Resources Contact Us Home
Film material exhibiting a "colder" blue-black image tone and improved preservation characteristics

Image Number 3 for United States Patent #6737228.

A black-and-white silver halide photographic film material has been provided, wherein said material has first and second major surfaces, at least one of which is coated with at least one light-sensitive silver halide emulsion layer, overcoated with a protective antistress layer, wherein said emulsion layer(s) have chemically and spectrally sensitized {111} tabular hexagonal emulsion grains or crystals rich in silver bromide in an amount covering at least 50% of the total projective grain surface of all grains, wherein said grains further have an average equivalent volume diameter in the range from 0.3 .mu.m up to 1.5 .mu.m and an average grain thickness of less than 0.30 .mu.m, and an average amount of iodide from 0.05 mole % up to 0.5 mole % based on silver over the whole grain volume, characterized in that said material comprises, in an amount of at least 0.5 mmole per mole of silver halide coated, a heteroaromatic compound according to the general formula (I), presented in the claims and in the detailed description.

  Recently Added Patents
Method of manufacturing semiconductor device and semiconductor device
Categorization of design rule errors
Organic light emitting device connection methods
Crystal structure of human JAK3 kinase domain complex and binding pockets thereof
Solid-state imaging device and electronic apparatus with antireflection structure
High pressure refolding of protein aggregates and inclusion bodies
Sample chamber for laser ablation inductively coupled plasma mass spectroscopy
  Randomly Featured Patents
Antimicrobial detergent compositions containing iodine ions
Suction control valve
Control device for lifting-up and translating the carriage of a machine for edge trimming and beveling spectacle glasses
Process for improving the sun protection factor of cellulosic fibre material
System and method for representing named data streams within an on-disk structure of a file system
Optical sash sensing system for fume hoods
Collision-free insertion and removal of circuit-switched channels in a packet-switched transmission structure
Home work bench
Enhanced fiber nodes with CMTS capability
Collapsible tent frame with retractable eaves