Invention Grant
US07303848B2 Liquid toners comprising amphipathic copolymeric binder and soluble polymers for electrographic applications 有权
包含两亲性共聚物粘合剂和用于电子照相应用的可溶性聚合物的液体调色剂

Liquid toners comprising amphipathic copolymeric binder and soluble polymers for electrographic applications
Abstract:
The invention provides liquid electrographic toner compositions comprising a liquid carrier having toner particles and at least one soluble polymer dispersed in the liquid carrier. The liquid carrier has a Kauri-Butanol number less than about 30 mL. The toner particles comprise polymeric binder comprising at least one amphipathic copolymer comprising one or more S material portions and one or more D material portions. The soluble polymer is present in an amount of from about 1% to about 10% by weight based on toner particle weight. The absolute difference in Hildebrand solubility parameters between the soluble polymer and the liquid carrier is less than about 3.0 MPa1/2. In one aspect of the invention, the soluble polymer that is incorporated in the toner composition has no more than about 30% weight ratio chemical constitution variance from the chemical constitution of the S material portion of the amphipathic copolymer.
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