Patents by Inventor Surinder Ahluwalia

Surinder Ahluwalia 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).

  • Cellulose ester resin stabilizer and cellulose ester resin compositions stabilized therewith
    Patent number: 5225467
    Abstract: Nonylphenyl neopentylene phosphite, or stated in terms of systematic nomenclature 5,5-dimethyl-2-nonylphenoxy-1,3,2-dioxaphosphorinane, compositions effective to stabilize cellulose ester resins against the degradative effects of heat and processing are disclosed. In accordance with the present invention, preferred stabilizing compositions for cellulose ester resins include nonylphenyl neopentylene phosphite in combination with epoxidized linseed oil. These stabilizing compositions demonstrate their stabilizing effectiveness by maintaining the melt viscosity of the polymer during hot working and minimizing discoloration of the polymer when heated.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: July 6, 1993
    Assignee: Witco Corporation
    Inventors: Surinder Ahluwalia, Michael H. Fisch, R. David Peveler