Patents by Inventor Anna Maria Czech

Anna Maria Czech 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).

  • Cosmetic compositions utilizing acrylate cross linked silicone copolymer networks
    Patent number: 7833541
    Abstract: The cosmetic compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: November 16, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
  • Acrylate cross linked silicone copolymer networks
    Patent number: 7687574
    Abstract: The compositions of the present invention comprise silicone copolymers, terpolymers and higher order polymers that comprise 1) polyether substituted structural units and 2) epoxy or oxirane structural units that are reacted with acrylate species to produce cross linked silicones comprising polyether substituted structural units and acrylate cross links. The cross linked polymers of the present invention are self-emulsifying and may be either water swellable or oil swellable.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: March 30, 2010
    Assignee: Momentive Performance Materials Inc.
    Inventors: Ning Lu, Anna Maria Czech, Pat Hoontrakul, John Nicholson, Roy Rojas-Wahl
  • Block, non-(AB)n silicone polyalkyleneoxide copolymers with tertiary amino links
    Patent number: 6475568
    Abstract: A composition is disclosed that comprises non-hydrolyzable, block, non-(AB)n type copolymers comprising units of the formula {XR2[(SiO(R1)2]xSi(R1)2R2X}, units of the formula {YO(CaH2aO)bY}, and linking groups —NR3—, wherein R1 is alkyl, R2 is a divalent organic moiety, X and Y are independently selected divalent organic groups formed by the ring opening of an epoxide, R3 is selected from the group consisting of alkyl, aryl, aralkyl, oxygen-containing alkyl, oxygen-containing aryl, and oxygen-containing aralkyl, a=2 to 4, b=2 to 100, and x=1 to 500.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: November 5, 2002
    Assignee: Crompton Corporation
    Inventor: Anna Maria Czech