Light sensitive photographic material

US4088491A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Heinrich Odenwalder · Leverkusen, DE
• Walter Puschel · Leverkusen, DE
• Erwin Ranz · Leverkusen, DE

Key dates

• Filing date: Nov 16, 1976
• Grant date: May 9, 1978
• Expiry date: Nov 16, 1996

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/305
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

High edge effects and interimage effects are provided in a color-photographic material by the use of new DIR-compounds. These are of the formula ##STR1## wherein X represents together with the sulfur atom a development inhibiting group; PA1 Y represents --O--, ##STR2## methylene group which may be alkyl substituted or a methine group; Z represents a methylene or ethylene group which may be alkyl substituted, a methine group, a vinylene group, an o-phenylene group, a carbonyl group, an oxycarbonyl group or a carbonamide group; PA1 R.sup.1 and R.sup.2 represent aliphatic, araliphatic or aromatic groups, acyl, acyloxy, alkoxy, aryloxy, amino, halogen, cyano, thioether groups or arylsulfoxyl or alkylsulfoxyl or both R.sup.1 and R.sup.2 together complete an at least mono-unsaturated or aromatic ring.