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    • 82. 发明申请
    • PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, AND IMAGE DISPLAY
    • 用于光学薄膜的压敏粘合层,压敏粘合光学膜和图像显示
    • US20120213991A1
    • 2012-08-23
    • US13503282
    • 2010-09-01
    • Kunihiro InuiToshitsugu HosokawaTakaaki IshiiMasayuki Satake
    • Kunihiro InuiToshitsugu HosokawaTakaaki IshiiMasayuki Satake
    • C09J7/02B32B7/12C09J133/12B05D5/10
    • C09J7/10C09J2203/318C09J2433/00G02F1/133528G02F2202/28Y10T428/28
    • A pressure-sensitive adhesive layer for an optical film of the invention which is formed by applying an aqueous dispersion pressure-sensitive adhesive include an aqueous dispersion containing a base polymer dispersed in water, and then drying the applied aqueous dispersion pressure-sensitive adhesive, wherein the aqueous dispersion comprises a product obtained by polymerizing a monomer or monomers in water in the presence of a surfactant and a radical polymerization initiator, and the content of the surfactant is from 0.3 to 5 parts by weight based on 100 parts by weight of the monomer or monomers, when the pressure-sensitive adhesive layer is allowed to stand in water at 23° C. for one week and to separate into a water-soluble component and a water-insoluble component, the content of the water-insoluble component in the pressure-sensitive adhesive layer is from 95 to 99% by weight, and the content of the surfactant in the water-soluble component is 50% by weight or less based on the amount of the water-soluble component. The pressure-sensitive adhesive layer for an optical film has high durability so that foaming and peeling can be suppressed even under high temperature or high humidity environment.
    • 通过涂布水性分散体粘合剂形成的本发明的光学膜用粘合剂层包括含有分散在水中的基础聚合物的水性分散体,然后干燥所施加的水性分散体粘合剂,其中 水性分散体包含通过在表面活性剂和自由基聚合引发剂的存在下在水中聚合单体或单体获得的产物,并且表面活性剂的含量相对于100重量份的单体为0.3〜5重量份 或单体,当将粘合剂层在23℃的水中静置一周并分离成水溶性组分和水不溶性组分时,水不溶性组分的含量在 压敏粘合剂层的含量为95〜99重量%,水溶性成分中的表面活性剂的含量为50重量%以下 水溶性成分的量。 用于光学膜的压敏粘合剂层具有高耐久性,使得即使在高温或高湿度环境下也可以抑制发泡和剥离。