Patents by Inventor Vasudevan Balasubramaniam
Vasudevan Balasubramaniam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11124729Abstract: A lubricant composition includes a polyalkylene glycol base oil component in an amount of at least about 60 parts by weight based on 100 parts by weight of the lubricant composition. The lubricant composition has a kinematic viscosity at 100° C. of from about 4 to about 50 cSt and a kinematic viscosity at 40° C. of from about 20 to about 700 cSt, each measured in accordance with ASTM D445.Type: GrantFiled: June 1, 2017Date of Patent: September 21, 2021Assignee: BASF SEInventors: Arjun K. Goyal, Vasudevan Balasubramaniam
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Publication number: 20200172826Abstract: A lubricant composition comprising a) a synthetic poly-alpha-olefin base fluid; b) an organomolybdenum friction modifier; c) an alkylphosphorothiolate and a hydrocarbylamine anti-wear combination; and d) a dihydrocarbyl dithiophosphate extreme pressure additive and optionally one or more of e) a copper corrosion inhibitor; f) an anti-foam agent; g) a solubilizing agent; h) polymeric viscosity index improver; and i) an oligomeric viscosity modifier is highly suitable for use in the synchronizer of a transmission.Type: ApplicationFiled: August 28, 2018Publication date: June 4, 2020Inventors: Vasudevan Balasubramaniam, Keith Denivo, Thomas Ruehle, Jochen Wagner
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Patent number: 9783761Abstract: 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.Type: GrantFiled: March 8, 2012Date of Patent: October 10, 2017Assignee: COGNIS IP MANAGEMENT GmbHInventors: Vasudevan Balasubramaniam, Mark Witschger, Uwe Förster
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Publication number: 20170044459Abstract: An axle lubricating oil composition includes a polyalphaolefin having a kinematic viscosity at 100° C. of from 2 to 40 cSt when measured in accordance with ASTM D445. The axle lubricating oil composition also includes an alkoxylated polytetrahydrofuran of general formula (II). The alkoxylated polytetrahydrofuran of general formula (II) is present in an amount of from 10 to 40 parts by weight based on 100 parts by weight of the axle lubricating oil composition.Type: ApplicationFiled: October 28, 2016Publication date: February 16, 2017Inventors: Arjun K. Goyal, Vasudevan Balasubramaniam, Nawid Kashani-Shirazi, Muriel Ecormier, Markus Hansch, Claudia Fischer, Thomas Weiß, Markus Scherer
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Patent number: 8877324Abstract: One aspect of the present invention relates to the use of a polyamide as a binder for printing inks, wherein the polyamide is a reaction product (P) of (1) one or more compounds which are chosen from the group of primary and/or secondary monoamines and polyamines with (2) a dimer fatty acid and (3) a carboxylic monoacid, with the proviso that the dimer fatty acid (2) building block of (P) contains at least 30% by weight of monomer fatty acid.Type: GrantFiled: March 7, 2012Date of Patent: November 4, 2014Assignee: Cognis IP Management GmbHInventors: Dharakumar Metla, Vasudevan Balasubramaniam, Matthew Bianchi
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Patent number: 8802739Abstract: Disclosed are low VOC defoaming agents comprising at least one active defoaming compound or combination of defoaming compounds, and a liquid carrier comprising one or more organic compounds having a viscosity of less than about 100 centistokes (cSt) at 40° C. as measured by ASTM D445, having a VOC content as measured by ASTM method D3960 “Standard Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings” of not greater than about 1% by weight.Type: GrantFiled: April 12, 2011Date of Patent: August 12, 2014Assignee: Cognis IP Management GmbHInventors: John Mangano, Vasudevan Balasubramaniam, Daniel Herzog
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Publication number: 20120289445Abstract: 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.Type: ApplicationFiled: March 8, 2012Publication date: November 15, 2012Applicant: Cognis IP Management GmbHInventors: Vasudevan Balasubramaniam, Mark Witschger, Uwe Förster
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Publication number: 20120231235Abstract: One aspect of the present invention relates to the use of a polyamide as a binder for printing inks, wherein the polyamide is a reaction product (P) of (1) one or more compounds which are chosen from the group of primary and/or secondary monoamines and polyamines with (2) a dimer fatty acid and (3) a carboxylic monoacid, with the proviso that the dimer fatty acid (2) building block of (P) contains at least 30% by weight of monomer fatty acid.Type: ApplicationFiled: March 7, 2012Publication date: September 13, 2012Applicant: Cognis IP Management GmbHInventors: Dharakumar Metla, Vasudevan Balasubramaniam, Matthew Bianchi
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Publication number: 20120190799Abstract: The present invention relates to a polyamide curative composition comprising a reaction product (P) of (1) at least three compounds of formula H2NCH2CH2(NHCH2CH2)xNH2 with x=1 or higher with (2) a dimer fatty acid and (3) a carboxylic monoacid, with the proviso that the composition is free of tetrahydro-pyrimidine-containing compounds and free of piperazine-containing compounds and the proviso that the dimer fatty acid (2) building block of (P) contains less than 50% of non-cyclic dimer fatty acid isomers.Type: ApplicationFiled: September 21, 2011Publication date: July 26, 2012Applicant: Cognis IP Management GmbHInventors: Natesh Anbazhagan, Sudhir Ananthachar, Alexander Y. Polykarpov, Shailesh C. Shah, Vasudevan Balasubramaniam
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Publication number: 20110248213Abstract: Disclosed are low VOC defoaming agents comprising at least one active defoaming compound or combination of defoaming compounds, and a liquid carrier comprising one or more organic compounds having a viscosity of less than about 100 centistokes (cSt) at 40° C. as measured by ASTM D445, having a VOC content as measured by ASTM method D3960 “Standard Practice for Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings” of not greater than about 1% by weight.Type: ApplicationFiled: April 12, 2011Publication date: October 13, 2011Applicant: COGNIS IP MANAGEMENT GMBHInventors: John Mangano, Vasudevan Balasubramaniam, Daniel Herzog
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Publication number: 20110111996Abstract: A lubricant composition characterized by the Society of Automotive Engineers (“SAE”) as 75W-140 capable of meeting the American Petroleum Institute's (“API”) GL-5 performance classification requirements 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, and (ii) at least one diester; (b) viscosity improver comprising (i) at least one relatively high viscosity polyalphaolefin, and (ii) polyisobutylene; and (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.Type: ApplicationFiled: November 8, 2010Publication date: May 12, 2011Applicant: COGNIS IP MANAGEMENT GMBHInventors: Stephen Lakes, Mark Witschger, Vasudevan Balasubramaniam
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Publication number: 20040192564Abstract: The present invention provides a hypoid axle bimodal gear lubricant formulation comprising: (a) a base oil of lubricating viscosity, (b) at least one viscosity index improver, (c) a friction modifier, and (d) an antiwear additive; wherein said bimodal gear lubricant formulation produces a gel permeation chromatogram having at least a first peak representative of the base oil and at least a second peak representative of the viscosity index improver, and wherein said base oil has a viscosity at 100° C. in the range of from about 2 centistokes to about 8 centistokes, and wherein said undilute viscosity index improver has a viscosity in the range of from about 600 centistokes to about 45,00 centistokes.Type: ApplicationFiled: March 25, 2003Publication date: September 30, 2004Inventors: Vasudevan Balasubramaniam, David J. DeGonia
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Patent number: 6444622Abstract: Mixtures of the reaction product of at least one C5-C60 carboxylic acid and at least one amine selected from the group consisting of guanidine, aminoguanidine, urea, thioruea and salts thereof and a phosphorus-containing dispersant are useful as gear oil additives. Lubricant formulations containing said mixtures exhibit excellent low and high temperature rheology and are particularly suited for use in automotive and industrial gear applications. Lubricants of the present invention exhibit improved performance properties such as increased axle efficiencies and lower axle temperatures compared to lubricant formulations that do not contain said mixtures.Type: GrantFiled: September 11, 2001Date of Patent: September 3, 2002Assignee: Ethyl CorporationInventor: Vasudevan Balasubramaniam
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Publication number: 20020055440Abstract: Mixtures of the reaction product of at least one C5-C60 carboxylic acid and at least one amine selected from the group consisting of guanidine, aminoguanidine, urea, thioruea and salts thereof and a phosphorus-containing dispersant are useful as gear oil additives. Lubricant formulations containing said mixtures exhibit excellent low and high temperature rheology and are particularly suited for use in automotive and industrial gear applications. Lubricants of the present invention exhibit improved performance properties such as increased axle efficiencies and lower axle temperatures compared to lubricant formulations that do not contain said mixtures.Type: ApplicationFiled: September 11, 2001Publication date: May 9, 2002Inventor: Vasudevan Balasubramaniam
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Patent number: 6303547Abstract: The reaction product of at least one C5-C60 carboxylic acid and at least one amine selected from the group consisting of guanidine, aminoguanidine, urea, thioruea and salts thereof is useful as a gear oil additive. The lubricant formulations exhibit excellent low and high temperature rheology and are particularly suited for use in automotive and industrial gear applications. Lubricants of the present invention exhibit improved performance properties, such as increased axle efficiencies and lower axle temperatures, improved limited slip performance, reduced chatter, improved frictional durability and/or improved power divider performance compared to lubricant formulations that do not contain said reaction products.Type: GrantFiled: September 19, 2000Date of Patent: October 16, 2001Assignee: Ethyl CorporationInventor: Vasudevan Balasubramaniam
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Patent number: 5573696Abstract: Additives are produced by (i) reacting an O,O-dihydrocarbyl phosphorodithioic acid with a monoepoxide or mixture of monoepoxides having in the range of 20 to about 30 carbon atoms in the molecule or a vegetable oil epoxide such as epoxidized soybean oil or methyl epoxy soyate, (ii) reacting the product with phosphorus pentoxide to produce an acid phosphate intermediate, and (iii) neutralizing the intermediate with at least one amine. At least 50 mole %, and preferably all, of the hydrocarbyl groups of the O,O-dihydrocarbyl phosphorodithioic acid are secondary acyclic hydrocarbyl groups free of acetylenic unsaturation. The additives are multifunctional in that they have limited slip properties, antiwear/extreme pressure properties, and corrosion inhibiting properties.Type: GrantFiled: February 29, 1996Date of Patent: November 12, 1996Assignee: Ethyl CorporationInventors: Joe Hughes, Rolfe J. Hartley, Vasudevan Balasubramaniam
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Patent number: 5500140Abstract: Additives are produced by (i) reacting an O,O-dihydrocarbyl phosphorodithioic acid with a monoepoxide or mixture of monoepoxides having in the range of 20 to about 30 carbon atoms in the molecule, (ii) reacting the product with phosphorus pentoxide to produce an acid phosphate intermediate, and (iii) neutralizing the intermediate with at least one amine. At least 50 mole % , and preferably all, of the hydrocarbyl groups of the O,O-dihydrocarbyl phosphorodithioic acid are secondary acyclic hydrocarbyl groups free of acetylenic unsaturation. The balance, if any, of such hydrocarbyl groups are primary acyclic hydrocarbyl groups free of acetylenic unsaturation. The additives are multifunctional in that they have limited slip properties, antiwear/extreme pressure properties, and corrosion inhibiting properties.Type: GrantFiled: March 31, 1995Date of Patent: March 19, 1996Assignee: Ethyl CorporationInventors: Joe Hughes, Rolfe J. Hartley, Vasudevan Balasubramaniam