Patents by Inventor Sean P. N. Rouse

Sean P. N. Rouse 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).

  • Co-polymers in hair styling applications
    Patent number: 8778314
    Abstract: Hair is treated with a copolymer of an unsaturated ester and a styrene sulphonate monomer to reducing damage to hair caused by subsequent heat treatment. The styrene sulphonate monomer is desirably sodium styrene sulphonate and the unsaturated ester is desirably of an unsaturated monocarboxylic acid, such as (meth)acrylic acid, or dicarboxylic acid, such as maleic acid, and an alcohol, desirably an alkoxylated alcohol such as ethoxylated lanolin alcohol. Formulations for hair treatment generally include from about 0.5 to about 25% by weight of the copolymer.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: July 15, 2014
    Assignee: Croda International PLC
    Inventors: Debra L. Jones, Sylvie L. Reid, Sean P. N. Rouse