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).

  • Patent number: 11124729
    Abstract: 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: Grant
    Filed: June 1, 2017
    Date of Patent: September 21, 2021
    Assignee: BASF SE
    Inventors: Arjun K. Goyal, Vasudevan Balasubramaniam
  • Publication number: 20200172826
    Abstract: 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: Application
    Filed: August 28, 2018
    Publication date: June 4, 2020
    Inventors: Vasudevan Balasubramaniam, Keith Denivo, Thomas Ruehle, Jochen Wagner
  • Patent number: 9783761
    Abstract: 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: Grant
    Filed: March 8, 2012
    Date of Patent: October 10, 2017
    Assignee: COGNIS IP MANAGEMENT GmbH
    Inventors: Vasudevan Balasubramaniam, Mark Witschger, Uwe Förster
  • Publication number: 20170044459
    Abstract: 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: Application
    Filed: October 28, 2016
    Publication date: February 16, 2017
    Inventors: Arjun K. Goyal, Vasudevan Balasubramaniam, Nawid Kashani-Shirazi, Muriel Ecormier, Markus Hansch, Claudia Fischer, Thomas Weiß, Markus Scherer
  • Patent number: 8877324
    Abstract: 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: Grant
    Filed: March 7, 2012
    Date of Patent: November 4, 2014
    Assignee: Cognis IP Management GmbH
    Inventors: Dharakumar Metla, Vasudevan Balasubramaniam, Matthew Bianchi
  • Patent number: 8802739
    Abstract: 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: Grant
    Filed: April 12, 2011
    Date of Patent: August 12, 2014
    Assignee: Cognis IP Management GmbH
    Inventors: John Mangano, Vasudevan Balasubramaniam, Daniel Herzog
  • Publication number: 20120289445
    Abstract: 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: Application
    Filed: March 8, 2012
    Publication date: November 15, 2012
    Applicant: Cognis IP Management GmbH
    Inventors: Vasudevan Balasubramaniam, Mark Witschger, Uwe Förster
  • Publication number: 20120231235
    Abstract: 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: Application
    Filed: March 7, 2012
    Publication date: September 13, 2012
    Applicant: Cognis IP Management GmbH
    Inventors: Dharakumar Metla, Vasudevan Balasubramaniam, Matthew Bianchi
  • Publication number: 20120190799
    Abstract: 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: Application
    Filed: September 21, 2011
    Publication date: July 26, 2012
    Applicant: Cognis IP Management GmbH
    Inventors: Natesh Anbazhagan, Sudhir Ananthachar, Alexander Y. Polykarpov, Shailesh C. Shah, Vasudevan Balasubramaniam
  • Publication number: 20110248213
    Abstract: 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: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicant: COGNIS IP MANAGEMENT GMBH
    Inventors: John Mangano, Vasudevan Balasubramaniam, Daniel Herzog
  • Publication number: 20110111996
    Abstract: 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: Application
    Filed: November 8, 2010
    Publication date: May 12, 2011
    Applicant: COGNIS IP MANAGEMENT GMBH
    Inventors: Stephen Lakes, Mark Witschger, Vasudevan Balasubramaniam
  • Publication number: 20040192564
    Abstract: 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: Application
    Filed: March 25, 2003
    Publication date: September 30, 2004
    Inventors: Vasudevan Balasubramaniam, David J. DeGonia
  • Patent number: 6444622
    Abstract: 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: Grant
    Filed: September 11, 2001
    Date of Patent: September 3, 2002
    Assignee: Ethyl Corporation
    Inventor: Vasudevan Balasubramaniam
  • Publication number: 20020055440
    Abstract: 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: Application
    Filed: September 11, 2001
    Publication date: May 9, 2002
    Inventor: Vasudevan Balasubramaniam
  • Patent number: 6303547
    Abstract: 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: Grant
    Filed: September 19, 2000
    Date of Patent: October 16, 2001
    Assignee: Ethyl Corporation
    Inventor: Vasudevan Balasubramaniam
  • Patent number: 5573696
    Abstract: 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: Grant
    Filed: February 29, 1996
    Date of Patent: November 12, 1996
    Assignee: Ethyl Corporation
    Inventors: Joe Hughes, Rolfe J. Hartley, Vasudevan Balasubramaniam
  • Patent number: 5500140
    Abstract: 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: Grant
    Filed: March 31, 1995
    Date of Patent: March 19, 1996
    Assignee: Ethyl Corporation
    Inventors: Joe Hughes, Rolfe J. Hartley, Vasudevan Balasubramaniam