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. 16, 2014
Filed:
Jun. 03, 2009
Byoung-ii Kang, Daejeon, KR;
Chang-hun Han, Daejeon, KR;
Chan-hong Lee, Daejeon, KR;
Dae-woo Lee, Busan, KR;
Jae-bum Seo, Yeosu-si, KR;
Sang-seop Kim, Seoul, KR;
Byoung-II Kang, Daejeon, KR;
Chang-Hun Han, Daejeon, KR;
Chan-Hong Lee, Daejeon, KR;
Dae-Woo Lee, Busan, KR;
Jae-Bum Seo, Yeosu-si, KR;
Sang-Seop Kim, Seoul, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention provides an optical film and s retardation film characterized in that each of them includes: an acrylic resin; and 20-65 parts by weight of at least two graft copolymers containing a conjugated diene-based rubber, based on 100 parts by weight of the acrylic resin, wherein at least two of the graft copolymers have different particle sizes. The present invention also provides a production method therefore.