Toner aggregation processes
    3.
    发明授权
    Toner aggregation processes 有权
    调色剂聚合过程

    公开(公告)号:US06210853B1

    公开(公告)日:2001-04-03

    申请号:US09657340

    申请日:2000-09-07

    IPC分类号: G03G9087

    摘要: A process for the preparation of toner including (i) gerating by emulsion polymerization in the presence of an initiator a first resin latex emulsion; (ii) generating by polycondensation a second resin latex optionally in the presence of a catalyst; (iib) dispersing the resin of (ii) in water; (iii) mixing (iib) with a colorant thereby providing a colorant dispersion; (iiib) mixing the resin latex emulsion of (i) with the resin/colorant mixture of (iii) to provide a blend of a resin and colorant; (iv) adding an aqueous inorganic cationic coagulant solution of a polymeric metal salt and optionally an organic cationic coagulant to the resin/colorant blend of (iiib); (v) heating at a temperature of from about 5 to about 10 degrees Centigrade below the resin Tg of (i), to thereby form aggregate particles and which particles are optionally at a pH of from about 2 to about 3.5; (vi) adjusting the pH of (v) to about 6.5 to about 9 by the addition of a base; (vii) heating the aggregate particles of (v) at a temperature of from about 5 to about 50 degrees Centigrade above the Tg of the resin of (i), followed by a reduction of the pH to from about 2.5 to about 5 by the addition of an acid resulting in coalesced toner; (viii) optionally isolating the toner.

    摘要翻译: 一种制备调色剂的方法,包括(i)在引发剂存在下通过乳液聚合第一树脂胶乳乳液; (ii)任选地在催化剂存在下通过缩聚产生第二树脂胶乳; (iib)将(ii)的树脂分散在水中; (iii)将混合(iib)与着色剂混合,从而提供着色剂分散体; (iiib)将(i)的树脂胶乳乳液与(iii)的树脂/着色剂混合物混合以提供树脂和着色剂的共混物; (iv)将聚合金属盐和任选的有机阳离子凝结剂的无机阳离子凝结剂水溶液加入到(iiib)的树脂/着色剂混合物中; (v)在(i)的树脂Tg以下约5至约10摄氏度的温度下加热,从而形成聚集体颗粒,并且哪些颗粒任选处于约2至约3.5的pH值; (vi)通过添加碱将(v)的pH调节至约6.5至约9; (vii)在(i)的树脂的Tg以上约5至约50摄氏度的温度下加热(ⅴ)的聚集体颗粒,随后将pH降低至约2.5至约5 加入导致聚结的调色剂的酸; (viii)任选地分离调色剂。

    Solvent-free emulsion process using acoustic mixing
    4.
    发明授权
    Solvent-free emulsion process using acoustic mixing 有权
    无溶剂乳液法使用声学混合

    公开(公告)号:US08435714B2

    公开(公告)日:2013-05-07

    申请号:US12823446

    申请日:2010-06-25

    IPC分类号: G03G9/08

    摘要: A process for making toner particles is provided. In embodiments, a suitable process includes melt mixing a resin in the absence of an organic solvent, optionally adding a surfactant to the resin, adding to the resin at least one colorant and other optional toner additives, adding to the resin a basic agent and water to form a mixture, and subjecting the mixture to acoustic mixing at a suitable frequency to form to form an emulsion. A phase inversion may then be performed to create a phase inversed emulsion including a disperse phase comprising molten resin and the optional ingredients of the toner composition, at which time toner-sized droplets may be solidified from the disperse phase into toner particles, which can be recovered for use.

    摘要翻译: 提供了制备调色剂颗粒的方法。 在实施方案中,合适的方法包括在不存在有机溶剂的情况下熔融混合树脂,任选地向树脂中加入表面活性剂,向树脂中加入至少一种着色剂和其它任选的调色剂添加剂,向树脂中加入碱性试剂和水 以形成混合物,并使混合物以合适的频率进行声学混合以形成乳液。 然后可以进行相转化以产生反相乳液,其包括包含熔融树脂的分散相和调色剂组合物的任选成分,此时调色剂大小的液滴可以从分散相固化成调色剂颗粒,其可以是 恢复使用。

    Reactive ink components and methods for forming images using reactive inks
    8.
    发明授权
    Reactive ink components and methods for forming images using reactive inks 有权
    活性油墨组分和使用反应性油墨形成图像的方法

    公开(公告)号:US08342669B2

    公开(公告)日:2013-01-01

    申请号:US12562839

    申请日:2009-09-18

    IPC分类号: C09D11/00

    摘要: An ink set including at least two inks. A first ink includes an optional colorant, a first multi-functional monomer, a second multi-functional monomer that is different from the first multi-functional monomer, and a peroxide initiator comprising a thermal free radical initiator. A second ink includes an optional colorant, a first multi-functional monomer, a second multi-functional monomer that is different from the first multi-functional monomer, and an amine activator having a catalyst which catalyzes the homolytic cleavage of the thermal free-radical initiator at low temperatures into radicals. The first ink is free of the amine activator and the second ink is free of the peroxide initiator. The first multi-functional monomer and the second multi-functional monomer accelerate reaction kinetics through a Trommsdorff effect. The components are each present in an amount relative to the other that provides a) early onset of gelation that accelerates polymerization, and b) an ink viscosity that is suitable for jetting from an ink jet printer.

    摘要翻译: 一种包含至少两种油墨的油墨组。 第一油墨包括任选的着色剂,第一多官能单体,不同于第一多官能单体的第二多官能单体和包含热自由基引发剂的过氧化物引发剂。 第二油墨包括任选的着色剂,第一多官能单体,不同于第一多官能单体的第二多官能单体,以及具有催化剂的胺活化剂,其催化热自由基的均裂裂解 引发剂在低温进入自由基。 第一种油墨不含胺活化剂,第二种油墨不含过氧化物引发剂。 第一多官能单体和第二多功能单体通过Trommsdorff效应加速反应动力学。 组分各自以相对于另一种的量存在,其提供a)加速聚合的凝胶化的早期开始,和b)适合于从喷墨打印机喷射的油墨粘度。

    Polymerization processes
    10.
    发明授权
    Polymerization processes 失效
    聚合工艺

    公开(公告)号:US06447974B1

    公开(公告)日:2002-09-10

    申请号:US09896293

    申请日:2001-07-02

    IPC分类号: G03G9093

    CPC分类号: G03G9/0806

    摘要: A process for the preparation of a latex polymer by (i) preparing or providing a water aqueous phase containing an anionic surfactant in an optional amount of less than or equal to about 20 percent by weight of the total amount of anionic surfactant used in forming the latex polymer; (ii) preparing or providing a monomer emulsion in water which emulsion contains an anionic surfactant; (iii) adding about 50 percent or less of said monomer emulsion to said aqueous phase to thereby initiate seed polymerization and to form a seed polymer, said aqueous phase containing a free radical initiator; and (iv) adding the remaining percent of said monomer emulsion to the composition of (iii) and heating to complete an emulsion polymerization thus forming a latex polymer.

    摘要翻译: 一种制备胶乳聚合物的方法,该方法是(i)制备或提供含有阴离子表面活性剂的水相,其任选量小于或等于形成所述阴离子表面活性剂所用阴离子表面活性剂的总量的约20重量% 胶乳聚合物;(ii)在水中制备或提供单体乳液,该乳液含有阴离子表面活性剂;(iii)向所述水相中加入约50%或更少的所述单体乳液,从而引发种子聚合并形成种子聚合物, 所述水相含有自由基引发剂; 和(iv)将所述单体乳液的剩余百分比加入到(iii)的组合物中并加热以完成乳液聚合,从而形成胶乳聚合物。