Patents by Inventor Ramannair S. Premachandran

Ramannair S. Premachandran 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).

  • Pyrrolidone-carboxylic modified polysiloxanes having aqueous and detergent solubilities and water-in-oil emulsion capability
    Patent number: 8053513
    Abstract: The properties of 2-pyrrolidone-4-carboxylic substituted polysiloxanes can be dramatically altered by increasing the presence of the carboxylic-substituted pyrrolidone monomer of the polysiloxane, such that the amidopolysiloxane has an acid equivalent weight of about 3:00-3,000 daltons and a molecular weight average Mw of about 1,000-60,000 daltons resulting in enhanced detergent and water solubilities and the ability to form water-in-oil emulsions thereby providing usefulness across a broad range of formulations having enhanced electrolytic and silicone and/or hydrocarbon compatibility and cleansing properties.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 8, 2011
    Assignee: Uniqema Americas LLC
    Inventors: John L Gormley, Ramannair S Premachandran, Steven J Anderson
  • Pyrrolidone-Carboxylic Modified Polysiloxanes Having Aqueous and Detergent Solubilities and Water-In-Oil Emulsion Capability
    Publication number: 20080138301
    Abstract: The properties of 2-pyrrolidone-4-carboxylic substituted polysiloxanes can be dramatically altered by increasing the presence of the carboxylic-substituted pyrrolidone monomer of the polysiloxane, such that the amidopolysiloxane has an acid equivalent weight of about 3:00-3,000 daltons and a molecular weight average Mw of about 1,000-60,000 daltons resulting in enhanced detergent and water solubilities and the ability to form water-in-oil emulsions thereby providing usefulness across a broad range of formulations having enhanced electrolytic and silicone and/or hydrocarbon compatibility and cleansing properties.
    Type: Application
    Filed: April 28, 2005
    Publication date: June 12, 2008
    Applicant: Croda Uniqema Inc.
    Inventors: John L. Gormley, Ramannair S. Premachandran, Steven J. Anderson
  • Method for obtaining high density green ceramics from powders
    Patent number: 5580832
    Abstract: A method of forming a highly dispersed ceramic powder slurry is provided prising forming an aqueous based slurry of a ceramic powder and a polyelectrolyte at an acidic pH and adjusting the pH of the slurry to an alkaline value.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: December 3, 1996
    Assignee: The United States of America as represented by the Secretary of Commerce
    Inventors: Subhaschandra G. Malghan, Ramannair S. Premachandran