Patents by Inventor Stewart Shields

Stewart Shields 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: 4695451
    Abstract: An aerosol antiperspirant composition in the form of a substantially stable water-in-oil emulsion is disclosed which consists of 25% to 50% by weight of a liquefied, normally gaseous propellant and 50% to 75% of a base consisting essentially of, by weight, 4 to 20% of at least one water-soluble, astringent salt having antiperspirant efficacy; 0.5 to 5% of a water-in-oil emulsifier; 10% to 25% of a propellant-soluble emollient-stabilizer agent consisting of a water-insoluble, organic, liquid emollient and a water-insoluble organic liquid having a boiling point in the range of 35.degree. C. to 155.degree. C., the weight ratio of emollient to organic liquid being in the range of 0.8:1 to 3:1, and 55% to 78% of water. In preferred compositions, C.sub.3 -C.sub.4 hydrocarbon propellants are employed.
    Type: Grant
    Filed: December 30, 1981
    Date of Patent: September 22, 1987
    Assignee: Colgate-Palmolive Company
    Inventors: Alan Straw, Stewart Shields