Gas separation: apparatus – Electric field separation apparatus – With details of voltage supply means or circuitry
Patent
1977-04-15
1979-10-30
Brown, Travis
Gas separation: apparatus
Electric field separation apparatus
With details of voltage supply means or circuitry
96124, G03C 192
Patent
active
041727304
ABSTRACT:
Silver halide radiographic sensitive materials comprising at least one silver halide photographic emulsion layer on a support, which are used according to a process which comprises exposure to radiation from a fluorescent intensifying screen which emits light having a maximum emission in the green spectral range by excitation with radiation wherein at least 1/2 of the emission energy is in the wavelength range of above about 400 nm, and carrying out development of the exposed sensitive material to form radiographic images, wherein said silver halide sensitive materials contain below about 8.6 g of silver per square meter and said at least one silver halide photographic emulsion layer contains a combination of at least one dye represented by formula (I) and at least one dye represented by formula (II): ##STR1## wherein A.sub.1 and A.sub.2 each represents a hydrogen atom or a halogen atom; A.sub.3 and A.sub.4 each represents a hydrogen atom, a halogen atom, an alkoxy group or a phenyl group; B.sub.1, B.sub.2, B.sub.3 and B.sub.4 each represents a hydrogen atom, a halogen atom or an alkoxy group; R, R.sub.1 and R.sub.2 each represents an alkyl group and at least one of R.sub.1 and R.sub.2 represents a sulfoalkyl group or a carboxyalkyl group; R.sub.0 represents a hydrogen atom or a lower alkyl group, R.sub.3 and R.sub.4 each has the same meaning as R.sub.1 and R.sub.2 ; X.sub.1 represents an anion; m and n each represents an integer of 1 or 2, but m and n are 1 when the dye forms an inner salt; and X.sub.2 represents an anion.
REFERENCES:
patent: 3832189 (1974-08-01), Shiba et al.
patent: 3854955 (1974-12-01), Shiba et al.
patent: 3864134 (1975-02-01), Veda et al.
patent: 3912933 (1975-10-01), Van Stappen
patent: 3923515 (1975-12-01), Van Stappen
patent: 3953215 (1976-04-01), Hinata et al.
Hinata Masanao
Miyasaka Nobuaki
Takahashi Kenji
Takei Haruo
Brown Travis
Fuji Photo Film Co. , Ltd.
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