KR880002671A - Thermal imager - Google Patents

Abstract

No content

Description

Thermal imager

Since this is an open matter, no full text was included.

Claims (10)

A transparent film-forming binder, an organic solvent that dissolves the colorless catechol present in the solid solution of the binder, and ferric organophosphates dispersed in the binder, ferric organic phosphinate, and ferric organic A colorless thermal graphic material comprising fine particles of a colorless or generally colorless ferric compound selected from phosphonates. The colorless thermal graphic material of claim 1, wherein the colorless catechol is selected from (a), (b), (c) and (d). In the above formula, A is a saturated ring system containing randomly heteroatoms selected from N, O and S. R ² , R ³ , R ⁵ , R ⁶ are selected from H, consisting of only 5 atoms selected from H and C, N, O and S, and electron-supplyable, and electron-adsorbing groups, respectively. In the above formula, R ² , R ³ are defined above, R ⁴ is a capping guoup selected from H and an alkali (CC), R ¹ is alkylene, at least one N, S, O phenylene is a divalent linking group having a saturation bond selected from (phenylene), and a chain containing naphthylene having only 12 carbons and heteroatoms, and the linking group R ¹ selected is an electron interaction between catechols. It does not catalyze the reaction nor generate two polycatetate hydroxy groups with catechol hydroxy groups. In the above formula, R ² , R ³ and R ⁵ have been defined above and G is one unit (monomer) of the polymer chain selected from hydrocarbons, alkyds, acryloids, foresters, and phenol formaldehyde resins which can be mixed with the binder. R ¹ has been defined above and if G does not promote electronic interactions between catechol units, then R ¹ does not have to be constrained in this way and R ² , R ³ in addition to the definitions above And groups defined for R ⁴ , where m is an integer of 2 or greater. In the above formula, R ² , R ^{3 and} R ^{5 are} defined above and R ⁷ is an alkyl chain having 8 or more carbon atoms. According to claim 1, wherein the ferric compound is a colorless Ergographic material, characterized in that selected from a), b), c), d). a) Fe [OOP (OR) _{2] 3} b) Fe [OOP (OR) _{2] 3} · X c) Fe [OOP (OR) _{2] 3,} and d) Fe [OOP (OR) _{2] 3} In the above formula, Each R is selected from alkyligos each substituted with a substituent selected from alkyl, cycloalkyl, and aryl groups, provided that the substituents do not act as ligands or ligands for ferric ions, and X is a fluoride ), Hexafluoro phosphate, tetraphenylborate, tetrafluoroborate, tetradecylsulfate and nitrate. The colorless thermal graphic material of claim 1, wherein the ferric organophosphate is selected from a) and b) below. a) Fe (OOP (OR) ₂ ) ₃ b) Fe (OOP (OR) ₂ ] ₃ In the above formula, Each R is selected from the group represented by the following general formula. In the above formula, One c 10 b> a, b> c, and 3 a + b 18 The method of claim 2, wherein the substituents R ^1, R ² , R ³ , R ⁴ , R ⁵ and R ⁶ should be selected to exhibit the effect of supplying the entire electron, thereby enhancing proximity to the thermally prepared phase. Colorless thermal graphic material characterized by imparting infrared absorbing properties. The method of claim 2, wherein the substituents R ^1, R ² , R ³ , R ⁴ , R ^5, and R ⁶ are selected and, together with some catechol moieties, the substituents remain electron-absorbing properties Wherein the substituents, together with the catechol units, provide an electron supply property to provide a visual black with enhanced near-absorbance properties enhanced on the thermally prepared phase. A thermal graphics sheet characterized by coating a layer of thermal graphics material according to claim 1 on a surface of a substrate. The colorless thermal graphic material according to any one of claims 1 to 6, wherein the colorless catechol is polycatechol. The thermal graphic sheet material of claim 8, wherein the polycatechol has the following general formula. In the above formula, B contains atoms in the organic bridging group necessary to complete the cyclic structure including the catechol group, and m is an integer between 1 and 10. The sheet material according to claim 9, wherein B has the following general formula. In the above formula, n is an integer of 1 to 4 and m is an integer of 1 to 4. ※ Note: The disclosure is based on the initial application.