Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing
Patent
1995-05-15
1996-11-19
Huff, Mark F.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Silver compound sensitizer containing
430604, 430605, G03C 1035, G03C 109
Patent
active
055761720
ABSTRACT:
A tabular grain emulsion is disclosed that combines increased speed, reduced low intensity reciprocity failure, and low levels of pressure sensitivity. The tabular grains containing greater than 70 mole percent bromide and laminae located adjacent the {111} major faces each having a thickness of less than 35 nanometers and containing at least 1 mole percent higher iodide than a host portion of the tabular grains on which they are deposited. The tabular grains contain an iridium dopant capable of reducing low intensity failure in one interior grain portion and a Group 8 speed enhancing dopant present in a concentration of from 20 to 300 molar parts per million in another interior grain portion separated from the iridium containing grain portion by at least 10 percent of the silver forming the grain structure.
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Research Disclosure vol. 365, Sep. 1994, Item 36544, Section I.
Research Disclosure vol. 367, Nov. 1994, Item 36736.
Bryant Roger A.
Gould Sharon
Lelental Elizabeth K.
Olm Myra T.
Puckett Sherrill A.
Eastman Kodak Company
Huff Mark F.
Thomas Carl O.
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