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    • 11. 发明授权
    • Toner emulsion aggregation processes
    • 调色剂乳液聚集工艺
    • US5370963A
    • 1994-12-06
    • US82651
    • 1993-06-25
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. Hopper
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. Hopper
    • G03G9/087G03G9/08G03G9/09G03G9/097
    • G03G9/0815G03G9/0804
    • A process for the preparation of toner compositions with controlled particle size comprising:(i) preparing a pigment dispersion in water, which dispersion is comprised of pigment, an ionic surfactant, and an optional charge control agent;(ii) shearing at high speeds the pigment dispersion with a polymeric latex comprised of resin, a counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant thereby forming a uniform homogeneous blend dispersion comprised of resin, pigment, and optional charge agent;(iii) heating the above sheared homogeneous blend below about the glass transition temperature (Tg) of the resin while continuously stirring to form electrostatically bounded toner size aggregates with a narrow particle size distribution;(iv) heating the statically bound aggregated particles above about the Tg of the resin particles to provide coalesced toner comprised of resin, pigment, and optional charge control agent, and subsequently optionally accomplishing (v) and (vi);(v) separating said toner; and(vi) drying said toner.
    • 一种制备具有受控粒度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)以高速剪切颜料分散体,其中聚合物胶乳由树脂,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组成,由此形成均匀的均匀共混分散体,其由树脂,颜料 ,和可选充电剂; (iii)在连续搅拌下将上述剪切的均匀共混物加热到低于树脂的玻璃化转变温度(Tg)的同时,形成具有窄粒度分布的静电有界的调色剂尺寸聚集体; (iv)在树脂颗粒的Tg附近加热静态结合的聚集颗粒,以提供由树脂,颜料和任选的电荷控制剂组成的聚结的调色剂,随后任选地完成(v)和(vi); (v)分离所述调色剂; 和(vi)干燥所述调色剂。
    • 12. 发明授权
    • Toner aggregation processes
    • 调色剂聚合过程
    • US5366841A
    • 1994-11-22
    • US129476
    • 1993-09-30
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. HopperMelvin D. Croucher
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. HopperMelvin D. Croucher
    • G03G9/087G03G9/08
    • G03G9/0804G03G9/0812G03G9/0815
    • A process for the preparation of toner compositions comprising:(i) preparing a pigment dispersion in water, which dispersion is comprised of a pigment, an ionic surfactant and optionally a charge control agent;(ii) shearing the pigment dispersion with a latex blend comprised of resin particles, 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 to form a uniform dispersion of solids in the water, and surfactant;(iii) heating the above sheared blend at a critical temperature region about equal to or above the glass transition temperature (Tg) of the resin, while continuously stirring, to form electrostatically bounded toner size aggregates with a narrow particle size distribution and wherein said critical temperature is from about 0.degree. C. to about 10.degree. C. above the resin Tg, and wherein the resin Tg is from about 30.degree. C. to about 65.degree. C. and preferably in the range of from about 45.degree. C. to about 65.degree. C.;(iv) heating the statically bound aggregated particles from about 10.degree. C. to about 45.degree. C. above the Tg of the resin particles to provide a toner composition comprised of polymeric resin, pigment and optionally a charge control agent; and(v) optionally separating and drying said toner.
    • 一种制备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)用由树脂颗粒,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混合物剪切颜料分散体,从而引起所形成的颜料,树脂颗粒的絮凝或异凝 和电荷控制剂以形成均匀的固体在水中的分散体和表面活性剂; (iii)在连续搅拌的同时在约等于或高于树脂的玻璃化转变温度(Tg)的临界温度区域加热上述剪切共混物,以形成具有窄粒度分布的静电有界调色剂尺寸聚集体,并且其中所述临界 温度在树脂Tg以上约0℃至约10℃,并且其中树脂Tg为约30℃至约65℃,优选为约45℃至约45℃ 约65℃。 (iv)将静态结合的聚集颗粒加热到高于树脂颗粒的Tg的约10℃至约45℃,以提供由聚合树脂,颜料和任选的电荷控制剂组成的调色剂组合物; 和(v)任选地分离和干燥所述调色剂。
    • 15. 发明授权
    • Fluorescent toner processes
    • 荧光调色剂工艺
    • US5554480A
    • 1996-09-10
    • US299392
    • 1994-09-01
    • Raj D. PatelH. Bruce GoodbrandGrazyna E. Kmiecik-LawrynowiczMichael A. HopperMelvin D. CroucherJames M. Duff
    • Raj D. PatelH. Bruce GoodbrandGrazyna E. Kmiecik-LawrynowiczMichael A. HopperMelvin D. CroucherJames M. Duff
    • G03G9/08G03G9/09G03G9/087
    • G03G9/0804G03G9/0926
    • A process for the preparation of fluorescent toner compositions comprising(i) preparing a pigment dispersion in a solvent, which dispersion is comprised of a pigment or dye, 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 pigment, resin particles 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, and wherein the pigment or dye is excitable by ultraviolet light in the frequency range of from about 254 to about 366 nanometers and fluoresces in the visible spectrum of from about 400 to about 700 nanometers.
    • 一种制备荧光调色剂组合物的方法,包括(i)在溶剂中制备颜料分散体,该分散体由颜料或染料,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的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乳混合物剪切颜料分散体,从而引起颜料,树脂颗粒和电荷的絮凝或杂合 控制剂形成静电结合的调色剂尺寸聚集体; 和(iii)加热静态结合的聚集颗粒以形成由聚合物树脂,颜料和任选的电荷控制剂组成的所述调色剂组合物,并且其中颜料或染料可以通过紫外光在约254至约366的频率范围内激发 纳米,并且在约400至约700纳米的可见光谱中发荧光。
    • 16. 发明授权
    • Toner aggregation and coalescence processes
    • 调色剂聚集和聚结过程
    • US5403693A
    • 1995-04-04
    • US83157
    • 1993-06-25
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. Hopper
    • Raj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. Hopper
    • G03G9/087G03G9/08G03G9/09G03G9/097
    • G03G9/0815G03G9/0804G03G9/0812Y10S528/936
    • A process for the preparation of toner compositions with controlled particle size comprising:(i) preparing a pigment dispersion in water, which dispersion is comprised of a pigment, an ionic surfactant in amounts of from about 0.5 to about 10 percent by weight of water, and an optional 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;(iii) stirring the resulting sheared viscous mixture of (ii) at from about 300 to about 1,000 revolutions per minute to form electrostatically bound substantially stable toner size aggregates with a narrow particle size distribution;(iv) reducing the stirring speed in (iii) to from about 100 to about 600 revolutions per minute, and subsequently adding further anionic or nonionic surfactant in the range of from about 0.1 to about 10 percent by weight of water to control, prevent, or minimize further growth or enlargement of the particles in the coalescence step (iii); and(v) heating and coalescing from about 5 to about 50.degree. C. above about the resin glass transition temperature, Tg, which resin Tg is from between about 45.degree. C. to about 90.degree. C. and preferably from between about 50.degree. C. and about 80.degree. C. the statically bound aggregated particles to form said toner composition comprised of resin, pigment and optional charge control agent.
    • 一种用于制备具有受控粒度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,约0.5至约10重量%的水的离子表面活性剂, 和可选的电荷控制剂; (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颜料分散体,从而引起所形成的颜料颗粒的絮凝或异凝 ,树脂和电荷控制剂; (iii)以约300至约1,000转/分钟搅拌得到的(ii)剪切粘稠混合物以形成具有窄粒度分布的静电粘合的基本上稳定的调色剂尺寸聚集体; (iv)将(iii)中的搅拌速度降低至约100至约600转/分钟,随后加入约0.1至约10重量%的水的其它阴离子或非离子表面活性剂以控制, 或最小化在聚结步骤(iii)中的颗粒的进一步生长或增大; 和(v)在树脂玻璃化转变温度Tg以上高于约5至约50℃加热和聚结,该树脂Tg为约45℃至约90℃,优选为约50℃ C.和约80℃的静态结合聚集的颗粒以形成由树脂,颜料和任选的电荷控制剂组成的所述调色剂组合物。
    • 19. 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。
    • 20. 发明授权
    • Toner aggregation processes
    • 调色剂聚合过程
    • US5496676A
    • 1996-03-05
    • US411196
    • 1995-03-27
    • Melvin D. CroucherRaj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. HopperBernard Grushkin
    • Melvin D. CroucherRaj D. PatelGrazyna E. Kmiecik-LawrynowiczMichael A. HopperBernard Grushkin
    • G03G9/08G03G9/087
    • G03G9/0815G03G9/0804
    • A process comprising:(i) preparing a pigment dispersion comprised of pigment, ionic surfactant, and optional charge control agent;(ii) mixing at least two resins in the form of latexes, each latex comprising a resin, ionic and nonionic surfactants and optionally a charge control agent, and wherein the ionic surfactant has a countercharge to the ionic surfactant of (i) to obtain a latex blend;(iii) shearing said pigment dispersion with the latex blend of (ii) comprised of resins, counterionic surfactant with a charge polarity of opposite sign to that of said ionic surfactant and a nonionic surfactant;(iv) heating the above sheared blends of (iii) below about the glass transition temperature (Tg) of the resin, to form electrostatically bound toner size aggregates with a narrow particle size distribution; and(v) subsequently adding further anionic surfactant solution to minimize further growth of the bound aggregates (vi);(vi) heating said bound aggregates above about the glass transition temperature Tg of the resin to form stable toner particles; and optionally(vii) separating and drying the toner.
    • 一种方法,包括:(i)制备由颜料,离子表面活性剂和任选的电荷控制剂组成的颜料分散体; (ii)混合至少两种胶乳形式的树脂,每种胶乳包含树脂,离子和非离子表面活性剂以及任选的电荷控制剂,并且其中所述离子表面活性剂与(i)的离子表面活性剂相反,以获得 胶乳混合物 (iii)用(ii)由树脂构成的胶乳混合物剪切所述颜料分散体,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; (iv)将上述(iii)的剪切混合物加热到约树脂的玻璃化转变温度(Tg)以下以形成具有窄粒度分布的静电结合的调色剂尺寸聚集体; 和(v)随后加入另外的阴离子表面活性剂溶液以使结合的聚集体(vi)的进一步生长最小化。 (vi)将所述结合的聚集体加热到高于树脂的玻璃化转变温度Tg以形成稳定的调色剂颗粒; 和(vii)分离和干燥调色剂。