Patents by Inventor Paul Binger

Paul Binger 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 the preparation of methylenecyclopropane
    Patent number: 5723714
    Abstract: A novel process for the production of methylenecyclopropane from 3-halogen-2-methyl-1-propene (.beta.-methallyl halogenide) by reacting .beta.-methyallyl halogenides with an alkali metal-bis-(trialkylsilyl)-amide, optionally in the presence of an alkali metal alcoholate and/or a corresponding alcohol. Methylenecyclopropane is obtained in a high yield, combined with a low or negligible amount of 1-methyl-cyclopropene.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: March 3, 1998
    Assignee: Studiengesellschaft Kohle mbH
    Inventor: Paul Binger
  • Process for preparing 3-methyl-2-butene-4-olide (4-methyl-2(5H)-furane-2-one)
    Patent number: 4659843
    Abstract: The invention relates to a process for preparing 3-methyl-2-butene-4-olide by the codimerization of methylenecyclopropane with carbon dioxide (CO.sub.2) in the presence of organic complex compounds of transistion metals, which process is characterized in that the codimerization is carried out at a temperature of 100.degree. C. to 200.degree. C. in the presence of palladium(O) compounds which are stable in the reaction mixture up to 200.degree. C. and with CO.sub.2 under a pressure of 10 to 110 bar, optionally in the presence of a solvent.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: April 21, 1987
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Paul Binger, Hans-Joachim Weintz