Color photographic recording material

Details Color photographic recording material Color photographic recording material

1976-04-19

1977-05-31

Brown, J. Travis

Gas separation: apparatus

Electric field separation apparatus

Collecting electrode details

96 55, 96 565, G03C 140

Patent

active

040267091

ABSTRACT:
The present invention relates to new compounds having an active methylene group or phenolic hydroxyl group and therefore capable of being used as photographic color couplers. The new compounds contain at least one radical of a phosphoric acid diester, phosphonic acid diester, phosphoric acid diamide, phosphonic acid diamide, phosphoric acid ester-amide or phosphonic acid ester-amide.

REFERENCES:
patent: 3482971 (1969-12-01), Bloom et al.
patent: 3607289 (1971-09-01), Keberle et al.
patent: 3984432 (1976-10-01), Piller et al.

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