公开(公告)号：US4954304A

公开(公告)日：1990-09-04

申请号：US331144

申请日：1989-03-31

申请人： Toshikazu Ohtake ,  Munekazu Hayashi ,  Satoshi Idemura ,  Kazumi Ohi ,  Yuji Kunitake

发明人： Toshikazu Ohtake ,  Munekazu Hayashi ,  Satoshi Idemura ,  Kazumi Ohi ,  Yuji Kunitake

IPC分类号： B32B15/14 ,  C08F283/10 ,  C08J5/24 ,  C08L63/10 ,  H05K1/03

CPC分类号： C08J5/24 ,  B32B15/14 ,  C08F283/10 ,  C08L63/10 ,  H05K1/0326

摘要： A process for producing a prepreg and a process for producing a laminated sheet therefrom are disclosed, the process for producing a prepreg comprising impregnating a fibrous base with an impregnating resin composition essentially comprising (A.sub.1) a room temperature liquid epoxy resin, (A.sub.2) an epoxy resin curing agent, (B.sub.1) a resin containing a polymerizable unsaturated group, (B.sub.2) a room temperature liquid polymerizable vinyl monomer, and (B.sub.3) a polymerization initiator and containing no solvent other than said polymerizable vinyl monomer (B.sub.2), to obtain an impregnated base, and then removing the polymerizable vinyl monomer present in said impregnated base and converting the resin components to the B-stage. The prepreg is tack-free and soft, and the laminated sheet obtained therefrom has improved metal foil peel strength and interlaminar peel strength.

公开(公告)号：US5843614A

公开(公告)日：1998-12-01

申请号：US821054

申请日：1997-03-20

申请人： Kinji Shinzo ,  Hideki Watanabe ,  Seiichi Uno ,  Munekazu Hayashi

发明人： Kinji Shinzo ,  Hideki Watanabe ,  Seiichi Uno ,  Munekazu Hayashi

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/09

CPC分类号： G03G9/0804

摘要： A novel manufacturing method for toner used in electrophotography employing no organic solvent is disclosed. The method comprises the steps of: (1) combing a colored melted resin (a) and an aqueous medium (b), wherein the colored melted resin (a) is prepared by heating and melting a kneaded material containing a synthetic resin for use in an electrophotographic toner having an ionic group and a coloring pigment, and the aqueous medium (b) contains a substance capable of neutralizing the ionic group, and possesses a raised temperature not lower than the softening point of the synthetic resin by way of heating with application of pressure where necessary; (2) dispersing the colored melted resin (a) in the aqueous medium (b) by mechanical means while maintaining a mixture of the colored melted resin (a) and the aqueous medium (b) at a temperature not lower than the softening point of the synthetic resin; (3) producing an aqueous suspension of colored resin microparticles by means of sudden cooling; (4) separating the colored resin microparticles from the suspension; and (5) drying the separated colored resin microparticles.

摘要翻译： 公开了一种用于不使用有机溶剂的电子照相中使用的调色剂的新颖制造方法。 该方法包括以下步骤：（1）将着色的熔融树脂（a）和水性介质（b）进行梳理，其中着色的熔融树脂（a）通过加热和熔化含有合成树脂的捏合材料制备， 具有离子性基团的电子照相调色剂和着色颜料，水性介质（b）含有能够中和离子性基团的物质，通过加热而具有不低于合成树脂的软化点的升高温度 必要的压力; （2）通过机械方式将着色的熔融树脂（a）分散在水性介质（b）中，同时将着色的熔融树脂（a）和水性介质（b）的混合物保持在不低于 合成树脂; （3）通过突然冷却制造着色树脂微粒的水性悬浮液; （4）将着色树脂微粒与悬浮液分离; 和（5）干燥分离的着色树脂微粒。