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35 条记录 (耗时 0.021 秒)

    Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones
    8.
    发明授权
    Process for crosslinking hydrogels with bis- and poly-2- oxazolidinones 有权
    用双 - 和多 - 2-恶唑烷酮交联水凝胶的方法

    公开(公告)号：US06472478B1

    公开(公告)日：2002-10-29

    申请号：US09601349

    申请日：2000-08-18

    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： A61L15/60 ,  C08F8/30 ,  Y10S524/916 ,  Y10T442/699

    摘要： The invention relates to a process for the gel or 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 and dried by means of an increase in temperature, the crosslinker being a compound of the formula in which R1 and R2 independently of one another are H, hydroxyl, phenyl or C1-C6-alkyl, R3 is hydrogen, C1-C12-alkyl, C1-C12-alkenyl or C6-C12-aryl and R4 and R5 independently of one another are C1-C12-alkyl, C1-C12-alkenyl, C6-C12-aryl, hydroxyl, C1-C12-alkoxy or hydrogen, dissolved in an inert solvent, to water-absorbing polymers which can be obtained by said process, and to their use in hygiene articles, packaging materials and nonwovens.

    摘要翻译： 本发明涉及一种吸水聚合物的凝胶或表面后交联方法，其中聚合物用表面后交联溶液处理，并且在处理之间或之后，通过温度升高进行后交联和干燥，交联剂为 R 1和R 2彼此独立地是H，羟基，苯基或C 1 -C 6烷基的化合物，R 3是氢，C 1 -C 12 - 烷基，C 1 -C 12 - 烯基或C 6 -C 12 - 芳基，R 4和R 5 彼此独立地是溶解在惰性溶剂中的C 1 -C 12烷基，C 1 -C 12 - 烯基，C 6 -C 12 - 芳基，羟基，C 1 -C 12 - 烷氧基或氢，可以通过所述 过程，以及它们在卫生用品，包装材料和无纺布中的应用。

    Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones
    9.
    发明授权
    Method for the secondary cross-linking of hydrogels with N-acyl-2-oxazolidinones 失效
    水凝胶与N-酰基-2-恶唑烷酮二次交联的方法

    公开(公告)号：US06559239B1

    公开(公告)日：2003-05-06

    申请号：US09831920

    申请日：2001-05-29

    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 surface postcrosslinking solution comprises as crosslinker a compound of the formula I where R1, R2, R3 and R4 are independently hydrogen, C1-C12-alkyl, C1-C12-alkenyl, C6-C12-aryl or C1-C12-alkoxy, R5 is C1-C16-alkyl, C1-C4-hydroxyalkyl, C6-C12-aryl, C1-C16-alkenyl or a group of the formula —(CH2)n—COOH or —(CH2)n—SO3H in the form of the acid or a respective metal salt, ammonium salt or triethanolammonium salt thereof or —(CH2—CH2—O—)m—R6, R6 is hydrogen or C1-C16-alkyl, n is from 1 to 10, m is from 1 to 20 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进行凝胶和/或表面后吸附吸水性聚合物的方法制备液体吸收聚合物，并且在处理之间和之后通过升高温度进行后交联和干燥，其中表面 后交联溶液包含作为交联剂的式I化合物，其中R 1，R 2，R 3和R 4独立地是氢，C 1 -C 12 - 烷基，C 1 -C 12 - 烯基，C 6 -C 12 - 芳基或C 1 -C 12 - 烷氧基，R 5是C 1 -C 16 - 烷基，C 1 -C 4 - 羟基烷基，C 6 -C 12 - 芳基，C 1 -C 16 - 烯基或式 - （CH 2）n -COOH或 - （CH 2）n -SO 3 H的基团，其形式为酸或相应的 金属盐，铵盐或三乙醇铵盐或 - （CH 2 -CH 2 -O-）m -R 6，R 6是氢或C 1 -C 16 - 烷基，n为1至10，m为1至20，溶于惰性溶剂 ，用于卫生用品，包装材料和无纺布。

    Method for the secondary cross-linking of hydrogels with 2-oxotetrahydro-1,3-oxazines
    10.
    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。