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1. 发明授权

US5180804A Improving the water absorption capacity of crosslinked, water-swellable polymers 失效
标题翻译：改善交联的水溶性聚合物的吸水能力
公开(公告)号：US5180804A
公开(公告)日：1993-01-19
申请号：US564083
申请日：1990-08-08
申请人： Manfred Niessner , Juergen Beck , Heinrich Hartmann , Andreas H. Kemna , Stefan Wickel
发明人： Manfred Niessner , Juergen Beck , Heinrich Hartmann , Andreas H. Kemna , Stefan Wickel
IPC分类号： A61F13/53 , A61F13/15 , A61F13/49 , B01J20/26 , C08F6/00 , C08J3/00
CPC分类号： C08F6/008
摘要： The water absorption capacity of crosslinked, water-swellable polymers is improved by a process in which a water-containing, finely divided polymer gel having a solids content of from 20 to 65% by weight is treated with steam at not less than 50.degree. C., the solids content of the water-containing polymer gel increasing by not more than 30% by weight, and the polymer gel is then dried in a conventional manner.
摘要翻译：交联的水溶胀性聚合物的吸水能力通过一种方法得到改善，其中具有20至65重量％固体含量的含水精细分散的聚合物凝胶用不低于50℃的蒸汽处理，含水聚合物凝胶的固体含量增加不超过30重量％，然后以常规方式干燥聚合物凝胶。

2. 发明授权

US5258473A Preparation of finely divided, water-soluble polymers 失效
标题翻译：精细分散的水溶性聚合物的制备
公开(公告)号：US5258473A
公开(公告)日：1993-11-02
申请号：US663019
申请日：1991-03-01
申请人： Manfred Niessner , Stefan Wickel , Walter Schneider , Juergen Beck , Heinrich Hartmann , Thomas Meyer
发明人： Manfred Niessner , Stefan Wickel , Walter Schneider , Juergen Beck , Heinrich Hartmann , Thomas Meyer
IPC分类号： C08F2/08 , C08F2/10 , C08F20/06
CPC分类号： C08F2/10
摘要： Finely divided, water-soluble polymers are prepared by polymerization of water-soluble, monoethylenically unsaturated monomers in not less than 20% strength by weight aqueous solution in the presence of a polymerization initiator in a kneader by a process in which from 0.1 to 10% by weight, based on the total monomers, of a surfactant are used in the polymerization, the polymerization initially being carried out to a conversion of the monomers of not less than 60% in the absence of the surfactant or in the presence of not more than 50% of the amount of surfactant, and the remaining amount of surfactant then being added to the reaction mixture and the polymerization completed. The addition of surfactant causes the polymer gel to disintegrate with formation of fine particles.
摘要翻译：通过在捏合机中聚合引发剂存在下，在不低于20重量％的重量水溶液中聚合水溶性单烯属不饱和单体，通过以下方法制备细分的水溶性聚合物，其中将0.1至10％在聚合过程中使用基于总单体的表面活性剂，在不存在表面活性剂的情况下，首先进行单体的转化率至少为60％，或者不超过 50％的表面活性剂，然后将表面活性剂的剩余量加入到反应混合物中并完成聚合。加入表面活性剂会导致聚合物凝胶与细颗粒的形成分解。

3. 发明授权

US5149750A Preparation of finely divided, gel-like, water-swellable copolymers 失效
标题翻译：精细分散，凝胶状，水溶性共聚物的制备
公开(公告)号：US5149750A
公开(公告)日：1992-09-22
申请号：US438876
申请日：1989-11-20
申请人： Manfred Niessner , Stefan Wickel , Wilfried Heide , Heinrich Hartmann
发明人： Manfred Niessner , Stefan Wickel , Wilfried Heide , Heinrich Hartmann
IPC分类号： A61L15/60 , C08F2/10 , C08F2/20 , C08F2/24 , C08F220/04 , C08F220/06 , C08F290/00 , C08F290/04 , C08F299/02
CPC分类号： C08F2/10 , A61L15/60 , Y10S526/909 , Y10S526/93
摘要： Finely divided, gel-like, water-swellable copolymers are prepared by copolymerizing(a) 100 parts by weight of water-soluble, monoethylenically unsaturated monomers,(b) from 0.01 to 5 parts by weight of monomers containing two or more ethylenically unsaturated double bonds and(c) from 0 to 20 parts by weight of water-insoluble, monoethylenically unsaturated monomersin 20-80% strength by weight aqueous solution in the presence of a polymerization initiator and from 0.1 to 10% by weight, based on the monomers used in the copolymerization, of a surfactant, by a process in which the monomers are copolymerized in the presence of initially from 0 to 50% by weight of the amount of surfactant to a conversion of not less than 60%, the remaining amount of surfactant is then added to the reaction mixture and the copolymerization is completed and the resulting gel particles dried.
摘要翻译：通过共聚合（a）100重量份的水溶性单烯属不饱和单体，（b）0.01至5重量份含有两个或更多个烯属不饱和双键的单体，制备细分，凝胶状，水溶胀性共聚物键，和（c）0-20重量份的在聚合引发剂存在下的20-80％重量比的水溶液和基于单体的0.1-10％重量的水不溶性单烯属不饱和单体用于表面活性剂的共聚中，其中单体在最初为0至50重量％的表面活性剂的量存在下进行共聚，转化率不低于60％，表面活性剂的剩余量然后加入到反应混合物中，共聚完成，所得凝胶颗粒干燥。

4. 发明申请

US20050209411A1 Method for producing low-odor hydrogel-forming polymers 有权
标题翻译：生产低气味水凝胶形成聚合物的方法
公开(公告)号：US20050209411A1
公开(公告)日：2005-09-22
申请号：US10511603
申请日：2003-05-12
申请人： Gerhard Nestler , Klaus Muller-Engel , Stefan Wickel
发明人： Gerhard Nestler , Klaus Muller-Engel , Stefan Wickel
IPC分类号： A61F13/53 , A61F13/49 , A61L15/60 , C08F2/00 , C08F8/00 , C08F20/06 , C08F220/06 , C08F20/02
CPC分类号： C08F20/06
摘要： This invention relates to a process for preparing a low-odor hydrogel-forming acrylic acid polymer, which comprises the steps of: a) preparing a polymeric hydrogel by free-radically polymerizing a monomer composition comprising at least 50% by weight of acrylic acid in an aqueous polymerization medium and converting said hydrogel into a particulate hydrogel or into hydrogel-forming powder; and optionally b) treating said particulate hydrogel or said hydrogel-forming powder with a crosslinking substance which, actually or latently, contain at least two functional groups capable of reacting with the carboxyl groups on the addition polymer; characterized by the acrylic acid used in step a) containing less than 400 ppm of acetic acid and propionic acid. It further relates to the hydrogel-forming addition polymers obtainable by the process and to their use.
摘要翻译：本发明涉及一种制备低气味形成水凝胶的丙烯酸聚合物的方法，其包括以下步骤：a）通过将包含至少50重量％丙烯酸的单体组合物自由基聚合制备聚合物水凝胶水性聚合介质，并将所述水凝胶转化为颗粒状水凝胶或形成水凝胶形成粉末; 并且任选地b）用实际上或潜在地含有至少两个能够与加成聚合物上的羧基反应的官能团的交联物质处理所述颗粒状水凝胶或所述水凝胶形成粉末; 其特征在于在步骤a）中使用的丙烯酸含有少于400ppm的乙酸和丙酸。它还涉及可通过该方法获得的水凝胶形成加成聚合物及其用途。

5. 发明申请

US20050176910A1 Method for the production of esters of polyalcohols 有权
标题翻译：生产多元醇酯的方法
公开(公告)号：US20050176910A1
公开(公告)日：2005-08-11
申请号：US10514569
申请日：2003-06-06
申请人： Thomas Jaworek , Thomas Daniel , Lothar Wolf , Rainer Koniger , Reinhold Schwalm , Gabriele Hartmann , Stefan Wickel
发明人： Thomas Jaworek , Thomas Daniel , Lothar Wolf , Rainer Koniger , Reinhold Schwalm , Gabriele Hartmann , Stefan Wickel
IPC分类号： C08G63/78 , A61L15/60 , C07C67/08 , C08G65/332 , C08F22/10
CPC分类号： C08G65/3322 , A61L15/60 , C07C67/08 , C07C69/54
摘要： Unsaturated acids are esterified with polyalcohols. The resulting reaction mixtures have utility.
摘要翻译：不饱和酸用多元醇酯化。所得反应混合物具有实用性。

6. 发明申请

US20050013865A1 Super-absorbing polymers containing tocopherol 审中-公开
标题翻译：含有生育酚的超吸收聚合物
公开(公告)号：US20050013865A1
公开(公告)日：2005-01-20
申请号：US10496775
申请日：2002-12-18
申请人： Gerhard Nestler , Jurgen Schroder , Stefan Wickel
发明人： Gerhard Nestler , Jurgen Schroder , Stefan Wickel
IPC分类号： C07C57/075 , A61L15/60 , C07C69/54 , C08F2/44 , C08F20/06 , C08L33/02 , A61K31/355 , A61K9/14
CPC分类号： A61L15/60 , C08L33/04
摘要： The present invention relates to novel tocopherol-containing superabsorbents, to a process for preparing them using tocopherol-containing acid-functional monomers, especially acrylic acid, and to their use for absorbing aqueous fluids.
摘要翻译：本发明涉及新颖的含有生育酚的超吸收剂，涉及使用含有生育酚的酸官能单体，特别是丙烯酸制备它们的方法及其用于吸收含水流体的用途。

7. 发明授权

US07393908B2 Cross-linked, water-swellable polymer and method for producing the same 失效
标题翻译：交联的水溶胀性聚合物及其制造方法
公开(公告)号：US07393908B2
公开(公告)日：2008-07-01
申请号：US10399185
申请日：2001-10-17
申请人： Wilfried Heide , Stefan Wickel , Thomas Daniel , Uwe Stüven
发明人： Wilfried Heide , Stefan Wickel , Thomas Daniel , Uwe Stüven
IPC分类号： C08F236/20 , C08F220/04 , C08F220/08 , C08F220/54
CPC分类号： C08F220/56 , C08F220/04
摘要： The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomers a) of a cross-linking combination, b1) a frist cross-linking agent with at least two (meth)acrylic ester moieties in the molecule and b2) a second cross-linking agent with at least two (meth)allyloxy moieties in the molecule, the molar ratio of b1) to b2) ranging from 0.7:1 to 10:1. The polymer according to the invention has a balanced property profile as regards absorptivity, gel strength, absorption speed and extractable componenents and can be advantageously produced by a continuous method.
摘要翻译：本发明涉及交联的水溶胀性聚合物，其包含聚合成a）水溶性单烯属不饱和单体的部分，和b）基于单体a）交联组合物的0.001至5摩尔％，b1）分子中具有至少两个（甲基）丙烯酸酯部分的第一交联剂，和b2）分子中具有至少两个（甲基）烯丙氧基部分的第二交联剂，b1）的摩尔比，至b2）范围为0.7：1至10：1。根据本发明的聚合物在吸收性，凝胶强度，吸收速度和可萃取成分方面具有平衡的性能特征，并且可以有利地通过连续方法制备。

8. 发明授权

US07307132B2 Method for producing low-odor hydrogel-forming polymers 有权
标题翻译：生产低气味水凝胶形成聚合物的方法
公开(公告)号：US07307132B2
公开(公告)日：2007-12-11
申请号：US10511603
申请日：2003-05-12
申请人： Gerhard Nestler , Klaus Joachim Mueller-Engel , Stefan Wickel
发明人： Gerhard Nestler , Klaus Joachim Mueller-Engel , Stefan Wickel
IPC分类号： C08F20/06 , C08F120/06 , C08F220/06
CPC分类号： C08F20/06
摘要： This invention relates to a process for preparing a low-odor hydrogel-forming acrylic acid polymer, which comprises the steps of: a) preparing a polymeric hydrogel by free-radically polymerizing a monomer composition comprising at least 50% by weight of acrylic acid in an aqueous polymerization medium and converting said hydrogel into a particulate hydrogel or into hydrogel-forming powder; and optionally b) treating said particulate hydrogel or said hydrogel-forming powder with a crosslinking substance which, actually or latently, contain at least two functional groups capable of reacting with the carboxyl groups on the addition polymer; characterized by the acrylic acid used in step a) containing less than 400 ppm of acetic acid and propionic acid. It further relates to the hydrogel-forming addition polymers obtainable by the process and to their use.
摘要翻译：本发明涉及一种制备低气味形成水凝胶的丙烯酸聚合物的方法，其包括以下步骤：a）通过将包含至少50重量％丙烯酸的单体组合物自由基聚合制备聚合物水凝胶水性聚合介质，并将所述水凝胶转化为颗粒状水凝胶或形成水凝胶形成粉末; 并且任选地b）用实际上或潜在地含有至少两个能够与加成聚合物上的羧基反应的官能团的交联物质处理所述颗粒状水凝胶或所述水凝胶形成粉末; 其特征在于在步骤a）中使用的丙烯酸含有少于400ppm的乙酸和丙酸。它还涉及可通过该方法获得的水凝胶形成加成聚合物及其用途。

9. 发明授权

US07250481B2 Method for the production of esters of polyalcohols 有权
标题翻译：生产多元醇酯的方法
公开(公告)号：US07250481B2
公开(公告)日：2007-07-31
申请号：US10514569
申请日：2003-06-06
申请人： Thomas Jaworek , Thomas Daniel , Lothar Wolf , Rainer Koeniger , Reinhold Schwalm , Gabriele Hartmann , Stefan Wickel
发明人： Thomas Jaworek , Thomas Daniel , Lothar Wolf , Rainer Koeniger , Reinhold Schwalm , Gabriele Hartmann , Stefan Wickel
IPC分类号： C08F22/10
CPC分类号： C08G65/3322 , A61L15/60 , C07C67/08 , C07C69/54
摘要： Unsaturated acids are esterified with polyalcohols. The resulting reaction mixtures have utility.
摘要翻译：不饱和酸用多元醇酯化。所得反应混合物具有实用性。

10. 发明申请

US20060036043A1 Method for the production of low-odor hydrogel-forming polymers 审中-公开
标题翻译：生产低气味水凝胶形成聚合物的方法
公开(公告)号：US20060036043A1
公开(公告)日：2006-02-16
申请号：US10538472
申请日：2003-12-08
申请人： Gerhard Nestler , Klaus Muller-Engel , Stefan Wickel
发明人： Gerhard Nestler , Klaus Muller-Engel , Stefan Wickel
IPC分类号： C08F120/02
CPC分类号： C08F8/00 , A61L15/60 , C08F20/06 , C08J3/12 , C08J2300/14 , C08L33/02
摘要： The present invention relates to a process for preparing a low-odor hydrogel-forming acrylic acid polymer, which comprises the steps of: a) preparing a polymeric hydrogel by free-radically polymerizing a monomer composition comprising at least 50% by weight of acrylic acid in an aqueous polymerization medium and converting said hydrogel into a particulate hydrogel or into hydrogel-forming powder; and optionally b) treating said particulate hydrogel or said hydrogel-forming powder with a crosslinking substance which, actually or latently, contain at least two functional groups capable of reacting with the carboxyl groups on the addition polymer; characterized by the acrylic acid used in step a) having a total acrylic acid oligomer content of less than 500 ppm, preferably not more than 400 ppm and especially not more than 300 ppm. Here and hereinafter, all ppm units are by weight based on acrylic acid. It is advantageous for the level of triacrylic acid (compound I where x=2) and higher oligomers of acrylic acid to be less than 100 ppm, especially less than 50 ppm and specifically less than 10 ppm.
摘要翻译：本发明涉及一种制备低气味水凝胶形成丙烯酸聚合物的方法，其包括以下步骤：a）通过使包含至少50重量％丙烯酸的单体组合物自由基聚合来制备聚合物水凝胶在水性聚合介质中并将所述水凝胶转化成颗粒状水凝胶或形成水凝胶形成粉末; 并且任选地b）用实际上或潜在地含有至少两个能够与加成聚合物上的羧基反应的官能团的交联物质处理所述颗粒状水凝胶或所述水凝胶形成粉末; 其特征在于在步骤a）中使用的丙烯酸的总丙烯酸低聚物含量小于500ppm，优选不大于400ppm，特别是不大于300ppm。在此以下，所有ppm单位为丙烯酸为基准。对于丙烯酸的三丙烯酸（化合物I，其中x = 2）和更高级的丙烯酸低聚物的水平低于100ppm，特别是小于50ppm，特别是小于10ppm是有利的。

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