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    • 31. 发明授权
    • Liquid developers and toner aggregation processes
    • 液体显影剂和调色剂聚集过程
    • US5536615A
    • 1996-07-16
    • US498206
    • 1995-07-05
    • Michael A. HopperRaj D. PatelGrazyna E. Kmiecik-LawrynowiczPeter G. OdellBernard GrushkinGeorge A. Gibson
    • Michael A. HopperRaj D. PatelGrazyna E. Kmiecik-LawrynowiczPeter G. OdellBernard GrushkinGeorge A. Gibson
    • G03G9/08G03G9/12G03G9/135G03G9/13
    • G03G9/12G03G9/0804G03G9/0819G03G9/1355
    • A process for the preparation of liquid developers comprising:(i) preparing a pigment dispersion, which dispersion is comprised of a pigment, and an ionic surfactant;(ii) shearing said pigment dispersion with a latex or emulsion blend comprised of a nonionic surfactant, resin, and a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and optionally adding further anionic, or nonionic surfactant to stabilize the aggregates obtained in (iii);(iii) heating the above resulting sheared aqueous blend below about the glass transition temperature (Tg) of the resin to form toner size aggregates with a narrow particle size distribution;(iv) heating said bound aggregates above about the Tg of the resin to form toner size particles in an aqueous medium and which particles possess a narrow particle size distribution; and(v) separating from the aqueous medium toner particles of resin and pigment, and dispersing said toner particles in a carrier fluid.
    • 一种用于制备液体显影剂的方法,包括:(i)制备颜料分散体,该分散体由颜料和离子表面活性剂组成; (ii)用包含非离子表面活性剂,树脂和抗衡离子表面活性剂的胶乳或乳液共混物剪切所述颜料分散体,所述非离子表面活性剂,树脂和所述离子表面活性剂的电荷极性与所述离子表面活性剂具有相反的电荷极性, (iii)中得到的聚集体; (iii)将上述所得的剪切含水混合物加热到低于树脂的玻璃化转变温度(Tg)的温度以形成具有窄粒度分布的调色剂尺寸聚集体; (iv)将所述结合的聚集体加热到树脂的Tg附近,以在水性介质中形成调色剂颗粒,并且该颗粒具有窄的粒度分布; 和(v)从水性介质中分离树脂和颜料的调色剂颗粒,并将所述调色剂颗粒分散在载体流体中。
    • 32. 发明授权
    • Toner grafting processes
    • 调色剂接枝工艺
    • US5650252A
    • 1997-07-22
    • US669118
    • 1996-06-24
    • T. Hwee NgArthur HelbrechtRaj D. PatelMichael A. HopperRichard P. N. Veregin
    • T. Hwee NgArthur HelbrechtRaj D. PatelMichael A. HopperRichard P. N. Veregin
    • G03G9/08G03G9/087
    • G03G9/0804G03G9/0806G03G9/0815
    • A process for the preparation of toner comprising:(i) preparing a pigment dispersion, which dispersion is comprised of a pigment, an ionic surfactant, and optionally a charge control agent;(ii) shearing said pigment dispersion with a latex or emulsion blend comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant;(iii) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates with a narrow particle size distribution;(iv) heating said bound aggregates above about the Tg of the resin; and(v) thereafter washing the toner obtained, adding initiator, adding monomer, polymerizing by heating, and thereafter cooling, followed by an optional second washing.
    • 一种制备调色剂的方法,包括:(i)制备颜料分散体,该分散体由颜料,离子表面活性剂和任选的电荷控制剂组成; (ii)用由树脂,具有与所述离子表面活性剂的电荷极性相反的电荷极性的抗衡离子表面活性剂和非离子表面活性剂的胶乳或乳液共混物剪切所述颜料分散体; (iii)将上述剪切混合物加热至低于树脂的玻璃化转变温度(Tg),以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; (iv)将所述结合的聚集体加热到树脂的Tg附近; 和(v)然后洗涤所获得的调色剂,加入引发剂,加入单体,通过加热进行聚合,然后冷却,然后进行任选的第二次洗涤。
    • 33. 发明授权
    • Toner emulsion aggregation process
    • 调色剂乳液聚集工艺
    • US5418108A
    • 1995-05-23
    • US082741
    • 1993-06-25
    • Grazyna E. Kmiecik-LawrynowiczRaj D. Patel
    • Grazyna E. Kmiecik-LawrynowiczRaj D. Patel
    • G03G9/087G03G9/08
    • G03G9/0804G03G9/0815Y10S528/936
    • A process for the preparation of toner compositions with controlled particle size and selected morphology comprising(i) preparing a pigment dispersion in water, which dispersion is comprised of pigment, ionic surfactant, and optionally a charge control agent;(ii) shearing the pigment dispersion with a polymeric latex comprised of resin of submicron size, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant thereby causing a flocculation or heterocoagulation of the formed particles of pigment, resin and charge control agent, and generating a uniform blend dispersion of solids of resin, pigment, and optional charge control agent in the water and surfactants;(iii) (a) continuously stirring and heating the above sheared blend to form electrostatically bound toner size aggregates; or(iii) (b) further shearing the above blend to form electrostatically bound well packed aggregates; or(iii) (c) continuously shearing the above blend, while heating to form aggregated flake-like particles;(iv) heating the above formed aggregated particles about above the Tg of the resin to provide coalesced particles of toner; and optionally(v) separating said toner particles from water and surfactants; and(vi) drying said toner particles.
    • 一种制备具有受控粒度和选定形态的调色剂组合物的方法,包括(i)在水中制备颜料分散体,该分散体由颜料,离子表面活性剂和任选的电荷控制剂组成; (ii)用由亚微米尺寸的树脂构成的聚合物胶乳剪切颜料分散体,具有与所述离子表面活性剂相反的电荷极性的反离子表面活性剂和非离子表面活性剂,从而引起所形成的颜料颗粒的絮凝或杂合 树脂和电荷控制剂,并在水和表面活性剂中产生树脂,颜料和任选的电荷控制剂固体的均匀混合分散体; (iii)(a)连续搅拌和加热上述剪切混合物以形成静电结合的调色剂尺寸聚集体; 或(iii)(b)进一步剪切上述共混物以形成静电结合的良好堆积的聚集体; 或(iii)(c)连续地剪切上述共混物,同时加热形成聚集的片状颗粒; (iv)将上述形成的聚集颗粒加热到高于树脂的Tg的高度,以提供调色剂的聚结颗粒; 和(v)从水和表面活性剂中分离所述调色剂颗粒; 和(vi)干燥所述调色剂颗粒。
    • 36. 发明授权
    • Toner processes
    • 墨粉处理
    • US5346797A
    • 1994-09-13
    • US22575
    • 1993-02-25
    • Grazyna E. Kmiecik-LawrynowiczRaj D. PatelGuerino G. Sacripante
    • Grazyna E. Kmiecik-LawrynowiczRaj D. PatelGuerino G. Sacripante
    • G03G9/087G03G9/08
    • G03G9/0804G03G9/0812
    • A process for the preparation of toner compositions comprising(i) preparing a pigment dispersion in a solvent, which dispersion is comprised of a pigment, an ionic surfactant and optionally a charge control agent;(ii) shearing the pigment dispersion with a latex mixture comprised of a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant, a nonionic surfactant and resin particles, thereby causing a flocculation or heterocoagulation of the formed particles of pigment, resin and charge control agent to form electrostatically bound toner size aggregates; and(iii) heating the statically bound aggregated particles to form said toner composition comprised of polymeric resin, pigment and optionally a charge control agent.
    • 一种制备调色剂组合物的方法,包括(i)在溶剂中制备颜料分散体,该分散体由颜料,离子表面活性剂和任选的电荷控制剂组成; (ii)用包含与所述离子表面活性剂相反电荷极性的反离子表面活性剂,非离子表面活性剂和树脂颗粒的胶体混合物剪切所述颜料分散体,从而引起所形成的颜料颗粒的絮凝或杂合, 树脂和电荷控制剂以形成静电结合的调色剂尺寸聚集体; 和(iii)加热静态结合的凝集颗粒以形成由聚合树脂,颜料和任选的电荷控制剂组成的所述调色剂组合物。
    • 39. 发明授权
    • Gamut toner aggregation processes
    • 色域调色剂聚集过程
    • US5688626A
    • 1997-11-18
    • US628062
    • 1996-04-08
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczRichard P. N. VereginMaria N. V. McDougall
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczRichard P. N. VereginMaria N. V. McDougall
    • G03G9/08G03G9/097G03G9/09
    • G03G9/09733G03G9/0804G03G9/0815
    • A process for the preparation of a combination of color toners comprised of a cyan toner, a magenta toner, a yellow toner, and a black toner, each of said toners being comprised of resin and pigment, and wherein the pigment is cyan, magenta, yellow and black, each of the said pigments are dispersed in a nonionic, or neutral charge surfactant, and wherein each toner in the combination is prepared by (i) preparing a pigment dispersion, which dispersion is comprised of a pigment and nonionic water soluble surfactant; (ii) shearing said pigment dispersion with a latex or emulsion blend comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant; (iii) heating the above sheared blend below about the glass transition temperature (Tg) of the resin to form electrostatically bound toner size aggregates; and (iv) heating said bound toner size aggregates above about the Tg of the resin.
    • 一种用于制备由青色调色剂,品红色调色剂,黄色调色剂和黑色调色剂组成的彩色调色剂的组合的方法,每种所述调色剂由树脂和颜料组成,并且其中所述颜料是青色,品红色, 黄色和黑色,每种所述颜料分散在非离子或中性电荷表面活性剂中,并且其中组合中的每种调色剂通过以下制备:(i)制备颜料分散体,该分散体由颜料和非离子水溶性表面活性剂 ; (ii)用由树脂,具有与所述离子表面活性剂的电荷极性相反的电荷极性的抗衡离子表面活性剂和非离子表面活性剂的胶乳或乳液共混物剪切所述颜料分散体; (iii)将上述剪切混合物加热至低于树脂的玻璃化转变温度(Tg)以形成静电结合的调色剂尺寸聚集体; 和(iv)将所述结合的调色剂尺寸聚集体加热到高于树脂的Tg的高度。
    • 40. 发明授权
    • Toner processes
    • 墨粉处理
    • US5648193A
    • 1997-07-15
    • US663420
    • 1996-06-17
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczGuerino G. SacripanteDaniel A. Foucher
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczGuerino G. SacripanteDaniel A. Foucher
    • G03G9/08G03G9/087
    • G03G9/0804G03G9/08755G03G9/08791
    • A process for the preparation of toner compositions, or particles comprised ofi) flushing a pigment into a sulfonated polyester resin, and which resin has a degree of sulfonation of from between about 2.5 and 20 mol percent;ii) dispersing the resulting sulfonated pigmented polyester resin into water, which water is at a temperature of from about 40 to about 95.degree. C., by a high speed shearing polytron device operating at speeds of from about 100 to about 5,000 revolutions per minute thereby enabling the formation of stable toner sized submicron particles, and which particles are of a volume average diameter of from about 5 to about 200 nanometers;iii) allowing the resulting dispersion to cool to from about 5 to about 10.degree. C. below the glass transition temperature of said pigmented sulfonated polyester resin;iv) adding an alkali metal halide solution, which solution contains from about 0.5 percent to about 5 percent by weight of water, followed by stirring and heating from about room temperature, about 25.degree. C., to a temperature below the resin Tg to induce aggregation of said submicron pigmented particles to obtain toner size particles of from about 3 to about 10 microns in volume average diameter and with a narrow GSD; or stirring and heating to a temperature below the resin Tg, followed by the addition of alkali metal halide solution until the desired toner size of from about 3 to about 10 microns in volume average diameter and with a narrow GSD is achieved; andv) recovering said toner by filtration and washing with cold water, drying said toner particles by vacuum, and thereafter, optionally blending charge additives and flow additives.
    • 一种调色剂组合物的制备方法或由以下组分组成的颗粒:i)将颜料冲洗成磺化聚酯树脂,并且所述树脂的磺化度为约2.5至20摩尔%; ii)通过以约100至约5,000转/分钟的速度操作的高速剪切聚酯装置将所得的磺化着色聚酯树脂分散在水中,该水在约40至约95℃的温度下,由此 使得能够形成稳定的调色剂尺寸的亚微米颗粒,并且哪些颗粒的体积平均直径为约5至约200纳米; iii)使所得分散体冷却至低于所述着色的磺化聚酯树脂的玻璃化转变温度约5至约10℃; iv)加入碱金属卤化物溶液,该溶液含有约0.5%至约5%重量的水,然后在约25℃的约室温下搅拌和加热至低于树脂Tg的温度以诱导 所述亚微米有色颗粒的聚集以获得体积平均直径为约3至约10微米并具有窄GSD的调色剂尺寸颗粒; 或搅拌并加热到低于树脂Tg的温度,然后加入碱金属卤化物溶液,直到达到体积平均直径和窄GSD约3至约10微米的所需调色剂尺寸; 和v)通过过滤回收所述调色剂并用冷水洗涤,真空干燥所述调色剂颗粒,然后任选地混合电荷添加剂和流动添加剂。