Title:
POLYMER OF CYCLIC AMIDINE STRUCTURE, PRODUCTION AND USE THEREOF
Document Type and Number:
Japanese Patent JP3829481
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a polymer useful for fixing especially a dye, a pigment, etc., as a cationic water soluble polymer by including specific 2 kinds of amidine structures in high contents to make the reduced viscosity of the polymer a specific value.
SOLUTION: This polymer having cyclic amidine structures having 0.01-10 dl/g, preferably 0.01-6 dl/g and more preferably 0.01-5 dl/g reduced viscosity (measured at 0.1 g/dl concentration in aqueous 1 N sodium chloride solution at 25°C) is obtained by including a 5-membered cyclic amidine structure of formula I (X is a protonic acid) and a 6-membered amidine structure of formula II in total ≥50 mol.%. It is preferable that the copolymer contains 5-99 mol.% structure of formula I and 1-90 mol.% structure of formula II. The polymer is obtained e.g. by a method, etc., for polymerizing a mixture containing N- vinylformamide and acrylonitrile in a molar ratio of (45:55)-(95:5) in the presence of a radical polymerization catalyst in an aqueous medium, then hydrolizing the obtained polymer, removing formic acid formed and heating.
Inventors:
Koji Mori
Nobuhiko Ueno
Aniya Kitani
Toshiya Seko
Nobuhiko Ueno
Aniya Kitani
Toshiya Seko
Application Number:
JP19411998A
Publication Date:
October 04, 2006
Filing Date:
July 09, 1998
Export Citation:
Assignee:
Dianitrix Co., Ltd.
International Classes:
B41M5/00; B41M5/50; B41M5/52; C08F8/48; (IPC1-7): C08F8/48
Domestic Patent References:
| JP10007808A | ||||
| JP8039927A | ||||
| JP7157515A | ||||
| JP2000026790A | ||||
| JP9087323A | ||||
| JP6239925A |
Attorney, Agent or Firm:
Hasegawa Soji
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