The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2012
Filed:
Nov. 17, 2006
NO MA Kim, Daejeon, KR;
Jeong Min Ha, Daejeon, KR;
IN Cheon Han, Seoul, KR;
Seung Joon Park, Daejeon, KR;
Woo Ha Kim, Gangwon-do, KR;
Suk KY Chang, Daejeon, KR;
No Ma Kim, Daejeon, KR;
Jeong Min Ha, Daejeon, KR;
In Cheon Han, Seoul, KR;
Seung Joon Park, Daejeon, KR;
Woo Ha Kim, Gangwon-do, KR;
Suk Ky Chang, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to an acrylic pressure sensitive adhesive composition comprising (meth)acrylic copolymers including alkyl(meth)acrylic acid ester monomer having 2˜14 carbon atoms of alkyl group, characterized in that the gel fraction is 10˜55%, the swelling ratio is 30˜110, the weight average molecular weight of sol eluted from the final adhesive by ethyl acetate is at least 800,000, comprising low molecular weight molecule having the maximum 100,000 of weight average molecular weight by 10 ˜40 wt % of the total sol component; and the above composition show excellent durability under a high temperature and/or humidity condition, and can improve the light leakage phenomenon and provide excellent operability at the time of manufacturing polarizer by effectively providing high modulus and stress release property.