Patents by Inventor Curtis J. Zimmermann

Curtis J. Zimmermann 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).

  • Color effect materials and production thereof
    Publication number: 20040112252
    Abstract: A color effect material is described as composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a highly reflective layer which acts as a reflector to light directed thereon and a spacer pigment layer which is selectively transparent to light directed thereon.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Inventors: Curtis J. Zimmermann, James D. Christie, Vivian K. Doxey, Daniel Stevenson Fuller
  • Oxide metallic effect materials
    Publication number: 20040112253
    Abstract: A color effect material is described as composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a highly reflective silver layer which acts as a reflector to light directed thereon and an iron oxide layer.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Inventors: Curtis J. Zimmermann, Steven A. Jones
  • High chroma effect materials
    Publication number: 20040115432
    Abstract: A color effect material is described as composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a highly reflective silver layer which acts as a reflector to light directed thereon, a spacer layer which is selectively transparent to light directed thereon, and an iron oxide layer on the spacer layer.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Inventors: Curtis J. Zimmermann, Steven A. Jones
  • Hybrid inorganic/organic color effect materials and production thereof
    Patent number: 6582764
    Abstract: A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a first layer which acts as a reflector to light directed thereon, a visibly transparent second organic layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: June 24, 2003
    Assignee: Engelhard Corporation
    Inventors: Daniel S. Fuller, Curtis J. Zimmermann
  • HYBRID INORGANIC / ORGANIC COLOR EFFECT MATERIALS AND PRODUCTION THEREOF
    Publication number: 20030072961
    Abstract: A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a first layer which acts as a reflector to light directed thereon, a visibly transparent second organic layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 17, 2003
    Applicant: Engelhard Corporation
    Inventors: Daniel S. Fuller, Curtis J. Zimmermann
  • Hybrid inorganic/organic color effect materials and production thereof
    Publication number: 20030068443
    Abstract: A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a first layer which acts as a reflector to light directed thereon, a visibly transparent second organic layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 10, 2003
    Applicant: Engelhard Corporation
    Inventors: Daniel S. Fuller, Curtis J. Zimmermann
  • Noble metal coated substrate pigments
    Patent number: 6517939
    Abstract: A silver/gold coated laminar substrate pearlescent product is improved by incorporating rhodium in an amount of up to about 2% into the coating and/or by overcoating with a silane in an amount of up to about 5%.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: February 11, 2003
    Assignee: Engelhard Corporation
    Inventors: Ahmad Moini, Daniel S. Fuller, Alfred E. Kober, Curtis J. Zimmermann
  • Color effect materials and production thereof
    Patent number: 6475273
    Abstract: A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with a first layer selected from the group consisting of silicon, aluminum, titanium nitride and mixtures thereof, which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides a variable pathlength of light dependent on the angle of incidence of light impinging thereon and a third layer being selectively transparent to light directed thereon.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: November 5, 2002
    Assignee: Engelhard Corporation
    Inventors: Curtis J. Zimmermann, Vivian K. Doxey, Daniel S. Fuller
  • Alloy color effect materials and production thereof
    Patent number: 6440208
    Abstract: A color effect material is composed of a plurality of encapsulated substrate platelets in which each platelet is encapsulated with copper, zinc, an alloy of copper, or an alloy of zinc first layer which acts as a reflector to light directed thereon, a second layer encapsulating the first layer in which the second layer provides an optically variable reflection of light impinging thereon and a third layer encapsulating the second layer and being selectively transparent to light directed thereon.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: August 27, 2002
    Assignee: Engelhard Corporation
    Inventors: James D. Christie, Daniel S. Fuller, Curtis J. Zimmermann
  • Anti-yellowing polyolefin compositions containing pearlescent pigment to prevent yellowing and method therefore
    Patent number: 5951750
    Abstract: Antioxidant-containing polyolefin compositions are provided including titanium dioxide-coated mica particles having an overcoating calcined thereon to prevent yellowing of the compositions. Reduced photo-darkening and improved densification of the pigment can also be achieved.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: September 14, 1999
    Assignee: Engelhard Corporation
    Inventors: Curtis J. Zimmermann, J. Mike Hanckel