公开(公告)号：US20030186809A1

公开(公告)日：2003-10-02

申请号：US10183261

申请日：2002-06-26

Applicant: AGFA-GEVAERT

Inventor： Philip Dooms ,  Ivan Hoogmartens ,  Geert Defieuw

IPC: B41M005/30

CPC classification number: B41M5/28 ,  G03C1/49827 ,  G03C1/4989

Abstract: A monosheet black and white substantially light-insensitive thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing one or more substantially light-insensitive organic silver salts, one or more reducing agents consisting of one or more 1,2-dihydroxybenzene-compounds in thermal working relationship therewith and a binder, wherein the molar ratio of molar hydroxy-equivalents of the 1,2-dihydroxybenzene compounds to molar silver-equivalents of the substantially light-insensitive organic silver salts is between 1.2 and 6.0; the 1,2-dihydroxybenzene-compounds have a null(CHnullCH)nR group in the 4 position wherein n is zero or an integer and R is a substituent with a Hammett nullp constant >0.35 and

Abstract translation: 包含热敏元件和载体的单片黑色和白色基本上不光敏感的热敏成像记录材料，所述热敏元件含有一种或多种基本上不光敏的有机银盐，一种或多种由一种或多种1,2-二羟基苯 - 与热处理关系的化合物和粘合剂，其中1,2-二羟基苯化合物的羟基当量的摩尔比与基本上不光敏的有机银盐的银当量的摩尔比在1.2和6.0之间; 1,2-二羟基苯化合物在4位具有 - （CH = CH）nR基团，其中n为0或整数，R为具有Hammett sigmap常数> 0.35且<0.95不包括羧基的取代基 ; 并且1,2-二羟基化合物的苯环任选进一步被选自烷基，取代的烷基，烯基，芳基，杂芳基，烷氧基，硫代烷基，芳氧基，硫代芳基，硫代杂芳基，酰氧基， 硫代酰基，酰氨基，磺酰胺基和卤素基团，芳基环系统和环状杂芳基环系统; 及其热成像记录方法。