Patents by Inventor Dietmar Benner

Dietmar Benner 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).

  • Process for producing multi-layer mouldings
    Patent number: 5236657
    Abstract: The production of multi-layer mouldings (17) from a sheet (6) injection-moulded behind with a resin can be simplified by the sheet (6) being deformed in an injection mould by means of a fluid pressure medium, in particular nitrogen, at at least 20 bar and the deformed sheet (6) injection-moulded behind with resin directly thereafter in this injection mould, a pressure keeping the deformed sheet (6) in position being maintained during the injection-moulding behind.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: August 17, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Werner Waldenrath, Joachim Wank, Wolfgang Lamaack, Dietmar Benner, Friedrich Johannaber, Karl-Heinz Julicher
  • Method of introducing reaction mixtures for single-component foams into pressure containers
    Patent number: 4146066
    Abstract: The invention relates to a method of introducing reaction mixtures for single-component foams into pressure containers. The reaction mixture comprises at least two reaction components and a blowing agent and is formed in an injection mixing head. The reaction mixture is then introduced into an evacuated pressure bottle provided with a valve. Additional pure blowing agent is added via the injection mixhead subsequent to the introduction of the reaction mixture into the pressure container.
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: March 27, 1979
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Dietrich, Peter Herweg, Hans G. Vleurinck, Dietmar Benner