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公开(公告)号：US4988568A
公开(公告)日：1991-01-29
申请号：US329567
申请日：1989-03-28
IPC分类号： B01J20/26 , C08F220/56 , C12N11/04 , C12N11/08 , G01N27/447 , G01N33/543
CPC分类号： G01N33/54313 , B01J20/26 , C08F220/56 , C12N11/04 , C12N11/08 , G01N27/44747 , Y10T428/2982
摘要： Hydrophilic fine gel particles, said particles being crosslinked polymer particles comprising 20-94.8% by weight of a monoethylenically unsaturated amide monomer, 5-60.0% by weight of a crosslinkable ethylenically unsaturated monomer, 0.1-30% by weight of an ethylenically unsaturated carboxylic acid, 0.1-50% by weight of an ester monomer of an acrylic or methacrylic acid, and 0-30% by weight of a monomer copolymerizable with the above-mentioned monomers, said particles having a particle diameter in a water-swollen state of 0.1-10 .mu.m and a weight-average particle diameter/number-average particle diameter ratio of 1.2 or less; and a process for producing hydrophilic fine gel particles having a particle diameter in a water-swollen state of 0.1-10 .mu.m and a weight-average particle diameter/number-average particle diameter ratio of 1.2 or less, which comprises copolymerizing a monomer mixture of 20-94.8% by weight of a monoethylenically unsaturated amide monomer, 5-60.0% by weight of a crosslinkable ethylenically unsaturated monomer, 0.1-30% by weight of an ethylenically unsaturated carboxylic acid, 0.1-50% by weight of an ester monomer of an acrylic or methacylic acid, and 0-30% by weight of a monomer copolymerizable with the above-mentioned monomers using a radical polymerization initiator in a solvent which dissolves these monomers but does not dissolve the resulting polymer.
摘要翻译： 亲水性精细凝胶颗粒，所述颗粒是交联聚合物颗粒，其包含20-94.8重量％的单烯属不饱和酰胺单体，5-60.0重量％的可交联烯属不饱和单体，0.1-30重量％的烯属不饱和羧酸 ，0.1-50重量％的丙烯酸或甲基丙烯酸的酯单体和0-30重量％的可与上述单体共聚的单体，所述颗粒的水溶胀状态的粒径为0.1 -10μm，重均粒径/数均粒径比为1.2以下; 以及具有水溶胀状态为0.1-10μm，重均粒径/数均粒径比为1.2以下的亲水性微细凝胶粒子的制造方法，其包括将单体混合物 20-94.8重量％的单烯属不饱和酰胺单体，5-60.0重量％的可交联的烯属不饱和单体，0.1-30重量％的烯属不饱和羧酸，0.1-50重量％的酯单体 的丙烯酸或甲基丙烯酸，和0-30重量％的可与上述单体共聚的单体，使用自由基聚合引发剂在溶解这些单体但不溶解所得聚合物的溶剂中。
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公开(公告)号：US5043407A
公开(公告)日：1991-08-27
申请号：US556366
申请日：1990-07-24
IPC分类号： B01J20/26 , C08F220/56 , C12N11/04 , C12N11/08 , G01N27/447 , G01N33/543
CPC分类号： G01N33/54313 , B01J20/26 , C08F220/56 , C12N11/04 , C12N11/08 , G01N27/44747 , Y10T428/2982
摘要： Hydrophilic fine gel particles, said particles being crosslinked polymer particles comprising 20-94.8% by weight of a monoethylenically unsaturated amide monomer, 5-60.0% by weight of a crosslinkable ethylenically unsaturated monomer, 0.1-30% by weight of an ethylenically unsaturated carboxylic acid, 0.1-50% by weight of an ester monomer of an acrylic or methacrylic acid, and 0-30% by weight of a monomer copolymerizable with the above-mentioned monomers, said particles having a particle diameter in a water-swollen state of 0.1-10 .mu.m and a weight-average particle diameter/number-average particle diameter ratio of 1.2 or less; and a process for producing hydrophilic fine gel particles having a particle diameter in a water-swollen state of 0.1-10 .mu.m and a weight-average particle diameter/number-average particle diameter ratio of 1.2 or less, which comprises copolymerizing a monomer mixture of 20-94.8% by weight of a monoethylenically unsaturated amide monomer, 5-60.0% by weight of a crosslinkable ethylenically unsaturated monomer, 0.1-30% by weight of an ethylenically unsaturated carboxylic acid, 0.1-50% by weight of an ester monomer of an acrylic or methacrylic acid, and 0-30% by weight of a monomer copolymerizable with the above-mentioned monomers using a radical polymerization initiator in a solvent which dissolves these monomers but does not dissolve the resulting polymer.
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