NOVEL DEVELOPER FOR THERMAL RECORDING MEDIA AND THERMAL COMPOSITION MEDIA USING THE SAME
申请人:Ruffer, JR. Ronald Q.
公开号:US20160089919A1
公开(公告)日:2016-03-31
The subject invention more specifically discloses compounds which are particularly useful as a developer for thermal recording media. These compounds include p-(p-3-[p-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, m-(p-3-[p-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, o-(p-3-[p-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, p-(p-3-[m-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, and p-(m-3-[o-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol. The present invention also reveals a thermal recording sheet having a thermal recording layer containing a colorless or pale colored dye precursor and a color developer reactable with said dye precursor upon heating to develop a color, wherein said color developer is a compound selected from the group consisting of p-(p-3-[p-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, m-(p-3-[p-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, o-(p-3-[p-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, p-(p-3-[m-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol, and p-(m-3-[o-(p-hydroxyphenoxy)phenyl]ureido}phenoxy)phenol.
该专利更具体地揭示了一种作为热记录介质开发剂特别有用的化合物。这些化合物包括p-(p-3-[p-(p-羟基苯氧基)苯基]脲基}苯氧基)酚、m-(p-3-[p-(p-羟基苯氧基)苯基]脲基}苯氧基)酚、o-(p-3-[p-(p-羟基苯氧基)苯基]脲基}苯氧基)酚、p-(p-3-[m-(p-羟基苯氧基)苯基]脲基}苯氧基)酚和p-(m-3-[o-(p-羟基苯氧基)苯基]脲基}苯氧基)酚。本发明还揭示了一种热记录纸张,其具有包含无色或淡色染料前体的热记录层和与所述染料前体在加热时发生反应以形成颜色的颜色开发剂,其中所述颜色开发剂是从以下组合中选取的化合物:p-(p-3-[p-(p-羟基苯氧基)苯基]脲基}苯氧基)酚、m-(p-3-[p-(p-羟基苯氧基)苯基]脲基}苯氧基)酚、o-(p-3-[p-(p-羟基苯氧基)苯基]脲基}苯氧基)酚、p-(p-3-[m-(p-羟基苯氧基)苯基]脲基}苯氧基)酚和p-(m-3-[o-(p-羟基苯氧基)苯基]脲基}苯氧基)酚。