Cyanine dye

US6649335B2 · kind B2 · utility

Assignee

• Agfa-Gevaert NV · BE

Inventor

• Michael Missfeldt · Leichlingen, DE

Key dates

• Filing date: Nov 5, 2001
• Grant date: Nov 18, 2003
• Expiry date: Feb 7, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C2001/03517
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A cyanine dye of formula (II) whereinX1 is C(R5, R6), NR7, O, S or Se,X2 is O, S, Se or NR13,R2 with R3, or R3 with R4, are the remaining members for the completion of a condensed furano ring system, and the other R2 or R4 radical, is H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio,R10 to R12, are H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio, or R10 with R11, or R11 with R12, are the remaining members for the completion of a ring system,R5 to R7 and R13 are alkyl, alkylene-SO3Z1 or alkylene-CO2Z1,R8 and R9 are alkyl, alkylene-SO3Z1, alkylene-CO2Z1 or alkylene-Y2—N(Z1)—Y3-alkyl,Z1 is H or a negative charge,Y2 and Y3 are —S(═O)2— or —C(═O)—,M1 is a counterion,L1, L2 and L3 are a methine group andn is 0, 1, 2 or 3.