Patents by Inventor Rudi Renner

Rudi Renner 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).

  • Sealing agent and lubricant for medium-pressure and high-pressure autoclaves
    Patent number: 4409187
    Abstract: In an autoclave containing a sealing agent and/or lubricant the improvement wherein said sealing agent or lubricant is a polyether-polyol which has an average OH-functionality of 5.0 to 7.0 and an average OH number of 250 to 500 prepared by reacting a mixture of sucrose and at least one other starting molecule chosen from the group comprising(a) polyhydric alcohols with an OH-functionality of less than 8,(b) monoamines or polyamines which contain at least 2 hydrogen atoms bonded to the amino nitrogen and(c) water, with ethylene oxide and/or propylene oxide.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: October 11, 1983
    Assignee: Bayer Aktiengesellschaft
    Inventors: Armin Kohler, Herbert Schuster, Rudi Renner