Paper making and fiber liberation – Processes and products – Non-fiber additive
Patent
1994-12-28
2000-03-07
Fortuna, Jose
Paper making and fiber liberation
Processes and products
Non-fiber additive
1621643, 1621646, 162183, 1621682, D21H 1762, D21H 1752, D21H 1755
Patent
active
060335262
ABSTRACT:
Disclosed is a method for sizing paper at a pH of about 5.0-8.5 by incorporating a sizing composition consisting essentially of (1) rosin, (2) a cationic polyamine resin at a weight ratio of rosin to cationic polyamine of about 5:1 to about 1:2, and (3) up to 0.3% alum. The cationic polyamine resin is selected from the group consisting of polyalkyleneamine-epihalohydrin resins, polyalkyleneamine-dicyandiamide-epihalohydrin resins, poly(diallylamine.HCl)-epihalohydrin resins, poly(methyldiallylamine.HCl)-epihalohydrin resins, epihalohydrin-modified polyethyleneimine resins, amine-modified poly(methyldiallylamine.HCl)-epihalohydrin resins and mixtures thereof.
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Derwent Abstract: JP 02 293 492--Cationic Rosin Emulsion Size For Paper Sizing--Contains Anionic Rosin Emulsion, Acrylamide and/or Methacrylamide (Co)Polymer and Strongly Cationic Epichlorohydrin Resin, Dec. 1990.
Biermann, Christopher J., Tappi Journal, May, 1992. "Rosin Sizing with Polyamine Mardants from pH 3 to 10".
Poppel, E. and I. Bicu, Das Papier 23, p. 672-682 (1969). "Practical and Theoretical Results in the Field of Wet Strength Paper Manufactured with Epi-Polyamine-Polyamide Resin" (translation).
Ehrhardt Susan M.
Evans D. Bruce
Fortuna Jose
Hercules Incorporated
Kuller Mark D.
Patterson Joanne W.
Szanto Ivan G.
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