JPH06240146A - Heat radiation insulating material - Google Patents

Abstract

PURPOSE:To obtain a heat radiation insulating material consisting of a transparent resin containing a specific phthalocyanine compound, excellent in compatibility with resins and light resistance and useful for windows of vehicles, ceiling windows, ceiling dooms, sun glasses, protecting spectacles, etc. CONSTITUTION:0.0005-0.1 pts.wt. phthalocyanine compound expressed by formula I {X is the formula SR<1> (R<1> is 1-20C alkyl), the formula OR<2> (R<2> is 1-20C alkyl or substitutive phenyl); Y is formula II [Z is l-8C alkyl, 1-8C alkoxy or halogen; (b) is integer of 0-5]; (a) is integer of 2-3; M is nonmetal, metal, metal oxide or metal halide} is added to 100 pts.wt. transparent resin such as polycarbonate resin, poly(meth)acrylic resin, polyethylene resin, polystyrene resin and vinyl chloride resin and the blend is formed into a sheet having 2mm thickness by T die extruder to provide the objective heat radiation insulating material for windows of vehicles, ceiling windows, ceiling dooms, sun glasses and protecting spectacles, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat ray shielding material which absorbs near infrared rays. Specifically, the present invention is excellent in near-infrared absorbing ability, excellent in compatibility with a resin, and made of a resin containing a novel phthalocyanine compound excellent in light resistance, and has a relatively good transmission of visible light and a heat ray shielding effect. Because it ’s excellent
Windows of buildings or vehicles, ceiling windows, doors, car garages,
It can be used as a resin plate, sheet or film which is semi-transparent or transparent and has a purpose of shielding heat rays, such as a ceiling dome, a greenhouse for greenhouses, sunglasses or protective glasses.

[0002]

2. Description of the Related Art In recent years, various uses of a heat ray shielding plate which absorbs near infrared rays have been proposed, and there is a strong demand for a better performance. The main uses are as follows.

Conventionally, materials such as methacrylic resin and polycarbonate resin are used for so-called glazing applications such as windows of buildings or vehicles, ceiling windows, doors or ceiling domes because they have excellent transparency and weather resistance. However, since the heat ray transmittance in sunlight is high, there is a drawback that the internal temperature rises remarkably when exposed to direct sunlight. For these reasons, there is a demand for a device that can suppress an increase in indoor temperature while sufficiently incorporating visible light.

At present, greenhouses and vinyl greenhouses are widely used in plant cultivation for the purpose of improving the harvest content of agricultural products or changing the harvest time. One of the problems in these is to prevent the indoor temperature from rising, especially in summer. Further, it is well known that light in the near infrared region influences the regulation of plant growth, and the purpose of the regulation is to add a near infrared absorber.
For these reasons, an effective heat ray shielding film is desired without substantially blocking the transmission of visible light necessary for plant growth.

At present, near-infrared rays are often used to drive or stop electric products such as magnetic tapes, but it is necessary to shield them from external near-infrared rays. Has been requested.

The infrared rays contained in the sunlight or the infrared rays contained in the light emitted during computer terminal display or welding are harmful to human eyes. Therefore, there is a demand for sunglasses, general spectacle contact lenses, protective spectacles, etc. having a heat ray shielding effect for the purpose of protecting human eyes.

Thus, conventionally, several proposals have been made as heat ray shielding plates. As the resin used in that case, transparent polycarbonate resin, acrylic resin, vinyl chloride resin or the like is used according to the purpose.
On the other hand, as an additive for shielding heat rays, for example, many dyes / pigments having absorption in the near infrared region are known, but those using them are also proposed. However, all of them have a drawback that they have poor absorption in the visible region because they have strong absorption.

In order to solve these problems, for example, Japanese Patent Publication No. Sho 62
No. 5190 proposes a method of adding a dye having a small absorption in the visible region, but it has to be added in a large amount in order to obtain a heat ray shielding effect due to its poor absorption of near infrared rays. In addition, there is a problem that the transmittance of visible light is lowered and the transparency is impaired.

Further, JP-A-51-135886, JP-A-61-80106, and JP-A-62-903 propose a method of adding a pigment having an absorption in the near infrared region, but it is dissolved. It has poor uniformity and poor compatibility with the resin, resulting in a problem of uniformity, which limits its use. Further, Japanese Patent Laid-Open No. 63-106735 and the like propose a mixture of inorganic pigments, which has a heat ray shielding effect but does not transmit visible light at all, and thus its use is limited. Further, JP-A-1-161036 and JP-A-3-227366 propose methods for incorporating tungsten hexachloride and the like. Although they have a good heat ray absorbing effect, they have the drawback that they have poor light stability, and also have the problem that their fields of use are limited because they are expensive.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances of the prior art. That is,
An object of the present invention is to provide an inexpensive heat ray shielding material that selectively absorbs light in the near infrared region and can effectively shield heat from sunlight while maintaining a relatively high transmittance in the visible region. To provide. Moreover, it is to provide a material which can be widely used in various fields of application by being composed entirely of inexpensive organic materials.

[0011]

Means for Solving the Problems The inventors of the present invention have completed the invention of the present application as a result of extensive studies to achieve the above object. That is, the present invention has the following general formula (I):

[0012]

[Chemical 3]

(In the formula, X is independently SR ¹ or O
Represents R ² ; Y is

[0014]

[Chemical 4]

R ¹ represents an alkyl group having 1 to 20 carbon atoms; R ² represents an alkyl group having 1 to 20 carbon atoms or a phenyl group which can be substituted; Z represents 1 carbon atom.
~ Represents an alkyl group, an alkoxy group having 1 to 8 carbon atoms or a halogen atom; a is an integer of 2 to 3;
b is an integer of 0 to 5; M represents a metal-free metal, a metal, a metal oxide, or a metal halide), and is a heat ray shielding material made of a resin containing a phthalocyanine compound.

According to the present invention, there is provided a heat ray shielding material comprising a transparent resin containing a phthalocyanine having a specific structure, which has excellent selective absorption ability in the near infrared region and excellent compatibility with the resin. A material excellent in the heat ray shielding effect without being damaged is provided.

[0017]

DETAILED DESCRIPTION OF THE INVENTION In the general formula (I) of the present invention, examples of the halogen atom include a fluorine atom, a chlorine atom and a bromine atom, and among these halogen atoms, a fluorine atom is preferable. The use of the fluorine atom is effective in improving the compatibility with the resin.

The alkyl group having 1 to 8 carbon atoms means methyl group, ethyl group, n-propyl group, isopropyl group, n
-Butyl group, isobutyl group, tert-butyl group, linear or branched pentyl group, hexyl group, heptyl group and octyl group. Also, the number of carbon atoms is 1-2
In addition to the above alkyl groups, the 0 alkyl group includes nonyl group, decyl group, dodecyl group, undecyl group, tridecyl group, tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, nonidecyl group and eicosyl group. Can be mentioned.

The phenyl group having a substituent is a phenyl group in which 1 to 3 carbon atoms are substituted with an alkyl group,
Examples thereof include a phenyl group substituted by 1 to 2 with an alkoxy group having 1 to 4 carbon atoms, or a phenyl group substituted by 1 to 5 with a halogen element such as chlorine and fluorine.

The central metal (M) is, for example, copper, zinc, cobalt, nickel, iron, vanadium, titanium, indium,
Examples of the metal halide include tin and the like, and examples of the metal halide include fluoride, chloride, bromide, and iodide. M being metal-free means that M is an atom other than metal, for example, two hydrogen atoms. As these central metals, copper, zinc cobalt, nickel, iron, vanadyl, titanyl, chloroindium, and dichlorotin are preferably used. It is particularly preferable to use copper, zinc, cobalt, vanadyl, or dichlorotin.

In the phthalocyanine compound represented by the above general formula (I) of the present invention, a phenylthio group substitutable by an alkyl group, an alkoxy group or a halogen is an essential component. It is preferable to introduce ~ 12 pieces. A substituent selected from the substitutable alkylthio group represented by SR ¹ and the substitutable phenyloxy group represented by OR ² or the substitutable alkyloxy group is introduced into the residual position.

Specific examples of the phthalocyanine skeleton of the general formula (I) are as follows: 4-tetrakis (butoxy) -3,5,6-dodecaquis (phenylthio) phthalocyanine Abbreviation: Pc (BuO) ₄ (PhS) ₁₂ 4- tetrakis (butoxy) -3,5,6 Dodekakisu (o-methylphenylthio) phthalocyanine _{abbreviation: Pc (BuO) 4 (o} -TolS) 12 · 4- tetrakis (butoxy) -3,5,6 Dodekakisu (p- methylphenyl thio) phthalocyanine _{abbreviation: Pc (BuO) 4 (p} -TolS) 12 · 4- tetrakis (butoxy) -3,5,6 Dodekakisu (p- methoxyphenyl thio) phthalocyanine abbreviation: Pc (BuO) _{4 (p-MeOPhS) 12 ·} 4- tetrakis (butoxy) -3,5,6 Dodekakisu (2,6 over dimethylphenylene Thio) phthalocyanine _{Abbreviation: Pc (BuO) 4 (2,6} -TolS) 12 · 4- tetrakis (butoxy) -3,5,6 Dodekakisu (p- fluorophenylthio) phthalocyanine Abbreviation: Pc (BuO) ₄ (p -FPhS) ₁₂ · 4- tetrakis (butoxy) -3,5,6 Dodekakisu (2,4-difluorophenyl thio) phthalocyanine _{abbreviation: Pc (BuO) 4 (2,4} -FPhS) 12 · 4- tetrakis (butoxy ) -3,5,6 Dodekakisu (2,3,5,6-tetrafluoro-phenylthio) phthalocyanine _{abbreviation: Pc (BuO) 4 (F4PhS} ) 12 · 4- tetrakis (BuO) -3,5,6 Dodekakisu (o-chlorophenylthio) phthalocyanine _{abbreviation: Pc (BuO) 4 (o} -ClPhS) 12 · 4- tetrakis (butoxy) -3,5, - Dodekakisu (p- chlorophenylthio) phthalocyanine _{Abbreviation: Pc (BuO) 4 (p} -ClPhS) 12 · 4- tetrakis (butoxy) -3,5,6 Dodekakisu (2,4-dichlorophenylthio) phthalocyanine Abbreviation: Pc ( _{BuO) 4 (2,4-ClPhS)} 12 · 4- tetrakis (isopropoxy) -3,5,6 Dodekakisu (phenylthio phthalocyanine _{abbreviation: Pc (isoPrO) 4 (PhS} ) 12 · 4- tetrakis (isobutoxy) - 3,5,6 Dodekakisu (phenylthio) phthalocyanine _{abbreviation: Pc (isoBuO) 4 (PhS} ) 12 · 4- tetrakis (tert- butoxy) -3,5,6
- Dodekakisu (phenylthio) phthalocyanine _{Abbreviation: Pc (tertBuO) 4 (PhS} ) 12 · 4- tetrakis (hexyloxy) -3,5,6 Dodekakisu (phenylthio phthalocyanine _{Abbreviation: Pc (HeO) 4 (PhS} ) 12 · 4 -Tetrakis (cyclohexyloxy) -3,5
6- Dodekakisu (phenylthio) phthalocyanine Abbreviation: Pc (cy over _{HeO) 4 (PhS) 12 ·} 4- tetrakis (Okishiruokishi) -3,5,6 Dodekakisu (phenylthio phthalocyanine Abbreviation: Pc (Octo) ₄ (PhS) _12-4- tetrakis (phenoxy) -3,5,6 Dodekakisu (phenylthio) phthalocyanine abbreviation: Pc (PhO) ₄ (PhS) _12-4- tetrakis (o-methylstyrene phenoxy) -3,5,
6- Dodekakisu (phenylthio) phthalocyanine Abbreviation: Pc (o over _{MePhO) 4 (PhS) 12 ·} 4- tetrakis (p-methylstyrene phenoxy) -3,5,
6- Dodekakisu (phenylthio) phthalocyanine Abbreviation: Pc (p over _{MePhO) 4 (PhS) 12 ·} 4- tetrakis (2,6 over dimethylphenoxy) -
3,5,6 Dodekakisu (phenylthio) phthalocyanine Abbreviation: Pc (2, 6 over _{MePhO) 4 (PhS) 12 ·} 4- tetrakis (p- methoxyphenoxy) -3,
5,6 Dodekakisu (phenylthio) phthalocyanine _{Abbreviation: Pc (p-MeOPhO) 4} (PhS) 12 · 4- tetrakis (o-methoxyphenoxy) -3,
5,6 Dodekakisu (phenylthio) phthalocyanine _{Abbreviation: Pc (o-MeOPhO) 4} (PhS) 12 · 4- tetrakis (p- ethoxyphenoxy) -3,
5,6 Dodekakisu (phenylthio) phthalocyanine _{Abbreviation: Pc (p-EtOPhO) 4} (PhS) 12 · 4- tetrakis (p- butoxyphenoxy) -3,
5,6 Dodekakisu (phenylthio) phthalocyanine _{Abbreviation: Pc (p-BuOPhO) 4} (PhS) 12 · 4- tetrakis (p- chlorophenoxy) -3,5,
6- Dodekakisu (phenylthio) phthalocyanine _{Abbreviation: Pc (p-ClPhO) 4} (PhS) 12 · 4- tetrakis (2,3,5,6-fluorophenoxy) -3,5,6 Dodekakisu (phenylthio)
Phthalocyanine _{Abbreviation: Pc (F4PhO) 4 (PhS} ) 12 · 4- tetrakis (phenoxy) -3,5,6 Dodekakisu (o-methylstyrene phenylthio) phthalocyanine Abbreviation: Pc (PhO) ₄ (o over MePhS) ₁₂ · 4 - tetrakis (phenoxy) -3,5,6 Dodekakisu (p-methylstyrene phenylthio) phthalocyanine abbreviation: Pc (PhO) ₄ (p over MePhS) ₁₂ · 4- tetrakis (phenoxy) -3,5,6 Dodekakisu ( p over methoxyphenylthio) phthalocyanine abbreviation: Pc (PhO) ₄ (p over MeOPhS) ₁₂ · 4- tetrakis (phenoxy) -3,5,6 Dodekakisu (p over fluorophenylthio) phthalocyanine abbreviation: Pc (PhO) ₄ (p over FPhS) ₁₂ · 4- tetrakis (phenoxy) -3,5,6 Dodekakisu (p over click Rofeniruchio) phthalocyanine abbreviation: Pc (PhO) ₄ (p over ClPhS) ₁₂ · 4,5- octakis (butyloxy) -3,6-octakis (phenylthio) phthalocyanine _{abbreviation: Pc (BuO) 8 (PhS} ) 8 · 4,5 - octakis (phenyloxy) -3,6-octakis (phenylthio phthalocyanine _{abbreviation: Pc (PhO) 8 (PhS} ) 8 · 4,5- octakis (butylthio) -3,6-octakis (phenylthio) phthalocyanine abbreviation: Pc ( _{BuS) 8 (PhS) 8 ·} 4,5- octakis (isopropyl thio) -3,6
Octakis (phenylthio) phthalocyanine _{Abbreviation: Pc (isoPrS) 8 (PhS} ) 8 · 4,5- octakis (butylthio) -3,6-octakis (phenylthio phthalocyanine _{Abbreviation: Pc (isoBuS) 8 (PhS} ) 8 · 4, 5-octakis (tert-butylthio) -3,
6-octakis (phenylthio) phthalocyanine _{abbreviation: Pc (tertBuS) 8 (PhS} ) 8 · 4,5- octakis (hexylthio) -3,6-octakis (phenylthio) phthalocyanine _{abbreviation: Pc (HeS) 8 (PhS} ) 8 · 4 5- octakis (hexylthio) -3,6-octakis (p-methylstyrene phenylthio) phthalocyanine _{abbreviation: Pc (HeS) 8 (p} -MePhS) 8 · 4,5- octakis (cyclohexylthio) 3,6
- octakis (phenylthio) phthalocyanine abbreviation: Pc (cy over _{HeS) 8 (PhS) 8 ·} 4,5- octakis (octylthio) -3,6-octakis (phenylthio) phthalocyanine _{abbreviation: Pc (OctS) 8 (PhS} ) 8 · 4,5 octakis (butylthio) -3,6-octakis (o-methylphenylthio) phthalocyanine _{abbreviation: Pc (BuS) 8 (o} -MePhS) 8 · 4,5- octakis (butylthio) -3,6-octakis (p- methylphenyl thio) phthalocyanine _{abbreviation: Pc (BuS) 8 (p} -MePhS) 8 · 4,5- octakis (butylthio) -3,6-octakis (p- methoxyphenyl thio) phthalocyanine abbreviation: Pc (BuS) _{8 (p-MeOPhS) 8 ·} 4,5- octakis (butylthio) -3,6-octa Scan (p- chlorophenyl thio) phthalocyanine _{Abbreviation: Pc (BuS) 8 (p} -ClPhS) 8 · 4,5- octakis (butylthio) -3,6-octakis (p- fluorophenylthio) phthalocyanine Abbreviation: Pc (BuS ) ₈ (p-FPhS) _{8 and the} like. In addition, the transparent resin of the present invention can be effectively used in the present invention even if the above-mentioned phthalocyanine compound in which a part of the functional groups substituted in the 3 and 6-positions are substituted with a fluorine atom. There is no particular limitation as long as it is a resin that is transparent and does not have large absorption / scattering.
Specific examples thereof include polycarbonate resins, acrylic resins such as methyl methacrylate, polyvinyl resins such as polystyrene, polyvinyl chloride and polyvinylidene chloride, polyolefin resins such as polyethylene and polypropylene, polyvinyl acetate such as polybutyral resin and polyvinyl acetate. Examples of the resin include a series resin, a polyester resin, a polyamide resin, and the like, as long as they are substantially transparent, not only the above-mentioned one type of resin but also a blend of two or more types of resins can be used. It is also possible to use the above resin sandwiched in transparent glass.

Among these transparent resins, polycarbonate resin, (meth) acrylic resin, polyethylene resin, polystyrene resin or polyvinyl chloride is preferable in view of practical use, and particularly, polycarbonate resin, methacrylic resin or poly (vinyl chloride) resin is preferable. Vinyl chloride is preferred.

The polycarbonate resin is produced by reacting a dihydric phenol and a carbonate precursor by a solution method or a melting method. The following are typical examples of the dihydric phenol.

2,2-bis (4-hydroxyphenyl)
Propane [bisphenol A], 1,1-bis (4-hydroxyphenyl) ethane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 2,2-bis (4-hydroxy-3,5-dimethylphenyl) propane,
2,2-bis (4-hydroxy-3,5-dibromophenyl) propane, 2,2-bis (4-hydroxy-3-methylphenyl) propane, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) sulfone and the like. The preferred dihydric phenol is bis (4
-Hydroxyphenyl) alkane-based, especially bisphenol-based.

The acrylic resin is methyl methacrylate alone or a polymerizable unsaturated monomer mixture containing 50% or more of methyl methacrylate or a copolymer thereof. Examples of the polymerizable unsaturated monomer copolymerizable with methyl methacrylate include the following. Methyl acrylate, ethyl (meth) acrylate (meaning methyl acrylate or methyl methacrylate; the same applies below), butyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, (meth ) Methoxyethyl acrylate, ethoxyethyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, N, N-diethylaminoethyl (meth) acrylate (meth)
Glycidyl acrylate, tribromophenyl (meth) acrylate, tetrahydroxyfurfuryl (meth) acrylate, ethylene glycol di (meth) acrylate,
Triethylene glycol di (meth) acrylate, tripropylene glycol di (meth) acrylate, trimethylolethane di (meth) acrylate, neopentyl glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, pentaerythritol tetra ( (Meth) acrylate and the like.

As the vinyl chloride resin, not only a vinyl chloride monomer-only polymer but also a vinyl chloride-based copolymer can be used. Examples of the monomer that can be copolymerized with vinyl chloride include vinylidene chloride, ethylene, propylene, acrylonitrile, vinyl acetate, maleic acid, itaconic acid, acrylic acid, and methacrylic acid.

In carrying out the present invention, various additives used in the production of ordinary transparent resin materials may be added. Examples of the additive include a colorant, a polymerization regulator, an antioxidant, an ultraviolet absorber, a flame retardant, a plasticizer or a release agent.

Examples of the method of mixing and containing the phthalocyanine compound in the transparent resin include extrusion molding, injection molding, cast polymerization, press molding, calender molding, cast film formation and the like.

The amount of the phthalocyanine compound used in the present invention can be changed depending on the setting of the transmittance of the target heat ray shielding plate in the visible and near infrared regions and the thickness of the plate, but it is usually 100% as a transparent resin. 0.0005 to 0.1 part by weight, preferably 0.00
It is 1 to 0.05 parts by weight.

[0031]

EXAMPLES The present invention will be described in more detail below with reference to examples.

(Examples 1 to 10) Polycarbonate resin 100 produced by Teijin Kasei (Panlite 1285)
The amount of the phthalocyanine compound shown in Table 1 was added to parts by weight, and a sheet having a thickness of 2 mm was formed with a T-die extruder. The visible light transmittance and the heat ray transmittance of the obtained sheet were measured.

The transmission spectrum and the transmittance of the obtained heat ray shielding plate were measured by a spectrophotometer (manufactured by Shimadzu Corporation: UV-31).
00). In addition, the visible light transmittance (4
00 nm to 800 nm) and heat ray transmittance (800 n
The value of (m to 1800 nm) was determined according to the standard of JIS R 3106. However, the heat ray transmittance is JIS R3
800 nm to 1800 n in solar radiation transmittance in 106
It was calculated only from m. The results are shown in Table 1.

(Examples 11 to 20) 100 parts by weight of methyl methacrylate, 0.2 part of azobisisobutylnitrile, a releasing agent (ZEL
EC UN: manufactured by Dyupon) and 0.1 parts of the phthalocyanine compound shown in Table 2 were added and the mixture was immersed in a 65 ° C water bath for 14 hours. Then, it was heated in an oven at 90 ° C. for 1 hour to complete the polymerization. After the completion of the polymerization, the colored transparent resin plate having a thickness of 3 mm was peeled off from the glass.
The visible light transmittance and the heat ray transmittance of the obtained plate were measured. The results are shown in Table 2.

Comparative Example 1 The results shown in Table 1 were obtained in the same manner as in Example 1, except that the phthalocyanine compound was not added in Example 1 and the procedure of Example 1 was repeated.

[0036]

[Table 1]

Comparative Example 2 The results shown in Table 2 were obtained in the same manner as in Example 11 except that the phthalocyanine compound was not added in Example 11 and the same operation as in Example 11 was carried out.

[0038]

[Table 2]

[0039]

As can be seen by comparing the results of the visible light transmittance and the heat ray transmittance obtained in this Example with those obtained in the Comparative Example in which the phthalocyanine compound is not added, all of the results are shown. The visible light transmittance does not decrease so much, but the heat ray transmittance decreases. That is, heat rays are efficiently absorbed and blocked without hindering the transmission of visible rays.
Therefore, it can be seen that the heat-shielding plate of the present invention has transparency and an excellent heat-shielding effect.

Also, in the weather resistance test, it was found that the heat ray shielding plate of the present invention is sufficiently practical. Furthermore, the phthalocyanine compound used in the present invention has high solubility in organic solvents, high compatibility with resins, high light resistance, and high heat resistance, and therefore can be applied to various molding methods and can be uniformly applied to resins. The heat ray-shielding plate of the present invention using the phthalocyanine compound can be used in a wide range of fields because of its good heat resistance.

Claims (4)

[Claims] 1. The following general formula (I): (However, in the formula, X independently represents SR ¹ or OR ² ; Y
Is R ¹ represents an alkyl group having 1 to 20 carbon atoms; R ² represents an alkyl group having 1 to 20 carbon atoms or a substitutable phenyl group; Z represents 1 to 8 carbon atoms. Represents an alkyl group, an alkoxy group having 1 to 8 carbon atoms or a halogen atom; a is an integer of 2 to 3; b is an integer of 0 to 5; M is a metal-free metal, a metal oxide, or A heat ray shielding material comprising a resin containing a phthalocyanine compound represented by a metal halide). 2. The heat ray shielding material according to claim 1, wherein the content of the phthalocyanine compound is in the range of 0.0005 to 0.1 part by weight with respect to 100 parts by weight of the resin. 3. The heat ray shielding material according to claim 1, wherein the resin is a transparent resin. 4. The transparent resin is a polycarbonate resin,
The heat ray shielding material according to claim 3, which is a poly (meth) acrylic resin, a polyethylene resin, a polystyrene resin or a vinyl chloride resin.