Patents Represented by Attorney Royal N. Ronning, Jr.

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  • Sized glass fibers and method for production thereof
    Patent number: 4780339
    Abstract: A method for sizing glass fibers upon formation is provided, employing a migration-resistant glass forming size composition which comprises an effective amount of a starch derivative having the formula ##STR1## wherein R is dimethylene or trimethylene, R' is a C.sub.8 -C.sub.18 alkyl or alkenyl group, and A is hydrogen or a monovalent cation.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: October 25, 1988
    Assignee: National Starch and Chemical Corporation
    Inventors: Norman L. Lacourse, Michael J. Hasuly, Paulo C. Trubiano
  • Water-resistant alkaline adhesive composition
    Patent number: 4775706
    Abstract: A starch-based alkaline curing adhesive is disclosed. The adhesive, when employed in the preparation of corrugated paperboard provides the paperboard with superior water resistant bonds. The adhesive contains from about 6 to 35%, based on total weight of the adhesive, solids basis, of a latex polymer of a halohydrin quaternary ammonium monomer.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: October 4, 1988
    Assignee: National Starch and Chemical Corporation
    Inventors: Carmine P. Iovine, Robert H. Williams, Craig H. Leake
  • Ethylene urea compositions useful as permanent press promoting chemicals
    Patent number: 4770668
    Abstract: This invention provides novel adducts of cyclic ethylene urea which are useful as permanent press agents. These adducts include acid, polyacid, ester, and multiester derivatives of cyclic ethylene urea and can be produced by the reaction of the cyclic ethylene urea with glyoxylic acid and glyoxylic acid derivatives, specifically ester acetals of glyoxylic acid. Such materials impart a high degree of permanent press properties to cellulose and cellulose/polymer blend fabrics.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: September 13, 1988
    Assignee: National Starch and Chemical Corporation
    Inventors: Martin Skoultchi, Dilip K. Ray-Chaudhuri