Patents by Inventor Irmgard Bindrum

Irmgard Bindrum 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).

  • Light-sensitive vesicular material
    Patent number: 4339520
    Abstract: A light-sensitive vesicular recording material comprising a support and a layer comprised of a binder and a light-sensitive compound applied to the support, said binder comprising a butanone soluble copolymer of methacrylonitrile and vinylidene chloride; particularly, a mixture of a butanone soluble methacrylonitrile/vinylidene chloride copolymer and a vinylidene chloride/acrylonitrile copolymer, said copolymers being miscible with each other in butanone.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: July 13, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Markus Seibel, Bernd Huber, Irmgard Bindrum, Dieter Bodenheimer
  • Copper coatings on shaped plastic supports
    Patent number: 3967044
    Abstract: This invention relates to an improvement in the process for the production of a copper coating on a shaped plastic support in which copper is vapor-deposited in a high vacuum on the surface of the plastic support, the improvement comprising coating said surface, prior to the vapor-deposition of copper, with a layer of a conducting substance in a quantity such that the surface resistance is in the range of about 1 to less than 10.sup.12 ohm.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: June 29, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wilhelm Brandt, Irmgard Bindrum
  • Copper coatings on shaped plastic supports
    Patent number: 3953658
    Abstract: This invention relates to an improvement in the process for the production of a copper coating on a shaped plastic support in which copper is vapor-deposited in a high vacuum on the surface of the plastic support, the improvement comprising coating said surface, prior to the vapor-decomposition of copper, with a layer of a conducting substance in a quantity such that the surface resistance is in the range of about 1 to less than 10.sup.12 ohm.
    Type: Grant
    Filed: December 5, 1972
    Date of Patent: April 27, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wilhelm Brandt, Irmgard Bindrum