Title:
環状オレフィン及び極性ビニルオレフィン系の共重合体の製造方法、その方法によって製造された共重合体及び前記共重合体を含む光学異方性フィルム
Document Type and Number:
Japanese Patent JP2008519882
Kind Code:
A
Abstract:
A method of copolymerizing cyclic olefins and polar vinyl olefins, a copolymer produced by the method, and an optical anisotropic film including the copolymer are provided. According to the copolymerization method, a cyclic olefin and a polar vinyl olefin can be effectively copolymerized using a catalyst system composed of a compound containing a group 13 element and a radical initiator. The resulting copolymer is transparent, and has high adhesion, thermal stability, optical anisotropy and strength, and a low dielectric constant. The optical film including the copolymer can be used as a plastic lens, a polarizer protective film, an adhesive film, and a compensation film, and in a LCD display.
Inventors:
Sun-Chul Yeong
Sun-Hoo Chun
Haeong Kim
Taesung Rim
Jun-Min Lee
Sun-Hoo Chun
Haeong Kim
Taesung Rim
Jun-Min Lee
Application Number:
JP2007541100A
Publication Date:
June 12, 2008
Filing Date:
November 10, 2005
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
C08F232/00; C08F4/04; C08F4/12; C08F4/54; C08F232/08; C08J5/18
Domestic Patent References:
| JP2004067985A | 2004-03-04 | |||
| JP2003327630A | 2003-11-19 | |||
| JP2004277473A | 2004-10-07 | |||
| JP2004161836A | 2004-06-10 | |||
| JP2006508403A | 2006-03-09 |
Attorney, Agent or Firm:
Sumio Tanai
Shinya Mitsuhiro
Shinya Mitsuhiro