Color photographic recording material

US5919613A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventor

• Michael Missfeldt · Leichlingen, DE

Key dates

• Filing date: Sep 4, 1998
• Grant date: Jul 6, 1999
• Expiry date: Sep 4, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C1/16
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A color photographic recording material contains at least one silver halide emulsion layer which is spectrally sensitized with a monomethinecyanine dye of the following general formula I in which PA1 R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 (identical or different) mean: H, halogen, alkyl, methoxy, aryl, 1-pyrrolyl, 2-pyrrolyl, 3-pyrrolyl, 2-furanyl, 2-thienyl, 3-thienyl, 1-indolyl, N-carbazolyl or N-isoindolyl, or R.sup.4, together with R.sup.3 or R.sup.5, means the residue necessary to complete an optionally substituted fused benzene ring or R.sup.4, together with R.sup.3, means the residue necessary to complete an optionally substituted fused naphthalene ring system; PA1 R.sup.6 and R.sup.7 (identical or different) mean: alkyl, sulphoalkyl, carboxyalkyl, --(CH.sub.2).sub.n --SO.sub.2 --NH--SO.sub.2 -alkyl, --(CH.sub.2 ).sub.n --SO.sub.2 --NH--CO-alkyl, --(CH.sub.2).sub.n --CO--NH--SO.sub.2 -alkyl, --(CH.sub.2).sub.n --CO--NH--CO-alkyl (n=1-6); PA1 X means --O--, --S--, --Se--, --NR.sup.8 --(R.sup.8 =optionally substituted alkyl); PA1 a means H, an aromatic residue or, together with b, the residue necessary to complete a fused benzene ring; PA1 b either together with a or t…