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    • 33. 发明申请
    • SELF-STICK FOAM ADHESIVE
    • 自粘泡沫粘合剂
    • WO2013019492A1
    • 2013-02-07
    • PCT/US2012/048066
    • 2012-07-25
    • 3M INNOVATIVE PROPERTIES COMPANYTRASER, SteffenFORSTER, Jan D.
    • TRASER, SteffenFORSTER, Jan D.
    • B32B5/20C09J5/08C09J133/00
    • B32B5/18C08F220/18C09J5/08C09J7/385C09J11/04C09J11/06C09J133/08C09J133/10C09J133/14C09J2400/24Y10T156/10Y10T428/1405Y10T428/249971C08F2220/1858C08F220/06C08F226/06C08F220/58C08F2222/1013
    • The present invention relates to a method of making a self-stick foam adhesive, comprising a. a crosslinked (meth)acrylate polymer comprising repeating units derivable from a monomer composition comprising iv. 55 to 97.4 wt. % of one or more alkyl (meth)acrylate monomers, the alkyl groups of which comprise from 4 to 14 carbon atoms v. 2.5 to 40 wt. % of one or more ethylenically unsaturated monomers comprising a nitrogen- or oxygen containing heterocyclic ring vi. 0.1 to 5 wt. % of one or more polar comonomers b. 1 to 60 parts by weight of one or more hydrogenated resin tackifier per 100 parts by weight of the cross-linked (meth)acrylate polymer and c. 1 to 20 parts by weight microspheres per 100 parts by weight of the cross-linked (meth)acrylate polymer, the method comprising polymerizing monomer components of the monomer composition and wherein at least part of the polymerization is carried in the presence of crosslinking agent, the total amount of crosslinking agent used in the polymerization being between 0.01 and 2 parts by weight per 100 parts by weight of the monomer composition, 1 to 60 parts of one or more hydrogenated resin tackifier per 100 parts by weight of the monomer composition and 1 to 20 parts microspheres per 100 parts of the monomer composition and wherein the polymerization is initiated by radiation substantially in the absence of solvent. The present invention also relates to a self-stick foam adhesive obtainable by such method.
    • 本发明涉及一种制造自粘泡沫粘合剂的方法,其包括a。 包含可衍生自单体组合物的重复单元的交联(甲基)丙烯酸酯聚合物,其包含iv。 55至97.4wt。 %的一种或多种(甲基)丙烯酸烷基酯单体,其烷基包含4至14个碳原子,2.5至40wt。 %的一种或多种包含含氮或含氧杂环的烯属不饱和单体vi。 0.1〜5重量% %的一种或多种极性共聚单体b。 每100重量份交联的(甲基)丙烯酸酯聚合物中,1至60重量份的一种或多种氢化树脂增粘剂和c。 每100重量份交联的(甲基)丙烯酸酯聚合物为1〜20重量份的微球,所述方法包括聚合单体组合物的单体组分,并且其中至少部分聚合在交联剂存在下进行, 在聚合中使用的交联剂的总量为每100重量份单体组合物0.01至2重量份,每100重量份单体组合物1至60个一个或多个氢化树脂增粘剂和1 至每100份单体组合物至20份微球,并且其中基本上在不存在溶剂的情况下通过辐射引发聚合。 本发明还涉及通过这种方法获得的自粘泡沫粘合剂。