Photographic element containing gelatin-modified polyurethane

Details Photographic element containing gelatin-modified polyurethane Photographic element containing gelatin-modified polyurethane

1998-06-04

1999-09-14

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430215, 430216, 430531, 430527, 430533, 430537, 430539, 430628, 430642, G03C 193, G03C 1835, G03C 189, G03C 1047

Patent

active

059521643

ABSTRACT:
The present invention is a photographic element including a support, at least one silver halide emulsion layer superposed on said support; and at least one auxiliary layer. The auxiliary layer includes a gelatin-grafted-polyurethane which is formed by coating and subsequent drying of a coating composition comprising gelatin covalently bound to a polyurethane through a grafting agent, wherein a ratio of gelatin to polyurethane is from 1:10 to 2:1.

REFERENCES:
patent: 3240604 (1966-03-01), Cook
patent: 3547642 (1970-12-01), Nishio et al.
patent: 4266015 (1981-05-01), Butler et al.
patent: 4855219 (1989-08-01), Bagchi et al.
patent: 5066572 (1991-11-01), O'Connor et al.
patent: 5173739 (1992-12-01), Kurachi et al.
patent: 5248558 (1993-09-01), Bagchi et al.
patent: 5330885 (1994-07-01), Takamuki et al.
patent: 5804360 (1998-09-01), Schell et al.

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