POLYMERIZABLE COMPOSITION COMPRISING COMPOUND HAVING MESOGENIC GROUP, AND POLYMER THEREOF

Abstract

The invention provides a polymerizable composition including a compound that has a mesogenic group and satisfying an expression represented by Expression (1): 1.0YI/n50.0, wherein YI represents a yellowness index of a material including only a compound having a mesogenic group in the polymerizable composition, and n represents a refractive index anisotropy of a material including only a compound having a mesogenic group in the polymerizable composition, with the proviso that a chiral compound having a mesogenic group is excluded in the material including only the compound having the mesogenic group. The polymerizable composition has high storage stability and is unlikely to cause an increase of the content of a polymer component when being added to a polymerizable liquid crystal composition, and is excellent in adhesiveness, is not unlikely to cause discoloration, and exhibits good coating properties and good alignment properties in preparing an optical anisotropic body.

Claims

1. A polymerizable composition comprising a compound which has a mesogenic group and satisfying an expression represented by Expression (1):
1.0YI/n50.0Expression (1) wherein YI represents a yellowness index of a material including only a compound having a mesogenic group in the polymerizable composition, and n represents a refractive index anisotropy of a material including only a compound having a mesogenic group in the polymerizable composition, with the proviso that a chiral compound having a mesogenic group is excluded in the material including only a compound having a mesogenic group.

2. The polymerizable composition according to claim 1, wherein one or more of the compound having the mesogenic group have a polymerizable group.

3. The polymerizable composition according to claim 1, wherein the total content of the compound having a mesogenic group is 5.0% by mass to 99.9% by mass based on the total amount of the polymerizable composition.

4. The polymerizable composition according to claim 1, wherein the polymerizable composition exhibits liquid crystal properties.

5. A polymer obtained by polymerizing the polymerizable composition according to claim 1.

6. An optical anisotropic body obtained by polymerizing the polymerizable composition according to claim 1.

7. A retardation film obtained by polymerizing the polymerizable composition according to claim 1.

8. A display device comprising: the optical anisotropic body according to claim 6.

9. An optical element comprising: the optical anisotropic body according to claim 6.

10. A light-emitting device comprising: the optical anisotropic body according to claim 6.

11. A printed matter comprising: the optical anisotropic body according to claim 6.

12. An optical information recording apparatus comprising: the optical anisotropic body according to claim 6.

Description

EXAMPLES

[0232] Hereinafter, the present invention will be described by Synthesis Examples, Examples, and Comparative Examples, but the present invention is not limited thereto as well. Further, parts and % are based on mass, unless otherwise specified. As the raw compounds of the compound having a mesogenic group, compounds represented by the following Formulas (A1) to (A13), Formulas (B1) to (B10), and Formulas (C1) to (C6) were used.

##STR00067## ##STR00068## ##STR00069## ##STR00070## ##STR00071## ##STR00072##

[0233] Propylene glycol 1-monomethyl ether 2-acetate (D1)

[0234] p-methoxyphenol (E1)

[0235] IRGACURE 907 (G1)

[0236] IRGACURE 651 (G2)

[0237] IRGACURE 251 (G3)

[0238] ANTHRACURE UVS-1331 (G4) Polypropylene (weight average molecular weight (MW): 1275) (H1)

[0239] <Measurement of YI/n>

[0240] The yellowness indexes of the compounds represented by Formulas (A1) to (A11), and Formulas (B1) to (B11) were measured as follows. Further, for each compound represented by Formulas (A1) to (A4), Formula (A8), Formula (A10), and Formulas (B1) to (B5), compounds that have different purification degrees were prepared and YI/n was measured on each of the compounds that have different purification degree.

[0241] A compound which is a measurement object was dissolved in a solvent so as to be 20% solution. Here, tetrahydrofuran solution was used as a solvent. The yellowness index was calculated using a spectrophotometer by putting the solution in a transparent cell having an optical path length of 1 cm.

[0242] In addition, the compound which is a measurement object was added to the host liquid crystal to prepare a liquid crystal composition. A glass cell was generated by using glass substrates in which a polyimide alignment film is attached, by combining the two glass substrates such that the substrates are parallel to the rubbing directions of the polyimide alignment films were parallel to each other. The film was obtained by being peeled off from the glass cell after injecting the liquid crystal composition to the glass cell and curing by irradiation with ultraviolet rays (illuminance of 800 mJ/cm.sup.2). Then, the refractive index anisotropy (n) was calculated by measuring the ne and no of the film using Abbe's refractometer and extrapolating the measured values.

[0243] The value of YI/n was calculated by dividing the obtained yellowness index of each compound represented by the Formula (A1) to Formula (A13), and Formula (B1) to Formula (B10) by the value of n of each compound.

Examples 1 to 30 and Comparative Examples 1 to 30

Preparation of Liquid Crystal Composition of Example 1

[0244] As the compound having a mesogenic group in the polymerizable liquid crystal composition, a material (M1) containing a proportion of 34% of the compound represented by Formula (A1), 10% of the compound represented by Formula (A2), 28% of the compound represented by Formula (B1), and 28% of the compound represented by Formula (B2) was prepared. The value of YI/n of each compound is shown in Table 1. The yellowness index of the material, that is, the material (M1) in which all the compounds having mesogenic groups in the polymerizable liquid crystal composition are combined was 2.24, and YI/n was 15.7. In addition, the yellowness index of the material (M1) was measured by dissolving the material (M1) in tetrahydrofuran solution so as to be 20% solution in the same manner as in the measurement method of the above compounds. Further, the refractive index anisotropy of the material (M1) was measured by adding the material M1 to the host liquid crystal to prepare a liquid crystal composition in the same manner as in the measurement method of the above compounds. The YI/n of the material (M1) was calculated by dividing the value obtained through measuring by the refractive index anisotropy (n) of the material (M1).

[0245] 100 parts of the material (M1), 300 parts of propylene glycol 1-monomethyl ether 2-acetate (PGEMA) (D1) as an organic solvent, 0.1 parts of p-methoxyphenol (E1), parts of IRGACURE 907 (G1), and 0.2 parts of polypropylene (weight average molecular weight (MW): 1275) (H1) were stirred for 1 hour under a condition that the stirring speed is 500 rpm and the solution temperature is 60 C. by using a stirring apparatus having a stirring propeller to obtain a liquid crystal composition of Example 1.

[0246] <Preparation of Liquid Crystal Composition of Examples 2 to 21 and Comparative Examples 1 to 21>

[0247] Material (M2) to Material (M60) containing the compounds represented by Formula (A1) to Formula (A13) and Formulas (B1) to (B10) in proportions shown in Table 1 to Table 16 were prepared in the same manner as in the preparation of the liquid crystal composition of Example 1. In addition, the value of YI and the value of YI/n of the material (M2) to Material (M60) were measured in the same manner as for the material (M1).

[0248] The liquid crystal compositions of Examples 2 to 11 and 14 to 17 and Comparative Examples 1 to 11 and 14 to 17 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the materials (M2) to (M11), (M14) to (M17), (M31) to (M41), and (M44) to (M47) instead of the material (M1) in the liquid crystal composition of Example 1.

[0249] In addition, the liquid crystal compositions of Examples 13 and 22 to 28 and Comparative Examples 13 and to 28 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the materials (M13), (M22) to (M28), (M43), and (M52) to (M58) instead of the material (M1) in the liquid crystal composition of Example 1, and further using 0.1 parts of (H1).

[0250] Further, the liquid crystal compositions of Example 12 and Comparative Example 12 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the materials (M12) and (M42) instead of the material (M1) in the liquid crystal composition of Example 1, and further adding 11.0 parts of the material (C6).

[0251] Further, the liquid crystal composition of Example 18 was obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for using the material (M18) instead of the material (M1) in the liquid crystal composition of Example 1, using 2 parts of IRGACURE 651 (G2), 2 parts of IRGACURE 251 (G3), and 1 part of ANTHRACURE UVS-1331 (G4) instead of 5 parts of IRGACURE 907 (G1), and further adding 11.0 parts of the material (C5).

[0252] Further, the liquid crystal composition of Comparative Example 18 was obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for using the material (M48) instead of the material (M1) in the liquid crystal composition of Example 1, using 0.3 parts of (H1), and further adding 11.0 parts of the material (C5).

[0253] Further, the liquid crystal compositions of Example 19 and Comparative Example 19 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the material (M19) and the material (M49) instead of the material (M1) in the liquid crystal composition of Example 1, and further adding 12.0 parts of the material (C1).

[0254] Further, the liquid crystal compositions of Example 20 and Comparative Example 20 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the material (M20) and the material (M50) instead of the material (M1) in the liquid crystal composition of Example 1, and further adding 8.0 parts of the material (C2).

[0255] Further, the liquid crystal compositions of Example 21 and Comparative Example 21 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the material (M21) and the material (M51) instead of the material (M1) in the liquid crystal composition of Example 1, and further adding 8.0 parts of the material (C3).

[0256] Further, the liquid crystal compositions of Example 29 and Comparative Example 29 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the material (M29) and the material (M59) instead of the material (M1) in the liquid crystal composition of Example 1, using 0.1 parts of (H1), and further adding 5.0 parts of the material (C4).

[0257] Further, the liquid crystal compositions of Example 30 and Comparative Example 30 were obtained in the same manner as in the preparation of the liquid crystal composition of Example 1 except for respectively using the material (M30) and the material (M60) instead of the material (M1) in the liquid crystal composition of Example 1, using 0.1 parts of (H1), and further adding 8.0 parts of the material (C3).

[0258] Hereinafter, the composition and the value of YI/n of the material M1 are shown.

TABLE-US-00001 TABLE 1 Material (M1) Material (M2) Material (M3) Material (M4) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 34.0% 0.80 4.6 34.0% 15.20 86.9 A2 10.0% 6.20 38.8 10.0% 6.20 38.8 32.0% 6.20 38.8 32.0% 6.20 38.8 B1 28.0% 0.40 3.1 28.0% 0.40 3.1 28.0% 0.40 3.1 28.0% 0.40 3.1 B2 28.0% 4.40 40.0 28.0% 4.40 40.0 12.0% 4.40 40.0 12.0% 27.80 252.7 B3 28.0% 5.50 39.3 28.0% 5.50 39.3 Material 100.0% 2.24 15.7 100.0% 7.13 50 100.0% 4.16 29.7 100.0% 6.97 49.8 (M)

TABLE-US-00002 TABLE 2 Material (M5) Material (M6) Material (M7) Material (M8) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 40.0% 0.80 4.6 40.0% 6.95 39.7 11.0% 0.80 4.6 19.0% 0.80 4.6 A2 10.0% 6.20 38.8 10.0% 21.50 134.4 19.0% 6.20 38.8 21.0% 6.20 38.8 B1 25.0% 0.40 3.1 25.0% 5.00 38.5 26.0% 0.40 3.1 20.0% 0.40 3.1 B2 25.0% 4.40 40.0 25.0% 4.40 40.0 27.0% 4.40 40.0 B3 30.0% 5.50 39.3 B4 8.5% 4.00 33.3 B5 8.5% 2.00 18.2 B8 10.0% 4.50 22.6 Material 100.0% 2.14 14.7 100.0% 7.28 49.9 100.0% 3.07 23.1 100.0% 3.63 23.5 (M)

TABLE-US-00003 TABLE 3 Material (M9) Material (M10) Material (M11) Material (M12) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 19.0% 0.80 4.6 10.0% 0.80 4.6 35.0% 0.80 4.6 56.0% 0.80 4.6 A2 21.0% 6.20 38.8 A3 40.0% 0.60 3.5 35.0% 0.60 3.5 A4 25.0% 0.20 1.1 22.0% 0.20 1.1 A5 25.0% 0.20 1.3 22.0% 0.20 1.3 A6 B1 20.0% 0.40 3.1 B3 30.0% 19.10 136.4 B6 12.5% 0.60 3.3 B7 12.5% 0.50 2.7 B8 10.0% 4.50 22.6 5.0% 4.50 22.6 Material 100.0% 7.71 49.8 100.0% 0.42 2.5 100.0% 0.85 4.8 100.0% 0.54 3.1 (M)

TABLE-US-00004 TABLE 4 Material (M13) Material (M14) Material (M15) Material (M16) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 34.0% 0.80 4.6 A3 60.0% 0.20 0.2 10.0% 0.60 3.5 50.0% 0.60 3.5 A4 43.0% 0.20 1.1 10.0% 0.20 1.1 A5 43.0% 0.20 1.3 10.0% 0.20 1.3 A6 10.0% 2.50 13.2 A7 A8 20.0% 5.60 40.0 A9 28.0% 0.40 3.3 A11 20.0% 4.00 30.8 B1 20.0% 0.40 3.1 B2 28.0% 4.40 40.0 B8 14.0% 4.50 22.6 Material 100.0% 0.80 4.7 100.0% 1.24 8.1 100.0% 1.68 11.9 100.0% 1.71 10.3 (M)

TABLE-US-00005 TABLE 5 Material (M17) Material (M18) Material (M19) Material (M20) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 22.0% 0.80 4.6 55.0% 0.80 4.6 56.0% 0.80 4.6 A2 12.0% 6.20 38.8 A3 12.0% 0.60 3.5 A4 A5 A7 A9 30.0% 0.40 3.3 8.0% 0.40 3.3 8.0% 0.40 3.3 A10 67.0% 0.20 1.0 B1 11.0% 0.40 3.1 14.0% 0.40 3.1 24.0% 0.40 3.1 B2 11.0% 4.40 40.0 B4 35.0% 4.00 33.3 B5 35.0% 2.00 18.2 Material 100.0% 2.22 19.1 100.0% 0.35 1.8 100.0% 1.76 11.3 100.0% 0.65 4.1 (M)

TABLE-US-00006 TABLE 6 Material (M21) Material (M22) Material (M23) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 42.0% 0.80 4.6 40.0% 0.80 4.6 40.0% 0.15 0.9 A3 33.0% 0.60 3.5 B1 20.0% 0.40 3.1 10.0% 0.60 4.6 B3 40.0% 5.50 39.3 50.0% 0.10 0.7 B7 25.0% 0.50 2.7 Material 100.0% 0.66 3.7 100.0% 2.60 1.7 100.0% 0.17 1.1 (M)

TABLE-US-00007 TABLE 7 Material (M24) Material (M25) Material (M26) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 60.0% 0.15 0.9 A2 30.0% 6.20 38.8 A4 50.0% 0.20 1.1 A5 50.0% 0.20 1.3 A10 A12 45.0% 5.40 41.5 A13 25.0% 0.60 3.0 B1 30.0% 0.12 0.9 B3 10.0% 5.50 39.3 Material 100.0% 0.68 4.3 100.0% 0.20 1.2 100.0% 4.44 28.4 (M)

TABLE-US-00008 TABLE 8 Material (M27) Material (M28) Material (M29) Material (M30) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 15.0% 0.80 4.6 15.0% 0.80 4.6 21.0% 0.80 4.6 A2 29.7% 6.20 38.8 29.7% 6.20 38.8 5.0% 6.20 38.8 42.0% 6.20 38.8 A4 33.0% 0.20 1.1 A11 0.3% 0.20 1.5 0.3% 0.20 1.5 B1 20.0% 0.40 3.1 20.0% 0.40 3.1 B2 10.0% 4.40 40.0 10.0% 37.00 336.4 B3 25.0% 5.50 39.3 25.0% 5.50 39.3 B10 25.0% 0.60 3.3 B11 74.0% 6.50 24.6 Material 100.0% 3.86 26.4 100.0% 7.12 48.7 100.0% 5.29 22.0 100.0% 2.82 22.6 (M)

TABLE-US-00009 TABLE 9 Material (M31) Material (M32) Material (M33) Material (M34) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 34.0% 15.30 87.4 34.0% 15.30 87.4 A2 10.0% 6.20 38.8 10.0% 6.20 38.8 32.0% 15.80 98.8 32.0% 15.80 98.8 B1 28.0% 0.40 3.1 28.0% 2.50 19.2 28.0% 0.40 3.1 28.0% 5.50 42.3 B2 28.0% 4.40 40.0 28.0% 4.40 40.0 12.0% 4.40 40.0 12.0% 4.40 40.0 B3 28.0% 5.50 39.3 28.0% 5.50 39.3 Material 100.0% 7.17 50.2 100.0% 7.75 54.3 100.0% 7.24 51.7 100.0% 8.66 61.9 (M)

TABLE-US-00010 TABLE 10 Material (M35) Material (M36) Material (M37) Material (M38) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 40.0% 13.80 78.9 40.0% 13.80 78.9 11.0% 34.10 194.9 19.0% 0.80 4.6 A2 10.0% 6.20 38.8 10.0% 6.20 38.8 19.0% 6.20 38.8 21.0% 6.20 38.8 B1 25.0% 0.40 3.1 25.0% 15.00 115.4 26.0% 0.40 3.1 20.0% 0.40 3.1 B2 25.0% 4.40 40.0 25.0% 4.40 40.0 27.0% 4.40 40.0 B3 30.0% 20.00 142.9 B4 8.5% 4.00 33.3 B5 8.5% 2.00 18.2 B8 10.0% 4.50 22.6 Material 100.0% 7.34 50.3 100.0% 10.99 75.3 100.0% 6.73 50.7 100.0% 7.98 51.6 (M)

TABLE-US-00011 TABLE 11 Material (M39) Material (M40) Material (M41) Material (M42) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 19.0% 0.80 4.6 10.0% 0.80 4.6 35.0% 24.70 141.1 56.0% 24.70 141.1 A2 21.0% 6.20 38.8 A3 40.0% 21.50 126.5 35.0% 0.60 3.5 A4 25.0% 0.20 1.1 22.0% 0.20 1.1 A5 25.0% 0.20 1.3 22.0% 0.20 1.3 A6 B1 20.0% 20.50 157.7 B3 30.0% 20.00 142.9 B6 15.0% 0.60 3.3 B7 15.0% 0.50 2.7 B8 10.0% 4.50 22.6 Material 100.0% 12.00 77.6 100.0% 8.78 51.9 100.0% 9.02 51.2 100.0% 13.92 81.1 (M)

TABLE-US-00012 TABLE 12 Material (M43) Material (M44) Material (M45) Material (M46) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 34.0% 12.10 69.1 A3 60.0% 20.00 117.6 10.0% 6.75 39.7 50.0% 15.00 88.2 A4 43.0% 18.70 106.9 10.0% 0.20 1.1 A5 43.0% 0.20 1.3 10.0% 0.20 1.3 A6 10.0% 2.50 13.2 A7 A8 20.0% 5.60 40.0 A9 28.0% 4.75 39.6 A11 20.0% 4.00 30.8 B1 20.0% 0.40 3.1 B2 28.0% 4.38 39.8 B8 14.0% 4.50 22.6 Material 100.0% 8.76 50.9 100.0% 12.88 83.6 100.0% 7.35 52.1 100.0% 8.91 53.8 (M)

TABLE-US-00013 TABLE 13 Material (M47) Material (M48) Material (M49) Material (M50) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 22.0% 0.15 0.9 55.0% 7.50 42.9 56.0% 15.00 85.7 A2 12.0% 6.20 38.8 A3 12.0% 0.60 3.5 A4 A5 A7 A9 30.0% 0.40 3.3 8.0% 5.50 45.8 8.0% 0.40 3.3 A10 67.0% 0.10 0.5 B1 11.0% 0.40 3.1 14.0% 14.70 113.1 24.0% 0.40 3.1 B2 11.0% 4.40 40.0 B4 35.0% 11.50 95.8 B5 35.0% 4.90 44.5 Material 100.0% 5.86 50.3 100.0% 0.14 0.7 100.0% 7.85 50.5 100.0% 8.60 54.0 (M)

TABLE-US-00014 TABLE 14 Material (M51) Material (M52) Material (M53) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 42.0% 21.00 120.0 40.0% 0.80 4.6 40.0% 0.15 0.9 A3 33.0% 0.60 3.5 B1 20.0% 32.00 246.2 10.0% 0.30 2.3 B3 40.0% 5.50 39.3 50.0% 0.10 0.7 B7 25.0% 0.50 2.7 Material 100.0% 9.14 52.0 100.0% 8.92 58.7 100.0% 0.14 0.9 (M)

TABLE-US-00015 TABLE 15 Material (M54) Material (M55) Material (M56) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 60.0% 0.15 0.9 30.0% 20.00 114.3 A4 50.0% 16.70 95.4 A5 50.0% 0.00 1.3 A10 A12 45.0% 5.40 41.5 A13 25.0% 0.60 3.0 B1 30.0% 0.12 0.9 B3 10.0% 0.20 1.4 Material 100.0% 0.15 0.9 100.0% 8.45 50.4 100.0% 9.79 50.3 (M)

TABLE-US-00016 TABLE 16 Material (M57) Material (M58) Material (M59) Material (M60) Compound Composition YI YI/n Composition YI YI/n Composition YI YI/n Composition YI YI/n A1 15.0% 0.80 4.6 15.0% 0.10 0.6 21.0% 0.80 4.6 A2 29.7% 6.20 38.8 29.7% 0.10 0.6 5.0% 6.20 38.8 42.0% 0.03 0.2 A4 33.0% 0.40 0.1 A11 0.3% 0.20 1.5 0.3% 0.20 1.5 B1 20.0% 0.40 3.1 20.0% 0.05 0.4 B2 10.0% 40.00 363.6 10.0% 0.10 0.9 B3 25.0% 5.50 39.3 25.0% 0.10 0.7 B10 25.0% 0.03 0.2 B11 74.0% 17.20 65.2 Material 100.0% 7.42 50.7 100.0% 0.09 0.6 100.0% 13.21 55.0 100% 0.09 0.7 (M)

<Evaluation of Storage Stability of Liquid Crystal Composition>

[0259] The increasing rate of the polymer component and viscosity increasing rate were measured by storing the solution of the liquid crystal composition of Examples 1 to 30 and Comparative Examples 1 to 30 at 50 C. for one month in order to evaluate the storage stability. The increasing rate of the polymer component was calculated by the following expression by measuring each amount of the polymer component before and after storage, {(Amount of polymer component after storage)(Amount of polymer component before storage)}/(Amount of polymer component before storage)}100. The measurement of the polymer component was carried out by a GPC apparatus.

[0260] The viscosity increasing rate was calculated by the following expression by measuring each viscosity before and after storage, {(Viscosity after storage)(Viscosity before storage)}/(Viscosity before storage)}100. The measurement of viscosity was carried out by an E-type viscometer. These results are shown in Table 17 and Table 18.

TABLE-US-00017 TABLE 17 Polymer Viscosity Material (M) increasing increasing Material YI/n rate rate Example 1 M1 15.7 1.0% 1.0% Example 2 M2 50 5.0% 4.0% Example 3 M3 29.7 3.0% 2.0% Example 4 M4 49.8 4.0% 3.0% Example 5 M5 14.7 1.0% 1.0% Example 6 M6 49.9 4.0% 3.0% Example 7 M7 23.1 2.0% 1.0% Example 8 M8 23.5 2.0% 1.0% Example 9 M9 49.8 5.0% 4.0% Example 10 M10 2.5 3.0% 2.0% Example 11 M11 4.8 3.0% 2.0% Example 12 M12 3.1 3.0% 2.0% Example 13 M13 4.7 3.0% 2.0% Example 14 M14 8.1 3.0% 2.0% Example 15 M15 11.9 1.0% 1.0% Example 16 M16 10.3 1.0% 1.0% Example 17 M17 19.1 1.0% 1.0% Example 18 M18 1.8 3.0% 2.0% Example 19 M19 11.3 1.0% 1.0% Example 20 M20 4.1 3.0% 2.0% Example 21 M21 3.7 3.0% 2.0% Example 22 M22 17.1 1.0% 1.0% Example 23 M23 1.1 3.0% 2.0% Example 24 M24 4.3 3.0% 2.0% Example 25 M25 1.2 3.0% 2.0% Example 26 M26 28.4 3.0% 2.0% Example 27 M27 26.4 2.0% 1.0% Example 28 M28 48.7 4.0% 3.0% Example 29 M29 22 3.0% 2.0% Example 30 M30 22.6 1.0% 1.0%

TABLE-US-00018 TABLE 18 Polymer Viscosity Material (M) increasing increasing Material YI/n rate rate Comparative M31 50.2 7.0% 6.0% Example 1 Comparative M32 54.3 9.0% 8.0% Example 2 Comparative M33 51.7 7.0% 6.0% Example 3 Comparative M34 61.9 10.0% 9.0% Example 4 Comparative M35 50.3 7.0% 6.0% Example 5 Comparative M36 75.3 13.0% 12.0% Example 6 Comparative M37 50.7 7.0% 6.0% Example 7 Comparative M38 51.6 7.0% 6.0% Example 8 Comparative M39 77.6 15.0% 13.0% Example 9 Comparative M40 51.9 7.0% 6.0% Example 10 Comparative M41 51.2 7.0% 6.0% Example 11 Comparative M42 81.1 14.0% 12.0% Example 12 Comparative M43 50.9 7.0% 6.0% Example 13 Comparative M44 83.6 15.0% 13.0% Example 14 Comparative M45 52.1 7.0% 6.0% Example 15 Comparative M46 53.8 9.0% 8.0% Example 16 Comparative M47 50.3 7.0% 6.0% Example 17 Comparative M48 0.7 7.0% 6.0% Example 18 Comparative M49 50.5 7.0% 6.0% Example 19 Comparative M50 54 9.0% 8.0% Example 20 Comparative M51 52 7.0% 6.0% Example 21 Comparative M52 58.7 10.0% 9.0% Example 22 Comparative M53 0.9 7.0% 5.0% Example 23 Comparative M54 0.9 7.0% 5.0% Example 24 Comparative M55 50.4 7.0% 6.0% Example 25 Comparative M56 53.3 7.0% 6.0% Example 26 Comparative M57 50.7 7.0% 6.0% Example 27 Comparative M58 0.6 7.0% 5.0% Example 28 Comparative M59 55 9.0% 8.0% Example 29 Comparative M60 0.7 7.0% 5.0% Example 30

[0261] From Table 17 and Table 18, it was found that the polymer increasing rate was small and the viscosity increasing rate was small in Examples 1 to 29 in which the value of YI/n of the material (M) is in the range of 1.0 to 50.0.

[0262] <Preparation of Film for Evaluating Adhesiveness>

[0263] The polymerizable liquid crystal compositions of Examples 1 to 30 and Comparative Examples 1 to 30 were applied onto the TAC film substrate with a bar coater #3 at room temperature, and dried at 80 C. for 2 minutes. Then, films of Examples 1 to 30 and Comparative Examples 1 to 30 were obtained by standing the resultant at room temperature for 2 minutes, and irradiating the resultant with UV light to set the illuminance to be 500 mJ/cm.sup.2 by using a conveyor type high-pressure mercury lamp.

[0264] <Evaluation of Adhesiveness>

[0265] The Adhesiveness of the film obtained by the above was measured by putting cuts into the film in a grid pattern with a cutter to make a grid of 2 mm square using a cross-cut method which uses a cutter and is in accordance with JIS K5600-5-6.

[0266] Classification 0: There was no peeling on any grid.

[0267] Classification 1: Small peeling of a coating film was confirmed in the intersection of the cuts (less than 5%).

[0268] Classification 2: The coating film was peeled off at the intersection of the cuts along the lines of the cuts (5% or more and less than 15%).

[0269] Classification 3: The coating film was peeled partially or fully off along the lines of the cuts (15% or more and less than 35%).

[0270] Classification 4: The coating film was peeled partially or fully largely off along the lines of the cut (35% or more and less than 65%).

[0271] Classification 5: Classification 4 or more The results are shown in Table 19 and Table 20.

[0272] <Preparation of Film for Evaluating Reliability Test>

[0273] The polyimide solution for the alignment film was applied on the glass substrate having a thickness of 0.7 mm with a spin coating method at room temperature, dried at 100 C. for 10 minutes, and then baked at 200 C. for 60 minutes to obtain a coating film. The obtained coating film was subjected to rubbing treatment to obtain a substrate. The polymerizable liquid crystal compositions of Examples 1 to 30 and Comparative Examples 1 to 30 were applied onto the substrate with a spin coater at room temperature, and then dried at 80 C. for 2 minutes. Then, films of Examples 1 to 30 and Comparative Examples 1 to 30 were obtained by standing the resultant at room temperature for 2 minutes, and irradiating the resultant with UV light to set the illuminance to be 500 mJ/cm.sup.2 by using a conveyor type high-pressure mercury lamp.

[0274] <Evaluation 1 of Reliability Test of Film>

[0275] In order to evaluate the occurrence easiness of discoloration due to reliability test in the film obtained by the above, the films of Examples 1 to 30, and Comparative Examples 1 to 30 were stored in a light resistance test machine (UV intensity of 500 W/m.sup.2) for one month. The degree of yellowness (YI) was obtained by measuring each yellowness index (YI) of the film before storage and after storage. The yellowness index (YI) was calculated with the supplied color diagnostic program by measuring the absorption spectrum of the polymer in the spectrophotometer. Calculation Expression is as follows,

YI=100(1.28X1.06Z)/Y

[0276] In the expression, YI represents yellowness index, and X, Y, and Z represent tristimulus values in the XYZ color system (JIS K 7373).

[0277] In addition, the degree of yellowness (YI) refers to the difference between the initial yellowness index and the yellowness index after exposure (JIS K 7373).

[0278] A: Degree of yellowness (YI) is less than 0.5

[0279] B: Degree of yellowness (YI) is 0.5 or more and less than 1

[0280] C: Degree of yellowness (YI) is 1 or more and less than 5

[0281] D: Degree of yellowness (YI) is 5 or more

[0282] <Evaluation 2 of Discoloration of Film>

[0283] The films of Examples 1 to 29 and Comparative Examples 1 to 29 were stored in a dryer at 80 C. for one month. The degree of yellowness (YI) was obtained by measuring each yellowness index (YI) of the film before storage and after storage in the same manner as in the method of Evaluation 1 of the discoloration of the film. The results are shown in Table 19 and Table 20.

[0284] <Evaluation of Repellence Degree at Time of Film Production>

[0285] After the solution of the liquid crystal compositions of Examples 1 to 30 and Comparative Examples 1 to 30 was stored at 50 C. for one month, the solution was applied onto TAC (triacetyl cellulose) film with a bar coater #4 at room temperature and then dried at 80 C. for 2 minutes. Then, after standing at room temperature for 2 minutes, the resultant was irradiated with UV light to set the illuminance to be 500 mJ/cm.sup.2.

[0286] A: repellence was not observed at all

[0287] B: repellence was slightly observed

[0288] C: repellence was slightly a lot observed

[0289] D: repellence was so much observed

[0290] <Alignment Properties of Film>

[0291] The polyimide solution for the alignment film was applied on the glass substrate having a thickness of 0.7 mm with a spin coating method at room temperature, dried at 100 C. for 10 minutes, and then baked at 200 C. for 60 minutes to obtain a coating film. The obtained coating film was subjected to rubbing treatment to obtain a substrate. The solution of the liquid crystal compositions of Examples 1 to 29 and Comparative Examples 1 to 29 was stored at 60 C. for one month, and the solution was applied onto the substrate with a spin coater, and then dried at 80 C. for 2 minutes. Then, after standing at room temperature for 2 minutes, the resultant was irradiated with UV light to set the illuminance to be 500 mJ/cm.sup.2. Further, The polyimide solution for the alignment film of Examples 8, 9, 13, 14, and 18, and Comparative Examples 8, 9, 13, 14, and 18 was applied on the glass substrate having a thickness of 0.7 mm with a spin coating method at room temperature, dried at 100 C. for 10 minutes, and then baked at 200 C. for 60 minutes to obtain a coating film, and the liquid crystal compositions of Examples 8, 9, 13, 14, and 18, and Comparative Examples 8, 9, 13, 14, and 18 were applied on the substrate with a spin coater and then dried at 80 C. for 2 minutes. Then, after standing at room temperature for 2 minutes, the resultant was irradiated with UV light to set the illuminance to be 500 mJ/cm.sup.2 (without rubbing treatment of the coating film).

[0292] A: No defect was detected by visual inspection, and no defect was also detected by the polarizing microscope observation.

[0293] B: No defect was detected by visual inspection, but the non-aligned portion was detected in a part by the polarizing microscope observation.

[0294] C: Some defect was detected by visual inspection, and the non-aligned portion was detected in a part by the polarizing microscope observation.

[0295] D: Some defect was detected by visual inspection, and non-aligned portion was also entirely detected by the polarizing microscope observation.

The results are shown in Table 19 and Table 20.

TABLE-US-00019 TABLE 19 Material (M) Alignment YI/n Adhesiveness Discoloration 1 Discoloration 2 Repellence properties Example 1 15.7 Classification 0 A A A A Example 2 50 Classification 1 B B B B Example 3 29.7 Classification 0 A A A A Example 4 49.8 Classification 1 B B B A Example 5 14.7 Classification 0 A A A A Example 6 49.9 Classification 1 B B B B Example 7 23.1 Classification 0 A A A A Example 8 23.5 Classification 0 A A A A Example 9 49.8 Classification 1 B B B B Example 10 2.5 Classification 0 A A A A Example 11 4.8 Classification 0 A A A A Example 12 3.1 Classification 0 A A A A Example 13 4.7 Classification 0 A A A A Example 14 8.1 Classification 0 A A A A Example 15 11.9 Classification 0 A A A A Example 16 10.3 Classification 0 A A A A Example 17 19.1 Classification 0 A A A A Example 18 1.8 Classification 0 A A A A Example 19 11.3 Classification 0 A A A A Example 20 4.1 Classification 0 A A A A Example 21 3.7 Classification 0 A A A A Example 22 17.1 Classification 0 A A A A Example 23 1.1 Classification 0 A A A A Example 24 4.3 Classification 0 A A A A Example 25 1.2 Classification 0 A A A A Example 26 28.4 Classification 0 A A A A Example 27 26.4 Classification 0 A A A A Example 28 48.7 Classification 0 B B B A Example 29 22 Classification 1 A A A A Example 30 22.6 Classification 0 A A A A

TABLE-US-00020 TABLE 20 Material (M) Alignment YI/n Adhesiveness Discoloration 1 Discoloration 2 Repellence properties Comparative Example 1 50.2 Classification 2 C C C B Comparative Example 2 54.3 Classification 3 D D D D Comparative Example 3 51.7 Classification 3 D D D C Comparative Example 4 61.9 Classification 4 D D D D Comparative Example 5 50.3 Classification 2 C C C B Comparative Example 6 75.3 Classification 5 D D D D Comparative Example 7 50.7 Classification 2 C C C B Comparative Example 8 51.6 Classification 3 D D D C Comparative Example 9 77.6 Classification 5 D D D D Comparative Example 10 51.9 Classification 3 C C C C Comparative Example 11 51.2 Classification 3 D D D C Comparative Example 12 81.1 Classification 4 D D D D Comparative Example 13 50.9 Classification 3 C C C C Comparative Example 14 83.6 Classification 4 D D D D Comparative Example 15 52.1 Classification 3 D D D D Comparative Example 16 53.8 Classification 3 D D D D Comparative Example 17 50.3 Classification 2 C C C B Comparative Example 18 0.7 Classification 2 C C C B Comparative Example 19 50.5 Classification 2 C C C B Comparative Example 20 54 Classification 3 D D D D Comparative Example 21 52 Classification 3 D D D D Comparative Example 22 58.7 Classification 4 D D D D Comparative Example 23 0.9 Classification 4 C C D C Comparative Example 24 0.9 Classification 4 C C D C Comparative Example 25 50.4 Classification 2 C C C B Comparative Example 26 53.3 Classification 2 C C C B Comparative Example 27 50.7 Classification 2 C C C B Comparative Example 28 0.6 Classification 4 C C D C Comparative Example 29 55 Classification 3 D D D D Comparative Example 30 0.7 Classification 4 C C D C

[0296] As seen from Table 19 and Table 20, it was found that an optical anisotropic body was obtained in which the adhesiveness was high, the discoloration after a long-term storage was small, the repellence at the time of film production was small, and the alignment properties were excellent in Examples 1 to 30 in which the value of YI/n of the material (M) is in the range of 1.0 to 50.0.