Patents by Inventor Suzanne C. Fleming

Suzanne C. Fleming 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).

  • Composition comprising the addition product of a vinyl-sulfone dye and a secondary amine and process for dyeing a polyamide therewith
    Patent number: 4762524
    Abstract: This invention is directed to a dyestuff composition comprising the reaction product of a water-soluble, vinyl-sulfone type, reactive dye and a N-alkyl-amino-alkyl sulfonic acid and/or carboxylic acid or the salts thereof wherein the N-alkyl-amino-alkyl acid or salt is reacted with said dye in an amount of about 0.5 to 1.0 mole per mole of dye. This dyestuff composition is used to dye synthetic polyamides according to a process where said composition is applied to a polyamide fiber from an aqueous solution having a pH from about 3 to about 4; preferably 3.5 and then fixed to said fiber by heat.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: August 9, 1988
    Assignee: Hoechst Celanese Corporation
    Inventors: Thomas V. Chambers, Manfred Deicke, Suzanne C. Fleming