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    • 9. 发明授权
    • Heat-sensitive recording material
    • 热敏记录材料
    • US4921535A
    • 1990-05-01
    • US205877
    • 1988-06-13
    • Hermann NachburRosalinde Braun
    • Hermann NachburRosalinde Braun
    • B41M5/337
    • B41M5/3375
    • A heat-sensitive recording material whose color reactant system comprises a color former, a developer for said color former and, in addition, a sulfamide compound of formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each independently hydrogen, alkyl containing not more than 12 carbon atoms which is unsubstituted or substituted by halogen, hydroxy, cyano or lower alkoxy; C.sub.5 -C.sub.10 cycloalkyl; phenalkyl, phenyl or naphthyl, each unsubstituted or ring-substituted by halogen, cyano, lower alkyl or lower alkoxy, or --NR.sub.2 R.sub.3 is 5- or 6-membered, preferably saturated, heterocyclic radical; with the proviso that R.sub.1, R.sub.2 and R.sub.3 may not simultaneously by hydrogen.
    • 一种热敏记录材料,其着色反应物体系包含成色剂,用于所述成色剂的显色剂,另外还有式(1)的磺酰胺化合物,其中R 1,R 2和R 3各自独立地为氢,含有 不超过12个未被取代或被卤素,羟基,氰基或低级烷氧基取代的碳原子; C5-C10环烷基; 苯基或萘基,各自未被取代或被卤素,氰基,低级烷基或低级烷氧基环取代,或-NR2R3是5-或6-元,优选饱和的杂环基; 条件是R1,R2和R3不能同时被氢。