发明名称 |
AROMATIC DIAMINES WITH A PHOTOREACTIVE AROMATIC SIDE GROUP, POLYAMIC ACID PHOTO-ALIGNMENT LAYERS WITH THEM AND METHOD FOR PREPARING LIQUID CRYSTAL CELLS |
摘要 |
The present invention relates to photo-alignment layers from polyamic acid with a photoreactive aromatic side group. More specifically, the present invention relates to novel polyamic acid photo-alignment layers prepared by the solution polymerization of acid dianhydrides which comprises alicyclic acid dianhydrides at certain ratio or more and aromatic diamines which comprises aromatic diamines with a photoreactive aromatic side group at certain ratio or more and the preparation method thereof, and the preparation method of aromatic diamines with novel aromatic side group. Said polyamic acid photo-alignment layers provide excellent heat- resistance, surface hardness, transparency and liquid crystal alignment property for polarized UV light.
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申请公布号 |
WO2008153286(A3) |
申请公布日期 |
2009.01.29 |
申请号 |
WO2008KR03154 |
申请日期 |
2008.06.05 |
申请人 |
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY;YI, MI HYE;AHN, TAEK;PARK, HEE JIN |
发明人 |
YI, MI HYE;AHN, TAEK;PARK, HEE JIN |
分类号 |
C07C211/50 |
主分类号 |
C07C211/50 |
代理机构 |
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