Dimethine dyestuffs, their preparation and their use for...

Details Dimethine dyestuffs, their preparation and their use for... Dimethine dyestuffs, their preparation and their use for...

C - Chemistry, Metallurgy

09

B

8/1, 260/277.3,

C09B 23/10 (2006.01) D06P 1/00 (2006.01) D06P 1/42 (2006.01) D21H 21/28 (2006.01)

Patent

CA 1162195

Abstract Styryl dyestuffs of the general formula Image I wherein Het represents a pyridinium radical having the structure Image or, preferably, Image , R and R1 independently of one another designate lower alkyl or alkenyl groups, which can be substi- tuted by non-ionic radicals, ring A can be substituted by C1- to C4-alkyl, ring B can be substituted by C1- to C4-alkyl, C1- to C4-alkoxy or halogen D represents the remaining members of a 5- membered to 7-membered heterocyclic ring and An- represents an anion, are used for dyeing natural and synthetic substrates which can be dyed with cationic dyestuffs, in particular for beater-dyeing paper and for writing and printing on paper.

374127

Affiliated with

Also associated with

Rating

Dimethine dyestuffs, their preparation and their use for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dimethine dyestuffs, their preparation and their use for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dimethine dyestuffs, their preparation and their use for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-664060