Patents by Inventor Bhimrao Dhondiba Sarwade

Bhimrao Dhondiba Sarwade 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).

  • Process for preparing a cross linking catalyst from cashew nut shell liquid
    Patent number: 9133089
    Abstract: A process for synthesis of sulfonated, arylated 3-pentadecyl phenol (cross linking catalyst) of formula I starting from Cashew Nut Shell Liquid. Formula I wherein R is benzenesulfonic acid; X is —SO3H, where n is 0 or 1; wherein the process steps comprises hydrogenating cardanol with 5% Pd/C in presence of lower alcoholic solvent at 70° C. under 600 psi hydrogen pressure to obtain 3-pentadecyl phenol; arylating 3-pentadecyl phenol to obtain 3-pentadecyl diphenyl ether; and sulfonating the 3-pentadecyl diphenyl ether to obtain compound of formula I.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: September 15, 2015
    Assignee: Counsel of Scientific & Industrial Research
    Inventors: Prakash Purushottam Wadgaonkar, Bhimrao Dhondiba Sarwade, Bhausaheb Vilas Tawade
  • PROCESS FOR PREPARING A CROSS LINKING CATALYST FROM CASHEW NUT SHELL LIQUID
    Publication number: 20140357891
    Abstract: The present invention discloses synthesis of sulfonated, alkylated/arylated 3-pentadecyl phenols, (cross linking catalysts) starting from 3-pentadecyl phenol obtained from Cashew Nut Shell Liquid (CNSL).
    Type: Application
    Filed: December 5, 2012
    Publication date: December 4, 2014
    Inventors: Prakash Purushottam Wadgaonkar, Bhimrao Dhondiba Sarwade, Bhausaheb Vilas Tawade