Patents by Inventor Sithamalli Chandramouli

Sithamalli Chandramouli 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).

  • Carbamates from glycerine carbonate for pearlization
    Patent number: 9474916
    Abstract: Alkyl and/or alkenyl glycerol carbamate prepared by reacting a carbonate selected from the group consisting of glycerol carbonate, diglycerol carbonate, polyglycerol carbonate and mixtures thereof, with an amine of the general formula (I): HNR1R2??(I) wherein R1 represents a hydrogen atom or a hydrocarbon group selected from the group consisting of alkyl groups and alkenyl groups having from 1 to 22 carbon atoms and R2 represents a hydrocarbon group selected from the group consisting of alkyl groups and alkenyl groups having from 4 to 22 carbon atoms, and cyclic alkyl groups having 5 or 6 carbon atoms, are described along with methods for their use as pearlizing agents in surface-active preparations.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: October 25, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Bin Gu, Brajesh Jha, Sithamalli Chandramouli, Jie Yang
  • Carbamates from Glycerine Carbonate for Pearlization
    Publication number: 20150044264
    Abstract: Alkyl and/or alkenyl glycerol carbamate prepared by reacting a carbonate selected from the group consisting of glycerol carbonate, diglycerol carbonate, polyglycerol carbonate and mixtures thereof, with an amine of the general formula (I): HNR1R2??(I) wherein R1 represents a hydrogen atom or a hydrocarbon group selected from the group consisting of alkyl groups and alkenyl groups having from 1 to 22 carbon atoms and R2 represents a hydrocarbon group selected from the group consisting of alkyl groups and alkenyl groups having from 4 to 22 carbon atoms, and cyclic alkyl groups having 5 or 6 carbon atoms, are described along with methods for their use as pearlizing agents in surface-active preparations.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 12, 2015
    Inventors: Bin Gu, Brajesh Jha, Sithamalli Chandramouli, Jie Yang