Patents by Inventor Michael P. L. Hill

Michael P. L. Hill 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: 4743648
    Abstract: Water-in-oil compositions having a continuous oil phase comprising a silicone and a hydrocarbon cleaning component, a discontinuous water phase, comprise as emulsifier an organopolysiloxane of the formulaZ(Me).sub.2 SiO[(Me).sub.2 SiO].sub.x [(Me)(R)SiO].sub.y [(Me)(QR')SiO].sub.z --Si(Me.sub.2)Zwhere Me denotes methyl, Q a polyoxyalkylene radical, R a C.sub.6 -C.sub.16 alkyl radical, R' an alkylene and Z a monovalent radical. The organopolysiloxane allows stability and easy emulsification of water into an oil phase comprising those silicones and hydrocarbons which are preferred in polishes.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: May 10, 1988
    Assignee: Dow Corning, Ltd.
    Inventors: Michael P. L. Hill, Luc J. R. Vandamme
  • Patent number: 4337166
    Abstract: A detergent composition, particularly for use as a hair shampoo, consisting of a detergent substance, for example one based on a fatty alcohol or a fatty alcohol ethoxylate, and from 0.5 to 20 percent by weight, based on the total composition, of a cyclic methyl siloxane.The presence of the cyclic siloxane results in reduced drying time of the washed fibres.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: June 29, 1982
    Assignee: Dow Corning Limited
    Inventors: Michael P. L. Hill, Petrina F. Fridd
  • Patent number: 4279765
    Abstract: A soap composition which contains from 0.01 to 6% by weight of a polydiorganosiloxane having a molecular weight of at least 2000 and in which at least one of the silicon-bonded substituents is a monovalent group composed of carbon, hydrogen, nitrogen and, optionally, oxygen, the monovalent group having therein at least one amino group. The polydiorganosiloxane imparts a durable soft feel to skin contacted with the soap.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: July 21, 1981
    Assignee: Dow Corning Limited
    Inventors: Michael P. L. Hill, Anthony N. Tizard