公开(公告)号：US5697033A

公开(公告)日：1997-12-09

申请号：US736203

申请日：1996-10-25

申请人： Kazuhiro Ichikawa ,  Yoshiro Koga

发明人： Kazuhiro Ichikawa ,  Yoshiro Koga

IPC分类号： G03G15/02 ,  G03G15/01 ,  G03G15/16

CPC分类号： B82Y15/00 ,  G03G15/161 ,  G03G15/167 ,  G03G15/1685 ,  G03G2215/1628 ,  G03G2215/1633

摘要： A transfer means has a film lightly contacting a back surface of a transfer medium and applying a transfer field thereto. The film rises rapidly with respect to a contact portion with the back surface of the transfer medium on the upstream side of the direction of movement of the transfer medium relative to the film, and slopes gently from the contact portion in a continuous curve on a downstream side of the direction of movement. The film is capable of displacement between a support and an image carrier, and contacts and disengages the transfer medium according to the presence or absence of electrostatic adsorptive force due to the supply or withdrawal of an electric current.

摘要翻译： 转印装置具有与转印介质的背面轻微接触并向其施加转印场的膜。 相对于与转印介质相对于膜的移动方向的上游侧的转印介质的背面的接触部分，薄膜快速上升，并且在下游的连续曲线中从接触部分缓缓倾斜 侧面的运动方向。 该膜能够在载体和图像载体之间移动，并且根据由于电流的供应或引出而导致的静电吸附力的存在或不存在而使转印介质接触和脱离。

公开(公告)号：US5475081A

公开(公告)日：1995-12-12

申请号：US151474

申请日：1993-11-12

申请人： Yoichi Imai ,  Osamu Komiyama ,  Kazuhiro Ichikawa

发明人： Yoichi Imai ,  Osamu Komiyama ,  Kazuhiro Ichikawa

IPC分类号： C08G75/02 ,  C08G75/14

CPC分类号： C08G75/0254

摘要： A particle size of potyarylene sulfide obtained in polymerization is controlled by a process characterized in that a gaseous phase part of a reactor is cooled or heated after starting decreasing a temperature of a reaction system o an end of precipitation of polyarylene sulfide formed In an embodiment, a water content in the reaction system is 0.8 to 1.7 moles per mole of the alkali metal sulfide; the gaseous phase part of the reactor is cooled in a polymerization stage to thereby condense a part of a gaseous phase in the reactor and the condensed liquid is refluxed to a liquid phase in the reactor; and the gaseous phase part is only cooled after starting decreasing the temperature of the reaction system, whereby high molecular weight polyarylene sulfide suitable for powder coating is formed, which has a weight average molecular weight of at least 30,000 and an average particle size of 50 to 80 .mu.m, wherein particles of 40 to 150 .mu.m account for at least 90% by weight of the whole particles in a particle size distribution, and the amount of particles of 180 .mu.m or more is 0.5% by weight or less.

摘要翻译： 通过以下方法控制在聚合中获得的聚亚芳基硫醚的粒度：其特征在于反应器的气相部分在开始之后冷却或加热，降低形成的聚芳硫醚沉淀的反应体系的温度。在一个实施方案中， 反应体系中的水含量为每摩尔碱金属硫化物0.8〜1.7摩尔; 将反应器的气相部分在聚合阶段中冷却，从而在反应器中冷凝一部分气相，并将冷凝的液体回流至反应器中的液相; 并且气相部分在开始降低反应体系的温度后才被冷却，由此形成适用于粉末涂料的高分子量聚芳硫醚，其重均分子量为至少30,000，平均粒径为50至 80μm，其中40〜150μm的粒子占粒径分布中的全部粒子的至少90重量％，并且180μm以上的粒子的量为0.5重量％以下。