Acrylic pressure-sensitive adhesive composition for polarizing plate, containing a photo-initiator group
    4.
    发明授权
    Acrylic pressure-sensitive adhesive composition for polarizing plate, containing a photo-initiator group 有权
    含有光引发剂基团的偏光板用丙烯酸类粘合剂组合物

    公开(公告)号:US08337961B2

    公开(公告)日:2012-12-25

    申请号:US12312212

    申请日:2007-10-31

    IPC分类号: C09K19/00

    摘要: The present invention relates to an acrylic pressure-sensitive adhesive composition which comprises a (meth)acrylic copolymer comprising an alkyl(meth)acrylic acid ester monomer, in which alkyl has 2 to 14 carbon atoms, and a (meth)acrylic acid ester monomer containing a copolymerizable photo-initiator group, wherein it has a gel fraction of 10 to 55% and a swelling ratio of 30 to 110, and a sol (uncross-linked polymer) eluted in final pressure-sensitive adhesive with a solvent (ethyl acetate) has a weight average molecular weight of 600,000 or more; and a polarizing plate and a liquid crystal display device, comprising the same. The polarizing plate according to the present invention has an excellent adhesion durability under a high temperature or a high temperature and humidity condition, has an excellent low light leakage property by effectively providing stress release property, and may greatly improve productivity for polarizing plates, by using photo-curing.

    摘要翻译: 本发明涉及一种丙烯酸类压敏粘合剂组合物,其包含(甲基)丙烯酸酯单体和(甲基)丙烯酸酯单体(甲基)丙烯酸共聚物,其中烷基具有2〜14个碳原子的(甲基)丙烯酸烷基酯单体 含有共聚合的光引发剂基团,其凝胶分数为10〜55%,溶胀比为30〜110,溶剂(未交联聚合物)在溶剂(乙酸乙酯 )的重均分子量为60万以上; 以及包括该偏振板的液晶显示装置。 根据本发明的偏光板在高温或高温和高湿条件下具有优异的粘合耐久性,通过有效地提供应力释放性能具有优异的低漏光性能,并且可以通过使用可大大提高偏振片的生产率 光固化。