Patents by Inventor Heinz-Georg Schneider

Heinz-Georg Schneider 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).

  • Method of making foamed resins with internal mold-release agents
    Patent number: 4254228
    Abstract: A reaction product of a fatty acid ester and an organic polyisocyanate is included in a foamable reaction mixture containing an organic polyisocyanate to provide a molded product which can be removed from a mold whose surface has not been coated with conventional mold release agents.
    Type: Grant
    Filed: July 18, 1979
    Date of Patent: March 3, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Kleimann, Wulf von Bonin, Heinz-Georg Schneider
  • Process of preparing foams with internal mold-release agents
    Patent number: 4201847
    Abstract: A reaction product of a fatty acid ester and an organic polyisocyanate is included in a foamable reaction mixture containing an organic polyisocyanate to provide a molded product which can be removed from a mold whose surface has not been coated with conventional mold release agents.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: May 6, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut Kleimann, Wulf von Bonin, Heinz-Georg Schneider
  • Process for the production of foams
    Patent number: 4070310
    Abstract: This invention relates to a process for the production of polyurethane foams in closed molds using mixtures of organic polyisocyanates with certain compounds which liberate carbon dioxide under the catalytic influence of basic compounds. In this process a mixture of polyisocyanates and compounds which liberate carbon dioxide under the catalytic influence of basic compounds is reacted with organic compounds containing hydrogen atoms which are reactive with isocyanate groups, which organic compounds are mixed with basic compounds and/or have basic compounds chemically built into them. The process is suitable for the production of any polyurethane foams in a closed mold, but is preferably applied to the production of semi-hard and particularly of hard polyurethane foams having a dense outer skin.
    Type: Grant
    Filed: May 28, 1976
    Date of Patent: January 24, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinz-Georg Schneider, Helmut Kleimann, Bruno Luckas