Title:
ACRYLIC COPOLYMER, AND OPTICAL FILM CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2011/162499
Kind Code:
A2
Abstract:
The present invention relates to a heat resistant acrylic copolymer with high strength, and an optical film containing the same, and more specifically, to a polymerized acrylic copolymer comprising: 1) an acryl (meth)acrylate-based monomer except a tert-butyl (meth)acrylate-based monomer; 2) a (meth)acrylate-based monomer containing an aliphatic ring and/or an aromatic ring; and 3) a tert-butyl (meth)acrylate-based monomer. The acrylic copolymer according to the present invention shows excellent heat resistance while maintaining transparency. In addition, the optical film containing a compounding resin containing the acrylic copolymer shows excellent transparency, heat resistance, excellent processability, adhesion, phase difference characteristics and durability.
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Inventors:
KANG BYUNG-IL (KR)
HAN CHANG-HUN (KR)
HAN CHANG-HUN (KR)
Application Number:
PCT/KR2011/004341
Publication Date:
December 29, 2011
Filing Date:
June 14, 2011
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
KANG BYUNG-IL (KR)
HAN CHANG-HUN (KR)
KANG BYUNG-IL (KR)
HAN CHANG-HUN (KR)
International Classes:
C08F220/18; C08J5/18; C08L33/06; G02B5/30
Foreign References:
| US7241404B2 | 2007-07-10 | |||
| US6136449A | 2000-10-24 | |||
| KR20080050398A | 2008-06-05 | |||
| KR20070006928A | 2007-01-11 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
특허법인 씨엔에스 (KR)
특허법인 씨엔에스 (KR)
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Claims: