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107 条记录 (耗时 0.031 秒)

    Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines
    13.
    发明授权
    Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines 有权
    水凝胶与2-氧代四氢-1,3-恶嗪二次交联的方法

    公开(公告)号：US06657015B1

    公开(公告)日：2003-12-02

    申请号：US09831382

    申请日：2001-05-17

    申请人： Ulrich Riegel ,  Matthias Weismantel ,  Volker Frenz ,  Thomas Daniel ,  Fritz Engelhardt

    发明人： Ulrich Riegel ,  Matthias Weismantel ,  Volker Frenz ,  Thomas Daniel ,  Fritz Engelhardt

    IPC分类号： C08F830

    CPC分类号： C08F8/30 ,  C08J3/245 ,  C08J2300/14 ,  C08J2333/02 ,  C08F220/06

    摘要： Liquid-absorbent polymers are prepared by a process for the gel and/or surface postcrosslinking of water-absorbent polymers by the polymer being treated with a surface postcrosslinking solution and being postcrosslinked and dried during and after the treatment by raising the temperature, wherein the crosslinker comprises a compound of the formula I where R1 is hydrogen, C1-C4-alkyl, C1-C4-hydroxyalkyl, trialkylsilyl or acetyl and R2, R2′, R3, R3′, R4, R4′ are each independently hydrogen, C1-C12-alkyl, C2-C12-alkenyl or C6-C12-aryl, dissolved in an inert solvent, and are used in hygiene articles, packaging materials and nonwovens.

    摘要翻译： 通过用表面后交联溶液处理的聚合物对吸水性聚合物进行凝胶和/或表面后交联的方法制备液体吸收性聚合物，并且在处理期间和之后通过升高温度进行后交联和干燥，其中交联剂 包括其中R 1为氢，C 1 -C 4 - 烷基，C 1 -C 4 - 羟基烷基，三烷基甲硅烷基或乙酰基且R 2，R 2'，R 3，R 3'的式I化合物， >，R 4，R 4'各自独立地为氢，C 1 -C 12 - 烷基，C 2 -C 12 - 烯基或C 6 -C 12 - 芳基，溶于惰性溶剂中，并用于卫生用品，包装材料 和无纺布。

    Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones
    14.
    发明授权
    Method for cross-linking hydrogels with bis- and poly-2-oxazolidinones 失效
    用双 - 和多 - 2-恶唑烷酮交联水凝胶的方法

    公开(公告)号：US06503979B1

    公开(公告)日：2003-01-07

    申请号：US09622853

    申请日：2000-08-28

    申请人： Rüdiger Funk ,  Volker Frenz ,  Ulrich Riegel ,  Matthias Weismantel ,  Fritz Engelhardt ,  Thomas Daniel

    发明人： Rüdiger Funk ,  Volker Frenz ,  Ulrich Riegel ,  Matthias Weismantel ,  Fritz Engelhardt ,  Thomas Daniel

    IPC分类号： C08F830

    CPC分类号： C08J3/245 ,  A61L15/60 ,  C08F8/30 ,  C08G73/06 ,  C08J2300/14 ,  Y10S524/916

    摘要： The invention contains a process for the surface postcrosslinking of water-absorbing polymers in which the polymers are treated with a surface postcrosslinking solution and during or after the treatment are postcrosslinked by means of an increase in temperature and are dried, wherein the crossiinker comprises a bis-2-oxazolidinone or a poly-2-oxazolidinone comprising structural units of the formula in which R1 is branched or unbranched C1-C18-alkylene, branched or unbranched C2-C18-alkenylene, C5-C18-cycloalkylene, phenylene, naphthylene, anthracenylene, hydrocarbon-substituted phenylene, naphthylene or anthracenylene or another substituted or unsubstituted C6-C18-arylene radical, R2 is branched or unbranched C1-C18-alkylene and n is an integer from 1 to 50 or a mixture of bis-2-oxazolidinones and poly-2-oxazolidinones dissolved in an inert solvent.

    摘要翻译： 本发明包含用于表面后吸附聚合物的方法，其中聚合物用表面后交联溶液处理，并且在处理期间或之后通过温度升高进行后交联并干燥，其中交联剂包含双 -2-恶唑烷酮或包含结构单元的聚-2-恶唑烷酮，其中R1是支链或非支链C1-C18-亚烷基，支链或非支链C2-C18-亚烯基，C5-C18-亚环烷基，亚苯基，亚萘基，蒽亚基， 烃取代的亚苯基，亚萘基或亚蒽基或其它取代或未取代的C 6 -C 18亚芳基，R 2是支链或非支链的C 1 -C 18 - 亚烷基，n是1至50的整数或双-2-恶唑烷酮和聚 -2-恶唑烷酮溶解在惰性溶剂中。

    Absorbent polymers, manufacturing process and their use in particular for sanitary articles
    16.
    发明授权
    Absorbent polymers, manufacturing process and their use in particular for sanitary articles 失效
    吸收性聚合物，制造工艺及其特别用于卫生用品的用途

    公开(公告)号：US5258448A

    公开(公告)日：1993-11-02

    申请号：US957006

    申请日：1992-10-06

    申请人： Paul Mallo ,  Fritz Engelhardt ,  Ulrich Riegel ,  Rudiger Funk

    发明人： Paul Mallo ,  Fritz Engelhardt ,  Ulrich Riegel ,  Rudiger Funk

    IPC分类号： A61F13/53 ,  A61L15/18 ,  A61L15/60 ,  C08F2/32 ,  C08F6/06 ,  C08F6/24 ,  C08F8/00 ,  C08F20/04 ,  C08F20/06 ,  C08F120/04

    CPC分类号： C08F20/06 ,  A61L15/18 ,  A61L15/60

    摘要： Hydrophobic, cross-linked absorbent polymers, insoluble in water, in the form of microbeads , based on silica and acrylic acid partially salified by an alkali metal, are obtained by a polymerization process in a water-in-oil suspension in which an aqueous phase obtained extemporaneously from (1), an aqueous solution containing one or more hydrosoluble polymerization initiators, which are free radical generators, and (2), an aqueous phase containing at a concentration of 50.+-.15% by weight a mixture of by weight 2 to 25% of colloidal silica and 98 to 75% of acrylic acid of which 60 to 80 is salified by an alkaline metal, is introduced slowly, under agitation, into a totally deoxygenated oil phase maintained at boiling point and containing a protective colloid, with an aqueous phase to oil phase weight ratio of between 0.8 and 1.2, then when the polymerization reaction is finished, 15 to 55% of the water present is eliminated by azeotropic distillation with recycling of the organic solvent, then 0.01 to 0.06% in molar proportions relative to the monomers of ethyleneglycol diglycidyl ether is introduced into the reaction mixture at boiling point and azeotropic distillation of the residual water is continued until a suspension is obtained which has a dry content of 85.+-.10% and finally the desired polymer is isolated by filtration; use as absorbent compound and in a sanitary article.

    摘要翻译： 通过在油包水悬浮液中的聚合方法获得以碱金属部分盐化的基于二氧化硅和丙烯酸的微珠形式的不溶于水的疏水性交联吸收性聚合物，其中水相 从（1）中得到的含有一种或多种作为自由基发生剂的水溶性聚合引发剂的水溶液，和（2）含有浓度为50 +/- 15重量％的混合物的水相， 在搅拌下将2〜25％的胶体二氧化硅和98〜75％的丙烯酸（其中60〜80）用碱金属盐化，缓慢加入到保持在沸点并含有保护胶体的完全脱氧油相中， 水相 - 油相重量比在0.8和1.2之间，然后当聚合反应完成时，通过共沸蒸馏除去存在的15-55％的水，并回收有机溶液 nt，然后相对于乙二醇二缩水甘油醚单体的摩尔比例为0.01至0.06％，在沸点下引入该反应混合物，继续共沸蒸馏残余水直至获得干燥含量为85 + / -10％，最后通过过滤分离所需的聚合物; 用作吸收剂化合物和卫生制品。

    Postcrosslinking of water-absorbing polymers
    18.
    发明授权
    Postcrosslinking of water-absorbing polymers 有权
    吸水聚合物的后交联

    公开(公告)号：US08258223B2

    公开(公告)日：2012-09-04

    申请号：US13171107

    申请日：2011-06-28

    申请人： Ulrich Riegel ,  Thomas Daniel ,  Matthias Weismantel ,  Mark Elliott ,  Dieter Hermeling

    发明人： Ulrich Riegel ,  Thomas Daniel ,  Matthias Weismantel ,  Mark Elliott ,  Dieter Hermeling

    IPC分类号： C08J3/24 ,  C08F20/06 ,  C08F8/42

    CPC分类号： C08J3/245 ,  C08F220/06 ,  C08J2300/14

    摘要： The invention concerns a process for producing water-absorbing polymer, which comprises a base polymer A being mixed with a first aqueous solution B of at least one surface postcrosslinker and a second aqueous solution C of at least one polyvalent cation and thermally treated, wherein said base polymer A is based on at least 50% neutralized acid-functional monomer and said solutions B and C are metered wholly or partly concurrently through separate nozzles whereby a water-absorbing polymer having a high saline flow conductivity value is obtained.

    摘要翻译： 本发明涉及一种生产吸水聚合物的方法，其包括将基础聚合物A与至少一个表面后交联剂的第一水溶液B和至少一种多价阳离子的第二水溶液C混合并进行热处理，其中所述 基础聚合物A基于至少50％中和的酸官能单体，并且所述溶液B和C通过单独的喷嘴全部或部分同时计量，从而获得具有高盐水流动电导率值的吸水聚合物。