Patents by Inventor George Dukes Crosby

George Dukes Crosby 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 the thermal and photochemical stabilization of dyed polyamide fiber material
    Patent number: 7527656
    Abstract: A process for enhancing the thermal, oxidative and photochemical stability of dyed or printed polyamide fiber material, comprises treating the polyamide fiber material, before, during or after a dyeing or printing step, with an effective stabilizing amount of a stabilizer mixture which comprises at least one compound of the formula and at least one compound of the formula in which R1 and R1? independently of one another are each linear or branched C1-C18alkyl, C3-C8cycloalkyl, C3-C6alkenyl, unsubstituted or substituted aryl or C7-C12aralkyl, and R2, R2?, R3, R3?, R4 and R5 are as described herein. The treated polyamide fiber materials have excellent thermal, oxidative and photochemical stability.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: May 5, 2009
    Assignee: Huntsman International LLC
    Inventors: Bruce Owen Griffin, Jack Thurman Larkins, Jr., George Dukes Crosby