Patents by Inventor Bernd Mucha

Bernd Mucha 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).

  • Modified bitumens, processes for their preparation, their use and solubilizing agents for plasticized polyvinyl butyral in bitumen
    Patent number: 5360848
    Abstract: Modified bitumens, processes for their preparation, their use and solubilizing agents for plasticized polyvinyl butyral in bitumen.Preparation of modified bitumens having improved elasticity properties and an improved low-temperature flexibility by homogeneous mixing of plasticized polyvinyl butyral (PVB) into molten bitumen at 150.degree. to 300.degree. C., simultaneously using mono-, oligo- or polyalkylene glycol dialkyl ethers as solubilizing agents, if appropriate in combination with polystyrene as solubilizing co-component. Process for the preparation of the modified bitumens and possible uses thereof in industrial fields in which bitumens elasticized by conventional methods have hitherto been employed or required.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: November 1, 1994
    Assignee: Hoechst Aktiengesellschaft AG
    Inventors: Manfred Kuechler, Bernd Mucha