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    Adhesive based on a special polyurethaneurea with adjustable bonding force, and production and use thereof
    6.
    发明授权
    Adhesive based on a special polyurethaneurea with adjustable bonding force, and production and use thereof 有权

    公开(公告)号：US10883026B2

    公开(公告)日：2021-01-05

    申请号：US16764466

    申请日：2018-12-13

    申请人： Covestro Deutschland AG

    发明人： Marc-Stephan Weiser ,  Sascha Plug ,  Sebastian Doerr

    IPC分类号： A61L15/00 ,  A61L24/00 ,  A61L26/00 ,  C08G18/00 ,  C09J175/00 ,  C09J175/08 ,  A61L15/26 ,  C08G18/73 ,  C08G18/75 ,  C08G18/12 ,  C08G18/32 ,  C08G18/08 ,  C08G18/38 ,  C08G18/48 ,  C08G18/66 ,  A61L24/04 ,  A61L15/58

    摘要： The present invention relates to an adhesive producible from an aqueous polyurethaneurea dispersion comprising an amorphous polyurethaneurea (V1) obtainable by reacting at least A) one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of ≥1.8 and ≤2.6, B) one polyetherpolyol component, C) one amino-functional chain extender component having at least 2 isocyanate-reactive amino groups, containing at least one amino-functional compound C1) that does not have any ionic or ionogenic groups and/or an amino-functional compound C2) that has ionic or ionogenic groups, D) optionally further hydrophilizing components different than C2), E) optionally hydroxy-functional compounds having a molecular weight of 62 to 399 mol/g, F) optionally further polymeric polyols that are different than B), G) optionally one compound having exactly one isocyanate-reactive group or one compound having more than one isocyanate-reactive group, where only one of the isocyanate-reactive groups reacts with the isocyanate groups present in the reaction mixture under the reaction conditions chosen, and H) optionally one aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of >2.6 and ≤4, where components B) and F) together contain ≤30% by weight of component F), based on the total mass of components B) and F) and a hydrophilic polyisocyanate (V2) preparable at least from the components of I) an aliphatic, cycloaliphatic or araliphatic polyisocyanate component having an average isocyanate functionality of preferably ≥2.0 and ≤3.6, J) a polymeric, hydrophilic and monofunctional polyalkylene oxide component, K) optionally further hydrophilizing components different than J), L) optionally admixtures and auxiliaries. The invention likewise provides an adhesive layer and a product including the adhesive, a process for producing the adhesive layer, a specific polyurethaneurea, and the use of the adhesive and a kit having components (V1) and (V2).

    Waterborne polyurethane adhesive composition and method for bonding articles
    10.
    发明授权
    Waterborne polyurethane adhesive composition and method for bonding articles 有权
    水性聚氨酯粘合剂组合物和粘合物品的方法

    公开(公告)号：US09475971B2

    公开(公告)日：2016-10-25

    申请号：US13989532

    申请日：2011-11-24

    申请人： Dirk Achten ,  Wolfgang Arndt ,  Harald Kraus ,  Jan Weikard

    发明人： Dirk Achten ,  Wolfgang Arndt ,  Harald Kraus ,  Jan Weikard

    IPC分类号： C09J175/00 ,  C08F283/00 ,  C08G18/08 ,  C08G18/70 ,  C09J175/04

    CPC分类号： C09J175/00 ,  C08F283/006 ,  C08G18/0819 ,  C08G18/706 ,  C08G2170/80 ,  C08G2170/90 ,  C09J175/04 ,  Y10T156/1051 ,  Y10T428/31551

    摘要： The present invention relates to novel waterborne adhesives which are polymerizable by UV light and are capable of being activated by heat, and which particularly display good adhesion to difficult substrates, such as ethylene vinyl acetate copolymers (EVA) with a low vinyl acetate content, or rubber. The invention further provides a novel method in which, after the application of the waterborne adhesive to an article and drying, irradiation with UV light and at the same time or thereafter activation by heat are performed. The adhesive film which is irradiated and activated in this way is then bonded to a further article. The invention also provides the use of the adhesives to make items such as shoes.

    摘要翻译： 本发明涉及通过紫外光可聚合并能够被热活化的新型水性粘合剂，并且其特别显示出对困难的基材的良好粘附性，例如具有低乙酸乙烯酯含量的乙烯乙酸乙烯酯共聚物（EVA）或 橡胶。 本发明还提供了一种新的方法，其中在将水性粘合剂施加到制品上并干燥之后，进行紫外线照射，同时或之后进行热激活。 以这种方式照射和活化的粘合剂膜然后与另外的制品粘合。 本发明还提供了粘合剂用于制造诸如鞋的物品的用途。