EP 0274723 A1 19880720 - Filter dye for photographic element.

Title (en)

Filter dye for photographic element.

Title (de)

Filterfarbstoff für photographisches Element.

Title (fr)

Colorant filtre pour élément photographique.

Publication

EP 0274723 A1 19880720 (EN)

Application

EP 87118944 A 19871221

Priority

US 10446887 A 19871005
US 94563486 A 19861223

Abstract (en)

Dyes having the structure <CHEM> wherein A represents a substituted or unsubstituted acidic nucleus having a carboxyphenyl substituent selected from the group consisting of 2-pryazolin-5-ones free of any substituent bonded thereto through a carboxyl group, rhodanines, hydantoins, 2-thiohydantoins, 4-thiohydantoins, 2,4-oxazolidindiones, 2-thio-2,4-oxazolidindiones, isoxazolinones, barbituric, 2-thiobarbiturics, and indandiones, R represents hydrogen, substituted or unsubstituted alkyl of 1 to 4 carbon atoms, or benzyl, R<1> and R<2> each independently represents substituted or unsubstituted alkyl or aryl, or taken together with R<5>, R<6>, N, and the carbon atoms to which they are attached, represent the atoms needed to complete a julolydyl ring, R<3> represents H, or substituted or unsubstituted alkyl or aryl, R<5> and R<6> each independently represents H, or R<5> taken together with R<1>, or R<6> taken together with R<2>, represent the atoms necessary to complete a carbocyclic ring, and m is 0 or 1 are disclosed. The dyes are useful as filter dyes in photographic filter layers.

IPC 1-7

C09B 23/06; C09B 23/10; C09B 23/14; G03C 1/84

IPC 8 full level

G03C 1/825 (2006.01); C09B 23/00 (2006.01); C09B 23/14 (2006.01); G03C 1/83 (2006.01); G03C 5/16 (2006.01)

CPC (source: EP)

G03C 1/832 (2013.01); G03C 5/16 (2013.01); G03C 2001/7448 (2013.01); G03C 2200/44 (2013.01); G03C 2200/46 (2013.01)

Citation (search report)

[X] DE 2262794 A1 19730705 - FUJI PHOTO FILM CO LTD
[X] DD 109455 A1 19741105
[AD] DE 1909463 A1 19690911 - MINNESOTA MINING & MFG
[A] FR 2433774 A1 19800314 - WOLFEN FILMFAB VEB [DD]
[X] RESEARCH DISCLOSURE, no. 144, April 1976, pages 17-20, no. 14416, Havant, Hants, GB; "Light-absorbing dyes for photographic elements"

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0274723 A1 19880720; EP 0274723 B1 19901031; CA 1286139 C 19910716; DE 3765921 D1 19901206; JP 2578146 B2 19970205; JP S63197943 A 19880816

DOCDB simple family (application)

EP 87118944 A 19871221; CA 553294 A 19871202; DE 3765921 T 19871221; JP 32417787 A 19871223