Basic dyes

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C - Chemistry, Metallurgy

09

B

8/4, 260/382.4

C09B 23/10 (2006.01) C09B 23/14 (2006.01) D21H 21/28 (2006.01)

Patent

CA 1123846

Abstract of the disclosure: Compounds of the general formula Image where A1 and A2 are the radical of a quaternized methylene- active compound and B is a bridge member. The compounds according to the invention are very suitable for coloring ligneous and lignin-free paper stock.

343292

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