Title:
FORAMIDE GROUP-CONTAINING COPOLYMER AND PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP3048425
Kind Code:
B2
Abstract:
PURPOSE: To efficiently obtain a copolymer having an excellent hue without causing gelatinization resulting from crosslinking reaction by treating a polyfunctional copolymer containing succinic anhydride group with a diamine to introduce formamide group, etc., to the side chain.
CONSTITUTION: A polyfunctional copolymer containing succinic anhydride group as a functional group is treated with a diamine, polymer modifying reaction is carried out, formamide group or formamide group and a primary amino group are introduced into the side chain to give a copolymer containing (A) 40-99.8mol% repeating unit shown by formula I (R1 and R2 are H, 1-10C alkyl, etc.), (B) 50-0mol% repeating unit shown by formula II (R3 and R4 are H, 1-4C alkyl, etc.) and (C) 60-0.2mol% total amounts of (i) a repeating unit shown by formula III (R5 and R6 are H, 1-6C alkyl, etc.; R7 is 1-12C alkylene, etc.), (ii) a repeating unit shown by formula IV and (iii) a repeating unit shown by formula V (X1 and X2 are NH2 or NH-CHO) in the molecule or a salt thereof.
Inventors:
Naoki Kitazawa
Hiroshi Hotta
Hideyuki Kaku
Manabu Kikuta
Hiroshi Hotta
Hideyuki Kaku
Manabu Kikuta
Application Number:
JP19159591A
Publication Date:
June 05, 2000
Filing Date:
July 31, 1991
Export Citation:
Assignee:
Daiichi Kogyo Pharmaceutical Co., Ltd.
International Classes:
C08F8/30; C08F8/48; C08F210/00; C08F212/00; C08F212/06; C08F214/00; C08F214/02; C08F218/00; C08F218/04; C08F220/00; C08F222/00; C08F222/06; C08F236/00; C08F236/04; (IPC1-7): C08F8/48; C08F8/30; C08F210/00; C08F212/06; C08F214/02; C08F218/04; C08F220/00; C08F222/06; C08F236/04
Domestic Patent References:
JP4296309A | ||||
JP60240749A | ||||
JP1113408A | ||||
JP2135215A | ||||
JP2135214A |
Attorney, Agent or Firm:
Tamotsu Ohtani