Optical film and method for producing the same, polarizing plate, and image display device
US-2019271885-A1 · Sep 5, 2019 · US
US11078180B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11078180-B2 |
| Application number | US-202016803896-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2020 |
| Priority date | Aug 30, 2017 |
| Publication date | Aug 3, 2021 |
| Grant date | Aug 3, 2021 |
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According to the present invention, a cured product obtained by curing a curable composition including a compound represented by General Formula 1, in which a birefringence Δn (587 nm) is 0.00≤Δn (587 nm)≤0.01, is provided, and this cured product is suitable for manufacturing an optical member. Pol 1 - Sp 1 - L 1 -Ar- L 2 - Sp 2 - Pol 2 (General Formula 1) In formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. In formula, Z 1 and Z 2 each represent a hydrogen atom, a methyl group, and the like; A 1 and A 2 each represent —S— and the like; X represents C(Rz) 2 and the like (where Rz is a substituent, and two Rz's may form a ring); L 1 and L 2 each represent a single bond, —O—, —OC(═O)—, —OC(═O)O—, —OC(═O)NH—, and the like; Sp 1 and Sp 2 each represent a single bond or a divalent linking group; Pol 1 and Pol 2 each represent a hydrogen atom or a polymerizable group; and a compound represented by General Formula 1 has at least one polymerizable group.
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What is claimed is: 1. A cured product obtained by curing a curable composition including a compound represented by General Formula 1, wherein a birefringence Δn at a wavelength of 587 nm is 0.00≤Δn≤0.01, Pol 1 - Sp 1 - L 1 -Ar- L 2 - Sp 2 - Pol 2 (General Formula 1) in formula, Ar is an aromatic ring group represented by General Formula 2-2, and in formula Z 1 and Z 2 each independently represent a hydrogen atom, a methyl group, or an ethyl group A 1 and A 2 each independently represent —S—, X represents C to which two cyano groups are bonded, C to which a cyano group and an alkoxy carbonyl group are bonded, or a ring represented by the following formula; wherein the ring represented by the above formula may be substituted by one or two alkyl groups having 1 to 6 carbon atoms and * represents a bonding position, L 1 and L 2 each independently represent —O—, —OC(═O)—, —C(═O)—, —OC(═O)O—, —OC(═O)NH—, or —NHC(═O)O—, Sp 1 and Sp 2 each independently represent a linking group selected from the group consisting of a linear alkylene group which has 2 to 30 carbon atoms and may be substituted with a methyl group or a linear alkylene group which has 1 to 30 carbon atoms and may be substituted with a methyl group and in which one —CH 2 — or two or more non-adjacent —CH 2 —'s are substituted by —O—, —S—, —OC(═O)—, —C(═O)O—, —OC(═O)O—, —NHC(═O)—, —C(═O)NH—, —OC(═O)NH—, or —NHC(═O)O, and Pol 1 and Pol 2 each independently represent a (meth)acryloyloxy group. 2. The cured product according to claim 1 , wherein L 1 and L 2 are all —O—, —OC(═O)—, —OC(═O)O—, or O—C(═O)NH—. 3. The cured product according to claim 2 , wherein L 1 and L 2 are all —O—. 4. A lens comprising the cured product according to claim 1 . 5. A compound represented by General Formula 1, Pol 1 - Sp 1 - L 1 -Ar- L 2 - Sp 2 - Pol 2 (General Formula 1) in formula, Ar is an aromatic ring group represented by General Formula 2-2, and in formula, Z 1 and Z 2 each independently represent a hydrogen atom, a methyl group, or an ethyl group A 1 and A 2 each independently represent —S—, X represents C to which two cyano groups are bonded, C to which a cyano group and an alkoxy carbonyl group are bonded, or a ring represented by the following formula; wherein the ring represented by the above formula may be substituted by one or two alkyl groups having 1 to 6 carbon atoms and * represents a bonding position, L 1 and L 2 each independently represent —O—, —OC(═O)—, —C(═O)O—, —OC(═O)O—, —OC(═O)NH—, or —NHC(═O)O—, Sp 1 and Sp 2 each represent a linking group selected from the group consisting of a linear alkylene group which has 2 to 30 carbon atoms and may be substituted with a methyl group or a linear alkylene group which has 1 to 30 carbon atoms and may be substituted with a methyl group and in which one —CH 2 — or two or more non-adjacent —CH 2 —'s are substituted by —O—, —S—, —OC(═O)—, —C(═O)O—, —OC(═O)O—, —NHC(═O)—, —C(═O)NH—, —OC(═O)NH—, or —NHC(═O)O, and Pol 1 and Pol 2 each independently represent a (meth)acryloyloxy group. 6. The compound according to claim 5 , wherein L 1 and L 2 are all —O—, —OC(═O)—, —OC(═O)O—, or O—C(═O)NH—. 7. The compound according to claim 6 , wherein L 1 and L 2 are all —O—. 8. The compound according to claim 5 , which is represented by any one of the following formulae: 9. A curable composition comprising: the compound according to claim 5 ; and a polyfunctional (meth)acrylate monomer having three or more (meth)acryloyl groups in a molecule. 10. A curable composition comprising: the compound according to claim 6 ; and a polyfunctional (meth)acrylate monomer having three or more (meth)acryloyl groups in a molecule. 11. A curable composition comprising: the compound according to claim 8 ; and a polyfunctional (meth)acrylate monomer having three or more (meth)acryloyl groups in a molecule. 12. The cured product according to claim 1 , wherein X represents any one of the following formulae; wherein * represents a bonding position of the C, and Sp 1 and Sp 2 each represent a linking group selected from the following formulae; wherein ##represents a position bonding to L 1 or L 2 and #represents a position bonding to Pol 1 or Pol 2 . 13. The cured product according to claim 1 , wherein the compound represented by General Formula 1 is represented by any one of the following formulae 14. The cured product according to claim 1 , wherein the compound represented by General Formula 1 is represented by any one of the following formulae 15. The compound according to claim 5 , wherein X represents any one of the following formulae; in the formulae * represents a bonding position, and Sp 1 and Sp 2 each represent a linking group selected from the following formulae; wherein ##represents a position bonding to L 1 or L 2 and #represents a position bonding to Pol 1 or Pol 2 . 16. The compound according to claim 5 , which is represented by any one of the following formulae
directly linked by a ring-member-to-ring-member bond · CPC title
Lenses · CPC title
containing no aromatic rings in the alcohol moiety · CPC title
directly linked by a ring-member-to-ring-member bond · CPC title
having the hetero atoms in positions 1 and 3, e.g. cyclic dithiocarbonates · CPC title
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