Patent ID: 11874563
Assignee: ROLIC TECHNOLOGIES AG
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 2:
3. The photo-orientable material according to claim 1, wherein
ring A is unsubstituted phenylene or phenylene which is substituted with alkyl or alkoxy;
ring B is unsubstituted phenylene or phenylene which is substituted with fluorine, alkyl or alkoxy;
Y1, Y2 each independently is a single covalent bond, —CO—O—, or —O—OC—;
ring C is unsubstituted phenylene or phenylene which is substituted with alkyl or alkoxy;
wherein S2 is C4-C24alkylene; and
wherein S3 is C8-C24alkylene, and
wherein the alkylene is unsubstituted or substituted, straight-chain or branched alkylene, in which one or more —CH2— groups may be replaced by at least one linking group, alicyclic or/and aromatic group,
wherein the at least one linking group is selected from —CO—, —OO—O—, —O—CO—, —NR1—, —NR1—OO—, —CO—NR1—, —NR1—CO—O—, —O—CO—NR1—, —NR1—CO—NR1—, —CH═CH—, —C≡C—, —O—CO—O—, and —Si(CH3)2—O—Si(CH3)2—, wherein R1 represents a hydrogen atom or C1-6alkyl, with the proviso that oxygen atoms of linking groups are not directly linked to each other; and
wherein Z is —O—.