Patents by Inventor Rolf Baumhakel

Rolf Baumhakel 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 production of cold-curing foam resins which contain urethane groups
    Patent number: 4206289
    Abstract: A process for making cold-setting, non-shrinkable polyurethane foam resins using a mixture of silicon compounds of the formula:A.sub.x B.sub.x+2whereinx=2-25, preferably 2-5A is the group R' Si O.sub.3/2B is the group (R).sub.3 Si O.sub.1/2R represents an alkyl group having from 1 to 3 carbon atomsR' represents an aryl group having from 6 to 14 carbon atoms, with the proviso that the mixture contains at least one compound wherein x is greater than 3.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: June 3, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Joachim Meiners, Klaus Seyfried, Armand de Montigny, Rolf Baumhakel