Direct positive dimethine cyanine dyes containing 1-aryl-2-heter

Details Direct positive dimethine cyanine dyes containing 1-aryl-2-heter Direct positive dimethine cyanine dyes containing 1-aryl-2-heter

1989-01-31

1990-05-22

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 83, 546167, 546256, 546270, 546273, C07D47104

Patent

active

049279335

ABSTRACT:
A fogged direct positive photographic silver halide emulsion containing a sensitizing amount of at least one cyanine dye defined above, e.g., cyanine dye containing a 1-phenylindole nucleus substituted in the 2-position with the 3-pyridyl group. The said cyanine dye is also covered. The dye useful in sensitizing the silver halide emulsion useful for fogged direct-positive films.

REFERENCES:
patent: 3501312 (1970-03-01), Mee et al.
patent: 3505070 (1970-04-01), Litzerman et al.
patent: 3580911 (1971-05-01), Mee et al.
patent: 3592653 (1971-07-01), Fumia et al.
patent: 3598596 (1971-08-01), Chapman

Affiliated with

Also associated with

Rating

Direct positive dimethine cyanine dyes containing 1-aryl-2-heter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Direct positive dimethine cyanine dyes containing 1-aryl-2-heter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct positive dimethine cyanine dyes containing 1-aryl-2-heter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2135933