Colorless ligand-releasing monomers and polymers and their use t

Details Colorless ligand-releasing monomers and polymers and their use t Colorless ligand-releasing monomers and polymers and their use t

1985-08-09

1987-07-14

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526257, 526258, 526259, 526261, 526262, 526263, 526265, 526266, C08F 2806, C08F22606, C08F23402

Patent

active

046803564

ABSTRACT:
Essentially colorless, hydrophilic ligand-releasing polymers are prepared from ethylenically unsaturated polymerizable monomers represented by the structure: ##STR1## wherein R' is hydrogen or lower alkyl, COUP is a photographic color coupling moiety, LINK is a coupling-off group which can be cleaved by an oxidized developer composition, and LIG is a ligand capable of complexing with metal ions, while joined to the polymer, to form a dye. These polymers also have recurring units which impart hydrophilicity to the polymer. These polymers form metal complex dyes in unexposed areas of photographic elements only, while the ligand is cleaved from the polymer in the exposed areas and washed out of the element.

REFERENCES:
patent: 2449966 (1948-09-01), Hanson, Jr.
patent: 2533182 (1950-12-01), Sargent
patent: 2633422 (1953-03-01), Jennings
patent: 2697662 (1954-12-01), McQueen et al.
patent: 3227550 (1966-01-01), Whitmore et al.
patent: 3451820 (1969-06-01), Umberger
patent: 3515557 (1970-06-01), Chu et al.
patent: 3660092 (1972-05-01), Frank
patent: 3926436 (1975-12-01), Monbaliu et al.
patent: 4142891 (1979-03-01), Baigrie et al.
patent: 4340664 (1982-07-01), Monbaliu et al.
patent: 4409323 (1983-10-01), Sato et al.
Research Disclosure, publication 17643, paragraph VII, Dec., 1978.
Schilt, Talanta, 13, pp. 895-902 (1966).

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