Patents by Inventor Keith Headley

Keith Headley 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).

  • Short chain polyethers for rigid polyurethane foams
    Publication number: 20070149632
    Abstract: The present invention provides a short-chain polyether polyol having a number average molecular weight of less than about 1,200 g/mole and produced by alkoxylating an initiator in the presence of a basic catalyst having at least one cation chelated with about 0.5 wt. % to about 20 wt. % of a polyoxyethylene-containing compound, wherein the weight percentages are based on the weight of the short-chain polyether polyol. The inventive short-chain polyols may be used to produce rigid polyurethane foams and non-cellular polyurethanes.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Inventors: Karl Haider, Keith Headley, Don Wardius