Liquid electrostatic developers composed of blended resins
    11.
    发明授权
    Liquid electrostatic developers composed of blended resins 失效
    由混合树脂组成的液体静电显影剂

    公开(公告)号:US4772528A

    公开(公告)日:1988-09-20

    申请号:US46539

    申请日:1987-05-06

    IPC分类号: G03G9/13 G03G9/135 G03G9/12

    摘要: A liquid electrostatic developer containing negatively chargeable resin particles with improved charging characteristics, said developer consisting essentially of(A) nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount;(B) resin particles of a blend of at least two polymers, at least one polymer containing at least one acidic constituent having a pKa of less than 4.5 measured at 25.degree. C. in water, and the blend having an acid number of at least one due to said acidic constitutent; the resin particles having an average by area particle size of less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound.A preferred polymer blend is composed of polystyrene and a sulfonated polymer, e.g., poly(2-acrylamido-2-methyl-1-propanesulfonic acid). The average resin particle size by area is less than 10 .mu.m. Optionally a colorant and other additives or adjuvants are present. The liquid electrostatic developer is useful in copying making proofs including digital color proofs, lithographic printing plates, and resists.

    Metallic soap as adjuvant for electrostatic liquid developer
    12.
    发明授权
    Metallic soap as adjuvant for electrostatic liquid developer 失效
    金属皂作为静电液体显影剂的佐剂

    公开(公告)号:US4707429A

    公开(公告)日:1987-11-17

    申请号:US857326

    申请日:1986-04-30

    申请人: Torence J. Trout

    发明人: Torence J. Trout

    IPC分类号: G03G9/097 G03G9/12 G03G9/135

    CPC分类号: G03G9/1355 G03G9/097 G03G9/12

    摘要: Electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) thermoplastic resin particles having a metallic soap as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound. Optionally a colorant and charge adjuvant are present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.

    摘要翻译: 基本上由以下组成的静电液体显影剂:(A)主要含有贝壳杉脂丁醇值小于30的非极性液体,(B)具有分散在其中的金属皂的平均粒径小于10微米的热塑性树脂颗粒 m,和(C)非极性液体可溶性离子或两性离子电荷导向剂化合物。 任选地存在着色剂和电荷佐剂。 静电液体显影剂可用于复印,制作证明包括数字彩色印版,平版印刷版和抗蚀剂。

    Process for making pigmented ink jet inks
    14.
    发明授权
    Process for making pigmented ink jet inks 失效
    制造着色喷墨油墨的方法

    公开(公告)号:US5026427A

    公开(公告)日:1991-06-25

    申请号:US256809

    申请日:1988-10-12

    摘要: In accordance with this invention there is provided a process for the preparation of pigmented ink jet inks comprising:(a) mixing at least one pigment and at least one pigment dispersant in a dispersant medium to form a pigmented ink mixture wherein pigment is present in an amount up to 60% by weight based on the total weight of the mixture;(b) deflocculating the pigmented ink mixture by passing the pigmented ink mixture through at least a plurality of nozzles within a liquid jet interaction chamber at a liquid pressure of at least 1,000 psi to produce a substantially uniform dispersion of pigment particles in the dispersant medium.

    摘要翻译: 根据本发明,提供了一种制备着色喷墨油墨的方法,其包括:(a)在分散介质中混合至少一种颜料和至少一种颜料分散剂以形成着色油墨混合物,其中颜料存在于 基于混合物的总重量可达60重量% (b)通过使着色的油墨混合物通过液体喷射相互作用室内的至少多个喷嘴在至少1,000psi的液体压力下使颜料混合物反絮凝,以产生颜料颗粒在分散介质中的基本上均匀的分散体。

    Aromatic nitrogen-containing compounds as adjuvants for electrostatic
liquid developers
    15.
    发明授权
    Aromatic nitrogen-containing compounds as adjuvants for electrostatic liquid developers 失效
    芳香族含氮化合物作为静电液体显影剂的辅助剂

    公开(公告)号:US5009980A

    公开(公告)日:1991-04-23

    申请号:US292192

    申请日:1988-12-30

    IPC分类号: G03G9/13 G03G9/135

    CPC分类号: G03G9/131 G03G9/135

    摘要: A liquid electrostatic developer consisting essentially of(A) a nonpolar liquid having a Kauri-butanol value of less than 30 present in a major amount,(B) thermoplastic resin particles having dispersed therein an aromatic nitrogen-containing compound which is substantially insoluble or immiscible in the nonpolar liquid at ambient temperatures as defined herein, the resin particles having an average by area particle size of less than 10 .mu.m, and(C) a nonpolr liquid soluble ionic or zwitterionic charge director compound, and process for preparation. The developer is useful in copying and color proofing including digital color proofing, lithographic printing plates and resists.

    Phosphorous-containing compounds as adjuvant for positive electrostatic
liquid developers
    17.
    发明授权
    Phosphorous-containing compounds as adjuvant for positive electrostatic liquid developers 失效
    含磷化合物作为阳性静电液体显影剂的佐剂

    公开(公告)号:US4917986A

    公开(公告)日:1990-04-17

    申请号:US292191

    申请日:1988-12-30

    IPC分类号: G03G9/12 G03G9/135

    CPC分类号: G03G9/135 G03G9/1355

    摘要: A positive, liquid electrostatic developer consisting essentially of(A) a nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount,(B) thermoplastic resin particles having dispersed therein a phosphorous-containing compound defined herein which is substantially insoluble or immiscible in the nonpolar liquid at ambient temperatures, the resin particles having an average by area particle size of less than 10 .mu.m, and(C) a nonpolar liquid soluble ionic or zwitterionic charge director compound, and process for preparation. The liquid developer is useful in copying, color proofing including digital color proofing, lithographic printing plates and resists.

    Hydroxycarboxylic acids as adjuvants for negative liquid electrostatic
developers
    19.
    发明授权
    Hydroxycarboxylic acids as adjuvants for negative liquid electrostatic developers 失效
    羟基羧酸作为阴性液体静电显影剂的佐剂

    公开(公告)号:US4859559A

    公开(公告)日:1989-08-22

    申请号:US027612

    申请日:1987-03-18

    申请人: Torence J. Trout

    发明人: Torence J. Trout

    IPC分类号: G03G9/13 G03G9/135

    CPC分类号: G03G9/135 Y10S430/105

    摘要: Negative, liquid electrostatic developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount. `(B) thermoplastic resin particles having a hydroxycarboxylic acid as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic compound which imparts a negative charge to the thermoplastic resin particles. Optionally additional adjuvants are present. The liquid electrostatic developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.

    Process for preparation of electrostatic liquid developing using
metallic soap as adjuvant
    20.
    发明授权
    Process for preparation of electrostatic liquid developing using metallic soap as adjuvant 失效
    使用金属皂作为助剂制备静电液体显影的方法

    公开(公告)号:US4740444A

    公开(公告)日:1988-04-26

    申请号:US66337

    申请日:1987-06-25

    申请人: Torence J. Trout

    发明人: Torence J. Trout

    IPC分类号: G03G9/097 G03G9/12 G03G9/00

    CPC分类号: G03G9/12 G03G9/097

    摘要: Electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) thermoplastic resin particles having a metallic soap as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound. Optionally a colorant and charge adjuvant are present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.

    摘要翻译: 基本上由以下组成的静电液体显影剂:(A)主要含有贝壳杉脂丁醇值小于30的非极性液体,(B)具有分散在其中的金属皂的平均粒径小于10微米的热塑性树脂颗粒 m,和(C)非极性液体可溶性离子或两性离子电荷导向剂化合物。 任选地存在着色剂和电荷佐剂。 静电液体显影剂可用于复印,制作证明包括数字彩色印版,平版印刷版和抗蚀剂。