Invention Grant
- Patent Title: Method of preparing resin composition for optical film by using continuous bulk polymerization and methods of preparing optical film and polarizing plate using the resin composition
- Patent Title (中): 通过连续本体聚合制备光学膜用树脂组合物的方法和使用该树脂组合物制备光学膜和偏振片的方法
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Application No.: US14005507Application Date: 2012-04-05
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Publication No.: US09346225B2Publication Date: 2016-05-24
- Inventor: Jae-Bum Seo , Chang-Hun Han , Dae-Woo Lee , Jung-Tae Park , Eun-Jung Choi , Byoung-Il Kang , Joon-Sik Kim , Nam-Jeong Lee , Sang-Min Kwak , Joong-Hoon Lee
- Applicant: Jae-Bum Seo , Chang-Hun Han , Dae-Woo Lee , Jung-Tae Park , Eun-Jung Choi , Byoung-Il Kang , Joon-Sik Kim , Nam-Jeong Lee , Sang-Min Kwak , Joong-Hoon Lee
- Applicant Address: KR Seoul
- Assignee: LG CHEM, LTD.
- Current Assignee: LG CHEM, LTD.
- Current Assignee Address: KR Seoul
- Agency: Dentons US LLP
- Priority: KR10-2011-0034442 20110413; KR10-2011-0093977 20110919
- International Application: PCT/KR2012/002552 WO 20120405
- International Announcement: WO2012/141453 WO 20121018
- Main IPC: C08F6/00
- IPC: C08F6/00 ; C08F8/48 ; C08F220/06 ; C08F220/30 ; C08F220/14 ; B29D11/00 ; G02B1/04 ; C08F2/02
Abstract:
Provided is a method of preparing a resin composition for an optical film. The method includes forming a four-component copolymer by reacting an alkyl(meth)acrylate-based monomer, an acrylate-based monomer containing a benzene ring, and a (meth)acrylic acid monomer by using a continuous bulk polymerization method; and forming a resin composition for an optical film by removing unreacted monomer and solvent from a reaction product in a devolatilizer.
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