Adsorbable alkynyl substituted heterocyclic quaternary ammonium salts and applications thereof to silver halide photography
The use of thioamido and alkynyl substituted heterocyclic ammonium salts in producing images in silver halide photographic elements is disclosed. The thioamido and alkynyl substituted heterocyclic ammonium salts can be incorporated in photographic silver halide emulsions. The thioamido substituent is capable of promoting adsorption of these salts to silver halide grain surfaces. In negative working surface latent image forming emulsions the thioamido and alkynyl substituted heterocyclic ammonium salts permit higher speeds to be achieved. In direct positive internal latent image forming emulsions nucleation activity and improved incubation stability can be achieved.
Description
Patent History
Patent number: T105001
Type: Grant
Filed: Feb 27, 1984
Date of Patent: Jan 1, 1985
Inventors: Richard L. Parton (Rochester, NY), Wilbur S. Gaugh (Rochester, NY), Karl E. Wiegers (Rochester, NY)
Application Number: 6/584,280
Type: Grant
Filed: Feb 27, 1984
Date of Patent: Jan 1, 1985
Inventors: Richard L. Parton (Rochester, NY), Wilbur S. Gaugh (Rochester, NY), Karl E. Wiegers (Rochester, NY)
Application Number: 6/584,280
Classifications
Current U.S. Class:
Silver Halide Identified-grain, Identified Emulsion Binder Other Than Nominal Gelatin, Or Identified Sensitizer Or Identified Desensitizer Containing (430/217);
Fogging Or Nucleating Agent Containing (430/598);
Nitrogen, Other Than As Nitro Or Nitroso, Attached Directly To The Six Membered Hetero Ring By Nonionic Bonding (546/159);
Nitrogen, Other Than As Nitro Or Nitroso, Attached Directly To The Carbocyclic Ring Of The Quinoline Ring System By Nonionic Bonding (546/171);
Sulfur And Acyclic Nitrogen Bonded Directly To The Same Carbon (546/331);
The Nitrogen Is A Ring Hetero Atom (548/162);
Carbonyl Or Thiocarbonyl Bonded Directly To The Nitrogen (548/163);
Chalcogen Or Nitrogen Attached Directly To The Tetrazole Ring By Nonionic Bonding (548/251);
548/341;
Nitrogen Attached Directly To The Five-membered Hetero Ring By Nonionic Bonding (548/557);
The Nitrogen Is Bonded Directly To -c(=x)-, Wherein X Is Chalcogen (e.g., 2 Benzamidomethyl - Pyrrolidines, Etc.) (548/567)
International Classification: G03C 554; G03C 1485; C07D23354; C07D21538;
International Classification: G03C 554; G03C 1485; C07D23354; C07D21538;