Patents by Inventor Anantharaman Dhanabalen

Anantharaman Dhanabalen 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).

  • Copolycarbonates, their derivatives and the use thereof in silicone hardcoat compositions
    Patent number: 8637157
    Abstract: Disclosed herein are novel copolycarbonates containing repeating units A and B respectively of the formulae: (A) —[R1OC(?O)O]—, and (B) —[(R2O)n-C(?O)—O]—, wherein the molar ratio of units (A) to units (B) is in the range of from about 9:1 to about 1:9, and wherein R1 is a divalent C8 to C12 alicyclic group, and R2 is ethylene or propylene, and n is an integer ranging from 4 to 40. Also disclosed are silicone hardcoat compositions containing the copolycarbonates and their derivatives. Upon cure, these silicone hardcoat compositions exhibit improved flexibility as compared to that of the conventional hardcoats while at the same time maintain the abrasion resistance of conventional silicone hardcoats.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: January 28, 2014
    Assignee: Momentive Performance Materials Inc.
    Inventors: Christoph Hilgers, Anantharaman Dhanabalen, Narayana Padmanabha Iyer, Shayne Joseph Landon