Patents by Inventor Urs Thiery

Urs Thiery 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 polyethers containing aminophenoxy groups
    Patent number: 5196584
    Abstract: Disclosed herein is a process for the production of aminophenoxy-terminated polyethers containing recurring structural units corresponding to the following formula--CH.sub.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 --O--comprising reacting:a) a polyether component consisting essentially of a polyether diol containing the afore-stated recurring structural units, withb) a nitrobenzene containing hydroxyl-reactive substituent.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: March 23, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventor: Urs Thiery
  • Process for the preparation of heat-stable polyurethane urea elastomers
    Patent number: 5064875
    Abstract: This invention relates to a process for preparing polyurethane urea elastomers by reacting (a) compounds containing at least two isocyanate-reactive groups and having a molecular weight in the range from about 400 to about 10,000; (b) polyisocyanates; and (c) aromatic diamines corresponding to the formula ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen or alkyl.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: November 12, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Grogler, Urs Thiery, Andreas Ruckes, Richard Kopp, Heinrich Hess