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    Pressure-sensitive adhesives with high molar masses and narrow molar mass distribution and process for preparing them
    5.
    发明授权
    Pressure-sensitive adhesives with high molar masses and narrow molar mass distribution and process for preparing them 有权
    具有高摩尔质量和较窄摩尔质量分布的压敏粘合剂及其制备方法

    公开(公告)号：US08846833B2

    公开(公告)日：2014-09-30

    申请号：US13720487

    申请日：2012-12-19

    申请人： tesa SE

    发明人： Alexander Prenzel

    IPC分类号： C08F2/00 ,  C08F4/00 ,  C08F20/06 ,  C08F220/06 ,  C09J141/00 ,  C09J133/10 ,  C09J133/08 ,  C08F293/00 ,  C09J133/02

    CPC分类号： C09J141/00 ,  C08F293/00 ,  C08F2438/03 ,  C09J133/02 ,  C09J133/08 ,  C09J133/10

    摘要： The invention relates to a process for preparing pressure-sensitive adhesives (PSAs) which have high molar masses in combination with a narrow molar mass distribution, and also to PSAs, especially polyacrylate-based PSAs, prepared accordingly. It has been found that, surprisingly, polymers with high molar masses and a narrow molar mass distribution, more particularly polyacrylates with high molar masses and a narrow molar mass distribution, can be prepared outstandingly in particular by means of RAFT processes in the presence of a diradical initiator which undergoes thermal cyclization to form a diradical, these polymers being suitable for use as high-shear-strength PSAs.

    摘要翻译： 本发明涉及一种制备具有高摩尔质量并且结合窄摩尔质量分布的压敏粘合剂（PSA）的方法，以及相应制备的PSA，特别是基于聚丙烯酸酯的PSA。 已经发现令人惊奇的是，具有高摩尔质量和较低摩尔质量分布的聚合物，更特别是具有高摩尔质量和较窄摩尔质量分布的聚丙烯酸酯，可以特别通过RAFT法在 经历热环化以形成双向的双基引发剂，这些聚合物适合用作高剪切强度的PSA。

    COMPOSTABLE HOT MELT ADHESIVE
    8.
    发明申请
    COMPOSTABLE HOT MELT ADHESIVE 审中-公开

    公开(公告)号：US20200079981A1

    公开(公告)日：2020-03-12

    申请号：US16562748

    申请日：2019-09-06

    申请人： BOSTIK, INC.

    发明人： Monina D. Kanderski ,  Michael D. VITRANO ,  David P. KEULER ,  Deepa PUTHANPARAMBIL ,  Jacqueline M. LAMBERT ,  Brian J. MORROW

    IPC分类号： C09J167/04 ,  C09J141/00 ,  B65D6/00 ,  C09J5/06

    摘要： A hot melt adhesive comprises a polylactide homopolymer or copolymer, such as polylactic acid; sulfonated copolyester; and at least one plasticizer, and is compostable. The plasticizer may be a solid plasticizer, such as a benzoate, and a second plasticizer may also be used. The adhesive is suitable for use in a variety of applications, such as case and carton applications, use with burlap or other compostable substrates for tree bulbs or plant seeds, and use with other compostable films, and is especially appropriate for dual-walled paperboard beverage cups. The adhesive demonstrates good bond performance comparable to non-compostable adhesives over a range of temperatures, reflective of the temperatures of hot and cold beverages.