Liquid crystal compound, optical element, polarizing plate, image display apparatus, and optical recording material
AssigneeNitto Denko Corporation
InventorsSadahiro Nakanishi, Mitsuru Ueda
Life of this patent
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Abstract
Provided are a liquid crystal compound which can exhibit liquid-crystalline phase even at low temperatures, is excellent in uniform application performance and compatibility with another component, and suppresses inclusion of a polymeric component other than the object component, and an optical element having little defects in appearance, a polarizing plate, an image display apparatus, and an optical recording material using the liquid crystal compound. The liquid crystal compound of the present invention includes two or more chemical structures Q each represented by a general formula (1).
Claims11
A liquid crystal compound, comprising two or more chemical structures Q each represented by a general formula (1):
- where, in the general formula (1):
- X represents one of —CN and —COCH3;
- and R1 and R2 each independently represent any one of —H, a chemical structure represented by a general formula (2), and a chemical structure represented by any one of general formulae (3a) to (3f):
- where, in the general formula (2):
- J represents one of —H and —CH3;
- A represents a single bond or an alkylene group having 2 to 12 carbon atoms, in which one —CH2— or two or more nonadjacent —CH2—'s present in the alkylene group may be substituted with —O—;
- Y represents any one of —O—, —COO—, —OCO—, and —OCOO—;
- and L represents a chemical structure represented by any one of general formulae (4a) to (4g),
- where, in the general formulae (3a) to (3f):
- Ac represents a (meth)acryloyl group;
- and A2 represents an alkylene group having 2 to 12 carbon atoms:
- [Chemical Formulae 4]
- —Cy—Cy (4a)
- —Cy—Cy—Cy (4b)
- —Cy—Z—Cy (4c)
- —Cy—Z—Cy—Z—Cy (4d)
- —Cy—C≡C—Cy (4e )
- —Cy—C≡C—Cy—C≡C—Cy (4f)
- —Cy—Z—Cy—C≡C—Cy (4g )
- where, in the general formulae (4a) to (4g):
- Z represents any one of —COO—, —OCO—, —CONH—, CON(alkyl)-, and —CH═N—;
- and Cy's each independently represent any one of a phenyl ring, a naphthyl ring, a biphenyl ring, and a cyclohexyl ring which may each have at least one kind of substituent selected from F, CN, an alkoxy group, and an alkyl group.
Dependencies are inferred from the claim text.