Patents by Inventor Scott Rhein

Scott Rhein 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).

  • Patent number: 5834554
    Abstract: A process for the preparation of sulfonated polyurethane-urea polymers, which are useful film to film laminating adhesives for flexible packaging in which the urethane-urea polymer component has no amide linkages. The water-based sulfonated polyurethane prepolymers are processed at reduced temperatures and are substantially free of volatile and/or leachable contaminants.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: November 10, 1998
    Assignee: H. B. Fuller Licensing & Financing, Inc.
    Inventors: Youlu Duan, Douglas U. Gwost, Lowell Lindquist, Scott Rhein, Thomas E. Rolando, Sonja Stammler, Peter A. Voss, Michael J. Dockniak
  • Patent number: 5610232
    Abstract: Aqueous dispersion adhesives of anionic polyurethanes which have high heat resistance and low activation temperature, even when employed without addition of a crosslinker. The polyurethane is the reaction product of an isocyanate terminated polyurethane prepolymer, and water. The polyurethane prepolymer is the reaction product of a polyol component and a diisocyanate component, the polyol component including:a sulfonated polyester polyol,a hydroxy carboxylic acid of the formula:(HO).sub.x R(COOH).sub.ywherein (R) represents a straight or branched, hydrocarbon radical containing 1 to 12 carbon atoms, and x and y represent values from 1 to 3, and optionally,a low molecular weight aliphatic diol having a molecular weight of from 60 to 400a non-sulfonated polyol,and the diisocyanate component being selected from the group consisting of aromatic diisocyanates, isopherone diisocyanate, hexamethylene diisocyanate and mixtures thereof.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 11, 1997
    Assignee: H.B. Fuller Licensing & Financing, Inc.
    Inventors: Youlu Duan, Sonja Stammler, Scott Rhein, Lowell Lindquist