Class of non-sensitizing infra-red dyes for use in photosensitiv

Details Class of non-sensitizing infra-red dyes for use in photosensitiv Class of non-sensitizing infra-red dyes for use in photosensitiv

1996-12-09

1998-04-21

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Antihalation or filter layer containing

430582, 430584, 430944, G03C 183, G03C 120

Patent

active

057416320

ABSTRACT:
A novel class of non-sensitizing infra-red dyes derived from heptamethine dyes with indolenine nuclei is disclosed. They are useful as filter-, acutance- or antihalation dyes for photographic elements based on silver halide or for photothermographic elements.

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patent: 4876181 (1989-10-01), Proehl et al.
patent: 4940654 (1990-07-01), Diehl et al.
patent: 5153112 (1992-10-01), Yoshida et al.
patent: 5397690 (1995-03-01), Fabricius et al.

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