ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR POLARIZING PLATE, CONTAINING A PHOTO-INITIATOR GROUP

申请公布号：EP2087060(A1)

申请号：EP20070833736

申请日期：2007.10.31

申请公布日期：2009.08.12

申请人：

LG CHEM, LTD.

发明人：KIM, NOMA;HA, JEONG MIN;LEE, MIN KI;CHANG, SUK KY

分类号：C09J133/06;C08F220/18;C08L33/08

主分类号：C09J133/06

摘要：<p>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.</p>

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