MONOMER, POLYMER, COMPENSATION FILM, OPTICAL FILM, AND DISPLAY DEVICE
申请人:SAMSUNG ELECTRONICS CO., LTD.
公开号:US20170059755A1
公开(公告)日:2017-03-02
A monomer represented by Chemical Formula 1-1
wherein in Chemical Formula 1-1, Z, L
1
, L
2
, R
1
to R
6
, n, m, p, and a to f are the same as defined in the detailed description.
POLYIMIDE PRECURSOR COMPOSITION, METHOD FOR PREPARING POLYIMIDE, POLYIMIDE PREPARED BY USING THE METHOD, AND FILM INCLUDING THE POLYIMIDE
申请人:CHO, Eun Seog
公开号:US20120157652A1
公开(公告)日:2012-06-21
A polyimide precursor composition includes a polyamic acid including a repeating unit represented by Chemical Formula 1 and diisocyanate represented by Chemical Formula 2.
OCN-A
2
-NCO Chemical Formula 2
The diisocyanate represented by Chemical Formula 2 is included in an amount of about 0.01 moles to about 10 moles based on 100 moles of the repeating unit represented by Chemical Formula 1 in the polyamic acid.
OPTICAL FILM AND METHOD OF PREPARING OPTICAL FILM
申请人:Samsung Electronics Co., Ltd.
公开号:US20140349098A1
公开(公告)日:2014-11-27
A method of preparing an optical film, preparing a coating composition including an amic acid-containing polymer represented by Chemical Formula 1 and at least one polymerization aid selected from an alkyl phosphite, an aryl phosphite, an alkyl phosphate, and an aryl phosphate; providing the coating composition on a substrate to form a coating layer; and applying heat to the coating layer to prepare a cured film:
wherein, in Chemical Formula 1,
are the same or different in each repeating unit, and are each independently at least one selected from an aromatic organic group, an aliphatic organic group, and an alicyclic organic group, and 0≦x≦1.
COMPOSITION, POLYMER FILM, AND DISPLAY DEVICE
申请人:Samsung Electronics Co., Ltd.
公开号:US20150025200A1
公开(公告)日:2015-01-22
A composition including a diamine compound and a dianhydride compound, wherein the diamine compound includes a first diamine compound represented by Chemical Formula 1,
wherein, in Chemical Formula 1, T
1
to T
8
and L
1
to L
8
are the same as defined in the detailed description.
COMPOSITION FOR PREPARING POLYIMIDE, POLYIMIDE, AND ARTICLE INCLUDING SAME
申请人:SAMSUNG ELECTRONICS CO., LTD.
公开号:US20150147554A1
公开(公告)日:2015-05-28
A composition for preparing a polyimide including a tetracarboxylic dianhydride mixture including a tetracarboxylic dianhydride represented by Chemical Formula 1A, Chemical Formula 1B, or a combination thereof, a tetracarboxylic dianhydride represented by Chemical Formula 2, and a diamine represented by Chemical Formula 3:
NH
2
—R
1
—NH
2
Chemical Formula 3
wherein in Chemical Formulae 1A, 1B, 2 and 3, definitions of groups and substituents are described in the specification.