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    • 2. 发明授权
    • Heat-activated adhesive tape having an acrylic foam-like backing
    • 具有丙烯酸泡沫状背衬的热活化胶带
    • US06841234B2
    • 2005-01-11
    • US09920182
    • 2001-08-01
    • Ramesh LhilaKwang-Yol ParkKaila DelpozzoJian Ling Ding
    • Ramesh LhilaKwang-Yol ParkKaila DelpozzoJian Ling Ding
    • C09J7/02B32B7/12
    • C09J7/26C09J2201/128C09J2201/606C09J2201/61C09J2433/006C09J2477/003Y10T428/249982Y10T428/249983Y10T428/249984Y10T428/249985Y10T428/28Y10T428/2817Y10T428/2878Y10T428/2896
    • Heat-activated adhesive tape has a backing comprising 88-92% acrylic polymer containing: 35-45% of a first alkyl acrylate monomer with alkyl groups containing 4 to 12 carbon atoms, 30-40% of a second alkyl acrylate monomer with alkyl groups containing 4 to 12 carbon atoms, 6-10% a first monoethylenically unsaturated polar copolymerizable monomer, 1-2% a second monoethylenically unsaturated polar copolymerizable monomer, 0.3-0.5% photoinitiator, 1-2% filler, 0.05-0.07% crosslinker/chain extender, and 8-12% hollow glass microspheres; and heat-activated adhesive layer on at least one side. A pressure-sensitive adhesive may be on the other side. A method for preparing the adhesive tape involves partially polymerizing an oligomer, forming a coating composition, coating the composition onto a heat-activated adhesive disposed on a liner with a second liner, which may have a heat-activated adhesive, contiguously covering the first liner, and polymerizing the composition on the liners between two banks of ultraviolet light while cooling to form a tape.
    • 热活化胶带具有背衬,其包含88-92%的丙烯酸聚合物,其含有:含有含有4至12个碳原子的烷基的第一丙烯酸烷基酯单体的35-45%,具有烷基的第二烷基丙烯酸酯单体的30-40% 含有4至12个碳原子,6-10%的第一单烯属不饱和极性可共聚单体,1-2%第二单烯属不饱和极性可共聚单体,0.3-0.5%光引发剂,1-2%填料,0.05-0.07%交联剂/链 和8-12%的中空玻璃微球; 和至少一侧的热活化粘合剂层。 压敏粘合剂可以在另一侧。 制备粘合带的方法包括部分聚合低聚物,形成涂料组合物,将该组合物涂布到设置在具有第二衬垫的衬里上的热活化粘合剂上,该第二衬垫可具有热活化粘合剂,其邻接地覆盖第一衬垫 并且在冷却时将组合物聚合在两组紫外线之间的衬垫上以形成带。