Patents Represented by Attorney Laura L. Dozek
  • Patent number: 7718035
    Abstract: An improved creping adhesive is prepared by first reacting a dibasic carboxylic acid, or its ester, half-ester, or anhydride derivative, with a polyalkylene polyamine, preferably in aqueous solution, under conditions suitable to produce a water soluble polyamide. The water-soluble polyamide is then reacted with an epihalohydrin until substantially fully cross-linked, and stabilized by acidification with phosphoric acid at the end of the polymerization reaction to form a water-soluble poly(aminoamide)-epihalohydrin creping adhesive that is re-wetable and facilitates water spray removal of buildup so as to lengthen the life of the creping blades, with attendant significant decrease in downtime and maintenance.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: May 18, 2010
    Assignees: Georgia-Pacific Consumer Products LP, Georgia-Pacific Chemicals LLC
    Inventors: Jeffery J. Boettcher, Nancy S. Clungeon, Hung Liang Chou, Clay E. Ringold, Dexter C. Johnson