Patents Represented by Attorney S. M. Nolan

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  • Benzoxazine dyes
    Patent number: 5055110
    Abstract: Novel benzoxazine compounds of the structure ##STR1## wherein X and Y are independently selected from the group hydrogen, alkyl, alkoxyalkyl, aminoalkyl, hydroxyalkyl and hydroxyaminoalkyl, each alkyl moiety having 1 to 6 carbons, and m=1, 2 or 3, have been found suitable as hair dyes.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: October 8, 1991
    Assignee: Clairol Incorporated
    Inventors: Mu-Ill Lim, Nancy A. Botta
  • Indole-aldehyde hair dyes
    Patent number: 4932977
    Abstract: Combined indole-aldehyde compositions for dyeing natural fibers, particularly for coloring human hair, are taught wherein the combined indole-aldehyde composition is either preformed or reacted in site on the natural fiber under acidic conditions. A method employing said compositions is also taught.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: June 12, 1990
    Assignee: Clairol Incorporated
    Inventor: Thomas M. Schultz
  • Novel dyeing system
    Patent number: 4921503
    Abstract: Substituted 3-aryl amino-indoline-2-ones, produced by the reaction of certain isatins and amines are among a group of compounds useful as hair colorants. The hair itself appears to function as a dye-formation promoter, so that no oxidative reagents are needed.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: May 1, 1990
    Assignee: Clairol Incorporated
    Inventors: James S. Anderson, Thomas M. Schultz