Process of sensitizing silver halide emulsion with a dithioester

Details Process of sensitizing silver halide emulsion with a dithioester Process of sensitizing silver halide emulsion with a dithioester

1975-11-18

1977-06-21

Louie, Jr., Won H.

Gas separation: apparatus

Chromatography type apparatus

Having imbedded baffle or flow distributor

G03C 128

Patent

active

040309282

ABSTRACT:
Method for increasing the sensitivity of a photographic silver halide-gelatin emulsion comprising at the beginning of the chemical ripening adding to the emulsion of a dithioester of the formula: ##STR1## in which R is alkyl, .alpha.-hydroxyalkyl, .alpha.-hydroxyaralkyl, condensed aryl, or o- or p-substituted phenyl or .alpha.-naphthyl, the o- or p- located substituent being a F, OH, dialkylamino, sulfo, phenyl, phenylazo or anilidocarbonyl group and R.sub.1 is alkyl or aralkyl.

REFERENCES:
patent: 3320069 (1967-05-01), Illingsworth
patent: 3597210 (1971-08-01), Bigelow

Affiliated with

Also associated with

Rating

Process of sensitizing silver halide emulsion with a dithioester does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of sensitizing silver halide emulsion with a dithioester, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of sensitizing silver halide emulsion with a dithioester will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-734156