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    • 3. 发明公开
    • HOT-MELT ADHESIVE
    • 热熔胶粘剂
    • EP2980179A1
    • 2016-02-03
    • EP14774177.1
    • 2014-03-25
    • Henkel AG&Co. KGAA
    • INOUE, KentarouMORIGUCHI, MasahiroMAEDA, Naohiro
    • C09J153/02
    • C09J153/02A61F13/15C08K5/01C09J145/00
    • Problem to be solved of the present invention is to provide a hot-melt adhesive agent which is capable of applying at low temperature, has an excellent adhesiveness at low temperature, and a disposable product obtained by employing the hot-melt adhesive agent. Means for solving the problem is a hot-melt adhesive agent comprised of a thermoplastic block copolymer (A) which is a copolymer of vinyl class aromatic hydrocarbons and conjugated diene compounds, wherein the thermoplastic block copolymer (A) comprises a radial type styrene block copolymer having a styrene content of 35 to 45% by weight and a diblock content of 50 to 90% by weight, and having a viscosity at 25°C as a 25% (by weight) toluene solution of not more than 250 mPa·s (A1).
    • 本发明要解决的问题是提供一种能够在低温下施用,在低温下具有优异的粘合性的热熔粘合剂以及通过使用该热熔粘合剂而获得的一次性产品。 解决该问题的手段是由乙烯基类芳香族烃与共轭二烯化合物的共聚物即热塑性嵌段共聚物(A)构成的热熔粘接剂,其中,热塑性嵌段共聚物(A)由放射型苯乙烯嵌段共聚物 其苯乙烯含量为35-45重量%,二嵌段含量为50-90重量%,并且在25℃下25%(重量)甲苯溶液的粘度不超过250mPa·s( A1)。