Patents by Inventor Suresh K. Rajaraman

Suresh K. Rajaraman 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).

  • Publication number: 20220293417
    Abstract: A chemical vapor deposition method for producing a dielectric film, the method comprising: providing a substrate into a reaction chamber; introducing gaseous reagents into the reaction chamber wherein the gaseous reagents comprise a silicon precursor comprising a silicon compound having the formula RnH4-nSi as defined herein and applying energy to the gaseous reagents in the reaction chamber to induce reaction of the gaseous reagents to deposit a film on the substrate. The film as deposited is suitable for its intended use without an optional additional cure step applied to the as-deposited film.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 15, 2022
    Applicant: VERSUM MATERIALS US, LLC
    Inventors: RAYMOND NICHOLAS VRTIS, SURESH K. RAJARAMAN, WILLIAM ROBERT ENTLEY, JENNIFER LYNN ANNE ACHTYL, ROBERT GORDON RIDGEWAY
  • Patent number: 8575292
    Abstract: There is provided a hydroxyl-functional carbamoyl organosilicon compound, an anti-corrosion and/or adhesion promoting coating composition based thereon, a method for coating a metal surface employing the coating composition and the resulting coated metal article.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: November 5, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Shiu-Chin H. Su, Suresh K. Rajaraman, Alexander S. Borovik, Kendall L. Guyer, Eric R. Pohl
  • Patent number: 8470894
    Abstract: The present invention provides for a composition comprising a siloxane having the formula: M1DM2 wherein M1=(R1)(R2)(R3)SiO1/2; M2=(R4)(R5)(R6)SiO1/2 and D=(R7)(Z)SiO2/2 where R1, R2, R3 R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group; Z is a pendant hydrophilic ionic group selected from the group consisting of R8—RA, R9-RC, and R10—RZ; RA being an anionic substituent, RC a cationic substituent or RZ a zwitterionic substituent on the D group wherein said siloxane has an enhanced resistance to hydrolysis at a pH below 6 or a pH above 7.5.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: June 25, 2013
    Assignee: Momentive Performance Materials
    Inventors: Mark D. Leatherman, George A. Policello, Wenqing N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Zijun Xia
  • Patent number: 8367740
    Abstract: An asymmetric organomodified disiloxane surfactant having the formula: MM? wherein M comprises branched hydrocarbon substituents and M? comprises a cationic, anionic or zwitterionic substituent and a polyether substituent that may be combined as one moiety, wherein the disiloxane surfactant has an enhanced resistance to hydrolysis between a pH of about 3 to about 12.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: February 5, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mark D. Leatherman, George A. Policello, Wenqing N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Xia Zijun
  • Patent number: 8362124
    Abstract: The present invention relates to coating and printing ink compositions containing silylated polyether compounds comprising a hydrolysis-resistant bis-silyl hydrocarbylene group. More particularly, the silylated polyether compound comprising a bis-silyl hydrocarbylene group provides to the coating and ink compositions formulation flexibility over the entire pH range, leveling-and-flow and surface wetting, and are non-reactive with the other components of the coating and ink compositions, thereby providing long-term shelf-stability of formulated coatings and inks. These coating and ink compositions containing silylated polyether compounds do not release silicone materials and thereby provide articles treated with these coatings and ink compositions with uniform appearance and gloss.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: January 29, 2013
    Assignee: Momentive Performance Materials Inc.
    Inventors: Suresh K. Rajaraman, Eric R. Pohl, Mark D. Leatherman, George A. Policello
  • Patent number: 8263669
    Abstract: The present invention provides for a composition comprising a siloxane having the formula: M1D M2 wherein M1=(R1)(R2)(R3)SiO1/2; M2=(R4)(R5)(R6)SiO1/2 and D=(R7)(Z)SiO2/2 where R1, R2, R3 R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group; Z is a pendant hydrophilic ionic group selected from the group consisting of R8—RA, R9 Rc and R10—RZ; RA being an anionic substituent, Rc a cationic substituent or Rz a zwitterionic substituent on the D group wherein the composition is resistant to hydrolysis under either basic or acidic conditions.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: September 11, 2012
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mark D. Leatherman, George A. Policello, Wenging N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Xia Zijun
  • Publication number: 20120142535
    Abstract: The present invention provides for a composition comprising a siloxane having the formula: M1DM2 wherein M1=(R1)(R2)(R3)SiO1/2; M2=(R4)(R5)(R6)SiO1/2 and D=(R7)(Z)SiO2/2 where R1, R2, R3, R4, R5, R6 and R7 are each independently selected from the group consisting of 1 to 4 carbon monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 4 to 9 carbons containing an aryl group; Z is a pendant hydrophilic ionic group selected from the group consisting of R8—RA, R9-RC, and R10—RZ; RA being an anionic substituent, RC a cationic substituent or RZ a zwitterionic substituent on the D group wherein said siloxane has an enhanced resistance to hydrolysis at a pH below 6 or a pH above 7.5.
    Type: Application
    Filed: October 3, 2011
    Publication date: June 7, 2012
    Inventors: MARK D. LEATHERMAN, George A. Policello, Wenqing N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Zijun Xia
  • Publication number: 20120100119
    Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups, in conjunction with pendant polyalkylene oxide substituents on the D group render the surfactant resistant to hydrolysis under either basic or acidic conditions outside the pH range of 6.0 to 7.5. The compositions are useful in agricultural, household and cosmetic applications.
    Type: Application
    Filed: December 8, 2011
    Publication date: April 26, 2012
    Applicant: Momentive Performance Materials Inc.
    Inventors: George A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Sophia Xia
  • Publication number: 20120088865
    Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups, in conjunction with pendant polyalkylene oxide substituents on the D group render the surfactant resistant to hydrolysis under either basic or acidic conditions outside the pH range of 6.0 to 7.5. The compositions are useful in agricultural, household and cosmetic applications.
    Type: Application
    Filed: December 8, 2011
    Publication date: April 12, 2012
    Applicant: Momentive Performance Materials Inc.
    Inventors: George A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Sophia Xia
  • Publication number: 20120077776
    Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups, in conjunction with pendant polyalkylene oxide substituents on the D group render the surfactant resistant to hydrolysis under either basic or acidic conditions outside the pH range of 6.0 to 7.5. The compositions are useful in agricultural, household and cosmetic applications.
    Type: Application
    Filed: December 8, 2011
    Publication date: March 29, 2012
    Applicant: Momentive Performance Materials Inc.
    Inventors: George A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Sophia Xia
  • Publication number: 20120064052
    Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups, in conjunction with pendant polyalkylene oxide substituents on the D group render the surfactant resistant to hydrolysis under either basic or acidic conditions outside the pH range of 6.0 to 7.5. The compositions are useful in agricultural, household and cosmetic applications.
    Type: Application
    Filed: June 22, 2011
    Publication date: March 15, 2012
    Applicant: Momentive Performance Materials Inc.
    Inventors: George A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Sophia Xia
  • Publication number: 20110251067
    Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups, in conjunction with pendant polyalkylene oxide substituents on the D group render the surfactant resistant to hydrolysis under either basic or acidic conditions outside the pH range of 6.0 to 7.5. The compositions are useful in agricultural, household and cosmetic applications.
    Type: Application
    Filed: June 22, 2011
    Publication date: October 13, 2011
    Applicant: Momentive Performance Materials Inc.
    Inventors: George A. Policello, Mark D. Leathermani, Wenqing Peng, Suresh K. Rajaraman, Sophia Xia
  • Patent number: 8008231
    Abstract: Compositions comprising an asymmetric disiloxane surfactant composition comprising a silicone composition comprising a silicone having the formula: MM? where M or M? comprises an alkylpolyalkyleneoxide bearing substituent selected from the group consisting of: R13(C2H4O)a(C3H6O)b(C4H8O)cR14 and R12SiR5R6(R13(C2H4O)a(C3H6O)b(C4H8O)cR14) that exhibit resistance to hydrolysis over a wide pH range.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: August 30, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Mark D. Leatherman, George A. Policello, Suresh K. Rajaraman
  • Publication number: 20110201505
    Abstract: An asymmetric organomodified disiloxane surfactant having the formula: MM? wherein M comprises branched hydrocarbon substituents and M? comprises a cationic, anionic or zwitterionic substituent and a polyether substituent that may be combined as one moiety, wherein the disiloxane surfactant has an enhanced resistance to hydrolysis between a pH of about 3 to about 12.
    Type: Application
    Filed: December 26, 2008
    Publication date: August 18, 2011
    Inventors: Mark D. Leatherman, George A. Policello, Wenqing N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Xia Zijun
  • Publication number: 20110184074
    Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups in conjunction with a pendant polyalkylene oxide substituents on the D group to render the surfactant resistant to hydrolysis under either basic or acidic conditions.
    Type: Application
    Filed: April 6, 2011
    Publication date: July 28, 2011
    Applicant: Momentive Performance Materials Inc.
    Inventors: George A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Zijun Xia
  • Patent number: 7964032
    Abstract: The present invention relates to coating and printing ink compositions possessing silicone surfactants compositions comprising fluorine-free organomodified trisiloxanes which are resistant to hydrolysis between a pH of about 3 to a pH of about 12. The coatings and printing ink composition of the present invention exhibit enhanced wetting, flow and leveling properties.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: June 21, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Suresh K. Rajaraman, Alain Lejeune, Alexander Borovik, George A. Policello, Mark D. Leatherman, Wenqing Peng, Zijun Xia
  • Publication number: 20110105428
    Abstract: The present invention provides for a composition comprising a silane having the formula: (R1)(R2)(R3)Si—R4—Si(R5)(R6)(R7) wherein R1, R2, R3, R5, and R6 are each independently selected from the group consisting of 1 to 6 monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 7 to 10 carbons containing an aryl group; R4 is a hydrocarbon group of 1 to 3 carbons; R7 comprises an anionic, cationic or zwitterionic substituent. The silanes of the present invention exhibit resistance to hydrolysis over a wide pH range.
    Type: Application
    Filed: November 29, 2010
    Publication date: May 5, 2011
    Applicant: Momentive Performance Materials Inc.
    Inventors: Mark D. LEATHERMAN, George A. Policello, Wenqing Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Zijun Xia
  • Patent number: 7935842
    Abstract: Three types of trisiloxane surfactants having the basic formula: MDM? are described wherein the substituents on the differing M and M? groups in conjunction with a pendant polyalkylene oxide substituents on the D group to render the surfactant resistant to hydrolysis under either basic or acidic conditions.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: May 3, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: George A. Policello, Mark D. Leatherman, Wenqing Peng, Suresh K. Rajaraman, Zijun Xia
  • Patent number: 7902314
    Abstract: Disclosed herein is a composition comprising a structure (M1)a(ME)b(D1)c(D2)d(T)e(Q)f, wherein M1=R1R2R3SiO1/2; ME=R4R5RESiO1/2; D1=R6R7SiO2/2; D2=R8R9SiO2/2; T=R10SiO3/2; and Q=SiO4/2; wherein each RE is independently a monovalent hydrocarbon radical containing an epoxy group; R9 comprises a structure -L1-Si(R11)g(OR12)3-g or L2(D3)h(M2)i-L3-Si(R13)g?(OR14)3-g?, wherein L1, L2, and L3 are independently divalent linking groups; g and g? independently have a value from 0 to 2; M2=R15R16R17SiO1/2; D3=R18R19SiO2/2; wherein R1, R2, R3, R4, R5, R6, R7, R8, R10, R11, R12, R13, R14, R15, R16, R17, R18, and R19 are independently monovalent hydrocarbon radicals; wherein a, b, c, d, e, f, h, and i are stoichiometric subscripts that are zero or positive subject to the following limitations: b has a value of 2; d is greater than or equal to 1; when (a+c+e+f) is equal to zero, (b+d) is greater than or equal to 3; and when i=0, h is at least 1.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 8, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Joseph Edward Nesakumar, Ganesh Kannan, Vikram Kumar, Hariharan Ramalingam, Mark D. Leatherman, Suresh K. Rajaraman
  • Patent number: 7887785
    Abstract: A personal care composition comprising a silicone resin of the generic formula: MQ, wherein the ratio of M to Q is about from 0.01/1 to about 3.96/1; MxDyTz, wherein x is about 0.01 to about 3,900,000, y is about 0.035 to about 10,000,000, z is about 0.35 to about 8,000,000; TD, wherein the ratio of T to D is about 0.001/1 to about 73/1; or a combination comprising at least one of the foregoing resins, wherein the resin or resin combination is present in an amount effective to increase the SPF of the formulation at least about 10% over the same formulation without the resin or resin combination. The silicone resins are easily formulated, provide a unique non-tacky sensory experience and exhibit advantageous spreadability while permitting the introduction of additional functional benefits such as homogeneity, better organic compatibility, reduced skin irritation and improved skin feel or shine.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: February 15, 2011
    Assignee: Momentive Performance Materials Inc.
    Inventors: Roy U. Rojas-Wahl, An-Li Kuo, Suresh K. Rajaraman