Gel organosol including amphipathic copolymeric binder having acid/base functionality and liquid toners for electrophotographic applications
An amphiphilic copolymer, liquid electrophotography technology, applied in the application, developer, electrography and other directions, can solve the problems of increasing the printing process cost, the brittleness of the self-stabilizing printing ink on business trips, and the slow curing method, and achieves improved sedimentation. Stable, excellent image transfer effect
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Embodiment 1-11
[0164] Examples 1-11: Preparation of Copolymer S material, also referred to herein as "grafted stabilizer"
Embodiment 1
[0165] Embodiment 1 (comparison)
[0166] Introduce 475g Norpar into a 32oz (0.96L) narrow neck glass bottle TM12. 158g TCHMA, 5.0g 98% HEMA and 2.44g V-601. The bottle was purged with dry nitrogen at approximately 1.5 liters / minute for 1 minute and then sealed with a Teflon-lined screw cap. Secure the nuts in place with insulating tape. The sealed bottle was then inserted into a metal cage assembly and mounted on the stirrer assembly of an Atlas Launder-Ometer (Atlas Electric Devices Company, Chicago, IL). The Launder-Ometer was operated at a fixed stirring speed of 42 RPM with a water bath temperature of 70°C. The mixture was allowed to react for about 16-18 hours at which point the conversion of monomer to polymer was quantitative. The mixture was heated to 90°C and then heated at this temperature for 1 hour to destroy any remaining V-601, then cooled to room temperature.
[0167] The bottle was then opened and 2.5g of 95% DBTDL and 7.6g of TMI were added to the cool...
Embodiment 2
[0170] Into a 5000 ml three necked round bottom flask equipped with a condenser, a thermocouple connected to a digital temperature controller, a nitrogen inlet tube connected to a dry nitrogen source, and a magnetic stirrer was introduced 2557 g of Norpar TM 12. A mixture of 823g LMA, 26.6g DMAEMA, 26.8g 98% HEMA and 13.13g V-601. While stirring the mixture, the reaction flask was purged with dry nitrogen for 30 minutes at a flow rate of about 2 liters / minute. A hollow glass stopper was then inserted into the open end of the condenser and the nitrogen flow rate was reduced to about 0.5 L / min. The mixture was heated at 70°C for 16 hours. The conversion rate is quantitative.
[0171] The mixture was heated to 90°C and held at this temperature for 1 hour to destroy any remaining V-601, then cooled back to 70°C. The nitrogen inlet tube was then removed and 13.6 g of 95% DBTDL was added to the mixture followed by 41.1 g of TMI. TMI was added dropwise over about 5 minutes while ...
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Abstract
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