Patents by Inventor Mark Loenders

Mark Loenders 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).

  • Urea-modified isocyanates
    Patent number: 4885348
    Abstract: A dispersion in an aromatic polyisocyanate of a reaction product of the polyisocyanate and an amine having the formula: ##STR1## wherein Q represents hydrogen or hydrocarbyl and R represents a hydrocarbyl radical selected from radicals of the formulae: ##STR2## or wherein R and Q together with the attached nitrogen atom form a piperidine, morpholine or pyrolidine ring bearing a hydrocarbyl radical on at least one of the carbon atoms adjacent to the nitrogen atom.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: December 5, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventors: James P. Brown, Ernst O. Duber, Mark Loenders