Surfactants for use in substantially light-insensitive thermographic recording materials

US7040929B2 · kind B2 · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Geert Defieuw · Kessel-Lo, BE
• Johan Loccufier · Zwijnaarde, BE
• Luc Van Steen · Ekeren, BE
• Etienne Van Thillo · Essen, BE

Key dates

• Filing date: Jun 23, 2003
• Grant date: May 9, 2006
• Expiry date: Dec 26, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S430/165
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A substantially light-insensitive monosheet thermographic recording material comprising a support and on one side of said support a thermosensitive element, wherein said thermographic recording material contains at least one compound represented by formula (I):wherein M is hydrogen, an alkali atom or an ammonium group; R1 is an alkyl, alkenyl-, alkynyl-, thioalkyl-, thioalkenyl- or thioalkynyl-group in which the alkyl-, alkenyl- or alkynyl-group has 6 to 25 carbon atoms; X is —O—, —S— or —N(R2)—; and R2 is hydrogen, a —(CH2)mSO3M group or agroup; and m is an integer between 1 and 5.