures thereof.Type: ApplicationFiled: March 22, 2002Publication date: December 19, 2002Inventors: William Donald Hewson, Terrence Edward Addley
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Patent number: 6495494Abstract: 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 and with relatively low or no water content, 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.Type: GrantFiled: June 16, 2000Date of Patent: December 17, 2002Assignee: Ecolab Inc.Inventors: Minyu Li, Keith Darrell Lokkesmoe
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Patent number: 6485794Abstract: The passage of a container along a conveyor is lubricated by applying to the container or conveyor a lubricating coating that is thermally cured at less than 200° C. or radiation-cured. The mixture can be applied in relatively low amounts and with relatively low or no water content, to provide thin, substantially non-dripping, renewable lubricating films. In contrast to dilute aqueous lubricants, the lubricants of the invention provide dry lubrication of the conveyors and containers, a cleaner conveyor line and reduced lubricant usage, thereby reducing waste, cleanup and disposal problems.Type: GrantFiled: June 27, 2000Date of Patent: November 26, 2002Assignee: Ecolab Inc.Inventors: Minyu Li, Robert D. P. Hei, Keith D. Lokkesmoe, Keith Edward Olson
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Publication number: 20020173433Abstract: Novel non-symmetric, partially fluorinated compositions and method of manufacture which are useful as lubricants or as additives to lubricant formulations involving the molecular structure:Type: ApplicationFiled: April 30, 2002Publication date: November 21, 2002Inventor: Richard P. Beatty
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Patent number: 6478983Abstract: There is obtained a lubricating oil having good solubility with both HFC refrigerant and contaminants by adding PAG having a viscosity of not more than 70 cSt (40° C.) to a synthetic lubricating oil, such as polyvinyl ether and ester oils at an amount of not less than 0.1 wt % and not more than 20 wt % (desirably, not less than 20 wt % and not more than 10 wt %). Therefore, in a refrigerating/air-conditioning machine equipped with a compressor using this present lubricating oil together with a HFC refrigerant as a working fluid, deflection in the ratio of the mixture within the machines is not caused and, consequently, the efficiency for washing capillary tubes is not reduced. In that case, a high-reliable refrigerating/air-conditioning machine can be obtained at a low price without any modification of the refrigerating/air-conditioning machine.Type: GrantFiled: May 21, 1999Date of Patent: November 12, 2002Assignee: Daikin Industries, Ltd.Inventors: Hideki Matsuura, Masaki Nomura
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Patent number: 6475405Abstract: Disclosed is a lubricating oil for compression-type refrigerator comprising, as a main component, a polyoxyalkyleneglycol derivative represented by the general formula: R1[(OR2)mOR3]n wherein symbols are as defined in the specification. Said lubricating oil has a favorable compatibility with refrigerants and an excellent lubricating property, and is utilized as the lubricating oil for compression-type refrigerator employing hydrogen-containing fluorocarbon compound refrigerants including R-134a or fluorocarbon compound refrigerants without hydrogen.Type: GrantFiled: October 28, 1991Date of Patent: November 5, 2002Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yasuhiro Kawaguchi, Nobuaki Shimizu, Masato Kaneko, Hiroshi Nagakawa
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Patent number: 6472352Abstract: A highly effective solid cold working lubricant may be deposited on a metal surface from an aqueous solution/dispersion that contains ethoxylated alcohols with at least 18 carbon atoms per alcohol and lithium, calcium, and/or sodium salts of fatty acids. Optional preferred ingredients include inorganic boron containing compounds, ethoxylated castor oil, ionomers, and a corrosion inhibitor that includes azoles. No prior conversion coating, such as is generally used under conventional organic soap lubricants, is needed with this type of solid film.Type: GrantFiled: February 28, 2001Date of Patent: October 29, 2002Assignee: Henkel CorporationInventor: Kenneth J. Hacias
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Publication number: 20020151445Abstract: A lubricant containing (a) a synthetic base oil composition having an overall kinematic viscosity of at least about 4.8×10−6 m2/s (4.8 cSt) at 100° C. and a viscosity index of at least about 110; (b) a dispersant-viscosity modifier; and (c) a sulfur-free functionalized hydrocarbyl-substituted phenol detergent provides improved valve train wear, with longer drain intervals, to heavy duty diesel engines.Type: ApplicationFiled: October 16, 2001Publication date: October 17, 2002Applicant: The Lubrizol CorporationInventors: Thomas T. Curtis, Gordon D. Lamb, William D. Abraham
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Patent number: 6465399Abstract: The present invention is a lubricant composition, composed of a lubricant base oil containing: a (poly)glyceryl ether represented by the following general formula (1) (wherein R1 represents a hydrocarbon group and n represents a numeral being 1 or more.), as a (A) component; and an alkaline-earth metal salt of an organic acid as a (B) component. Furthermore, it is preferable to contain an antioxidant as a (C) component. As an alkaline-earth metal salt of an organic acid, sulfonate, phenate, or salicylate are preferable, and neutral, basic or overbased calcium salicylate or calcium sulfonate are particularly preferable.Type: GrantFiled: January 30, 2001Date of Patent: October 15, 2002Assignee: Asahi Denka Koygo Kabushiki KaishaInventors: Naomi Koishikawa, Yukio Tatsumi
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Publication number: 20020142920Abstract: A grease composition is disclosed, wherein a metallic soap-base thickener containing a long-fiber material having a major axis part length of at least 3 &mgr;m is blended with a base oil obtained by mixing a lubricating oil having a polar group within the molecule structure and a non-polar lubricating oil, which can improve the initial sound (cage sound) of bearing at the starting of operation in a low-temperature environment and is effective on the reduction of fretting damage (abrasion) or torque, and also a rolling bearing and a linear acting apparatus each obtained by packing the grease composition are disclosed, which exhibit excellent low-temperature acoustic property and are reduced in the fretting damage (abrasion) or torque.Type: ApplicationFiled: November 1, 2001Publication date: October 3, 2002Applicant: NSK LTD.Inventors: Youichiro Sugimori, Atsushi Yokouchi, Hisao Sumiya, Michiharu Naka
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Patent number: 6458288Abstract: Disclosed is a lubricating oil for compression-type refrigerator comprising, as a main component, a polyoxyalkyleneglycol derivative represented by the general formula: R1&Brketopenst;(OR2&Parenclosest;mOR3]n wherein symbols are as defined in the specification. Said lubricating oil has a favorable compatibility with refrigerants and an excellent lubricating property, and is utilized as the lubricating oil for compression-type refrigerator employing hydrogen-containing fluorocarbon compound refrigerants including R-134a.Type: GrantFiled: April 2, 1990Date of Patent: October 1, 2002Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yasuhiro Kawaguchi, Nobuaki Shimizu, Masato Kaneko, Hiroshi Nagakawa
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Patent number: 6458750Abstract: The invention relates to engine oil compositions with reduced deposit-formation tendency which contain between 0.05 and 10% by weight, in relation to the total weight of the engine oil composition, of an alkyl alkoxylate of formula (I), in which R 1 , R 2 and R 3 independently are hydrogen or a hydrocarbon rest with up to 40 carbon atoms; R 4 is hydrogen, a methyl or ethyl rest; L is a linking group; n is a whole number between 4 and 40; A is an alkoxy group with between 2 and 25 recurring units derived from ethylene oxide, propylene oxide and/or butylene oxide and comprises homopolymers and statistical copolymers of at least two of the above compounds; and z is 1 or 2. The nonpolar part of compound (I) of the formula (II) contains at least 9 carbon atoms. The invention also relates to the preparation of such engine oils and to the use of alkyl alkoxylates of formula (I) for the reduction of deposit formation.Type: GrantFiled: June 18, 2001Date of Patent: October 1, 2002Assignee: Rohmax Additives GmbHInventors: Alexander Dardin, Klaus Hedrich, Stephan Massoth, Boris Eisenberg, Stephan Fengler
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Publication number: 20020123436Abstract: Refrigerating machine oils comprising an ester oil for use with a refrigerant containing carbon dioxide are described. The refrigerating machine oils have excellent lubricity, miscibility with a refrigerant, stability and electric insulation.Type: ApplicationFiled: February 28, 2002Publication date: September 5, 2002Applicant: Nippon Mitsubishi Oil CorporationInventors: Tomomasa Osumi, Hiroyuki Hirano, Yasuyuki Watanabe
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Patent number: 6444627Abstract: A lubricant composition comprises (a) an optionally esterified or etherified reaction product of (i) an alcohol comprising up to 6 hydroxy groups and no heteroatom other than oxygen and (ii) one or more alkylene oxides; and (b) a reaction product of (i) ammonia or an alkanol amine and (ii) one or more alkylene oxides, wherein the average OH-functionality of the reaction products (a) and (b) is up to 4.5 and the total number of units derived from alkylene oxide in the reaction product (b) is up to about 12. The lubricant composition is particularly useful for treating fiber materials.Type: GrantFiled: March 13, 2001Date of Patent: September 3, 2002Assignee: Dow Global Technologies Inc.Inventors: Peter H. Berchtold, Irene Siegrist
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Publication number: 20020115575Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.Type: ApplicationFiled: December 22, 2000Publication date: August 22, 2002Inventors: Antonio Gutierrez, Ricardo A. Bloch, Nancy Z. Diggs, Fredrick W. Girschick, David J. Martella, Mark G. Stevens, Jacob Emert
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Publication number: 20020115573Abstract: A food container conveyor device having improved lubricant properties can be lubricated using a lubricant composition that can become ingested by a user from a food or a container for the food, can come into incidental contact or direct content with a food composition, can be incorporated at measurable concentrations into the food, or can be used generally on food conveyor surfaces wherein the food is exposed to the lubricant. Such lubricant compositions can be formulated in aqueous or non-aqueous compositions containing approved lubricant ingredients. Food containers lubricated using the compositions of the invention can be distributed to the public even in the substantial occurrence of contact between the food composition and the approved lubricant materials.Type: ApplicationFiled: December 15, 2000Publication date: August 22, 2002Inventors: Kim Person Hei, Minyu Li, Amy Haupert, Keith D. Lokkesmoe
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Publication number: 20020115577Abstract: A refrigerating machine oil for a carbon dioxide refrigerant according to the invention is a refrigerating machine oil comprising polyalkylene glycol represented by the following general formula (1):Type: ApplicationFiled: October 16, 2001Publication date: August 22, 2002Inventors: Tomomasa Ohsumi, Katsuya Takigawa
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Patent number: 6436883Abstract: Provided herein are functional fluid compositions useful in hydraulic fluid and gear oil formulations. The formulations according to the invention include a predominant amount of at least one polyoxyalkylene glycol derived from the addition polymerization of an alcohol in the presence of an alkylene oxide mixture which contains a substantial amount of ethylene oxide. Fluids according to the invention exhibit suitable lubricity and stability characteristics and are generally water soluble to a degree sufficient to preclude formation of a sheen on the surface of a body of water into which a fluid according to the invention is brought into contact.Type: GrantFiled: April 6, 2001Date of Patent: August 20, 2002Assignee: Huntsman Petrochemical CorporationInventor: Edward Chung-Yit Nieh
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Publication number: 20020098993Abstract: A refrigerating machine oil for a carbon dioxide refrigerant according to the present invention contains polyalkylene glycol represented by the following general formula (1):Type: ApplicationFiled: November 21, 2001Publication date: July 25, 2002Applicant: Nippon Mitsubishi Oil CorporationInventors: Tomomasa Ohsumi, Katsuya Takigawa
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Patent number: 6420323Abstract: A low-foam emulsifier system is presented containing (a) an ethoxylate/propoxylate of one or more C8-C18 fatty alcohols, where the ethoxylate/propoxylate contains 2 to 6 ethylene oxide units and 4 to 8 propylene oxide units, with (b) a fatty alcohol propoxylate or distillation residue of fatty alcohol or fatty alcohol propoxylate, where the fatty alcohol contains 12 to 24 carbon atoms and up to three propylene oxide units. The weight ratio of (a) to (b) is from 1:0.3 to 0.3:1. The emulsifier system produces a low amount of foam, and is useful in industrial metal processing applications such as cleaning, corrosion protection or cooling lubricant emulsions.Type: GrantFiled: July 27, 1999Date of Patent: July 16, 2002Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Juergen Geke, Horst-Dieter Speckmann, Bernd Stedry
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Publication number: 20020077255Abstract: Disclosed is a lubricating oil for compression-type refrigerator comprising, as a main component, a polyoxyalkyleneglycol derivative represented by the general formula: 1Type: ApplicationFiled: August 28, 2001Publication date: June 20, 2002Inventors: Yasuhiro Kawaguchi, Nobuaki Shimizu, Masato Kaneko, Hiroshi Nagakawa
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Patent number: 6403541Abstract: Disclosed are a composition for preventing clogging of oil filters for various internal combustion engines, the composition comprising at least one hydroxyl-containing component selected from the group consisting of: compounds represented by the formula (1) R1O—(R2O)m—H (1) wherein R1 is hydrogen or C1 to C8 alkyl, R2 is C2 to C10 alkylene, m is an integer of 1 to 10, and when m is 2 or more, the two or more R2 groups may be the same or different; and compounds represented by the formula (2) wherein R3 is C2 to C4 alkylene, R4 is hydrogen or C1 to C10 alkyl, n is an integer of 0 to 8, and when n is 2 or more, the two or more R3 groups may be the same or different; a method for preventing oil filter clogging using the composition, and an engine oil composition containing the composition.Type: GrantFiled: March 14, 2000Date of Patent: June 11, 2002Assignee: New Japan Chemical Co., Ltd.Inventors: Yoshikuni Kambara, Hirotaka Tomizawa
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Patent number: 6387854Abstract: A composition for lubricating the top of a rail is disclosed. The composition is composed of: (a) 25 to 45 wt % of a first polyoxyalkylene glycol comprising a linear copolymer of ethylene oxide and propylene oxide copolymer and having an average molecular weight of about 2,500; (b) 0.5 to 3.0 wt % of a second polyoxyalkylene glycol comprising a linear copolymer of ethylene oxide and propylene oxide copolymer and having an average molecular weight of about 12,000; (c) 5 to 35 wt % of a solvent; and (d) a rust inhibitor. Methods of making and using the composition are also disclosed.Type: GrantFiled: February 28, 2001Date of Patent: May 14, 2002Assignee: Texaco Inc.Inventors: Gregory Jude Sedelmeier, Robert Joel Taylor
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Patent number: 6383991Abstract: The present invention relates to a cutting oil comprising (a) a polyether compound represented by the formula (I): R1O(EO)m(AO)nR2 (I) wherein each of R1 and R2, which may be identical or different, is hydrogen atom or a hydrocarbon group having 1 to 24 carbon atoms, at least one of which is a hydrocarbon group; EO is oxyethylene group; AO is an oxyalkylene group having 3 or 4 carbon atoms; and each of m and n is 1 to 50, wherein a sum of m and n is from 4 to 100; a cutting oil composition comprising the above cutting oil and an abrasive; a cutting method using the above cutting oil composition; and a process of cleaning a wafer, comprising the steps of cleaning a wafer obtainable by cutting an ingot with a wire saw using the above cutting oil composition; heating the resulting waste water to a temperature equal to or higher than a cloud point of a polyether compound represented by the formula (I) contained in the waste water, to allow separation into an oil phase and an aqueous phase; and removiType: GrantFiled: November 27, 2000Date of Patent: May 7, 2002Assignee: Kao CorporationInventors: Jiro Hashimoto, Toshiya Hagihara, Kazuhiko Nishimoto
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USE OF SURFACTANTS WITH LOW MOLECULAR WEIGHT FOR IMPROVING THE FILTERABILITY IN HYDRAULIC LUBRICANTS
Publication number: 20020049144Abstract: A hydraulic oil, a predominant amount of an oil having a viscosity suitable for lubrication and from 0.03% to 0.06% of an agent improving filterability, corresponding to the formula R—Z. Z represents a polar group containing one or more substituents chosen from phosphoric esters, amides, ethers, amino alcohols, ethoxylated amines, and mixtures thereof. R represents a lipophilic chain having 14 to 24 carbon atoms.Type: ApplicationFiled: December 11, 1998Publication date: April 25, 2002Inventors: OLIVIER CLEMENT, CHRISTOPHER LE SAUSSE, DOMINIQUE BATELIER, JACQUES CAZIN -
Patent number: 6376433Abstract: A two- or a one-step process and composition which coats metal workpiece surfaces (aluminum, copper, steel, stainless steel, etc.) with a thin lubricant film capable of allowing the metal to be deformed at room temperature. The lubricant consists essentially of polymers, dispersants, high molecular weight waxes and insoluble metallic stearates. With some ferrous surfaces, a separate coating layer is simultaneously formed (in the one-step process) or pre-formed (in the two-step process) at the metal interface, acting as a base for the lubricant. The process, after pickling in a mineral acid to remove scale and oxides, comprises the step(s) of immersing the workpiece either once or twice. The workpiece is then dried in a heated, forced air dryer.Type: GrantFiled: July 13, 2000Date of Patent: April 23, 2002Assignee: Century Chemical CorporationInventor: Patrick J. Connor
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Publication number: 20020042350Abstract: Disclosed is a machining fluid admixture for cooling and lubricating a workpiece/tool interface, wherein the admixture comprises a major amount of n-propyl bromide and a minor amount of a lubricant. In other embodiments, the machining fluid consists essentially of about 30.0 to about 99.99 weight percent n-propyl bromide; from about 0.01 to about 30.0 weight percent of a lubricant; and optionally from 0.0 to about 70.0 weight percent of a fluorinated chemical. In still further embodiments, the machining fluid consists essentially of about 45.0 to about 50.0 weight percent n-propyl bromide; from about 0.01 to about 2.0 weight percent of a lubricant; and from 45.0 to about 50.0 weight percent of a fluorinated chemical. In other aspects, the present invention is directed to methods for cooling and lubricating a tool/workpiece interface.Type: ApplicationFiled: November 2, 2001Publication date: April 11, 2002Applicant: Garrett Services, Inc.Inventor: Andrew D. Garrett
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Patent number: 6362140Abstract: The invention is a high molecular weight polyether polyol prepared by the reaction of one or more compounds having one or more active hydrogen compounds with one or more alkylene oxides in the presence of a catalyst comprising calcium having counterions of carbonate and a C6-10 alkanoate in a solvent or dispersant which does not contain active hydrogen atoms. The polyether polyol prepared preferably has an equivalent weight of from about 1000 to about 20,000, a polydispersity of 1.3 or less and a residual catalyst level of from about 0 to about 2000 parts per million (ppm). In another embodiment the invention is a process for preparing such high molecular weight polyether polyols. The process comprises first, contacting one or more compounds having one or more active hydrogen atoms with one or more alkylene oxides in the presence of a catalyst. The catalyst comprises calcium having counterions of carbonate and a C6-10 alkanoate in a solvent, wherein the solvent does not contain active hydrogen atoms.Type: GrantFiled: September 7, 2000Date of Patent: March 26, 2002Assignee: The Dow Chemical CompanyInventors: Philip W. McGraw, Robert H. Whitmarsh
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Publication number: 20020032130Abstract: A surfactant composition is described. This composition is used for the emulsification of oil and water to form microemulsions. These microemulsions can be used as industrial lubricants e.g. machine tool cutting oils (although many uses are possible) and show distinct advantages over traditional neat oils or macroemulsions.Type: ApplicationFiled: October 21, 1999Publication date: March 14, 2002Inventors: Pauline W. Zard, David J. Barclay-Miller, David W. Martin
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Publication number: 20020025912Abstract: Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the stress cracking promoting materials from interacting with the polymeric structure of the stressed container to prevent or inhibit stress cracking in such materials. The methods and compositions of the invention are particularly useful in preventing stress cracking in polyethylene terephthalate beverage containers during bottling operations during which the bottle is contacted with aqueous and non-aqueous materials such as cleaners and lubricants that can interact with the polyester to cause stress cracking particularly in the container base.Type: ApplicationFiled: April 23, 2001Publication date: February 28, 2002Inventors: Kimberly L. Person Hei, Joy G. Herdt, Minyu Li, Keith Darrell Lokkesmoe, Guang-Jong Jason Wei, Michael E. Besse
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Publication number: 20020006878Abstract: A composition of an antioxidant of the formula 1Type: ApplicationFiled: January 16, 2001Publication date: January 17, 2002Applicant: Lubrizol CorporationInventors: William D. Abraham, Paul E. Adams, Gordon D. Lamb, Thomas J. Wolak, Richard A. Denis, Jody A. Kocsis, James P. Roski, Virginia A. Carrick, Susan V. Cowling
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Publication number: 20020004465Abstract: The invention is a liquid composition of matter useful as a metal working lubricant. The composition comprises a primary lubricity component, such as a polyether or polyether ester, and dissolved salts of carboxylic acids. The composition preferably contains not more than 0.2 percent of any element except carbon, hydrogen, oxygen, alkaline earth metals, alkali metals, inorganically bonded halogens, inorganically bonded nitrogen, inorganically bonded sulfur, and inorganically bonded phosphorus.Type: ApplicationFiled: February 27, 2001Publication date: January 10, 2002Inventor: Frank K. Botz
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Publication number: 20020002118Abstract: An additive for lubricating oil, especially motor oil for internal combustion engines, uses a mixture of overbased zinc alhyl-dithiophosphate, a chlorinated paraffin and a glycol ether. The additive preferable is used in a mineral oil base for reduced wear and lower oil operating temperatures.Type: ApplicationFiled: May 18, 2001Publication date: January 3, 2002Inventor: M. Karl Brandt