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    • 3. 发明申请
    • PRESSURE SENSITIVE ADHESIVE AND COMPOSITIONS PREPARED WITH SAME
    • 压力敏感性粘合剂及其组合物
    • WO2005075594A1
    • 2005-08-18
    • PCT/EP2005/050447
    • 2005-02-02
    • KRATON POLYMERS RESEARCH B.V.ST CLAIR, David
    • ST CLAIR, David
    • C09J7/02
    • C09J153/02C08F297/04C08L2666/02C09J7/387
    • Disclosed is a pressure sensitive adhesive comprising a tackifying resin and a block copolymer, the block copolymer having the general formula: S1-B1-S2-B2 wherein S1, B1, S2, and B2 are polymer blocks, and B 1 is a block of polymerized conjugated diene comprising at least 50 mole percent isoprene and having an apparent molecular weight of from 150,000 to 400,000; S 1 and S2 are blocks of polymerized mono-vinylaromatic hydrocarbon having a weight average molecular weight of from 12,000 to 40,000; and B2 is a block of polymerized conjugated diene comprising at least 50 mole percent isoprene having an apparent molecular weight of from 15,000 to 60,000. The weight ratio of B 1 over B2 is from 3.0 to 12.0; and the content of polymerized mono-vinylaromatic hydrocarbon is from 10 to 35 weight percent. The pressure sensitive adhesive can be used in the production of a composition comprising a substrate and adherent thereto the adhesive, such as a label, a tape, or a disposable product.
    • 公开了一种压敏粘合剂,其包含增粘树脂和嵌段共聚物,所述嵌段共聚物具有以下通式:S1-B1-S2-B2,其中S1,B1,S2和B2是聚合物嵌段,B 1是 包含至少50摩尔%的异戊二烯并具有15万至40万的表观分子量的聚合共轭二烯; S 1和S 2是重均分子量为12,000至40,000的聚合单乙烯基芳烃的嵌段; B2是包含表观分子量为15,000至60,000的至少50摩尔%异戊二烯的聚合共轭二烯嵌段。 B 1与B2的重量比为3.0〜12.0; 聚合单乙烯基芳族烃的含量为10〜35重量%。 压敏粘合剂可以用于制造包含基底并粘合到其上的粘合剂的组合物,例如标签,带或一次性产品。