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    Aqueous resin composition, and method fo manufacturing a separable fastener using this composition
    2.
    发明公开
    Aqueous resin composition, and method fo manufacturing a separable fastener using this composition 有权
    用于生产可分式搭扣的水性树脂组合物和方法

    公开(公告)号：EP1229061A1

    公开(公告)日：2002-08-07

    申请号：EP02001934.5

    申请日：2002-01-31

    申请人： Kuraray Co., Ltd.

    发明人： Kato, Mitsuru ,  Higashinaka, Yukitoshi

    IPC分类号： C08G18/08 ,  C08L75/04 ,  A44B18/00

    CPC分类号： C08G18/0823 ,  A44B18/0003 ,  A44B18/0069 ,  A44B18/0092 ,  C08L75/04 ,  Y10T24/2733 ,  Y10T24/2758 ,  Y10T24/2775 ,  C08L33/00

    摘要： An aqueous resin composition satisfying the following criteria (I)-(III). When this aqueous resin composition is used to treat fibrous sheets, it gives fibrous products having excellent performance and durability without any problem regarding safety, hygiene or pollution, and in particular, when it is used as a back coating resin for a separable fastener, a separable fastener is obtained having excellent resistance to fiber dropout in washing and resistance to chlorine bleaching agents, together with good durability over very long periods of use.

    (I) The aqueous resin composition essentially comprises (a) an aqueous dispersion of a polyurethane resin obtained from a macromolecular polyol, organic polyisocyanate, chain extending agent and 2,2-dimethylolbutanoic acid as starting materials, and, if required, (b) an aqueous dispersion of an acrylic resin.
    (II) When the resin comprising this aqueous resin composition is essentially only a polyurethane resin, the inherent viscosity ( η inh ) of the polyurethane resin measured at a concentration of 0.5g/dL in dimethylformamide solution is in the range of 0.2 - 0.7 dL/g.
    (III) After this aqueous resin composition is dried, the elastic modulus at 25 °C of the film obtained by heat treatment at 80 °C for 8 hours is in the range of 8.0 x 10 6 - 5.0 x 10 8 Pa, and the elastic modulus at 80 °C thereof is 8.0 x 10 7 Pa or less.

    摘要翻译： 在满足以下条件（I）wässrige树脂组合物 - （III）。 当该wässrige树脂组合物被用于治疗纤维片材，它赋予纤维制品具有优异的性能和耐久性，而不在安全方面，卫生或污染的任何麻烦，尤其是，当它被用作背覆树脂用于可分式搭扣，一个 可分式搭扣用良好的耐久性过度使用的非常长的时期获得具有纤维脱落优异的耐洗涤和氯漂白剂，耐在一起。 （I）的wässrige树脂组合物基本上包括（a）从高分子多醇，有机，增链剂和2,2-二羟甲基丁酸作为起始原料得到的聚氨酯树脂的分散wässrige，和多异氰酸酯，如果需要的话，（b）中 丙烯酸类的水性分散体的树脂。 （II）当包括这种wässrige树脂组合物中的树脂是在二甲基甲酰胺溶液中的0.5克/分升的浓度测得的聚氨酯树脂的聚氨酯树脂基本上只，固有粘度（ETA INH）是在0.2的范围内 - 0.7分升 /克。 （III）本wässrige树脂组合物干燥后，在在80℃下通过热处理得到的膜在25℃的弹性模量进行8小时是在范围8.0×10 <6> - 5.0×10 <8> 帕，在80℃时的弹性模量为8.0×10 <7> Pa以下。