Patents by Inventor Ronald Fairhurst

Ronald Fairhurst 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).

  • Method for forming (meth)acrolein-containing polymers
    Patent number: 5412041
    Abstract: A method is disclosed for forming emulsion copolymers of (meth)acrolein by:(1) emulsion polymerizing from about 0.1% to about 25%, by weight, based on the total weight of the copolymer, of an acetal derivative of (meth)acrolein with from about 75% to about 99.9% by weight, based on the total weight of the copolymer, of at least one .alpha.,.beta.-ethylenically unsaturated comonomer; and(2) adjusting the pH of the copolymer to less than about 5 to hydrolyze the acetal derivative of (meth)acrolein to (meth)acrolein.The emulsion copolymers of (meth)acrolein formed by the method of the present invention demonstrate performance properties equivalent to those formed by conventional polymerization techniques without the attendant safety and health concerns while handling and transporting the monomer.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: May 2, 1995
    Assignee: Rohm and Haas Company
    Inventors: Patricia M. Lesko, Ronald Fairhurst