Patents by Inventor Ramesh L. Narayan

Ramesh L. Narayan 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: 6809127
    Abstract: A radiation-curable composition is comprised of the reaction product of an amine-terminated (poly)aminoamide and a mono-(meth)acrylate or a poly-(meth)acrylate. The radiation-curable composition is a liquid at room temperature and does not undergo substantial volume contraction upon curing and exhibit excellent adhesion to porous and non porous substrates alike.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: October 26, 2004
    Assignee: Cognis Corporation
    Inventors: Miguel A. Dones, Anbazhagan Natesh, Daniel Haile, Ramesh L. Narayan
  • Patent number: 6576736
    Abstract: Products of the reaction between I) the reaction product of reactants comprising A) a linking agent of formula I R4(Y)3  (I)  wherein each Y group is a halogen atom or one Y group is a halogen atom and two Y groups represent an oxygen atom, which is attached to two adjacent carbon atoms in the R4 group to form an epoxy group, and R4 is an alkanetriyl group containing from 3 to 10 carbon atoms; and B) a compound formula II R3(EO)n(PO)m(BO)pX  (II)  wherein R3 is a substituted or unsubstituted, saturated or unsaturated, aliphatic or araliphatic oxy or thio group having from 1 to 36 carbon atoms or a secondary amino group having from 2 to 36 carbon atoms; n is a number of from 0 to 50; m is a number of from 0 to 50; p is a number of from 0 to 50; and X is hydrogen, or X can be a mercapto group or an amino group in place of a terminal —OH group, provided that when X is mercapto or amino; the sum of n, m, and p must be at least 1; and the mole ratio of A:B is from about 0
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: June 10, 2003
    Assignee: Cognis Corporation
    Inventors: Michael S. Wiggins, Ronald W. Broadbent, Ramesh L. Narayan, Ayaz Khan
  • Publication number: 20030073756
    Abstract: A radiation-curable composition is comprised of the reaction product of an amine-terminated (poly)aminoamide and a mono-(meth)acrylate or a poly-(meth)acrylate. The radiation-curable composition is a liquid at room temperature and does not undergo substantial volume contraction upon curing and exhibit excellent adhesion to porous and non porous substrates alike.
    Type: Application
    Filed: September 13, 2002
    Publication date: April 17, 2003
    Inventors: Miguel A. Dones, Anbazhagan Natesh, Daniel Haile, Ramesh L. Narayan
  • Patent number: 6540942
    Abstract: Nonaqueous compositions comprising at least one product of the reaction between A) a linking agent of formula I R4(Y)3  (I) Wherein each Y group is a halogen atom or one Y group is a halogen atom and two Y groups represent an epoxy oxygen atom, which is attached to two adjacent carbon atoms in the R4 group to form an epoxy group, and R4 is an alkanetriyl group containing from 3 to 10 carbon atoms; and B) a compound of formula II R3(EO)n(PO)m(BO)pX  (II) Wherein R3 is substituted or unsubstituted, saturated or unsaturated, organic oxy or thio group having from 1 to 36 carbon atoms or a primary or secondary amino group having from 1 to 36 carbon atoms; n is a number of from 0 to 50; m is a number of from 0 to 50; p is a number of from 0 to 50; and X is hydrogen, or X can be a mercapto group, an amino group, or a C1-C6 alkylamino group in place of a terminal —OH group, provided that when X is mercapto, amino or a C1-C6 alkylamino, the sum of n, m, and p must be at least 1; and the
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: April 1, 2003
    Assignee: Cognis Corporation
    Inventors: Miguel A. Dones, Ramesh L. Narayan
  • Publication number: 20020169258
    Abstract: Products of the reaction between
    Type: Application
    Filed: March 6, 2002
    Publication date: November 14, 2002
    Inventors: Michael S. Wiggins, Ronald W. Broadbent, Ramesh L. Narayan, Ayaz Khan
  • Publication number: 20020123537
    Abstract: Nonaqueous compositions comprising at least one product of the reaction between
    Type: Application
    Filed: October 15, 2001
    Publication date: September 5, 2002
    Inventors: Miguel A. Dones, Ramesh L. Narayan
  • Patent number: 6316517
    Abstract: Radiation-polymerizable compositions are especially useful as or in a flush vehicle for making flushed pigments. The compositions contain at least one radiation-curable acrzylated resin component and a copolymerizable rheology modifier component.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: November 13, 2001
    Assignee: Cognis Corporation
    Inventors: Miguel A. Dones, Ramesh L. Narayan