Patents by Inventor Ganapathy S. Viswanathan

Ganapathy S. Viswanathan 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: 11161976
    Abstract: The embodiments described herein generally relate to methods and chemical compositions of phenolic epoxy systems. In one embodiment, a composition comprising a phenolic epoxy resin system includes an epoxy resin component and an alkoxylated phenol-aldehyde novolac resin.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: November 2, 2021
    Assignee: HEXION VAD LLC
    Inventors: Kimberly Goodwin, Ganapathy S. Viswanathan, Scott Peace, Anthony Maiorana, Vishal Patil
  • Patent number: 11028219
    Abstract: A process comprising, consisting of, or consisting essentially of: forming a reaction mixture containing at least one polyisocyanate and an isocyanate-reactive compound comprising at least one alkoxylated triazine-arylhydroxy-aldehyde condensate composition wherein the alkoxylated triazine-arylhydroxy-aldehyde condensate composition is a reaction product of a triazine-arylhydroxy-aldehyde condensate and at least one alkylene carbonate, is disclosed.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: June 8, 2021
    Assignee: HEXION INC.
    Inventors: Ganapathy S. Viswanathan, Anthony Maiorana, Stephan Schröter, Pravin Kukkaia
  • Publication number: 20200399461
    Abstract: The embodiments described herein generally relate to methods and chemical compositions of phenolic epoxy systems. In one embodiment, a composition comprising a phenolic epoxy resin system includes an epoxy resin component and an alkoxylated phenol-aldehyde novolac resin.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 24, 2020
    Inventors: Kimberly GOODWIN, Ganapathy S. VISWANATHAN, Scott PEACE, Anthony MAIORANA, Vishal PATIL
  • Patent number: 10640475
    Abstract: The embodiments described herein generally relate to methods and chemical compositions of triazine-arylhydroxy-aldehyde condensates. In one embodiment, a triazine-arylhydroxy-aldehyde condensate is reacted with at alkoxylation agent to form alkoxylated triazine-arylhydroxy-aldehyde condensates.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 5, 2020
    Assignee: HEXION INC.
    Inventors: Ganapathy S. Viswanathan, Anthony Maiorana, Stephan Schröter, Pravin Kukkala
  • Patent number: 10604614
    Abstract: The embodiments described herein generally relate to methods and chemical compositions of triazine-arylhydroxy-aldehyde condensates. In one embodiment, a triazine-arylhydroxy-aldehyde condensate is reacted with at alkoxylation agent to form alkoxylated triazine-arylhydroxy-aldehyde condensates.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: March 31, 2020
    Assignee: Hexion Inc.
    Inventors: Ganapathy S. Viswanathan, Anthony Maiorana, Stephan Schröter, Pravin Kukkala
  • Publication number: 20190092894
    Abstract: The embodiments described herein generally relate to methods and chemical compositions of triazine-arylhydroxy-aldehyde condensates. In one embodiment, a triazine-arylhydroxy-aldehyde condensate is reacted with at alkoxylation agent to form alkoxylated triazine-arylhydroxy-aldehyde condensates.
    Type: Application
    Filed: July 24, 2018
    Publication date: March 28, 2019
    Inventors: Ganapathy S. VISWANATHAN, Anthony Maiorana, Stephan Schröter, Pravin Kukkala
  • Publication number: 20190092736
    Abstract: The embodiments described herein generally relate to methods and chemical compositions of triazine-arylhydroxy-aldehyde condensates. In one embodiment, a triazine-arylhydroxy-aldehyde condensate is reacted with at alkoxylation agent to form alkoxylated triazine-arylhydroxy-aldehyde condensates.
    Type: Application
    Filed: July 24, 2018
    Publication date: March 28, 2019
    Inventors: Ganapathy S. VISWANATHAN, Anthony Maiorana, Stephan Schröter, Pravin Kukkala
  • Publication number: 20190092897
    Abstract: A process comprising, consisting of, or consisting essentially of: foaming a reaction mixture containing at least one polyisocyanate and an isocyanate-reactive compound comprising at least one alkoxylated triazine-arylhydroxy-aldehyde condensate composition wherein the alkoxylated triazine-arylhydroxy-aldehyde condensate composition is a reaction product of a triazine-arylhydroxy-aldehyde condensate and at least one alkylene carbonate, is disclosed.
    Type: Application
    Filed: September 22, 2017
    Publication date: March 28, 2019
    Inventors: Ganapathy S. VISWANATHAN, Anthony Maiorana, Stephan Schröter, Pravin Kukkala
  • Patent number: 9790313
    Abstract: Disclosed are curing compositions for resin systems and in particular for phenolic resin systems and epoxy resin systems, to methods of preparing the curing compositions and to resin systems incorporating same. The curing compositions of the invention are the reaction product of an aldehyde with an amine in the presence of an aprotic solvent.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: October 17, 2017
    Assignee: HEXION INC.
    Inventors: Ganapathy S. Viswanathan, Craig M. Zirkle
  • Publication number: 20160168306
    Abstract: Compositions and methods for forming condensates and resin compositions are provided. In one embodiment, a condensate is formed from a reaction mixture including a triazine monomer, an arylhydroxy monomer, an aldehyde monomer and an acid catalyst having a pKa value of greater than 3.8. The condensates contain up to 28 wt. % of nitrogen and have a melt viscosity of 3,000 cps or less at 175° C. The condensates may have a solubility of at least 80 wt. % solids dissolved in an organic solvent for 120 hours or greater. Also disclosed are methods for the manufacture of the condensate as well as the condensate's use in fire-retardant epoxy resin compositions suitable for the manufacture of laminates for electronic applications. There is also disclosed a glycidylated triazine-arylhydroxy-aldehyde condensate of this invention.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 16, 2016
    Inventors: Ganapathy S. VISWANATHAN, Vinay MALHOTRA
  • Publication number: 20160053043
    Abstract: Disclosed are curing compositions for resin systems and in particular for phenolic resin systems and epoxy resin systems, to methods of preparing the curing compositions and to resin systems incorporating same. The curing compositions of the invention are the reaction product of an aldehyde with an amine in the presence of an aprotic solvent.
    Type: Application
    Filed: August 20, 2015
    Publication date: February 25, 2016
    Inventors: Ganapathy S. VISWANATHAN, Craig M. ZIRKLE
  • Patent number: 9249251
    Abstract: Compositions and methods for forming condensates and resin compositions are provided. In one embodiment, a condensate is formed from a reaction mixture including a triazine monomer, an arylhydroxy monomer, an aldehyde monomer and an acid catalyst having a pKa value of greater than 3.8. The condensates contain up to 28 wt. % of nitrogen and have a melt viscosity of 3,000 cps or less at 175° C. The condensates may have a solubility of at least 80 wt. % solids dissolved in an organic solvent for 120 hours or greater. Also disclosed are methods for the manufacture of the condensate as well as the condensate's use in fire-retardant epoxy resin compositions suitable for the manufacture of laminates for electronic applications. There is also disclosed a glycidylated triazine-arylhydroxy-aldehyde condensate of this invention.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: February 2, 2016
    Assignee: HEXION INC.
    Inventors: Ganapathy S. Viswanathan, Raman C. Subrayan, Vinay Malhotra
  • Publication number: 20120046424
    Abstract: Compositions and methods for forming condensates and resin compositions are provided. In one embodiment, a condensate is formed from a reaction mixture including a triazine monomer, an arylhydroxy monomer, an aldehyde monomer and an acid catalyst having a pKa value of greater than 3.8. The condensates contain up to 28 wt. % of nitrogen and have a melt viscosity of 3,000 cps or less at 175° C. The condensates may have a solubility of at least 80 wt. % solids dissolved in an organic solvent for 120 hours or greater. Also disclosed are methods for the manufacture of the condensate as well as the condensate's use in fire-retardant epoxy resin compositions suitable for the manufacture of laminates for electronic applications. There is also disclosed a glycidylated triazine-arylhydroxy-aldehyde condensate of this invention.
    Type: Application
    Filed: August 17, 2010
    Publication date: February 23, 2012
    Inventors: Ganapathy S. Viswanathan, Raman C. Subrayan, Vinay Malhotra