Patents Represented by Attorney Joseph C. Cil
  • Patent number: 6953765
    Abstract: The invention is directed to a double-metal cyanide catalyst for the preparation of a polyether polyol by the polyaddition of an alkylene oxideon to a starter compound containing active hydrogen atoms, wherein the DMC catalyst comprises a) at least one double-metal cyanide compound; b) at least one organic complexing ligand; and c) two different complexing components.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: October 11, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Pieter Ooms, Jörg Hofmann, Walter Schäfer