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公开(公告)号：US4028255A
公开(公告)日：1977-06-07
申请号：US620043
申请日：1975-10-06
CPC分类号： B01J20/28026 , B01J20/28004 , B01J20/28009 , B01J20/2803 , C08J3/21
摘要： A method for the preparation of composite particles having a specified range of particle size and comprising a finely divided, magnetic, particulate material embedded in a matrix of a linear polymeric material, which method comprises the steps of:A. forming discrete liquid droplets consisting of or containing the polymer, together with the particulate material;B. causing or allowing the droplets to form into solid particles;C. separating from the thus-formed particles those of the desired size range;D. re-converting the remaining particles to liquid form; andE. returning the re-liquified particles to step (a).
摘要翻译： 一种用于制备具有特定粒度范围的复合颗粒的方法，其包含嵌入在线性聚合物材料的基质中的细碎的磁性颗粒材料，该方法包括以下步骤：
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2.发明授权
公开(公告)号：US3941724A
公开(公告)日：1976-03-02
申请号：US492966
申请日：1974-07-26
申请人： Brian Alfred Bolto
发明人： Brian Alfred Bolto
CPC分类号： C08F2/06
摘要： In the known process of manufacturing an amphoteric polymeric composition which process comprises firstly polymerising a mixture comprising a monomer containing a basic group and a monomer containing an acidic group, the improvement of carrying out the process in the presence of a solvent system comprising formic acid.
摘要翻译： 在制造两性聚合物组合物的已知方法中，该方法包括首先使包含碱性基团的单体和含有酸性基团的单体的混合物聚合，在包含甲酸的溶剂体系存在下进行该方法的改进。
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3.发明授权Thermally regenerable amphoteric ion exchangers prepared by sequential treatment of polymeric beads with two reagents of opposing acid base character 失效热可再生两性离子交换剂通过使用具有相反酸碱特性的两种试剂连续处理聚合物珠来制备
公开(公告)号：US4115297A
公开(公告)日：1978-09-19
申请号：US676345
申请日：1976-04-12
摘要： A method of manufacturing amphoteric resins. Polymeric beads are treated sequentially with two reagents of opposite acid/base character. The resins are useful in the desalination of water.
摘要翻译： 一种制造两性树脂的方法。 聚合珠子依次用两种酸/碱性相反的试剂进行处理。 这些树脂可用于脱盐水。
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