Patents by Inventor Claudia M. Mettler

Claudia M. Mettler 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).

  • Toughened mercaptosiloxane modified emulsion polymerized vinylic polymers
    Patent number: 4071577
    Abstract: The impact strength of certain thermoplastic vinylic polymers is improved by polymerizing the corresponding monomers in an emulsion of a diorganosiloxane containing units of the formula HSR'SiR.sub.n O.sub.3-n/2. For example a styrene acrylonitrile copolymer containing 20 percent by weight of a dimethylsiloxane-3-mercaptopropylsiloxane copolymer having 1 mol percent mercaptosiloxane has an Izod notched impact strength of 10.8 foot pounds per inch.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: January 31, 1978
    Assignee: Dow Corning Corporation
    Inventors: James R. Falender, Claudia M. Mettler, John C. Saam
  • Toughened mercaptosiloxane modified emulsion polymerized vinylic polymers
    Patent number: RE30431
    Abstract: The impact strength of certain thermoplastic vinylic polymers is improved by polymerizing the corresponding monomers in an emulsion of a diorganosiloxane containing units of the formula HSR'SiR.sub.n O.sub.3--n/2. For example a styrene acrylonitrile copolymer containing 20 percent by weight of a dimethylsiloxane-3-mercaptopropylsiloxane copolymer having 1 mol percent mercaptosiloxane has an Izod notched impact strength of 10.8 foot pounds per inch.
    Type: Grant
    Filed: August 21, 1978
    Date of Patent: November 4, 1980
    Assignee: Dow Corning Corporation
    Inventors: James R. Falender, Claudia M. Mettler, John C. Saam