Method of preparing silver halide grains of improved photographic and handling characteristics
A method is disclosed of forming silver halide grains capable of forming a surface latent image upon exposure to visible light. The grains are formed by incorporating from 10.sup.-6 to 10.sup.-10 mole of iridium per mole of silver before first ripening. The iridium is incorporated in the presence of a water soluble purine base or a water soluble salt thereof.
Description
Patent History
Patent number: T962004
Type: Grant
Filed: Mar 29, 1977
Date of Patent: Sep 6, 1977
Inventors: Claude G. Dostes (Vincennes), Dany C. Dubromel (Vincennes), Jean-Francois Le Guen (Vincennes)
Application Number: 5/782,572
Type: Grant
Filed: Mar 29, 1977
Date of Patent: Sep 6, 1977
Inventors: Claude G. Dostes (Vincennes), Dany C. Dubromel (Vincennes), Jean-Francois Le Guen (Vincennes)
Application Number: 5/782,572
Classifications
Current U.S. Class:
Fluid Flow Sensing Means (96/110);
With Control Means Responsive To Sensed Condition (96/109);
Solid Sorbent Apparatus (96/108)
International Classification: G03C 128; G03C 130;
International Classification: G03C 128; G03C 130;
