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1. 发明授权

US5574121A Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate 失效
标题翻译：制备用三羟甲基丙烷二丙烯酸酯和三丙烯酸酯的混合物交联的吸收性树脂的方法
公开(公告)号：US5574121A
公开(公告)日：1996-11-12
申请号：US262065
申请日：1994-06-17
申请人： Yoshio Irie , Nobuyuki Harada , Kinya Nagasuna , Kohichi Hirota , Yoshihiko Masuda , Hideaki Nagano , Hideyuki Kubo
发明人： Yoshio Irie , Nobuyuki Harada , Kinya Nagasuna , Kohichi Hirota , Yoshihiko Masuda , Hideaki Nagano , Hideyuki Kubo
IPC分类号： A61L15/24 , C08F220/04 , C08F236/22
CPC分类号： C08F220/04 , A61L15/24 , Y10S526/93
摘要： A process for preparing an absorbent resin includes the steps of: preparing a first crosslinking agent (A) including at least two polymerizable unsaturated bonds; preparing a second crosslinking agent (B) including at least two polymerizable unsaturated bonds and hydroxyl groups; preparing a crosslinking agent including (A) and (B) with a ratio of (A) to (B) ranging from 95/5 to 50/50; and polymerizing a hydrophilic unsaturated monomer having at least one carboxyl group using the crosslinking agent. The crosslinking agent includes a crosslinking agent which includes a main component at least 90 percent by weight, the main component being an ester having at least two polymerizable unsaturated bonds, wherein the ester is composed of a polyhydroxy alcohol (C) having not more than six carbon atoms and at least three hydroxy groups, and an unsaturated carboxylic acid (D); and a molecular weight ratio of the main component to a standard compound (E) is in the range of from 0.7/1 to less than 1.3/1, (E) being an ester composed of (C) that composes the main component, and (D) that composes the main component, in which all the hydroxy groups in (C) are ester-linked with (D).
摘要翻译：制备吸收性树脂的方法包括以下步骤：制备包含至少两个可聚合不饱和键的第一交联剂（A）; 制备包含至少两个可聚合不饱和键和羟基的第二交联剂（B）; 制备包含（A）和（B）的交联剂，比例为（A）至（B）为95/5至50/50; 并使用交联剂聚合具有至少一个羧基的亲水性不饱和单体。交联剂包括交联剂，其包含至少90重量％的主要组分，主要组分是具有至少两个可聚合不饱和键的酯，其中该酯由不超过六个的多羟基醇（C）组成碳原子和至少三个羟基，和不饱和羧酸（D）; 并且主成分与标准化合物（E）的分子量比在0.7 / 1〜小于1.3 / 1的范围内，（E）是由构成主成分的（C）构成的酯，和（D）构成其中（C）中的所有羟基与（D）酯连接的主要组分。

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