公开(公告)号：US4221862A

公开(公告)日：1980-09-09

申请号：US700364

申请日：1976-06-28

申请人： Kenji Naito ,  Keitaro Ohe ,  Nobuo Tsuji

发明人： Kenji Naito ,  Keitaro Ohe ,  Nobuo Tsuji

IPC分类号： C08L25/14 ,  B01J13/12 ,  C03C13/00 ,  C04B14/42 ,  C08J3/12 ,  C08J3/14 ,  C08L33/00 ,  C08L33/02 ,  C08L33/04 ,  C08L33/10 ,  F16K27/06 ,  G03C1/95 ,  G03C1/02

CPC分类号： C03C13/002 ,  B01J13/125 ,  C03C13/001 ,  C04B14/42 ,  F16K27/062 ,  G03C1/95 ,  Y10T428/2989

摘要： One can obtain finely divided polymer particles by dissolving a polymer in a water immiscible volatile solvent which has a boiling point lower than that of water, then dispersing the solution into an aqueous medium, and removing the solvent from the dispersed oil phase droplets.

摘要翻译： 可以通过将聚合物溶解在沸点低于水的挥发性溶剂中，然后将溶液分散到水性介质中，并从分散的油相液滴中除去溶剂，可以获得细分的聚合物颗粒。

公开(公告)号：US3959153A

公开(公告)日：1976-05-25

申请号：US41647

申请日：1970-05-28

申请人： Shigeru Sadamatsu ,  Hiroyuki Kaneko ,  Keitaro Ohe ,  Daijiro Nishio

发明人： Shigeru Sadamatsu ,  Hiroyuki Kaneko ,  Keitaro Ohe ,  Daijiro Nishio

IPC分类号： G03G9/08 ,  G03G9/097 ,  G03G9/12 ,  G03G9/135 ,  G03G9/00

CPC分类号： G03G9/0806 ,  G03G9/09708 ,  G03G9/12 ,  G03G9/135

摘要： This invention is a method for manufacturing an electrophotographic developer for use in electrophotography or electrostatic recording processes. The developer comprises polymer particles by suspension polymerizing, in an aqueous phase, a polymerization liquid comprising at least one polymerizable vinyltype monomer, a polymerization initiator, and a finely divided dispersion stabilizer either sparingly soluble or insoluble in water and said monomer. Said polymerization liquid is blended prior to suspension polymerization. The improvement includes adding to said liquid, a resinous substance, as a fluidizer which is soluble in the monomer and having a solubility parameter in the range of from 7.8 to 16.1. During the blending, the dispersion stabilizer is uniformly dispersed throughout said polymerization liquid. Next, the blended polymerization liquid containing the fluidizer is suspended in the aqueous phase and then such blend is subjected to said suspension polymerization to effect polymer particles having diameters in the range of 0.1 to 100.mu..

摘要翻译： 本发明是用于制造用于电子照相或静电记录方法的电子照相显影剂的方法。 显影剂包括聚合物颗粒，其在水相中悬浮聚合，其包含至少一种可聚合乙烯基型单体，聚合引发剂和微溶于或不溶于水和所述单体的细分散稳定剂。 所述聚合液体在悬浮聚合之前共混。 改进之处在于，向所述液体中添加可溶于单体并具有7.8〜16.1范围内的溶解度参数的流化剂的树脂状物质。 在共混期间，分散稳定剂均匀分散在整个聚合液体中。 接着，将含有流化器的共混聚合液悬浮在水相中，然后将这种共混物进行所述悬浮聚合，以实现直径在0.1至100μm范围内的聚合物颗粒。

公开(公告)号：US4204070A

公开(公告)日：1980-05-20

申请号：US679612

申请日：1976-04-23

申请人： Fumiyuki Suzuki ,  Toshimitu Okutu ,  Keitaro Ohe

发明人： Fumiyuki Suzuki ,  Toshimitu Okutu ,  Keitaro Ohe

IPC分类号： C07C67/08 ,  C07C69/82

CPC分类号： C07C69/82 ,  C07C67/08

摘要： A process for preparing bis(hydroxyethyl)terephthalate and its low molecular weight oligomers in a reactor equipped with a rectifying column which comprises suspending or dissolving terephthalic acid in molten bis(hydroxyethyl)terephthalate and its low molecular weight oligomers at a temperature above the dew point of ethylene glycol and feeding gaseous or liquid ethylene glycol into the suspension or the solution to react it with the terephthalic acid, where the amount of ethylene glycol fed into the reactor is controlled so as to maintain the temperature inside the rectifying column at a temperature at which the ethylene glycol does not substantially distill off from the rectifying column and the partial pressure of the ethylene glycol is maximized.

摘要翻译： 一种在装有精馏塔的反应器中制备双（羟乙基）对苯二甲酸酯及其低分子量低聚物的方法，该方法包括将对苯二甲酸在高于露点的温度下将对苯二甲酸悬浮或溶解在熔融的双（羟乙基）对苯二甲酸酯及其低分子量低聚物中 的乙二醇，并将气态或液态乙二醇加入悬浮液或溶液中以与对苯二甲酸反应，其中进料到反应器中的乙二醇的量被控制以便将精馏塔内部的温度保持在 其中乙二醇基本上不从精馏塔中蒸馏出来，并且乙二醇的分压最大化。