Patents by Inventor Paritosh M. Chakrabarti

Paritosh M. Chakrabarti 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).

  • Monoesters derived from ethoxylated higher alcohols and thiodisuccinic acid as detergent builders
    Patent number: 3976586
    Abstract: New monoesters derived from ethoxylated higher alcohols and thiodisuccinic acid having the formula: ##EQU1## in which R is a hydrocarbon having from 12 to 22 carbon atoms, X is sulfur, sulfinyl, or sulfonyl, M is hydrogen, a monovalent metal, ammonium or a salt of ammonium, and n is an integer ranging from 2 to 15, are useful as detergent builders and are particularly suitable for hard water detergents. In preferred esters, R is alkyl or alkenyl, X is sulfur, M is hydrogen or sodium, and n is an integer ranging from 3 to 7.
    Type: Grant
    Filed: October 8, 1975
    Date of Patent: August 24, 1976
    Assignee: GAF Corporation
    Inventor: Paritosh M. Chakrabarti