C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
8/50
C09B 67/34 (2006.01) C08F 2/44 (2006.01) C09B 67/20 (2006.01) C09B 69/06 (2006.01) C09B 69/10 (2006.01) C09D 11/10 (2006.01) C09D 17/00 (2006.01)
Patent
CA 1274953
COLORING MATERIAL AND PROCESS FOR PREPARATION THEREOF A coloring material comprising a solution of an alcohol-soluble resin having a sulfonic acid group or a salt thereof, which is dyed with a basic dye, in a solvent comprising an alcohol as a main component. The coloring material is prepared either by (a) polymerizing an ethylenically unsaturated sulfonic acid or a salt thereof in water and adding a basic dye to the obtained aqueous liquid of the formed polymer or (b) carrying out said polymerization in the presence of a basic dye, and dissolving (i) the obtained aqueous liquid of the formed colored polymer or (ii) a colored polymer obtained by removing water from the obtained aqueous liquid of the formed colored polymer in a solvent comprising an alcohol as a main component; or, (a') carrying out said polymerization in a solvent comprising an alcohol as a main component and then adding a basic dye to the obtained polymer solution, or (b') carrying out said polymerization in the presence of a basic dye.
486460
Emura Noriaki
Oda Yasuhiro
Okuzono Shuichi
Shintani Takashi
Tanaka Tetsuo
Swabey Ogilvy Renault
Tosoh Corporation
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