Patents by Inventor Virginia Van Valkenburg Powell

Virginia Van Valkenburg Powell 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).

  • Patent number: 6090885
    Abstract: A silicone emulsion useful as a component in hair care compositions In a first aspect of the present invention, a silicone emulsion comprises the product of a base catalyzed reaction of an aqueous emulsion of a hydroxy end-stopped polyorganosiloxane and an aminofunctional silane according to the structural formula: ##STR1## wherein: R.sup.1 and R.sup.2 are each independently H, alkyl, or an aminoalkyl group according to the structural formula: ##STR2## and wherein: R.sup.4, R.sup.5 and R.sup.6 are each independently (C.sub.1 -C.sub.12)alkyl or (C.sub.2 -C.sub.8)alkoxy, provided that at least two of R.sup.4, R.sup.5 and R.sup.6 are each (C.sub.2 -C.sub.8)alkoxy;R.sup.7 and R.sup.8 are each H or alkyl; andR.sup.3 and R.sup.9 are each independently alkylene.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: July 18, 2000
    Assignee: General Electric Company
    Inventors: An-Li Kuo, Virginia Van Valkenburg Powell, Frank J. Traver