Thermally transferable composition and method for making and usding same
A composition and thermal transfer printing technology, which can be used in the directions of copying/marking methods, printing, temperature recording methods, etc., and can solve the problems of poor durability and the like
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Embodiment 1
[0062] Example 1-Synthesis of Multifunctional Monomer A
[0063]Put 500 g of 20% 4,4'-methylene bis(cyclohexylamine) (Aldich Chemical Company) in toluene solution in a 2 liter flask and add 130 g of methacrylic acid dissolved in 130 g of toluene to shrink Glycerides (Aldich Chemical Company). The mixture was heated with stirring for 72 hours at a temperature of 80-90°C. Add 50 grams of methyl isobutyl ketone (MIBK) to this mixture, and then cool the mixture to about 50°C. A solution of 130 grams of isocyanatoethylmethacrylate in 200 grams of MIBK was added dropwise to the mixture within 5 minutes using a dropping funnel. Slightly heat the mixture while adding. Then use 50 grams of MIBK to rinse the dropping funnel and add to the mixture. After the addition was complete, the mixture was cooled to room temperature. The resulting monomer solution was 30% solids. The solution was diluted to 20% solids by adding methyl ethyl ketone (MEK).
Embodiment 2
[0064] Example 2-Synthesis of Multifunctional Monomer B
[0065] Example 1 was modified, and the isocyanato-ethyl methacrylate used was about half the molar amount. Under the same conditions as in Example 1, 200 g of a 20% 4,4'-methylenebis(cyclohexylamine) solution in toluene was reacted with 52 g of glycidyl methacrylate dissolved in 52 g of toluene. The reaction mixture was then cooled to 60°C. 20 grams of MIBK was added to the mixture, followed by 25 grams of isocyanato ethyl methacrylate dissolved in 60 grams of MIBK. After cooling to room temperature, 60 grams of MEK was added. The resulting monomer solution was 25% solids. MEK was added to dilute the mixture to 20% solids.
Embodiment 3
[0066] Example 3-Synthesis of Multifunctional Monomer C
[0067] 13 g of glycidyl methacrylate and 10 g of 4,4'-methylene bis(cyclohexylamine) dissolved in 50 g of MIBK were heated and reacted at 70°C for 24 hours. The mixture was diluted with 19 grams of toluene, and then 4.6 grams of triethylamine was added. The mixture was cooled in an ice bath, and then a solution of 4 g of acryloyl chloride dissolved in 16 g of toluene was added with rapid stirring within 2 to 3 minutes. The mixture was allowed to stand at room temperature for 15 hours, then 100 cc of water was added, and the mixture was stirred until all solids were dissolved. The stirring was stopped and the water and organic layer were allowed to separate. The organic layer was dried with anhydrous potassium carbonate, and then the anhydrous potassium carbonate was removed by filtration. Evaporation of part of the solution indicated that the solution was 25% solids. After dilution with MEK, a solution containing 20% soli...
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