Gas separation: apparatus – Solid sorbent apparatus – Plural solid sorbent beds
Patent
1975-12-03
1977-07-12
Brown, J. Travis
Gas separation: apparatus
Solid sorbent apparatus
Plural solid sorbent beds
96101, 96139, 96140, 2602401, G03C 110
Patent
active
040351904
ABSTRACT:
Quaternated merocyanine dyes for spectrally sensitizing direct positive silver halide emulsions having a first heterocyclic nucleus selected from the group consisting of a 2-isoxazolin-3-furyl-5-one, a 2-isoxazolin-3-thienyl-5-one, a 2-isoxazolin-3-pyrryl-5-one, a 2-pyrazolin-3-furyl-5-one, a 2-pyrazolin-3-thienyl-5-one and a 2-pyrazolin-3-pyrryl-5-one nucleus, linked at the 4-carbon atom thereof through a methine chain to a second heterocyclic nucleus for completing the said quaternated merocyanine dye.
REFERENCES:
patent: 2394068 (1946-02-01), Kendall et al.
patent: 3539349 (1970-11-01), Brooker et al.
patent: 3579344 (1971-05-01), Webster
Beretta Paolo
Magnani Luigi
Alexander Cruzan
Brown J. Travis
Litman Mark A.
Minnesota Mining and Manufacturing Company
Sell Donald M.
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