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:
Dec. 09, 2008
Filed:
Apr. 20, 2005
Se-ra Kim, Daejeon, KR;
Suk-ky Chang, Daejeon, KR;
Hyun-ju Cho, Gimhae-si, KR;
Jae-gwan Lee, Daejeon, KR;
In-cheon Han, Seoul, KR;
Hye-ran Seong, Seoul, KR;
Se-ra Kim, Daejeon, KR;
Suk-ky Chang, Daejeon, KR;
Hyun-ju Cho, Gimhae-si, KR;
Jae-gwan Lee, Daejeon, KR;
In-cheon Han, Seoul, KR;
Hye-ran Seong, Seoul, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention provides an acrylic pressure-sensitive adhesive composition for a polarizing film comprising a) 100 parts by weight of a (meth)acrylic copolymer having a high molecular weight, which is copolymerized from a (meth)acrylic acid ester monomer and a vinylic and/or an acrylic monomer having a functional group capable of crosslinking with a multifunctional crosslinking agent and has a weight-average molecular weight of at least 1,000,000; b) 5-20 parts by weight of a (meth)acrylic copolymer having a low molecular weight, which comprises the same monomer of the main chain of a) the (meth)acrylic copolymer having a high molecular weight, has a weight-average molecular weight of 2,000-30,000 and comprises 0.01-1 monomer, per one molecule of the copolymer on average, having a functional group capable of reacting with the crosslinking agent of c); and c) 0.01-10 parts by weight of a multifunctional crosslinking agent.