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1. 发明授权

US5442014A Superabsorbent acrylic powders having low residual monomer content 失效
标题翻译：具有低残留单体含量的超吸收性丙烯酸粉末
公开(公告)号：US5442014A
公开(公告)日：1995-08-15
申请号：US304841
申请日：1994-09-13
申请人： Shu R. Rebre , Christian Collette , Sandrine Denie
发明人： Shu R. Rebre , Christian Collette , Sandrine Denie
IPC分类号： A61L15/60 , C08F2/20 , C08F2/32 , C08F6/00 , C08F6/06 , C08F6/10 , C08F20/06 , C08F120/04 , C08F120/06 , C08F8/42
CPC分类号： C08F20/06 , A61L15/60 , C08F6/006
摘要： Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and containing less than 50 ppm of residual monomer, well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, (ii) next absorbing a second acrylic monomer charge II into the gel particles, (iii) polymerizing in the gel particles the second acrylic monomer charge II, (iv) azeotropically dehydrating the acrylic polymer particulates thus obtained, (v) then treating the dehydrated particulates with hydrogen peroxide, and (vi) drying the superabsorbent particulates thus treated.
摘要翻译：超吸收剂部分中和的丙烯酸聚合物（例如聚丙烯酸）的颗粒，其平均粒度范围为100-500μm，基本上是单分散的，基本上没有粒度小于100μm的细粒，具有不均匀的表面通过（i）在有机介质中聚合丙烯酸单体电荷I的悬浮液并制备丙烯酸聚合物凝胶颗粒的悬浮液来制备非常适合各种卫生应用的球形颗粒形态并含有少于50ppm的残余单体，（ii）接着将第二丙烯酸类单体电荷II吸收到凝胶颗粒中，（iii）在凝胶颗粒中聚合第二丙烯酸类单体电荷II，（iv）使由此获得的丙烯酸类聚合物微粒共沸脱水，（v）然后处理用过氧化氢脱水的颗粒，和（vi）干燥如此处理的超吸收颗粒。

2. 发明授权

US5373066A Superabsorbent acrylic powders having low residual monomer content 失效
标题翻译：具有低残留单体含量的超吸收性丙烯酸粉末
公开(公告)号：US5373066A
公开(公告)日：1994-12-13
申请号：US104757
申请日：1993-08-12
申请人： Shu R. Rebre , Christian Collette , Sandrine Denie
发明人： Shu R. Rebre , Christian Collette , Sandrine Denie
IPC分类号： A61L15/60 , C08F2/20 , C08F2/32 , C08F6/00 , C08F6/06 , C08F6/10 , C08F20/06 , C08F120/04 , C08F120/06 , C08F8/06
CPC分类号： C08F20/06 , A61L15/60 , C08F6/006
摘要： Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and containing less than 50 ppm of residual monomer, well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, (ii) next absorbing a second acrylic monomer charge II into the gel particles, (iii) polymerizing in the gel particles the second acrylic monomer charge II, (iv) azeotropically dehydrating the acrylic polymer particulates thus obtained, (v) then treating the dehydrated particulates with hydrogen peroxide, and (vi) drying the superabsorbent particulates thus treated.
摘要翻译：超吸收剂部分中和的丙烯酸聚合物（例如聚丙烯酸）的颗粒，其平均粒度范围为100-500μm，基本上是单分散的，基本上没有粒度小于100μm的细粒，具有不均匀的表面通过（i）在有机介质中聚合丙烯酸单体电荷I的悬浮液并制备丙烯酸聚合物凝胶颗粒的悬浮液来制备非常适合各种卫生应用的球形颗粒形态并含有少于50ppm的残余单体，（ii）接着将第二丙烯酸类单体电荷II吸收到凝胶颗粒中，（iii）在凝胶颗粒中聚合第二丙烯酸类单体电荷II，（iv）使由此获得的丙烯酸类聚合物微粒共沸脱水，（v）然后处理用过氧化氢脱水的颗粒，和（vi）干燥如此处理的超吸收颗粒。

3. 发明授权

US5408006A Superabsorbent acrylic powders prepared via improved suspension polymerization 失效
标题翻译：通过改进的悬浮聚合制备超吸收性丙烯酸粉末
公开(公告)号：US5408006A
公开(公告)日：1995-04-18
申请号：US104756
申请日：1993-08-12
申请人： Shu R. Rebre , Christian Collette , Thierry Guerin
发明人： Shu R. Rebre , Christian Collette , Thierry Guerin
IPC分类号： A61L15/60 , C08F2/18 , C08F2/32 , C08F120/00 , C08F120/06 , G08F265/02
CPC分类号： C08F2/32 , A61L15/60
摘要： Particulates of a superabsorbent polymer, e.g., an acrylic polymer such as polyacrylic acid, well suited for a variety of hygienic applications, are prepared by (i) suspending an aqueous solution of a water-soluble monomer charge I in a hydrocarbon medium by means of a polymerizable surfactant having the general formula:R.sub.1 --O--(CH.sub.2 --CH.sub.2 --O).sub.n --R.sub.2wherein R.sub.1 is a hydrocarbon having at least 9 carbon atoms, R.sub.2 is an acryloyl, methacryloyl or maleoyl radical, and the degree of condensation n in respect of the ethylene oxide ranges from 30 to 70, (ii) polymerizing the suspension thus formed, producing a suspension of polymer gel particles and converting the surfactant to effectively remove same from the medium of polymerization, (iii) next absorbing a second monomer charge II into such gel particles, and (iv) polymerizing in the gel particles the second monomer charge II.
摘要翻译：通过（i）通过（i）将水溶性单体电荷I的水溶液悬浮在烃介质中，通过以下方法制备超吸收聚合物，例如丙烯酸聚合物如聚丙烯酸，例如聚丙烯酸，其适用于各种卫生应用，具有以下通式的可聚合表面活性剂：R1-O-（CH2-CH2-O）n-R2其中R1是具有至少9个碳原子的烃，R2是丙烯酰基，甲基丙烯酰基或马来酰基，缩合度n 对于环氧乙烷的范围为30至70，（ii）使由此形成的悬浮液聚合，产生聚合物凝胶颗粒的悬浮液并转化表面活性剂以有效地从聚合介质中除去，（iii）接下来吸收第二单体将电荷II转化成这样的凝胶颗粒，和（iv）在凝胶颗粒中聚合第二单体电荷II。

4. 发明授权

US5563218A Superabsorbent polymers 失效
标题翻译：超吸收性聚合物
公开(公告)号：US5563218A
公开(公告)日：1996-10-08
申请号：US294794
申请日：1994-08-25
申请人： Shu R. Rebre , Christian Collette , Thierry Guerin
发明人： Shu R. Rebre , Christian Collette , Thierry Guerin
IPC分类号： B01J20/26 , A61L15/24 , C08F2/00 , C08F2/32 , C08F120/04 , C08F120/06 , C08F220/06 , C08F265/00 , C08F265/02
CPC分类号： C08F220/06 , A61L15/24
摘要： Superabsorbent, high gel strength/short gel time acrylic polymers, well suited for the production of items of feminine hygiene/adult incontinence, are prepared by (a) inversely suspending an aqueous acrylic monomer phase in an organic solvent in the presence of an emulsifying agent having an HLB of from 8 to 12, the aqueous monomer phase also comprising a crosslinking agent therefor, (b) polymerizing the inverse suspension of acrylic monomer into a polymer gel, (c) absorbing a second charge of acrylic monomer into the polymer gel thus attained, the ratio of the amount of the second monomer charge to the amount of monomer in the beginning aqueous phase ranging from 1 to 1.2, (d) introducing a surfactant having an HLB of from 2 to 5 into the medium of polymerization, and (e) polymerizing the second monomer charge within the polymer gel.
摘要翻译：通过（a）在乳化剂存在下将有机丙烯酸类单体相反相悬浮在有机溶剂中来制备非常适合于生产女性卫生/成人失禁产品的超吸收剂，高凝胶强度/短凝胶时间丙烯酸聚合物具有8-12的HLB，含水单体相还含有交联剂，（b）将丙烯酸单体的反相悬浮液聚合成聚合物凝胶，（c）将丙烯酸单体的第二次装料吸收到聚合物凝胶中，因此第一单体电荷量与初始水相中单体量的比例为1-1.2，（d）将HLB为2-5的表面活性剂引入到聚合介质中，和（ e）在聚合物凝胶内聚合第二单体电荷。

5. 发明授权

US5412037A Superabsorbent acrylic powders 失效
标题翻译：超吸收性丙烯酸粉末
公开(公告)号：US5412037A
公开(公告)日：1995-05-02
申请号：US293031
申请日：1994-08-19
申请人： Shu R. Rebre , Christian Collette , Andre Kowalik
发明人： Shu R. Rebre , Christian Collette , Andre Kowalik
IPC分类号： A61L15/60 , C08F2/20 , C08F2/32 , C08F8/44 , C08F20/06 , C08F120/00 , C08F120/04 , C08F120/06 , C08F265/02
CPC分类号： C08F20/06 , A61L15/60
摘要： Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, such acrylic monomer charge I having a degree of neutralization greater than that desired in the final superabsorbent polymer, (ii) next absorbing a second acrylic monomer charge II into the gel particles, such acrylic monomer charge II having a degree of neutralization less than that desired in the final superabsorbent polymer, and (iii) polymerizing in the gel particles the second acrylic monomer charge II.
摘要翻译：超吸收剂部分中和的丙烯酸聚合物（例如聚丙烯酸）的颗粒，其平均粒度范围为100-500μm，基本上是单分散的，基本上没有粒度小于100μm的细粒，具有不均匀的表面通过（i）将丙烯酸类单体电荷I的悬浮液在有机介质中聚合并制备丙烯酸类聚合物凝胶颗粒的悬浮液，制备球形颗粒形态，并且非常适合于各种卫生应用，的中和度大于最终超吸收性聚合物中所需的中和度，（ii）接下来将第二丙烯酸类单体电荷II吸收到凝胶颗粒中，具有小于最终超吸收性聚合物中所需中和度的丙烯酸类单体电荷II，和 iii）在凝胶颗粒中聚合第二丙烯酸类单体电荷II。

6. 发明授权

US5397845A Superabsorbent acrylic powders 失效
公开(公告)号：US5397845A
公开(公告)日：1995-03-14
申请号：US104761
申请日：1993-08-12
申请人： Shu R. Rebre , Christian Collette , Andre Kowalik
发明人： Shu R. Rebre , Christian Collette , Andre Kowalik
IPC分类号： A61L15/60 , C08F2/20 , C08F2/32 , C08F8/44 , C08F20/06 , C08F120/00 , C08F120/04 , C08F120/06 , C08F2/18 , C08F265/02
CPC分类号： C08F20/06 , A61L15/60
摘要： Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, such acrylic monomer charge I having a degree of neutralization greater than that desired in the final superabsorbent polymer, (ii) next absorbing a second acrylic monomer charge II into the gel particles, such acrylic monomer charge II having a degree of neutralization less than that desired in the final superabsorbent polymer, and (iii) polymerizing in the gel particles the second acrylic monomer charge II.

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