Liquid toner including amphipathic copolymeric binder having crystalline component
A technology of amphiphilic copolymers and organic sols, which can be applied in the directions of developer, electrical recording, optics, etc., and can solve the problems of adding extra cost of materials, extra process steps of protective layer, unacceptability, etc.
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Embodiment 1～5
[0159] Embodiments 1-5: Preparation of copolymer S material, also referred to as "graft stabilizer" herein
Embodiment 1
[0160] Embodiment 1 (comparison)
[0161] To a 5000 ml three necked round bottom flask equipped with a condenser, a thermocouple connected to a digital thermostat, a nitrogen inlet tube connected to a dry nitrogen source, and a magnetic stirrer was added 2561 g of Norpar TM 12. A mixture of 849 grams of LMA, 26.7 grams of 98% HEMA and 8.31 grams of AIBN. While stirring the mixture, the reaction flask was purged with dry nitrogen at a rate of approximately 2 liters / minute for 30 minutes. A hollow glass plug was then inserted into the open end of the condenser and the nitrogen flow rate was reduced to approximately 0.5 liters / minute. The mixture was heated to 70°C for 16 hours. Conversion is quantitative.
[0162]The mixture was then heated to 90°C and held at this temperature for 1 hour to destroy any residual AIBN, then cooled back to 70°C. The nitrogen inlet tube was then removed and 13.6 grams of 95% DBTDL was added to the mixture followed by 41.1 g...
Embodiment 2
[0164] Embodiment 2 (comparison)
[0165] Using the method and equipment of Example 1, 2561 grams of heptane, 849 grams of TCHMA, 26.8 grams of 98% HEMA and 8.31 grams of V-601 were mixed, and the resulting mixture was reacted at 70° C. for 16 hours. The mixture was then heated to 90°C and held at this temperature for 1 hour to destroy any remaining V-601, then cooled back to 70°C. Then 13.6 grams of 95% DBTDL and 41.1 grams of TMI were added to the cooled mixture. TMI was added dropwise over a period of approximately 5 minutes while stirring the reaction mixture. Following the production process of Example 1, the mixture was allowed to react at 70° C. for about 6 hours, at which point the reaction was quantitative. The mixture was then cooled to room temperature. The cooled mixture was a viscous clear solution containing no visible insoluble material.
[0166] The percent solids of the liquid mixture was determined to be 28.86% using the halogen lamp ...
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Abstract
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