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Title:
紙、板紙および厚紙の製造法
Document Type and Number:
Japanese Patent JP5832426
Kind Code:
B2
Abstract:
Process for the production of paper, board and cardboard having high dry strength by addition of (a) at least one trivalent cation in the form of a salt, (b) at least one water-soluble cationic polymer and (c) at least one water-soluble amphoteric polymer to the paper stock, draining of the paper stock with sheet formation and subsequent drying of the paper products, the water-soluble cationic polymer (b) being selected from the group consisting of the (i) polymers comprising vinylamine units and (ii) polymers comprising ethylenimine units.

Inventors:
Christian Jen-Rendue
Ellen Kruger
Hans-Joachim Henle
Martin Luben Acker
Norbert Shall
Thomas Mühlenberg
Application Number:
JP2012515423A
Publication Date:
December 16, 2015
Filing Date:
June 07, 2010
Export Citation:
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Assignee:
BASF SE
International Classes:
D21H17/56; C08F8/30; C08F20/56; C08F26/02; C08F228/02; C08G73/04; D21H17/41; D21H17/66
Domestic Patent References:
JP3167392A
JP2007154349A
JP4370295A
JP9078486A
JP62074902A
JP2001279595A
JP2001525892A
JP8504239A
JP2000505124A
Attorney, Agent or Firm:
Takuya Kuno
Takahashi
Kiyoshi Kuruma
Kimihiro Hoshi
Hiroyasu Ninomiya
Shuichi Sumiyoshi
Ryoichi Shino
Ueshima
Yasushi Miyagi
Einzel Felix-Reinhard