Thermal Dye
Manufacture of the thermal dye
PGT has not only developed PGT-TD(Thermal Dye) as a major material of the thermal paper, but also ANMT and BBA as intermediates of the thermal dye. PGT-TD has been synthesized by condensation & cyclization under the strong acid conditions.
We were explored a mass production technology to refine. In addition, the final product of high quality was manufactured through PGTech® purification.
Our main technology includes PGTech® purification, Halogenation, Ullmann reaction(nucleophilic aromatic substitution reaction using copper catalysts), O-alkylation, N-alkylation, Friedel-Crafts reaction, etc.
Applicable Product
| Product name | CAS No. | Structure |
|---|---|---|
| 2-Anilino-6-(dibutylamino)-3-methylfluoran | 89331-94-2 |  |
| 4-Methoxy-2-methyl Diphenylamine | 41317-15-1 |  |
| 2-[4-(Dibutylamino)-2-hydroxybenzoyl]benzoic acid | 54574-82-2 |  |
| 3-(Dibutylamino)phenol | 43141-69-1 |  |
| 3-Butylaminophenol | 58494-81-8 |  |
| 3-Butyl(ethyl)aminophenol | 92601-64-4 |  |
| 3-Methylanisole | 100-84-5 |  |
| 4-Bromo-3-methylanisole | 27060-75-9 |  |
| 6'-(ethyl(isopentyl)amino)-3'-methyl-2'-(phenylamino)-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one | 70516-41-5 |  |