Patents by Inventor Robert O'Meara

Robert O'Meara 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).

  • Prepolymers containing isocyanate groups
    Patent number: 5556891
    Abstract: The invention relates to prepolymers containing isocyanate groups which can be prepared by reactinga) organic isocyanates withb) polyetherols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400 and/or polyesterols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400,c) isocyanate-reactive compounds which are at least difunctional and have molecular weights of from 18 to 399, and, if desired,d) Lewis and/or Bronsted acidic compounds ande) conventional auxiliaries and additives, such as antioxidants, light stabilizers or fillers,wherein at least one aromatic aminopolyether alcohol of the formula ##STR1## where R is aryl, alkylaryl containing one or more C.sub.1 - to C.sub.4 -alkyl groups, haloaryl, nitroaryl or cyanoaryl,R' and R" are identical or different and are, independently of one another, hydrogen, alkyl, aryl, aralkyl, alkoxyalkyl, alkoxyaryl or aroxyaryl,x and y are independent of one another andx+y.gtoreq.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: September 17, 1996
    Assignee: BASF Schwarzheide GmbH
    Inventors: Holger Seifert, Juergen Winkler, Regina Pretzsch, Robert O'Meara
  • Prepolymers containing isocyanate groups
    Patent number: 5530154
    Abstract: The invention relates to prepolymers containing isocyanate groups which can be prepared by reactinga) organic isocyanates withb) polyetherols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400 and/or polyesterols containing at least 2 hydroxyl groups per molecule and having molecular weights of greater than 400,c) isocyanate-reactive compounds which are at least difunctional and have molecular weights of from 18 to 399, and, if desired,d) Lewis and/or Bronsted acidic compounds ande) conventional auxiliaries and additives, such as antioxidants, light stabilizers or fillers,wherein at least one aromatic aminopolyether alcohol of the formula ##STR1## where R is aryl, alkylaryl containing one or more C.sub.1 - to C.sub.4 -alkyl groups, haloaryl, nitroaryl or cyanoaryl,R' and R" are identical or different and are, independently of one another, hydrogen, alkyl, aryl, aralkyl, alkoxyalkyl, alkoxyaryl or aroxyaryl,x and y are independent of one another andx+y.ltoreq.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: June 25, 1996
    Assignee: BASF Schwarzheide GmbH
    Inventors: Holger Seifert, Juergen Winkler, Regina Pretzsch, Robert O'Meara