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US 10,351,643 B2Granted
Polymerizable compounds, compositions, polymers, optically anisotropic articles, liquid crystal display devices and organic EL devices
AssigneeDIC Corporation
InventorsHiroshi Hasebe, Yoshio Aoki, Kunihiko Kotani, Akihiro Koiso, Hidetoshi Nakata
Life of this patent
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Abstract
An object of the invention is to provide polymerizable compounds having excellent optical characteristics and suited as materials for optically anisotropic articles, compositions containing the polymerizable compounds, polymers obtained by polymerizing the polymerizable compounds, optically anisotropic articles formed of the polymers, and liquid crystal display devices including the optically anisotropic articles.
Claims10
A polymerizable compound represented by the general formula selected from the group consisting of (1-1), (1-2) and (1-3):
- wherein in the formulae (1-1), (1-2) and (1-3), P is a polymerizable functional group, Sp is a spacer group or a single bond,
- A1, A2, A3 and A4 each independently represent a divalent alicyclic hydrocarbon group or aromatic hydrocarbon group,
- X1, X2, X3 and X4 each independently represent a divalent bonding group or a single bond,
- R1 is an alkyl or alkoxy group having 1 to 12 carbon atoms, or “*-Sp-P” in which * indicates A4 or A3,
- m and n are each independently an integer of 0 to 4 wherein m+n is an integer of 2 or greater,
- T1 and T2 each independently represent —S—, —O—, —NR2—, —CH2—, —NH—, —C(═O)—, —S(═O)— or —C(═S)—,
- R2 is a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a nitro group or a hydroxyl group,
- R3 and R4 each independently represent a monovalent substituent or form a ring through Y which connects R3 and R4 together wherein when such a ring is formed, R3 and R4 each independently represent a group selected from the group consisting of —O—, —S—, —SO—, —SO2—, —NR— wherein R is a hydrogen atom or a monovalent substituent, ═N—, ═N(+)R— wherein R of ═N(+)R— is a hydrogen atom or a monovalent substituent, —C(═O)—, —C(═S)— and ═CR— wherein R of ═CR— is a hydrogen atom or a monovalent substituent, and
- Y represents 2 to 4 atoms selected from the group consisting of carbon atoms and Group XIV to Group XVI nonmetallic atoms, and in combination with R3—C—R4 in the formula forms a 5- to 7-membered ring which may be substituted with a monovalent substituent in place of any hydrogen atom bonded to the 5- to 7-membered ring, except when T1 and R3, and T2 and R4 are each the same as each other and when T1 and R4, and T2 and R3 are each the same as each other.
6 more elements
Dependencies are inferred from the claim text.