Photographic element containing a macrocyclic ether compound

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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430234, 430251, 430428, 430486, 430487, 430566, 549 11, 549347, C07D28500, G03C 524, G03C 102, G03C 106

Patent

active

047820136

ABSTRACT:
This invention is directed to a photographic element containing a radiation-sensitive silver halide emulsion layer and a macrocyclic thia or selena ether compound which also comprises oxygen atoms. These macrocyclic compounds are improved silver halide ripening agents.

REFERENCES:
patent: 3062646 (1962-11-01), Dann et al.
patent: 3271157 (1966-09-01), McBride
patent: 4107170 (1978-08-01), Garber
patent: 4267256 (1981-05-01), Bloom et al.
patent: 4311638 (1982-01-01), Bloom et al.
patent: 4335185 (1982-10-01), Bergthaller et al.
Photographic Science and Engineering vol. 27, No. 1, 1983, R. Mingel (application p. 1, ll. 10-11).

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