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1. 发明申请

US20020028326A1 Heat-activated adhesive tape having an acrylic foam-like backing 失效
标题翻译：具有丙烯酸泡沫状背衬的热活化胶带
公开(公告)号：US20020028326A1
公开(公告)日：2002-03-07
申请号：US09920182
申请日：2001-08-01
申请人： Scapa Tapes North America Inc.
发明人： Ramesh Lhila , Kwang-yol Park , Kaila Delpozzo , Jian Ling Ding
IPC分类号： B32B007/12
CPC分类号： C09J7/26 , C09J2201/128 , C09J2201/606 , C09J2201/61 , C09J2433/006 , C09J2477/003 , Y10T428/249982 , Y10T428/249983 , Y10T428/249984 , Y10T428/249985 , Y10T428/28 , Y10T428/2817 , Y10T428/2878 , Y10T428/2896
摘要： 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.
摘要翻译：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。

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