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公开(公告)号：US5532323A
公开(公告)日：1996-07-02
申请号：US26407
申请日：1993-03-04
申请人： Kazutaka Yano , Katsuhiro Kajikawa , Kinya Nagasuna , Yoshio Irie
发明人： Kazutaka Yano , Katsuhiro Kajikawa , Kinya Nagasuna , Yoshio Irie
IPC分类号： A61L15/60 , C08F220/04 , C08F8/14 , C08J3/24
CPC分类号： C08F220/04 , A61L15/60
摘要： An absorbent resin exhibiting a high absorption ratio, having only a small water-soluble component content, and have excellent gel stability to withstand the effect of aging is produced. The production of the absorbent resin comprises a step of polymerizing a water-soluble monoethylenically unsaturated monomer by using, in a proportion of 0.01-0.3 mol % based on the amount of the water-soluble monoethylenically unsaturated monomer, a cross-linking agent having at least one group of the following formula I: ##STR1## wherein R.sup.1 is an alkylene group of 2 to 4 carbon atoms interposed between two polymerizing unsaturated groups in the molecular unit thereof and then heat-treating the resin produced by the polymerization at a temperature in the range of from 160.degree. to 230.degree. C.
摘要翻译： 产生具有高吸收比，仅具有小的水溶性组分含量并且具有优异的凝胶稳定性以抵抗老化的效果的吸收性树脂。 吸收性树脂的制造包括以水溶性单烯属不饱和单体的量为基准，以水溶性单烯键式不饱和单体的量计，以0.01-0.3摩尔％的比例使用水溶性单烯属不饱和单体的交联剂 至少一组下列通式I：（CH2CH2OR1O）（I）其中R1是分子单元中两个聚合不饱和基团之间插入2至4个碳原子的亚烷基，然后热处理由聚合产生的树脂 温度范围为160〜230℃。
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公开(公告)号：US5478879A
公开(公告)日：1995-12-26
申请号：US822916
申请日：1992-01-21
CPC分类号： C08F2/10 , Y10S524/916
摘要： A method for the production of an absorbent resin, which method comprises mixing 100 parts by weight of (A) a hydrated gel of absorbent resin which is resulted from aqueous solution polymerization having a polymerization ratio in the range of from 60 to 99%, an average particle diameter in the range of from 0.1 to 200 mm, a water content in the range of from 30 to 90% by weight, and a temperature in the range of from 40.degree. to 110.degree. C., with from 1 to 50 parts by weight of (B) a substantially dry fine absorbent resin powder having an average particle diameter smaller than the average particle diameter assumed by said hydrated gel of absorbent resin (A) while in a dried state, then raising the polymerization ratio of said hydrated gel of absorbent resin (A) to a level higher than the polymerization ratio of said hydrated gel when being mixed.
摘要翻译： 一种制造吸收性树脂的方法，该方法包括将100重量份由（A）由聚合率为60-99％范围的水溶液聚合得到的吸水性树脂的水合凝胶， 平均粒径为0.1〜200mm，水含量为30〜90重量％，温度为40〜110℃，1〜50份 （B）在干燥状态下，平均粒径小于由吸水性树脂（A）的所述水合凝胶构成的平均粒径的基本上干燥的细小吸水树脂粉末，然后提高所述水合凝胶的聚合比例 的吸水性树脂（A）的混合比例高于所述水合凝胶的混合比。
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公开(公告)号：US5229488A
公开(公告)日：1993-07-20
申请号：US576942
申请日：1990-09-04
IPC分类号： C08F6/00
CPC分类号： C08F6/001
摘要： An absorbent resin is produced by a method which comprises adding to 100 parts by weight of an absorbent resin powder an aqueous liquid containing 7 to 100 parts by weight of water and a reducing substance in the presence of 0.01 to 5 parts by weight of at least one additive selected from the group consisting of water-insoluble fine powders and surfactants. The absorbent resin thus produced excels in absorption properties and exhibits a low residual monomer content.
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4.发明授权Process for preparing an absorbent resin crosslinked with a mixture of trimethylolpropane diacrylate and triacrylate 失效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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公开(公告)号：US06998447B2
公开(公告)日：2006-02-14
申请号：US10108572
申请日：2002-03-29
IPC分类号： C08F8/42 , C08F8/44 , C08F20/06 , C08F120/06 , C08F220/06
摘要： In the production of an acrylate polymer by the steps of preparing a water-soluble unsaturated monomer having a ratio of neutralization in the range of 30 to 100 mol % and containing 50 to 100 mol % of an acrylate and then polymerizing the monomer, a method for the production of a hydrophilic resin which comprises using a water-soluble unsaturated monomer having a β-hydroxy propionic acid (salt) content of not more than 1,000 ppm. The hydrophilic resin obtained by this method exhibits excellent physical properties and has only a small residual monomer content. Further, a residual monomer content neither occurs nor increases in any using conditions.
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公开(公告)号：US20050113542A1
公开(公告)日：2005-05-26
申请号：US11014969
申请日：2004-12-20
摘要： In the production of an acrylate polymer by the steps of preparing a water-soluble unsaturated monomer having a ratio of neutralization in the range of 30 to 100 mol % and containing 50 to 100 mol % of an acrylate and then polymerizing the monomer, a method for the production of a hydrophilic resin which comprises using a water-soluble unsaturated monomer having a β-hydroxy propionic acid (salt) content of not more than 1,000 ppm. The hydrophilic resin obtained by this method exhibits excellent physical properties and has only a small residual monomer content. Further, a residual monomer content neither occurs nor increases in any using conditions.
摘要翻译： 在制备丙烯酸酯聚合物时，通过以下步骤制备中和度在30-100mol％范围内并含有50-100mol％丙烯酸酯的水溶性不饱和单体，然后使单体聚合， 用于生产亲水性树脂，其包括使用具有不超过1,000ppm的β-羟基丙酸（盐）含量的水溶性不饱和单体。 通过该方法获得的亲水性树脂显示出优异的物理性能，并且仅具有小的残留单体含量。 此外，残留的单体含量也不会发生，也不会在任何使用条件下增加。
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公开(公告)号：US07078458B2
公开(公告)日：2006-07-18
申请号：US11014969
申请日：2004-12-20
摘要： In the production of an acrylate polymer by the steps of preparing a water-soluble unsaturated monomer having a ratio of neutralization in the range of 30 to 100 mol % and containing 50 to 100 mol % of an acrylate and then polymerizing the monomer, a method for the production of a hydrophilic resin which comprises using a water-soluble unsaturated monomer having a β-hydroxy propionic acid (salt) content of not more than 1,000 ppm. The hydrophilic resin obtained by this method exhibits excellent physical properties and has only a small residual monomer content. Further, a residual monomer content neither occurs nor increases in any using conditions.
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公开(公告)号：US06388000B1
公开(公告)日：2002-05-14
申请号：US08427734
申请日：1995-04-24
IPC分类号： C08F2006
摘要： In the production of an acrylate polymer by the steps of preparing a water-soluble unsaturated monomer having a ratio of neutralization in the range of 30 to 100 mol % and containing 50 to 100 mol % of an acrylate and then polymerizing the monomer, a method for the production of a hydrophilic resin which comprises using a water-soluble unsaturated monomer having a &bgr;-hydroxy propionic acid (salt) content of not more than 1,000 ppm. The hydrophilic resin obtained by this method exhibits excellent physical properties and has only a small residual monomer content. Further, a residual monomer content neither occurs nor increases in any using conditions.
摘要翻译： 在制备丙烯酸酯聚合物时，通过以下步骤制备中和度在30-100mol％范围内并含有50-100mol％丙烯酸酯的水溶性不饱和单体，然后使单体聚合， 用于生产亲水性树脂，其包括使用具有不超过1,000ppm的β-羟基丙酸（盐）含量的水溶性不饱和单体。 通过该方法获得的亲水性树脂显示出优异的物理性能，并且仅具有小的残留单体含量。 此外，残留的单体含量也不会发生，也不会在任何使用条件下增加。
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公开(公告)号：US5264495A
公开(公告)日：1993-11-23
申请号：US691820
申请日：1991-04-26
IPC分类号： A61L15/60 , C08F265/06 , C08F291/00 , C08F265/02 , C08F267/02
CPC分类号： A61L15/60 , C08F265/06 , C08F291/00
摘要： A method for the production of a salt-resistant absorbent resin, which comprises subjecting an aqueous solution of at least one monomer component (A) selected from the group consisting of unsaturated carboxylic acids and salts thereof to aqueous solution polymerization in the presence of from 1 to 30 parts by weight, based on 100 parts by weight of said monomer component (A), of an absorbent resin (B).
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公开(公告)号：US5338810A
公开(公告)日：1994-08-16
申请号：US27678
申请日：1993-03-08
申请人： Tadao Shimomura , Yoshio Irie , Hitoshi Takahashi , Katsuhiro Kajikawa , Jyunichi Saga , Teruaki Fujiwara , Takumi Hatsuda
发明人： Tadao Shimomura , Yoshio Irie , Hitoshi Takahashi , Katsuhiro Kajikawa , Jyunichi Saga , Teruaki Fujiwara , Takumi Hatsuda
IPC分类号： C07C51/41 , C07C51/50 , C07C57/04 , C08F2/00 , C08F120/06 , C08F130/04
CPC分类号： C07C51/50 , A61L15/24 , A61L15/28 , B01J19/24 , C08F2/01 , C08F2/10 , B01J2219/185 , B01J2219/1923
摘要： A method for the production of an acrylate by the neutralization reaction of acrylic acid and a basic substance, comprising sequentially (A) a step of supplying acrylic acid and said basic substance to water thereby subjecting them to a neutralization reaction while constantly retaining the neutralization ratio of acrylic acid within the neutralization reaction system in the range of 75 to 100 mol %, (B) a step of adjusting the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 100.1 to 110 mol % by supplying said basic substance to said neutralization reaction system, (C) a step of retaining the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 100.1 to 110 mol % for a period in the range of 1 to 120 minutes thereby allowing the neutralization reaction product to age, and (D) a step of adjusting the neutralization ratio of acrylic acid within said neutralization reaction system in the range of 20 to 100 mol % by supplying acrylic acid to said neutralization reaction system, and a method for the production of an acrylate-containing polymer using the acrylate.
摘要翻译： 一种通过丙烯酸和碱性物质的中和反应制备丙烯酸酯的方法，其包括依次（A）将丙烯酸和所述碱性物质供给水的步骤，由此使其进行中和反应，同时保持中和率 的丙烯酸在75〜100摩尔％的范围内，（B）将所述中和反应体系中的丙烯酸的中和比例调整为100.1〜110摩尔％的步骤，通过供给所述碱性物质 所述中和反应体系中，（C）将所述中和反应体系中的丙烯酸中和比例保持在1〜120分钟的范围内的步骤，为100-1〜110摩尔％，从而使中和反应产物 （D）将所述中和反应体系中丙烯酸的中和比调节至2的范围 通过向所述中和反应体系供给丙烯酸，0〜100摩尔％，以及使用该丙烯酸酯制造含丙烯酸酯的聚合物的方法。
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