METHOD FOR PREPARING ACRYLIC COPOLYMER RESIN FOR OPTICAL FILM AND METHOD FOR FABRICATING OPTICAL FILM USING THE SAME

WIPO Patent Application WO/2012/141422

A1

There is provided a method for preparing an acrylic copolymer resin for an optical film includes: suspension-polymerizing an acrylic monomer containing a benzene ring, an alkyl(meth)acrylate monomer, and a (meth)acrylic acid monomer to prepare a copolymer; and thermally treating the copolymer at a temperature ranging from 240℃ to 300℃. As the method for preparing an acrylic copolymer of the present invention, a resin having an effectively lowered CTE can be manufactured by inducing the formation of a glutaric anhydride structure by using suspension polymerization that facilitates adjustment of the molecular weight of a resin.

CHOI EUN-JUNG (KR)
HAN CHANG-HUN (KR)
SEO JAE-BUM (KR)
KIM BEOM-SEOK (KR)
KANG BYOUNG-IL (KR)
LEE NAM-JEONG (KR)
KIM SU-KYUNG (KR)
UM JUN-GEUN (KR)
SUNG DA-EUN (KR)
LEE JOONG-HOON (KR)

PCT/KR2012/000869

October 18, 2012

February 07, 2012

Click for automatic bibliography generation  

LG CHEMICAL LTD (KR)
CHOI EUN-JUNG (KR)
HAN CHANG-HUN (KR)
SEO JAE-BUM (KR)
KIM BEOM-SEOK (KR)
KANG BYOUNG-IL (KR)
LEE NAM-JEONG (KR)
KIM SU-KYUNG (KR)
UM JUN-GEUN (KR)
SUNG DA-EUN (KR)
LEE JOONG-HOON (KR)

C08F220/10; C08F2/18; C08J5/18; G02B1/04; G02B5/02

EP0264508B1	1991-09-11
KR20100104518A	2010-09-29
US20090275718A1	2009-11-05
US4874824A	1989-10-17

C&S PATENT AND LAW OFFICE (Seocho-Pyunghwa Building1451-34 Seocho-dong, Seocho-gu, Seoul 137-070, KR)

View/Download PDF      PDF Help

Previous Patent: DEVICE AND METHOD FOR TRANSMITTING/RECEIVING CHANNEL STATE INFORMATION IN A COMMUNICATION SYSTEM

Next Patent: SYSTEM AND METHOD FOR MEASURING MACROCELL QUALITY BY USING FEMTOCELL