公开(公告)号：US4565832A

公开(公告)日：1986-01-21

申请号：US677678

申请日：1984-11-30

申请人： Toshiyuki Kobashi ,  Shoyo Takagi ,  Hideo Naka

发明人： Toshiyuki Kobashi ,  Shoyo Takagi ,  Hideo Naka

IPC分类号： C08F6/00 ,  B01D15/08 ,  B01J20/26 ,  B01J20/281 ,  B01J20/285 ,  C08F2/18 ,  C08F2/44 ,  C08F6/06 ,  C08F6/24 ,  C08F18/00 ,  C08F18/08 ,  C08F20/00 ,  C08F20/18 ,  C08F20/32 ,  C08F218/08 ,  G01N30/88 ,  C08J9/28

CPC分类号： C08F218/08 ,  B01J20/26

摘要： The present invention relates to a process for producing a packing material for use in liquid chromatography which comprises aqueous suspension polymerizing vinyl acetate, a (meth)acrylic acid ester or a glycidyl monovinyl ester or ether with a monomer mixture composed mainly of a cross-linking monomer in the presence of a diluent selected from among epichlorohydrin and glycidyl ethers and thereafter removing it from the resulting polymer particles by ring-opening the epoxy groups in said diluent. This process provides a packing material for use in liquid chromatography which is uniform and porous and moreover is excellent in mechanical strength.

摘要翻译： 本发明涉及一种用于制备用于液相色谱法的包装材料的方法，该方法包括将乙酸乙烯酯，（甲基）丙烯酸酯或缩水甘油基单乙烯基酯或醚与含有主要由交联的单体混合物 在选自表氯醇和缩水甘油醚的稀释剂存在下，然后通过开环所述稀释剂中的环氧基团将其从所得聚合物颗粒中除去。 该方法提供均匀多孔的液相色谱用的包装材料，机械强度优异。

公开(公告)号：US4794152A

公开(公告)日：1988-12-27

申请号：US827213

申请日：1986-02-04

申请人： Toshiyuki Kobashi ,  Hideo Naka ,  Shoyo Takagi

发明人： Toshiyuki Kobashi ,  Hideo Naka ,  Shoyo Takagi

IPC分类号： B01D15/04 ,  C08F2/20 ,  C08F20/32 ,  C08F220/32 ,  C08F24/00

CPC分类号： C08F220/32 ,  C08F20/32 ,  Y10T428/2982

摘要： A bead-like glycidyl (meth)acrylate polymer is produced by aqueous suspension polymerization of glycidyl (meth)acrylate alone or a monomer mixture composed of more than 50 weight % of said monomer and at least one other monomer which forms the remainder, in the presence of a specific aqueous polymer, at a pH of from 2 to 9 and at a stirring speed of from 50 to 500 r.p.m. By heat treating said bead-like polymer at a pH below 3 and at a temperature above 70.degree. C., hydroxyl groups resulting from the ring opening of the epoxy groups are introduced, whereby a solvent-insoluble bead-like polymer having a gel water content not less than 30% is produced.

摘要翻译： 通过单独的（甲基）丙烯酸缩水甘油酯的水悬浮聚合或由大于50重量％的所述单体组成的单体混合物和形成余量的至少一种其它单体制备珠状缩水甘油酯（甲基）丙烯酸酯聚合物， 特定水性聚合物的存在，pH为2至9，搅拌速度为50至500rpm 通过在低于3℃和高于70℃的温度下热处理所述珠状聚合物，引入由环氧基开环产生的羟基，由此引入具有凝胶水的溶剂不溶性珠状聚合物 产品含量不低于30％。

公开(公告)号：US4540754A

公开(公告)日：1985-09-10

申请号：US593240

申请日：1984-03-26

申请人： Toshiyuki Kobashi ,  Shoyo Takagi

发明人： Toshiyuki Kobashi ,  Shoyo Takagi

IPC分类号： C08F2/00 ,  C08F2/18 ,  C08F2/20 ,  C08F20/42 ,  C08F20/44 ,  D01F6/18

CPC分类号： C08F20/44

摘要： In the suspension polymerization of acrylonitrile in an aqueous medium, the polymerization is conducted in the presence of a water-soluble polymer and an oil soluble radical initiator while maintaining the acrylonitrile concentration higher than 9 weight percent in the polymerization system, whereby the polymerization of acrylonitrile in the water phase is suppressed and a high molecular weight polymer (weight average molecular weight not less than 400,000) having uniform particle diameters is produced.

摘要翻译： 在丙烯腈在水性介质中的悬浮聚合中，聚合在水溶性聚合物和油溶性自由基引发剂的存在下进行，同时在聚合体系中保持丙烯腈浓度高于9重量％，由此丙烯腈的聚合 在水相中被抑制，并且产生具有均匀粒径的高分子量聚合物（重均分子量不小于400,000）。