[EN] PHOTOALIGNING MATERIALS<br/>[FR] MATÉRIAUX DE PHOTOALIGNEMENT
申请人:ROLIC AG
公开号:WO2013050121A1
公开(公告)日:2013-04-11
The present invention relates to polymer, homo- or copolymer or oligomer for the photoalignment of liquid crystals, especially for the planar orientation of liquid crystals, comprising a main chain and a side chain, wherein the side chain and/or main chain comprises a polar group, compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).
To provide a novel diamine, and a polyimide precursor and a polyimide using it. A diamine represented by the formula (1):
wherein each of X
1
and X
5
which are independent of each other, is a single bond or the like; each of X
2
and X
4
which are independent of each other, is —CH
2
— or the like; X
3
is a C
1-6
alkylene or the like; each of Y
1
and Y
2
which are independent of each other, is a single bond or the like; R is a C
1-20
linear, branched or cyclic hydrocarbon group; and a is 0 or 1).
PHOTOCROSSLINKABLE MATERIALS COMPRISING ALICYCLIC GROUP
申请人:Eckert Jean-Francois
公开号:US20100048849A1
公开(公告)日:2010-02-25
A diamine compound of formula (I) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound.
A diamine compound of formula (I) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound.
A diamine compound of formula (I) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound.