INTERMEDIATE FILM FOR LAMINATED GLASS, AND LAMINATED GLASS

Abstract

The present invention aims to provide an interlayer film for laminated glass capable of displaying images with a high luminous intensity when irradiated with a light beam, and a laminated glass including the interlayer film for laminated glass. The present invention relates to an interlayer film for laminated glass, including a light-emitting layer that contains a thermoplastic resin and a lanthanoid complex with a polydentate ligand containing a halogen atom, the light-emitting layer containing not more than 50 ppm in total of potassium, sodium, and magnesium.

Claims

1-6. (canceled)

7. An interlayer film for laminated glass, comprising: a light-emitting layer containing a thermoplastic resin and a lanthanoid complex with a polydentate ligand containing a halogen atom; and an adhesive layer containing a thermoplastic resin and at least one metal salt selected from the group consisting of alkali metal salts, alkaline earth metal salts, and magnesium salts, the light-emitting layer containing a smaller total amount of alkali metals, alkaline-earth metals, and magnesium than the adhesive layer.

8. The interlayer film for laminated glass according to claim 7, wherein the lanthanoid complex with a polydentate ligand containing a halogen atom is a lanthanoid complex with a bidentate ligand containing a halogen atom or a lanthanoid complex with a tridentate ligand containing a halogen atom.

9. The interlayer film for laminated glass according to claim 8, wherein the total amount of sodium, potassium, and magnesium in the light-emitting layer is smaller than the total amount of sodium, potassium, and magnesium in the adhesive layer.

10. The interlayer film for laminated glass according to claim 8, wherein the light-emitting layer contains not more than 40 ppm of magnesium.

11. The interlayer film for laminated glass according to claim 8, wherein the halogen atom is a fluorine atom.

12. The interlayer film for laminated glass according to claim 8, wherein the light-emitting layer contains a lanthanoid complex with a bidentate ligand containing a halogen atom and having an acetylacetone skeleton.

13. (canceled)

Description

BRIEF DESCRIPTION OF DRAWINGS

[0197] FIG. 1 illustrates a schematic view of an exemplary embodiment of the interlayer film for laminated glass of the first aspect of the present invention having a wedge-shaped cross section.

[0198] FIG. 2 illustrates a schematic view of an exemplary embodiment of the interlayer film for laminated glass of the first aspect of the present invention having a wedge-shaped cross section.

[0199] FIG. 3 illustrates a schematic view of an exemplary embodiment of the interlayer film for laminated glass of the first aspect of the present invention having a wedge-shaped cross section.

[0200] FIG. 4 illustrates a schematic view of an exemplary embodiment of the interlayer film for laminated glass of the second aspect of the present invention having a wedge-shaped cross section.

[0201] FIG. 5 illustrates a schematic view of an exemplary embodiment of the interlayer film for laminated glass of the second aspect of the present invention having a wedge-shaped cross section.

[0202] FIG. 6 illustrates a schematic view of an exemplary embodiment of the interlayer film for laminated glass of the second aspect of the present invention having a wedge-shaped cross section.

DESCRIPTION OF EMBODIMENTS

[0203] Embodiments of the present invention are more specifically described below with reference to, but not limited to, examples.

Example 1

(1) Preparation of Eu(TFA).SUB.3.phen

[0204] Europium acetate (Eu(CH.sub.3COO).sub.3) in an amount of 5 g (12.5 mmol) was dissolved in 50 mL of distilled water. To the solution was added 7 g (33.6 mmol) of trifluoroacetylacetone (TFA, CH.sub.3COCH.sub.2COCF.sub.3) and stirred at room temperature for 3 hours. The precipitated solid was filtered, washed with water, and recrystallized using methanol and distilled water to give Eu(TFA).sub.3(H.sub.2O).sub.2. Then, 5.77 g of the resulting complex (Eu(TFA).sub.3(H.sub.2O).sub.2) and 2.5 g of 1,10-phenanthroline (phen) were dissolved in 100 mL of methanol, followed by heating under reflux for 12 hours. After 12 hours, methanol was distilled off under reduced pressure, thereby obtaining a white product. The white product powder was washed with toluene so that unreacted materials were removed by suction filtration. Subsequently, toluene was distilled off under reduced pressure to give a powder. Through recrystallization using a solvent mixture of toluene and hexane, Eu(TFA).sub.3phen was obtained.

(2) Preparation of Polyvinyl Butyral

[0205] To a 2 m.sup.3 reactor fitted with a stirrer were charged 1700 kg of a 7.5% by mass aqueous solution of PVA (degree of polymerization: 1700, degree of saponification: 99 mol %), 74.6 kg of n-butyraldehyde, and 0.13 kg of 2,6-di-t-butyl-4-methyl phenol, and the entire mixture was cooled to 14 C. Subsequently, 99.44 L of 30% by mass nitric acid was added to the mixture to initiate the butyralization of PVA. Ten minutes after the end of the addition, the temperature was raised to 65 C. over 90 minutes, followed by further reaction for 120 minutes. Thereafter, the temperature was lowered to room temperature, and the precipitated solid was filtered. The solid was washed ten times with a 10-fold amount (by mass) of ion exchange water. The washed solid was sufficiently neutralized using a 0.3% by mass sodium hydrogen carbonate aqueous solution and was then washed ten times with a 10-fold amount (by mass) of ion exchange water. The resulting solid was dehydrated and dried, thereby obtaining polyvinyl butyral 1 (hereinafter, also referred to as PVB1). The acetyl group content, degree of butyralization, and hydroxy group content of PVB1 were 0.9 mol %, 68.5 mol %, and 30.6 mol %, respectively.

(3) Production of Interlayer Film for Laminated Glass and Laminated Glass

[0206] A luminous plasticizer solution was prepared by adding 0.2 parts by weight of the Eu(TFA).sub.3phen obtained above to 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO). The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of PVB1 using a mixing roll to give a resin composition.

[0207] The resin composition was extruded with an extruder to provide an interlayer film for laminated glass (thickness: 760 m).

[0208] The resulting interlayer film for laminated glass was interposed between a pair of clear glass plates (thickness: 2.5 mm, 5 cm in length5 cm in width) to prepare a laminate. The laminate was pressed under vacuum at 90 C. for 30 minutes to be press-bonded using a vacuum laminator. The press-bonded laminate was subjected to further 20-minute press-bonding under 14 MPa at 140 C. using an autoclave, thereby obtaining a laminated glass.

Example 2

(1) Preparation of Eu(TFA).SUB.3.dpphen

[0209] Eu(TFA).sub.3dpphen was obtained as in Example 1, except that 4,7-diphenyl phenanthroline was used instead of 1,10-phenanthroline.

(2) Production of Interlayer Film for Laminated Glass and Laminated Glass

[0210] An interlayer film for laminated glass and a laminated glass were produced as in Example 1, except that the Eu(TFA).sub.3dpphen obtained above was used.

Example 3

(1) Preparation of Eu(HFA).SUB.3.phen

[0211] Eu(HFA).sub.3phen was prepared as in Example 1, except that hexafluoroacetylacetone was used instead of trifluoroacetylacetone.

(2) Production of Interlayer Film for Laminated Glass and Laminated Glass

[0212] An interlayer film for laminated glass and a laminated glass were produced as in Example 1, except that the Eu(HFA).sub.3phen obtained above was used.

Example 4

(1) Preparation of Tb(TFA).SUB.3.phen

[0213] Tb(TFA).sub.3phen was prepared as in Example 1, except that terbium acetate was used instead of europium acetate.

(2) Production of Interlayer Film for Laminated Glass and Laminated Glass

[0214] An interlayer film for laminated glass and a laminated glass were produced as in Example 1, except that the Tb(TFA).sub.3phen obtained above was used.

Example 5

[0215] An interlayer film for laminated glass and a laminated glass were produced as in Example 2, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 30 ppm of magnesium.

Example 6

[0216] An interlayer film for laminated glass and a laminated glass were produced as in Example 3, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 30 ppm of magnesium.

Example 7

[0217] An interlayer film for laminated glass and a laminated glass were produced as in Example 4, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 30 ppm of magnesium.

Example 8

[0218] An interlayer film for laminated glass and a laminated glass were produced as in Example 2, except that potassium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 30 ppm of potassium.

Example 9

[0219] An interlayer film for laminated glass and a laminated glass were produced as in Example 2, except that sodium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 30 ppm of sodium.

Example 10

[0220] An interlayer film for laminated glass and a laminated glass were produced as in Example 3, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 40 ppm of magnesium.

Example 11

[0221] An interlayer film for laminated glass and a laminated glass were produced as in Example 4, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 40 ppm of magnesium.

Comparative Example 1

[0222] An interlayer film for laminated glass and a laminated glass were produced as in Example 2, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 70 ppm of magnesium.

Comparative Example 2

[0223] An interlayer film for laminated glass and a laminated glass were produced as in Example 2, except that sodium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 100 ppm of sodium.

Comparative Example 3

[0224] An interlayer film for laminated glass and a laminated glass were produced as in Example 3, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 70 ppm of magnesium.

Comparative Example 4

[0225] An interlayer film for laminated glass and a laminated glass were produced as in Example 3, except that sodium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 100 ppm of sodium.

Comparative Example 5

[0226] An interlayer film for laminated glass and a laminated glass were produced as in Example 4, except that magnesium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 70 ppm of magnesium.

Comparative Example 6

[0227] An interlayer film for laminated glass and a laminated glass were produced as in Example 4, except that sodium chloride was blended in the resin composition so that the resulting interlayer film for laminated glass contained 100 ppm of sodium.

Examples 12 to 17, Comparative Examples 7 and 8

[0228] An interlayer film for laminated glass and a laminated glass were produced as in Example 1, except that the amounts of sodium chloride, potassium chloride, and magnesium chloride in the luminous plasticizer solution blended in the resin composition were changed so that the resulting interlayer film for laminated glass contained sodium, potassium, and magnesium in amounts shown in Table 3, and light-emitting particles shown in Table 3 were used in amounts shown in Table 3.

(Evaluation) The interlayer films for laminated glass and laminated glasses obtained in the examples and comparative examples were evaluated by the methods below. Tables 1 to 3 show the results.

(1) Measurement of the Amounts of Metal Components in Interlayer Films for Laminated Glass

[0229] The amounts of sodium, potassium, and magnesium in the interlayer films for laminated glass were measured with an ICP emission spectrometer (ICPE-9000) available from Shimadzu Corporation.

(2) Evaluation of Initial Light-Emitting Properties

[0230] The laminated glasses each in a size of 5 cm in length5 cm in width were irradiated with light at an entire face in a dark room. The light was emitted from a high power xenon light source (REX-250 available from Asahi Spectra Co., Ltd, irradiation wavelength: 405 nm) located 10 cm away from the face of the laminated glass in the perpendicular direction. The luminance at 45 degrees to the face of the laminated glass irradiated with light was measured with a luminance meter (SR-3AR available from Topcon Technohouse Corporation) disposed at a minimum distance of 35 cm away from the face of the laminated glass on the side at which the light was emitted.

TABLE-US-00001 TABLE 1 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Resin phr 100 100 100 100 100 100 100 100 Plasticizer phr 40 40 40 40 40 40 40 40 Eu complex Structure Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Eu(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Eu(TFA).sub.3 phen dpphen phen phen dpphen phen phen dpphen phr 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Sodium ppm 5 5 5 5 5 5 5 5 Potassium ppm 5 5 5 5 5 5 5 30 Magnesium ppm 0 0 0 0 30 30 30 0 Total ppm 10 10 10 10 40 40 40 35 Initial light-emitting properties 250 220 240 530 90 82 192 120

TABLE-US-00002 TABLE 2 Compar- Compar- Compar- Compar- Compar- Compar- ative ative ative ative ative ative Example 9 Example 10 Example 11 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Resin phr 100 100 100 100 100 100 100 100 100 Plasticizer phr 40 40 40 40 40 40 40 40 40 Eu complex Structure Eu(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(HFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Tb(TFA).sub.3 dpphen phen phen dpphen dpphen phen phen phen phen phr 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Sodium ppm 30 5 5 5 100 5 100 5 100 Potassium ppm 5 5 5 5 5 5 5 5 5 Magnesium ppm 0 40 40 70 0 70 0 70 0 Total ppm 35 50 50 80 105 80 105 80 105 Initial light-emitting properties 110 77 117 10 12 11 24 43 47

TABLE-US-00003 TABLE 3 Comparative Comparative Example 12 Example 13 Example 14 Example 15 Example 16 Example 17 Example 7 Example 8 Resin phr 100 100 100 100 100 100 100 100 Plasticizer phr 40 40 40 40 40 40 40 40 Eu complex Structure Eu(HFA).sub.3 Eu(HFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Tb(TFA).sub.3 Tb(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 phen phen phen phen phen phen phen phen phr 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 Sodium ppm 5 5 5 5 5 5 5 5 Potassium ppm 5 5 5 5 5 5 5 5 Magnesium ppm 0 30 40 0 30 40 70 70 Total ppm 10 40 50 10 40 50 80 80 Initial light-emitting properties 708 260 220 1420 630 597 34 42

Example 18

[0231] To 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) was added 0.2 parts by weight of the Eu(HFA).sub.3phen obtained in Example 3. Further, tin-doped indium oxide particles (ITO particles) as a heat ray absorber was added in an amount of 0.15% by weight in 100% by weight of an interlayer film to be obtained so that a luminous plasticizer solution was prepared. The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of the obtained polyvinyl butyral 1 using a mixing roll to give a resin composition.

[0232] The resin composition was extruded with an extruder to provide an interlayer film for laminated glass (thickness: 760 m).

[0233] The resulting interlayer film for laminated glass was interposed between a pair of clear glass plates (thickness: 2.5 mm, 5 cm in length5 cm in width) to prepare a laminate. The laminate was pressed under vacuum at 90 C. for 30 minutes to be press-bonded using a vacuum laminator. The press-bonded laminate was subjected to further 20-minute press-bonding under 14 MPa at 140 C. using an autoclave, thereby obtaining a laminated glass.

Example 19

[0234] To 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) was added 0.2 parts by weight of the Eu(HFA).sub.3phen obtained in Example 3. Further, cesium-doped tungsten oxide (Cs0.33WO3) particles (CWO particles) as a heat ray absorber was added in an amount of 0.05% by weight in 100% by weight of an interlayer film to be obtained so that a luminous plasticizer solution was prepared. The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of the obtained polyvinyl butyral 1 using a mixing roll to give a resin composition.

[0235] The resin composition was extruded with an extruder to provide an interlayer film for laminated glass (thickness: 760 m).

[0236] The resulting interlayer film for laminated glass was interposed between a pair of clear glass plates (thickness: 2.5 mm, 5 cm in length5 cm in width) to prepare a laminate. The laminate was pressed under vacuum at 90 C. for 30 minutes to be press-bonded using a vacuum laminator. The press-bonded laminate was subjected to further 20-minute press-bonding under 14 MPa at 140 C. using an autoclave, thereby obtaining a laminated glass.

Examples 20 and 21

[0237] An interlayer film for laminated glass and a laminated glass were produced as in Example 18, except that the light-emitting particles shown in Table 4 were used, and the amount of the heat ray absorber was changed as shown in Table 4.

(Evaluation) The interlayer films for laminated glass and laminated glasses obtained in the examples and comparative examples were evaluated by the methods below. Table 4 shows the results.

(1) Measurement of the Amounts of Metal Components in Interlayer Films for Laminated Glass

[0238] The amounts of sodium, potassium, and magnesium in the interlayer films for laminated glass were measured with an ICP emission spectrometer (ICPE-9000) available from Shimadzu Corporation. The specific procedure of the measurement is as follows. An amount of 0.3 g of each interlayer film for laminated glass as a sample was put in an insert container together with 6 mg of nitric acid. Separately, 6 mg of ultrapure water and 1 mg of hydrogen peroxide were put in a dissolution vessel. The insert container was placed in the dissolution vessel, and the vessel was capped.

[0239] The dissolution vessel was heated at 200 C. for 15 minutes using a microwave sample digestion system ETHOS One available from Milestone General K.K. Subsequently, the content of the insert container was diluted with ultrapure water with a resistivity of 18.2 M-cm at 25 C. to prepare a test solution. The metal contents of the test solution were analyzed in a closed system using an ICP emission spectrometer (ICPE-9000) available from Shimadzu Corporation. The amounts of metals in the interlayer film for laminated glass were calculated from the determined metal contents.

(2) Evaluation of Initial Light-Emitting Properties

[0240] The laminated glasses each in a size of 5 cm in length5 cm in width were irradiated with light at an entire face in a dark room. The light was emitted from a high power xenon light source (REX-250 available from Asahi Spectra Co., Ltd, irradiation wavelength: 405 nm) located 10 cm away from the face of the laminated glass in the perpendicular direction. The luminance at 45 degrees to the face of the laminated glass irradiated with light was measured with a luminance meter (SR-3AR available from Topcon Technohouse Corporation) disposed at a minimum distance of 35 cm away from the face of the laminated glass on the side at which the light was emitted.

(Evaluation of Heat Insulation Properties)

[0241] The laminated glasses obtained in Examples 18 to 21 were each measured for the transmittance and reflectance of light with a wavelength of 300 to 2500 nm in conformity with ISO 13837 using a spectrophotometer (U-4100 available from Hitachi High-Technologies Corporation), and calculated the Tts from the results.

TABLE-US-00004 TABLE 4 Example Example Example Example 18 19 20 21 Resin phr 100 100 100 100 Plasticizer phr 40 40 40 40 Eu complex Structure Eu(HFA).sub.3 Eu(HFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 phen phen phen phen phr 0.2 0.2 0.2 0.2 Heat- Type ITO CWO ITO ITO insulating wt % 0.15 0.05 0.5 0.15 particles Sodium ppm 5 5 5 5 Potassium ppm 5 5 5 5 Magnesium ppm 0 0 0 0 Total ppm 10 10 10 10 Initial light-emitting 208 202 203 505 properties Heat insulation 74.7 67.2 69.2 74.2 properties (Tts)

Example 22

(1) Preparation of Eu(TFA).SUB.3.phen

[0242] Europium acetate (Eu(CH.sub.3COO).sub.3) in an amount of 5 g (12.5 mmol) was dissolved in 50 mL of distilled water. To the solution was added 7 g (33.6 mmol) of trifluoroacetylacetone (TFA, CH.sub.3COCH.sub.2COCF.sub.3) and stirred at room temperature for 3 hours. The precipitated solid was filtered, washed with water, and recrystallized using methanol and distilled water to give Eu(TFA).sub.3(H.sub.2O).sub.2. Then, 5.77 g of the (Eu(TFA).sub.3(H.sub.2O).sub.2) and 2.5 g of 1,10-phenanthroline (phen) were dissolved in 100 mL of methanol, followed by heating under reflux for 12 hours. After 12 hours, methanol was distilled off under reduced pressure, thereby obtaining a white product. The white product powder was washed with toluene so that unreacted materials were removed by suction filtration. Subsequently, toluene was distilled off under reduced pressure to give a powder. Through recrystallization using a solvent mixture of toluene and hexane, Eu(TFA).sub.3phen was obtained.

(2) Resin Composition for Light-Emitting Layers

[0243] To a 2 m.sup.3 reactor fitted with a stirrer were charged 1700 kg of a 7.5% by mass aqueous solution of PVA (degree of polymerization: 2400, degree of saponification: 88 mol %), 119.4 kg of n-butyraldehyde, and 0.13 kg of 2,6-di-t-butyl-4-methyl phenol, and the entire mixture was cooled to 14 C. Subsequently, 99.44 L of 30% by mass nitric acid was added to the mixture to initiate the butyralization of PVA. Ten minutes after the end of the addition, the temperature was raised to 65 C. over 90 minutes, followed by further reaction for 120 minutes. Thereafter, the temperature was lowered to room temperature, and the precipitated solid was filtered. The solid was washed ten times with a 10-fold amount (by mass) of ion exchange water (washing before neutralization). The washed solid was sufficiently neutralized using a 0.3% by mass sodium hydrogen carbonate aqueous solution and was then washed ten times with a 10-fold amount (by mass) of ion exchange water (washing after neutralization). The resulting solid was dehydrated and dried, thereby obtaining polyvinyl butyral 2 (hereinafter, also referred to as PVB2). The acetyl group content, butyral group content, and hydroxy group content of PVB2 were 13 mol %, 65 mol %, and 22 mol %, respectively. A luminous plasticizer solution was prepared by adding 0.2 parts by weight of particles of the Eu(TFA).sub.3phen to 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO). The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of polyvinyl butyral 2 using a mixing roll to give a resin composition for light-emitting layers.

(3) Resin Composition for First and Second Adhesive Layers

[0244] A plasticizer solution was prepared by adding magnesium acetate as an adhesion modifier to 100 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO). The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of PVB1 prepared in Example 1 using a mixing roll to give a resin composition for first and second adhesive layers. Here, magnesium acetate was added to triethylene glycol di-2-ethylhexanoate (3GO) so that the resulting first and second adhesive layers each contained 40 ppm of magnesium.

(4) Production of Interlayer Film for Laminated Glass

[0245] The resin composition for light-emitting layers and the resin composition for first and second adhesive layers were co-extruded using a coextruder to prepare an interlayer film for laminated glass in which a first adhesive layer, a light-emitting layer, and a second adhesive layer were stacked in this order. The light-emitting layer had a thickness of 100 m, the first and second adhesive layers each had a thickness of 350 m, and the interlayer film for laminated glass had a thickness of 800 m.

(5) Production of Laminated Glass

[0246] The resulting interlayer film for laminated glass was interposed between a pair of clear glass plates (thickness: 2.5 mm, 5 cm in length5 cm in width) to prepare a laminate. The laminate was pressed under vacuum at 90 C. for 30 minutes to be press-bonded using a vacuum laminator. The press-bonded laminate was subjected to further 20-minute press-bonding under 14 MPa at 140 C. using an autoclave, thereby obtaining a laminated glass.

(Production of Laminated Glass for Evaluation of Penetration Resistance)

[0247] The resulting interlayer film for laminated glass was interposed between a pair of clear glass plates (thickness: 2.5 mm, 30 cm in length30 cm in width) to prepare a laminate. The laminate was pressed under vacuum at 90 C. for 30 minutes to be press-bonded using a vacuum laminator. The press-bonded laminate was subjected to further 20-minute press-bonding under 14 MPa at 140 C. using an autoclave. The portion of the interlayer film protruding from the glass plates was cut off, thereby obtaining a laminated glass for evaluation of penetration resistance.

Example 23

(1) Preparation of Eu(TFA).SUB.3.dpphen

[0248] Eu(TFA).sub.3dpphen was obtained as in Example 22, except that 4,7-diphenyl phenanthroline was used instead of 1,10-phenanthroline.

(2) Production of Interlayer Film for Laminated Glass and Laminated Glass

[0249] An interlayer film for laminated glass, a laminated glass, and a laminated glass for evaluation of penetration resistance were produced as in Example 22, except that particles of the Eu(TFA).sub.3dpphen obtained above were used.

Example 24

(1) Preparation of Eu(HFA).SUB.3.phen

[0250] Eu(HFA).sub.3phen was prepared as in Example 22, except that hexafluoroacetylacetone was used instead of trifluoroacetylacetone.

(2) Production of Interlayer Film for Laminated Glass and Laminated Glass

[0251] An interlayer film for laminated glass, a laminated glass, and a laminated glass for evaluation of penetration resistance were produced as in Example 22, except that particles of the Eu(HFA).sub.3phen obtained above were used.

Examples 25 to 34, Comparative Examples 9 to 13, and Reference Example 1

[0252] An interlayer film for laminated glass, a laminated glass, and a laminated glass for evaluation of penetration resistance were produced as in Example 22, except that: the amounts of sodium chloride, potassium chloride, and magnesium chloride in the luminous plasticizer solution blended in the resin composition for light-emitting layers and the amount of magnesium acetate in the plasticizer solution blended in the resin composition for first and second adhesive layers were changed so that the resulting light-emitting layer and adhesive layers contained sodium, potassium, and magnesium in amounts shown in Table 5, 6 or 7; the europium complex shown in Table 5, 6, or 7 was used; and the amount of the plasticizer was changed as shown in Table 5, 6, or 7.

(Evaluation)

[0253] The interlayer films for laminated glass and laminated glasses obtained in the examples, comparative examples, and reference example were evaluated by the methods below. Tables 5 to 7 show the results.

(1) Measurement of the Amounts of Metals in Light-Emitting Layer and Adhesive Layers

[0254] The resin composition prepared for producing the interlayer film for laminated glass was extruded with an extruder to prepare a light-emitting layer and an adhesive layer each having a single layer structure as samples for measuring the metal contents thereof.

[0255] The metal contents of the light-emitting layer and adhesive layer were measured with an ICP emission spectrometer (ICPE-9000) available from Shimadzu Corporation. The specific procedure of the measurement is as follows. An amount of 0.3 g of the light-emitting layer and the adhesive layer as a sample was put in an insert container together with 6 mg of nitric acid. Separately, 6 mg of ultrapure water and 1 mg of hydrogen peroxide were put in a dissolution vessel. The insert container was placed in the dissolution vessel, and the vessel was capped.

[0256] The dissolution vessel was heated at 200 C. for 15 minutes using a microwave sample digestion system ETHOS One available from Milestone General K.K. Subsequently, the content of the insert container was diluted with ultrapure water with a resistivity of 18.2 M-cm at 25 C. to prepare a test solution. The metal contents of the test solution were analyzed in a closed system using an ICP emission spectrometer (ICPE-9000) available from Shimadzu Corporation. The amounts of metals in the light-emitting layer and adhesive layer were calculated from the determined metal contents.

(2) Evaluation of Initial Light-Emitting Properties

[0257] The laminated glasses each in a size of 5 cm in length5 cm in width were irradiated with light at an entire face in a dark room. The light was emitted from a high power xenon light source (REX-250 available from Asahi Spectra Co., Ltd, irradiation wavelength: 405 nm) located 10 cm away from the face of the laminated glass in the perpendicular direction. The luminance at 45 degrees to the face of the laminated glass irradiated with light was measured with a luminance meter (SR-3AR available from Topcon Technohouse Corporation) disposed at a minimum distance of 35 cm away from the face of the laminated glass on the side at which the light was emitted.

(3) Evaluation of Penetration Resistance (Measurement of Pummel Value of Interlayer Film for Laminated Glass)

[0258] The laminated glasses for evaluation of penetration resistance were left standing at 18 C.0.6 C. for 16 hours. A center portion (150 mm in length150 mm in width) of each laminated glass was shattered with a hammer having a 0.45 kg head into glass pieces with a size of 6 mm or smaller. Areas of the films from which glass pieces fell off were measured to determine the degree of exposure, and a pummel value was assigned based on the classifications indicated in Table 8. The laminated glasses with a pummel value of 1 to 7 were evaluated as (good), while the laminated glasses with a pummel value of 0 or 8 were evaluated as x (poor).

TABLE-US-00005 TABLE 5 Example 22 Example 23 Example 24 Example 25 Example 26 Example 27 Example 28 Light- Resin (PVB) Type PVB2 PVB2 PVB2 PVB2 PVB2 PVB2 PVB2 emitting phr 100 100 100 100 100 100 100 layer Plasticizer phr 40 40 40 60 40 40 40 (3GO) Eu complex Structure Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(HFA).sub.3 Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(TFA).sub.3 phen dpphen phen dpphen dpphen dpphen dpphen phr 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Metal Na 5 5 5 20 5 5 5 contents K 5 5 5 20 5 5 5 (ppm) Mg 0 0 0 0 0 0 0 Total 10 10 10 40 10 10 10 Adhesive Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 PVB1 PVB1 PVB1 layer phr 100 100 100 100 100 100 100 Plasticizer phr 100 100 100 100 100 100 100 (3GO) Metal Na 5 5 5 5 5 5 5 contents K 5 5 5 5 5 5 5 (ppm) Mg 40 40 40 40 50 70 100 Total 50 50 50 50 60 80 110 Initial light-emitting properties 42 37 40 32 35 34 33 Pummel 5 5 5 5 4 3 2

TABLE-US-00006 TABLE 6 Example 29 Example 30 Example 31 Example 32 Example 33 Example 34 Light- Resin (PVB) Type PVB2 PVB2 PVB2 PVB2 PVB2 PVB2 emitting phr 100 100 100 100 100 100 layer Plasticizer phr 40 40 40 40 60 60 (3GO) Eu complex Structure Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 phen dpphen phen phen phen phen phr 0.2 0.2 0.2 0.2 0.2 0.2 Metal Na 5 5 5 5 20 20 contents K 5 5 5 5 20 20 (ppm) Mg 0 0 0 0 0 0 Total 10 10 10 10 40 40 Adhesive Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 PVB1 PVB1 layer phr 100 100 100 100 100 100 Plasticizer phr 40 40 40 40 40 40 (3GO) Metal Na 5 5 5 5 5 5 contents K 5 5 5 5 5 5 (ppm) Mg 40 40 40 40 40 40 Total 50 50 50 50 50 50 Initial light-emitting properties 43 40 41 101 36 94 Pummel 5 5 5 5 5 5

TABLE-US-00007 TABLE 7 Comparative Comparative Comparative Comparative Comparative Reference Example 9 Example 10 Example 11 Example 12 Example 13 Example 1 Light- Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 PVB1 PVB1 emitting phr 100 100 100 100 100 100 layer Plasticizer phr 40 40 40 40 40 60 (3GO) Eu complex Structure Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Eu(TFA).sub.3 dpphen dpphen dpphen phen phen dpphen phr 0.2 0.2 0.2 0.2 0.2 0.2 Metal Na 5 5 5 5 5 20 contents K 5 5 5 5 5 20 (ppm) Mg 50 100 50 50 50 0 Total 60 110 60 60 60 40 Adhesive Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 PVB1 PVB1 layer phr 100 100 100 100 100 100 Plasticizer phr 100 100 40 40 40 100 (3GO) Metal Na 5 5 5 5 5 5 contents K 5 5 5 5 5 5 (ppm) Mg 30 30 30 30 30 0 Total 40 40 40 40 40 10 Initial light-emitting properties 11 5 10 11 11 60 Pummel 3 3 5 5 5 8

TABLE-US-00008 TABLE 8 Degree of exposure of interlayer film (area %) Pummel value 90 < Degree of exposure 100 0 85 < Degree of exposure 90 1 60 < Degree of exposure 85 2 40 < Degree of exposure 60 3 20 < Degree of exposure 40 4 10 < Degree of exposure 20 5 5 < Degree of exposure 10 6 2 < Degree of exposure 5 7 Degree of exposure 2 8

Example 35

(Preparation of Resin Composition for Light-Emitting Layers)

[0259] A luminous plasticizer solution was prepared by adding 0.5 parts by weight of the Eu(HFA).sub.3phen obtained in Example 3 to 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO). The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of polyvinyl butyral 1 using a mixing roll to give a resin composition for light-emitting layers.

(Preparation of Resin Composition for Shape-Adjusting Layers)

[0260] A plasticizer solution was prepared by adding magnesium acetate as an adhesion modifier to 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO). The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of polyvinyl butyral 1 prepared in Example 1 using a mixing roll to give a resin composition for shape-adjusting layers. Here, magnesium acetate was added to triethylene glycol di-2-ethylhexanoate (3GO) so that the resulting shape-adjusting layer contained 40 ppm of magnesium.

(Production of Interlayer Film for Laminated Glass and Laminated Glass)

[0261] The resin composition for light-emitting layers and the resin composition for shape-adjusting layers were co-extruded using a coextruder to prepare an interlayer film for laminated glass shown in FIG. 3 having a three-layer structure in which a shape-adjusting layer, a light-emitting layer, and a shape-adjusting layer were stacked in this order. The minimum distance from one edge to the other edge of the obtained interlayer film in a direction perpendicular to the extrusion direction was measured to be 1 m.

[0262] The light-emitting layer of the resulting interlayer film for laminated glass had a wedge-shaped cross section with a minimum thickness of 100 m and a maximum thickness of 200 m. The entire interlayer film for laminated glass had a minimum thickness of 800 m, a maximum thickness of 1250 m, and a wedge angle of 0.45 mrad. The interlayer film for laminated glass was thinnest at one edge and thickest at the other edge. The minimum thickness and maximum thickness were measured by observation using an optical microscope.

[0263] The interlayer film was interposed between two transparent float glass plates (1000 mm in length300 mm in width2.5 mm in thickness) to prepare a laminate. The laminate was temporarily press-bonded using a heating roll at 230 C. The temporarily press-bonded laminate was press-bonded by a roll heat method using an autoclave under a pressure of 1.2 MPa at 135 C. for 20 minutes, thereby obtaining a laminated glass (1000 mm in length300 mm in width).

(Production of Laminated Glass for Luminance Measurement)

[0264] The interlayer film (thin part) having a length of 10 cm and a width of 10 cm was cut out in a manner the center thereof was 10 cm from one edge and on the line with the minimum distance from the one edge to the other edge. The resulting interlayer film (thin part) was interposed between two transparent float glass plates (5 cm in length5 cm in width2.5 mm in thickness) to prepare a laminate. The laminate was temporarily press-bonded using a heating roll at 230 C. The temporarily press-bonded laminate was press-bonded by a roll heat method using an autoclave under a pressure of 1.2 MPa at 135 C. for 20 minutes, thereby obtaining a laminated glass for luminance measurement (5 cm in length5 cm in width).

Examples 37 and 38, and Comparative Examples 14 and 15

[0265] An interlayer film for laminated glass, a laminated glass, and a laminated glass for luminance measurement were produced as in Example 35, except that: the amounts of sodium chloride, potassium chloride, and magnesium chloride in the resin composition for light-emitting layers were changed so that the resulting light-emitting layer contained sodium, potassium, and magnesium in amounts shown in Table 9; and the europium complex shown in Table 9 was used.

Example 39

(Preparation of Resin Composition for Light-Emitting Layers)

[0266] A luminous plasticizer solution was prepared by adding 0.2 parts by weight of the Eu(HFA).sub.3phen obtained in Example 3 to 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO). The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of polyvinyl butyral 1 using a mixing roll to give a resin composition for light-emitting layers.

(Preparation of Resin Composition for First and Second Resin Layers)

[0267] A plasticizer solution was prepared by adding magnesium acetate as an adhesion modifier to 40 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO). The entire amount of the plasticizer solution was sufficiently kneaded with 100 parts by weight of polyvinyl butyral 1 prepared in Example 1 using a mixing roll to give a resin composition for first and second resin layers. Here, magnesium acetate was added to triethylene glycol di-2-ethylhexanoate (3GO) so that the resulting first and second resin layers each contained 40 ppm of magnesium.

(Preparation of Resin Composition for Sound Insulating Layers)

[0268] A resin composition for sound insulating layers was prepared by sufficiently kneading 60 parts by weight of triethylene glycol di-2-ethylhexanoate (3GO) and 100 parts by weight of polyvinyl butyral 2 using a mixing roll.

(Production of Interlayer Film for Laminated Glass and Laminated Glass)

[0269] The resin composition for light-emitting layers was extruded into a single layer using an extruder to prepare a light-emitting layer (thickness: 760 m).

[0270] The resin composition for first resin layers and second resin layers and the resin composition for sound insulating layers were co-extruded using a coextruder to prepare a laminate having a three-layer structure as shown in FIG. 3 in which a first resin layer, a sound insulating layer, and a second resin layer were stacked in this order. The light-emitting layer was stacked on the outer surface of the second resin layer of the laminate, thereby obtaining an interlayer film for laminated glass. The minimum distance from one edge to the other edge of the obtained interlayer film in a direction perpendicular to the extrusion direction was measured to be 1 m.

[0271] In the resulting interlayer film for laminated glass, the sound insulating layer had a wedge-shaped cross section with a minimum thickness of 100 m and a maximum thickness of 200 m; the first resin layer had a wedge-shaped cross section with a minimum thickness of 350 m and a maximum thickness of 525 m; and the second resin layer had a wedge-shaped cross section with a minimum thickness of 350 m and a maximum thickness of 525 m. The entire interlayer film for laminated glass had a wedge-shaped cross section with a minimum thickness of 1560 m, a maximum thickness of 2010 m, and a wedge angle of 0.45 mrad. The interlayer film for laminated glass was thinnest at one edge and thickest at the other edge. The minimum thickness and maximum thickness were measured by observation using an optical microscope.

[0272] The interlayer film was interposed between two transparent float glass plates (1000 mm in length300 mm in width2.5 mm in thickness) to prepare a laminate. The laminate was temporarily press-bonded using a heating roll at 230 C. The temporarily press-bonded laminate was press-bonded by a roll heat method using an autoclave under a pressure of 1.2 MPa at 135 C. for 20 minutes, thereby obtaining a laminated glass (1000 mm in length300 mm in width).

(Production of Laminated Glass for Luminance Measurement)

[0273] The interlayer film (thin part) having a length of 10 cm and a width of 10 cm was cut out in a manner the center thereof was 10 cm from one edge and on the line with the minimum distance from the one edge to the other edge. The resulting interlayer film (thin part) was interposed between two transparent float glass plates (5 cm in length5 cm in width2.5 mm in thickness) to prepare a laminate. The laminate was temporarily press-bonded using a heating roll at 230 C. The temporarily press-bonded laminate was press-bonded by a roll heat method using an autoclave under a pressure of 1.2 MPa at 135 C. for 20 minutes, thereby obtaining a laminated glass for luminance measurement (5 cm in length5 cm in width).

Examples 40 to 44, and Comparative Examples 16 and 17

[0274] An interlayer film for laminated glass and a laminated glass were produced as in Example 39, except that the following items were changed as shown in Table 10 or 11: type of polyvinyl butyral resin, type of light-emitting particles, the amount of light-emitting particles, the amount of the plasticizer, the minimum thickness of the first resin layer, the maximum thickness of the first resin layer, the minimum thickness of the sound-insulating layer, the maximum thickness of the sound-insulating layer, the minimum thickness of the second resin layer, the maximum thickness of the second resin layer, the minimum thickness of the light-emitting layer, the maximum thickness of the light-emitting layer, the minimum thickness of the entire interlayer film, the maximum thickness of the entire interlayer film, and the wedge angle .

[0275] The above production of an interlayer film for laminated glass, a laminated glass, and a laminated glass for luminance measurement was performed as in Example 39, except that: the amounts of sodium chloride, potassium chloride, and magnesium chloride in the resin composition for light-emitting layers were changed so that the resulting light-emitting layer contained sodium, potassium, and magnesium in amounts shown in Table 10 or 11; and the europium complex shown in Table 10 or 11 was used.

(Evaluation)

[0276] The interlayer films for laminated glass and laminated glasses obtained in the examples and comparative examples were evaluated by the methods below. Tables 9 to 11 show the results.

(1) Measurement of the Amounts of Metals in Light-Emitting Layer, Shape-Adjusting Layer, First Resin Layer, Second Resin Layer, and Sound Insulating Layer

[0277] The resin composition prepared for producing the interlayer film for laminated glass was extruded with an extruder to prepare a light-emitting layer and an adhesive layer each having a single layer structure as samples for measuring the metal contents thereof.

[0278] The metal contents of the light-emitting layer, shape-adjusting layer, first resin layer, second resin layer, and sound insulating layer were measured with an ICP emission spectrometer (ICPE-9000) available from Shimadzu Corporation. The specific procedure of the measurement is as follows. An amount of 0.3 g of light-emitting layer as a sample was put in an insert container together with 6 mg of nitric acid. Separately, 6 mg of ultrapure water and 1 mg of hydrogen peroxide were put in a dissolution vessel. The insert container was placed in the dissolution vessel, and the vessel was capped.

[0279] The dissolution vessel was heated at 200 C. for 15 minutes using a microwave sample digestion system ETHOS One available from Milestone General K.K. Subsequently, the content of the insert container was diluted with ultrapure water with a resistivity of 18.2 M-cm at 25 C. to prepare a test solution. The metal contents of the test solution were analyzed in a closed system using an ICP emission spectrometer (ICPE-9000) available from Shimadzu Corporation. The amounts of metals in the light-emitting layer and adhesive layer were calculated from the determined metal contents.

(2) Evaluation of Initial Light-Emitting Properties

[0280] The laminated glasses for luminance measurement were irradiated with light at an entire face in a dark room. The light was emitted from a high power xenon light source (REX-250 available from Asahi Spectra Co., Ltd, irradiation wavelength: 405 nm) located 10 cm away from the face of the laminated glass in the perpendicular direction. The luminance at 45 degrees to the face of the laminated glass irradiated with light was measured with a luminance meter (SR-3AR available from Topcon Technohouse Corporation) disposed at a minimum distance of 35 cm away from the face of the laminated glass on the side at which the light was emitted.

(Evaluation of Double Image)

[0281] The laminated glasses obtained in the examples and comparative examples (1000 mm in length300 mm in width) were each placed at the windshield position. Image information from a display unit disposed below the laminated glass was reflected on the laminated glass. Whether double image phenomenon occurred or not was observed with eyes from a predetermined position. The laminated glasses causing no double image phenomenon were evaluated as (good), while the laminated glasses causing double image phenomenon were evaluated as x (poor).

TABLE-US-00009 TABLE 9 Comparative Comparative Example 35 Example 36 Example 37 Example 38 Example 14 Example 15 Composition Light- Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 PVB1 PVB1 emitting phr 100 100 100 100 100 100 layer Plasticizer phr 40 40 40 40 40 40 (3GO) Eu complex Structure Eu(HFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 Tb(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 phen phen phen phen phen phen phr 0.5 0.5 0.5 0.5 0.5 0.5 Metal Na 5 5 5 5 5 5 contents K 5 5 5 5 5 5 (ppm) Mg 0 30 0 30 50 50 Total 10 40 10 40 60 60 Shape- Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 PVB1 PVB1 adjusting phr 100 100 100 100 100 100 layer Plasticizer phr 40 40 40 40 40 40 (3 GO) Metal Na 5 5 5 5 5 5 contents K 5 5 5 5 5 5 (ppm) Mg 40 40 40 40 40 40 Total 50 50 50 50 50 50 Shape Light- Minimum m 100 100 100 100 100 100 emitting thickness layer Maximum m 200 200 200 200 200 200 thickness Thickness Minimum m 800 800 800 800 800 800 etc. of thickness interlayer Maximum m 1250 1250 1250 1250 1250 1250 film thickness Wedge mrad 0.45 0.45 0.45 0.45 0.45 0.45 angle Initial light-emitting properties 71 52 148 133 11 14 Evaluation of occurrence of double image

TABLE-US-00010 TABLE 10 Example 39 Example 40 Example 41 Example 42 Composition First Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 resin phr 100 100 100 100 layer Plasticizer phr 40 40 40 40 (3GO) Metal Na 5 5 5 5 contents K 5 5 5 5 (ppm) Mg 40 40 40 40 Total 50 50 50 50 Sound Resin (PVB) Type PVB2 PVB2 PVB2 PVB2 insulating phr 100 100 100 100 layer Plasticizer phr 60 60 60 60 (3GO) Metal Na 20 20 20 20 contents K 20 20 20 20 (ppm) Mg 0 0 0 0 Total 40 40 40 40 Second Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 resin phr 100 100 100 100 layer Plasticizer phr 40 40 40 40 (3GO) Metal Na 5 5 5 5 contents K 5 5 5 5 (ppm) Mg 40 40 40 40 Total 50 50 50 50 Light- Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 emitting phr 100 100 100 100 layer Plasticizer phr 40 40 40 40 (3GO) Eu complex Structure Eu(HFA).sub.3 Eu(HFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 phen phen phen phen phr 0.2 0.2 0.2 0.2 Metal Na 5 5 5 5 contents K 5 5 5 5 (ppm) Mg 0 30 40 0 Total 10 40 50 10 Shape Structure of First resin First resin First resin First resin interlayer layer/Sound layer/Sound layer/Sound layer/Sound film insulating layer/ insulating layer/ insulating layer/ insulating layer/ Second resin Second resin Second resin Second resin layer/Light- layer/Light- layer/Light- layer/Light- emitting layer emitting layer emitting layer emitting layer First Minimum m 350 350 350 350 resin thickness layer Maximum m 525 525 525 525 thickness Sound Minimum m 100 100 100 100 insulating thickness layer Maximum m 200 200 200 200 thickness Second Minimum m 350 350 350 350 resin thickness layer Maximum m 525 525 525 525 thickness Light- Thickness m 760 760 760 760 emitting layer Thickness Minimum m 1560 1560 1560 1560 etc. of thickness interlayer Maximum m 2010 2010 2010 2010 film thickness Wedge mrad 0.45 0.45 0.45 0.45 angle Initial light-emitting properties 235 86 75 540 Evaluation of occurrence of double image

TABLE-US-00011 TABLE 11 Comparative Comparative Example 43 Example 44 Example 16 Example 17 Composition First Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 resin phr 100 100 100 100 layer Plasticizer phr 40 40 40 40 (3GO) Metal Na 5 5 5 5 contents K 5 5 5 5 (ppm) Mg 40 40 40 40 Total 50 50 50 50 Sound Resin (PVB) Type PVB2 PVB2 PVB2 PVB2 insulating phr 100 100 100 100 layer Plasticizer phr 60 60 60 60 (3GO) Metal Na 20 20 20 20 contents K 20 20 20 20 (ppm) Mg 0 0 0 0 Total 40 40 40 40 Second Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 resin phr 100 100 100 100 layer Plasticizer phr 40 40 40 40 (3GO) Metal Na 5 5 5 5 contents K 5 5 5 5 (ppm) Mg 40 40 40 40 Total 50 50 50 50 Light- Resin (PVB) Type PVB1 PVB1 PVB1 PVB1 emitting phr 100 100 100 100 layer Plasticizer phr 40 40 40 40 (3GO) Eu complex Structure Tb(TFA).sub.3 Tb(TFA).sub.3 Eu(HFA).sub.3 Tb(TFA).sub.3 phen phen phen phen phr 0.2 0.2 0.2 0.2 Metal Na 5 5 5 5 contents K 5 5 5 5 (ppm) Mg 30 40 50 50 Total 40 50 60 60 Shape Structure of First resin First resin First resin First resin interlayer layer/Sound layer/Sound layer/Sound layer/Sound film insulating layer/ insulating layer/ insulating layer/ insulating layer/ Second resin Second resin Second resin Second resin layer/Light- layer/Light- layer/Llght- layer/Light- emitting layer emitting layer emitting fayer emitting layer First Minimum m 350 350 350 350 resin thickness layer Maximum m 525 525 525 525 thickness Sound Minimum m 100 100 100 100 insulating thickness layer Maximum m 200 200 200 200 thickness Second Minimum m 350 350 350 350 resin thickness layer Maximum m 525 525 525 525 thickness Light- Thickness m 760 760 760 760 emitting layer Thickness Minimum m 1560 1560 1560 1560 etc. of thickness interlayer Maximum m 2010 2010 2010 2010 film thickness Wedge mrad 0.45 0.45 0.45 0.45 angle Initial light-emitting properties 155 120 12 38 Evaluation of occurrence of double image

INDUSTRIAL APPLICABILITY

[0282] The present invention can provide an interlayer film for laminated glass capable of displaying images with a high luminous intensity when irradiated with a light beam, and a laminated glass including the interlayer film for laminated glass.

REFERENCE SIGNS LIST

[0283] 1: interlayer film for laminated glass [0284] 11: light-emitting layer [0285] 12: shape-adjusting layer [0286] 2: interlayer film for laminated glass [0287] 21: light-emitting layer [0288] 22: shape-adjusting layer [0289] 23: shape-adjusting layer [0290] 3: interlayer film for laminated glass [0291] 31: light-emitting layer [0292] 32: shape-adjusting layer [0293] 33: shape-adjusting layer [0294] 4: interlayer film for laminated glass [0295] 41: light-emitting layer [0296] 42: adhesive layer [0297] 5: interlayer film for laminated glass [0298] 51: light-emitting layer [0299] 52: adhesive layer [0300] 53: adhesive layer [0301] 6: interlayer film for laminated glass [0302] 61: light-emitting layer [0303] 62: adhesive layer [0304] 63: adhesive layer