Patents by Inventor Murugappa Vedachalam

Murugappa Vedachalam 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).

  • Purification of 1,1-disubstituted ethylene
    Patent number: 8829225
    Abstract: An improvement in the production of 1,1-disubstituted ethylenes is attained by contacting a 1,1-disubstituted ethylene with alumina and separating the alumina to obtain a 1,1-disubstituted ethylene with a good combination of cost, purity, shelf life and cure rate.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: September 9, 2014
    Assignee: OptMed, Inc.
    Inventors: Francis McConville, John Gregory Reid, Murugappa Vedachalam
  • 1,1-DISUBSTITUTED ETHYLENE PROCESS
    Publication number: 20130310594
    Abstract: An improvement in the production of 1,1-disubstituted ethylenes is attained by contacting a 1,1-disubstituted ethylene with alumina and separating the alumina to obtain a 1,1-disubstituted ethylene with a good combination of cost, purity, shelf life and cure rate.
    Type: Application
    Filed: January 28, 2013
    Publication date: November 21, 2013
    Applicant: OptMed, Inc.
    Inventors: Francis McConville, John Gregory Reid, Murugappa Vedachalam
  • Process of making D-panthenyl triacetate
    Patent number: 6982346
    Abstract: A process of making D-panthenyl triacetate which includes reacting D-panthenol with acetic anhydride in the presence of the catalyst polymer bound dimethylaminopyridine to form an exothermic mixture. The so-produced acetic acid, and the catalyst are removed from the exothermic mixture which is then neutralized with sodium hydroxide. Sodium acetate in the form of a solid is removed by filtration. The D-panthenyl triacetate is useful in cosmetic compositions.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: January 3, 2006
    Assignee: ISP Investments Inc.
    Inventors: Jon Kirk Smith, Zongzheng Liu, Murugappa Vedachalam, David Compton
  • Process of making D-panthenyl triacetate
    Publication number: 20050002972
    Abstract: A process of making D-panthenyl triacetate which includes reacting D-panthenol with acetic anhydride in the presence of the catalyst polymer bound dimethylaminopyridine to form an exothermic mixture. The so-produced acetic acid, and the catalyst are removed from the exothermic mixture which is then neutralized with sodium hydroxide. Sodium acetate in the form of a solid is removed by filtration. The D-panthenyl triacetate is useful in cosmetic compositions.
    Type: Application
    Filed: July 1, 2003
    Publication date: January 6, 2005
    Inventors: Jon Smith, Zongzheng Liu, Murugappa Vedachalam, David Compton
  • Process for producing 2,6-dihydroxy-3,4-dialkylpyridines
    Patent number: 6624307
    Abstract: Commercially viable process for producing 2,6-dihydroxy-3,4-dimethlpridine. The process includes reacting 2-cyanoacetamide with sodium methoxide followed by condensation with ethyl 2-methylacetoacetate in methanol to give the sodium salt of 2,6-dihydroxy-4,5-dimethyl-3-pyridinecarbonitrile. The sodium salt of 2,6-dihydroxy-4,5-dimethyl-3-pyridinecarbonitrile is hydrolyzed with hydrobromic acid and decarboxylated to the hydrobromide salt of 2,6-dihydroxy-3,4-dimethylpyridine. The desired 2,6-dihydroxy-3,4-dimethylpyridine is produced from the hydrobromide salt by neutralizing the same with sodium hydroxide.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: September 23, 2003
    Assignee: ISP Investments Inc.
    Inventors: Murugappa Vedachalam, Jon Kirk Smith