JP5932552B2 - Heat-shielding polycarbonate resin housing for outdoor installation - Google Patents

Description

  The present invention relates to a polycarbonate resin casing for outdoor installation obtained by molding a thermoplastic resin composition having excellent heat shielding properties.

  Thermoplastic resins are widely used in all industries because of their ease of production and molding. In particular, aromatic polycarbonate-based resin compositions generally have excellent heat resistance and impact resistance, and are widely used in electronic devices, machines, automobiles, and the like. Particularly in recent years, resin enclosures used outdoors, such as smart grids, have become a very important issue to prevent heat from sunlight from the viewpoint of protecting internal precision equipment. ing.

  As a method for improving the heat shielding property of the resin molded product, there is a method for improving the solar reflectance in the near infrared region. In general, as a method for improving the reflectance, a method of adding titanium oxide (see Patent Documents 1 to 6) is known. However, there is no example of examining titanium oxide having a particle diameter exceeding 500 nm, and the shielding is not performed. The thermal performance was insufficient. In addition, as a method for imparting an infrared shielding function, a method of adding titanium oxide exceeding 500 nm to a thermoplastic resin (see Patent Document 7) is known. However, when applied to a polycarbonate resin, the appearance of a molded product is not good. There was a problem of enough. In addition, there is an example of adding titanium oxide to polycarbonate-polydiorganosiloxane resin to obtain high light reflectivity and not reducing flame retardancy and impact resistance. A sufficient effect cannot be expressed (see Patent Documents 8 and 9).

JP 2010-144165 A JP 2009-062418 A JP 2007-270076 A JP 2002-363302 A Japanese Patent No. 34588897 Japanese Patent No. 3424696 JP 2006-341628 A Japanese Patent No. 3390465 JP 2009-280725 A

  An object of this invention is to provide the resin housing | casing used by the outdoors excellent in heat-shielding property.

  As a result of intensive studies in view of the above-mentioned problems of the prior art, the present inventor has surface-treated polycarbonate resin and polycarbonate-polydiorganosiloxane copolymer resin with an organic substance, and has an average particle diameter of 0.5 to 5.0 μm. It has been found that a resin casing having a solar reflectance of 80% or more in the near-infrared region obtained by molding a resin composition containing the above titanium oxide has excellent heat shielding properties, and has reached the present invention.

  The present invention was surface-treated with 70 to 97 parts by weight of a resin component comprising (A) a polycarbonate-based resin (A component) and (B) a polycarbonate-polydiorganosiloxane copolymer resin (B component), and (C) an organic substance. The near-infrared region having excellent heat shielding properties obtained by molding a resin composition characterized by comprising 3 to 30 parts by weight of titanium oxide (C component) having an average particle size of 0.5 to 5.0 μm A resin casing having a solar reflectance of 80% or more is provided.

(A component: polycarbonate resin)
The polycarbonate-based resin used as the component A in the present invention is various polycarbonates that are polymerized by using other dihydric phenols in addition to the commonly used bisphenol A-type polycarbonate resins and have high heat resistance or low water absorption. Resin may be used. The polycarbonate resin may be produced by any production method, and in the case of interfacial polycondensation, a terminal stopper of a monohydric phenol is usually used. The polycarbonate resin may also be a branched polycarbonate resin obtained by polymerizing trifunctional phenols, and further a copolymer obtained by copolymerizing an aliphatic dicarboxylic acid, an aromatic dicarboxylic acid, or a divalent aliphatic or alicyclic alcohol. Polycarbonate may be used. The viscosity average molecular weight of the polycarbonate resin is preferably 13,000 to 40,000, more preferably 15,000 to 38,000. The viscosity average molecular weight (M) of the aromatic polycarbonate resin is obtained by inserting the specific viscosity (η _sp ) obtained at 20 ° C. from a solution of 0.7 g of the polycarbonate resin in 100 ml of methylene chloride into the following equation. Details of the polycarbonate resin are described in JP-A No. 2002-129003.
η _sp /c=[η]+0.45×[η] ² c (where [η] is the intrinsic viscosity)
[Η] = 1.23 × 10 ⁻⁴ M ^0.83
c = 0.7

As specific examples of various polycarbonate resins polymerized using other dihydric phenols and having high heat resistance or low water absorption, the following can be suitably exemplified.
(1) In 100 mol% of the dihydric phenol component constituting the polycarbonate, 4,4 '-(m-phenylenediisopropylidene) diphenol (hereinafter abbreviated as "BPM") component is 20 to 80 mol% (more preferable) 40 to 75 mol%, more preferably 45 to 65 mol%), and 9,9-bis (4-hydroxy-3-methylphenyl) fluorene (hereinafter abbreviated as "BCF") component is 20 to 20 mol. Copolycarbonate which is 80 mol% (more preferably 25 to 60 mol%, more preferably 35 to 55 mol%).
(2) In 100 mol% of the dihydric phenol component constituting the polycarbonate, the bisphenol A component is 10 to 95 mol% (more preferably 50 to 90 mol%, more preferably 60 to 85 mol%), And a BCF component in an amount of 5 to 90 mol% (more preferably 10 to 50 mol%, and still more preferably 15 to 40 mol%).
(3) In 100 mol% of the dihydric phenol component constituting the polycarbonate, the BPM component is 20 to 80 mol% (more preferably 40 to 75 mol%, more preferably 45 to 65 mol%), and The 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane component is 20 to 80 mol% (more preferably 25 to 60 mol%, more preferably 35 to 55 mol%). Copolycarbonate.

  These special polycarbonates may be used alone or in combination of two or more. Moreover, these can also be mixed and used for the bisphenol A type polycarbonate generally used. The production method and characteristics of these special polycarbonates are described in detail in, for example, JP-A-6-172508, JP-A-8-27370, JP-A-2001-55435, and JP-A-2002-117580. ing.

(B component: Polycarbonate-polydiorganosiloxane copolymer resin)
The polycarbonate-polydiorganosiloxane copolymer resin used as component B of the present invention is a dihydric phenol represented by the following general formula [1] and a hydroxyaryl-terminated polydiorganosiloxane represented by the following general formula [3]. It is a copolymer resin prepared by copolymerization.

[In General Formula [1], R ¹ and R ² are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, or 6 to 6 carbon atoms. 20 cycloalkyl groups, cycloalkoxy groups having 6 to 20 carbon atoms, alkenyl groups having 2 to 10 carbon atoms, aryl groups having 3 to 14 carbon atoms, aryloxy groups having 3 to 14 carbon atoms, carbon atoms Represents a group selected from the group consisting of an aralkyl group having 7 to 20 carbon atoms, an aralkyloxy group having 7 to 20 carbon atoms, a nitro group, an aldehyde group, a cyano group, and a carboxyl group. E and f are each an integer of 1 to 4, and W is a single bond or at least one group selected from the group consisting of groups represented by the following general formula [2]. . ]

[In the above general formula [2], R ¹¹ , R ¹² , R ¹³ , R ¹⁴ , R ¹⁵ , R ¹⁶ , R ¹⁷ and R ¹⁸ are each independently a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, carbon Represents a group selected from the group consisting of an aryl group having 3 to 14 atoms and an aralkyl group having 7 to 20 carbon atoms, and R ¹⁹ and R ²⁰ each independently represent a hydrogen atom, a halogen atom, or a carbon atom having 1 to 18 carbon atoms. Alkyl groups, alkoxy groups having 1 to 10 carbon atoms, cycloalkyl groups having 6 to 20 carbon atoms, cycloalkoxy groups having 6 to 20 carbon atoms, alkenyl groups having 2 to 10 carbon atoms, and 3 carbon atoms. -14 aryl group, aryloxy group having 6 to 10 carbon atoms, aralkyl group having 7 to 20 carbon atoms, aralkyloxy group having 7 to 20 carbon atoms, nitro group, aldehyde group, cyano group and It represents a group selected from the group consisting of carboxyl groups, and when there are a plurality thereof, they may be the same or different, g is an integer of 1 to 10, and h is an integer of 4 to 7. ]

[In the above general formula [3], R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ and R ⁸ are each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or a substitution having 6 to 12 carbon atoms. Or an unsubstituted aryl group, R ⁹ and R ¹⁰ are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, and p is a natural number Q is 0 or a natural number, and p + q is a natural number less than 300. X is a divalent aliphatic group having 2 to 8 carbon atoms. ]

  Examples of the dihydric phenol (I) represented by the formula [1] include 4,4′-dihydroxybiphenyl, bis (4-hydroxyphenyl) methane, 1,1-bis (4-hydroxyphenyl) ethane, 1 , 1-bis (4-hydroxyphenyl) -1-phenylethane, 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (4-hydroxy-3-methylphenyl) propane, 1,1- Bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, 2,2-bis (4-hydroxy-3,3′-biphenyl) propane, 2,2-bis (4-hydroxy-3-isopropylphenyl) ) Propane, 2,2-bis (3-tert-butyl-4-hydroxyphenyl) propane, 2,2-bis (4-hydroxyphenyl) butane, 2,2- (4-hydroxyphenyl) octane, 2,2-bis (3-bromo-4-hydroxyphenyl) propane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, 2,2-bis (3-cyclohexyl-4-hydroxyphenyl) propane, 1,1-bis (3-cyclohexyl-4-hydroxyphenyl) cyclohexane, bis (4-hydroxyphenyl) diphenylmethane, 9,9-bis (4-hydroxyphenyl) fluorene 9,9-bis (4-hydroxy-3-methylphenyl) fluorene, 1,1-bis (4-hydroxyphenyl) cyclohexane, 1,1-bis (4-hydroxyphenyl) cyclopentane, 4,4′- Dihydroxydiphenyl ether, 4,4′-dihydroxy-3,3′-dimethyldiphe Luether, 4,4′-sulfonyldiphenol, 4,4′-dihydroxydiphenyl sulfoxide, 4,4′-dihydroxydiphenyl sulfide, 2,2′-dimethyl-4,4′-sulfonyldiphenol, 4,4 '-Dihydroxy-3,3'-dimethyldiphenyl sulfoxide, 4,4'-dihydroxy-3,3'-dimethyldiphenyl sulfide, 2,2'-diphenyl-4,4'-sulfonyldiphenol, 4,4'- Dihydroxy-3,3′-diphenyldiphenyl sulfoxide, 4,4′-dihydroxy-3,3′-diphenyldiphenyl sulfide, 1,3-bis {2- (4-hydroxyphenyl) propyl} benzene, 1,4-bis {2- (4-hydroxyphenyl) propyl} benzene, 1,4-bis (4-hydroxy Phenyl) cyclohexane, 1,3-bis (4-hydroxyphenyl) cyclohexane, 4,8-bis (4-hydroxyphenyl) tricyclo [5.2.1.02,6] decane, 4,4 ′-(1, 3-adamantanediyl) diphenol and 1,3-bis (4-hydroxyphenyl) -5,7-dimethyladamantane.

  Among them, 1,1-bis (4-hydroxyphenyl) -1-phenylethane, 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (4-hydroxy-3-methylphenyl) propane, 1,1-bis (4-hydroxyphenyl) cyclohexane, 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane, 4,4′-sulfonyldiphenol, 2,2′-dimethyl- 4,4′-sulfonyldiphenol, 9,9-bis (4-hydroxy-3-methylphenyl) fluorene, 1,3-bis {2- (4-hydroxyphenyl) propyl} benzene, and 1,4-bis {2- (4-hydroxyphenyl) propyl} benzene is preferred, especially 2,2-bis (4-hydroxyphenyl) propane, 1,1-biphenyl. (4-hydroxyphenyl) cyclohexane (BPZ), 4,4'-sulfonyl diphenol, and 9,9-bis (4-hydroxy-3-methylphenyl) fluorene is preferred. Among them, 2,2-bis (4-hydroxyphenyl) propane having excellent strength and good durability is most preferable. Moreover, you may use these individually or in combination of 2 or more types.

  The hydroxyaryl-terminated polydiorganosiloxane (II) is a phenol having an olefinically unsaturated carbon-carbon bond, preferably vinylphenol, 2-allylphenol, isopropenylphenol, 2-methoxy-4-allylphenol. It is easily produced by hydrosilylation reaction at the end of a polysiloxane chain having a degree of polymerization of. Of these, (2-allylphenol) -terminated polydiorganosiloxane, (2-methoxy-4-allylphenol) -terminated polydiorganosiloxane are preferred, and (2-allylphenol) -terminated polydimethylsiloxane and (2-methoxy-) are particularly preferred. 4-Allylphenol) -terminated polydimethylsiloxane is preferred.

  Moreover, diorganosiloxane polymerization degree (p + q) of hydroxyaryl terminal polydiorganosiloxane (II) is 10-120. Below the lower limit of this range, the polydiorganosiloxane domain diameter is small and sufficient mechanical properties and durability are not exhibited. Above the upper limit of this range, the incorporation of polydiorganosiloxane units into the polycarbonate becomes uneven and the proportion of the polydiorganosiloxane units in the polymer molecule increases. Are likely to occur, and the compatibility with each other tends to decrease. As a result, the dispersion of the polydiorganosiloxane domain becomes non-uniform and appearance defects tend to occur. The degree of polymerization of the diorganosiloxane (p + q) is preferably 20 to 115, more preferably 30 to 110. In the present invention, the polydiorganosiloxane domain means a domain mainly composed of polydiorganosiloxane dispersed in a polycarbonate matrix and may contain other components. As described above, the polydiorganosiloxane domain is not necessarily composed of a single component because the structure is formed by phase separation from the polycarbonate polycarbonate.

The polydiorganosiloxane content in the total weight of the copolymer resin is preferably 0.1 to 50% by weight. The polydiorganosiloxane component content is more preferably 0.5 to 30% by weight, still more preferably 1 to 20% by weight. Above the lower limit of the preferred range, the impact resistance and flame retardancy are excellent, and below the upper limit of the preferred range, a stable appearance that is hardly affected by the molding conditions is easily obtained. Such polydiorganosiloxane polymerization degree and polydiorganosiloxane content can be calculated by ¹ H-NMR measurement.

  In this invention, hydroxyaryl terminal polydiorganosiloxane (II) may use only 1 type, and may use 2 or more types. Further, within the range not hindering the production method of the present invention, other comonomer other than the dihydric phenol (I) and hydroxyaryl-terminated polydiorganosiloxane (II) is 10% by weight or less based on the total weight of the copolymer. It can also be used in combination in the range.

  In the present invention, a chloroformate-forming compound such as divalent phenol (I) and phosgene or chloroformate of divalent phenol (I) in a mixed solution of an organic solvent insoluble in water and an aqueous alkaline solution in advance. To prepare a mixed solution of a chloroformate compound containing a chloroformate of dihydric phenol (I) and / or a carbonate oligomer of dihydric phenol (I) having a terminal chloroformate group. As the chloroformate-forming compound, phosgene is preferred.

  In producing the chloroformate compound from the dihydric phenol (I), the whole amount of the dihydric phenol (I) used in the production method of the present invention may be converted to the chloroformate compound at one time, or a part thereof may be used. A post-added monomer may be added as a reaction raw material to a subsequent interfacial polycondensation reaction. The post-added monomer is added to allow the subsequent polycondensation reaction to proceed rapidly, and it is not necessary to add it when it is not necessary.

  The method for this chloroformate compound formation reaction is not particularly limited, but usually a method of carrying out in a solvent in the presence of an acid binder is preferred. Furthermore, if desired, a small amount of an antioxidant such as sodium sulfite and hydrosulfide may be added, and it is preferable to add them.

  The use ratio of the chloroformate-forming compound may be appropriately adjusted in consideration of the stoichiometric ratio (equivalent) of the reaction. Moreover, when using the phosgene which is a suitable chloroformate formation compound, the method of blowing gasified phosgene into a reaction system can be employ | adopted suitably.

  Examples of the acid binder include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, alkali metal carbonates such as sodium carbonate and potassium carbonate, organic bases such as pyridine, and mixtures thereof. Is used.

  The use ratio of the acid binder may be appropriately determined in consideration of the stoichiometric ratio (equivalent) of the reaction as described above. Specifically, 2 equivalents or slightly more than 2 equivalents per mole of dihydric phenol (I) used for forming the chloroformate compound of dihydric phenol (I) (usually 1 mole corresponds to 2 equivalents). It is preferable to use an acid binder.

  As said solvent, what is necessary is just to use a solvent inert to various reaction, such as what is used for manufacture of a well-known polycarbonate, individually or as a mixed solvent. Representative examples include hydrocarbon solvents such as xylene, and halogenated hydrocarbon solvents such as methylene chloride and chlorobenzene. In particular, a halogenated hydrocarbon solvent such as methylene chloride is preferably used.

  The molar ratio of the organic solvent insoluble in water is preferably 8 moles or more, more preferably 10 moles or more, still more preferably 12 moles or more, particularly preferably 14 moles or more, per mole of dihydric phenol (I). The upper limit is not particularly limited, but 50 mol or less is sufficient from the viewpoint of the size and cost of the apparatus. By setting the molar ratio of the organic solvent to the dihydric phenol (I) within such a range, it becomes easier to control the average size and normalized dispersion of the polydiorganosiloxane domain to appropriate values.

The pressure in the formation reaction of the chloroformate compound is not particularly limited and may be any of normal pressure, pressurization, or reduced pressure, but it is usually advantageous to carry out the reaction under normal pressure. The reaction temperature is selected from the range of -20 to 50 ° C, and in many cases, heat is generated with the reaction, so it is desirable to cool with water or ice. Although the reaction time depends on other conditions and cannot be defined unconditionally, it is usually carried out in 0.2 to 10 hours.
As the pH range in the formation reaction of the chloroformate compound, known interfacial reaction conditions can be used, and the pH is usually adjusted to 10 or more.

  In the present invention, after preparing a mixed solution of the chloroformate of the dihydric phenol (I) and the chloroformate compound containing the carbonate oligomer of the dihydric phenol (I) having a terminal chloroformate group in this way, While stirring the mixed solution, the hydroxyaryl-terminated polydiorganosiloxane (II) represented by the formula [5] is added in an amount of 0.01 mol per 1 mol of the dihydric phenol (I) charged in preparing the mixed solution. The polycarbonate-polydiorganosiloxane copolymer resin is obtained by adding the hydroxyaryl-terminated polydiorganosiloxane (II) and the chloroformate compound by interfacial polycondensation.

  The polycarbonate-polydiorganosiloxane copolymer resin of the present invention can be made into a branched polycarbonate copolymer by using a branching agent in combination with the above dihydric phenol compound. Examples of the trifunctional or higher polyfunctional aromatic compound used in the branched polycarbonate resin include phloroglucin, phloroglucid, or 4,6-dimethyl-2,4,6-tris (4-hydroxydiphenyl) heptene-2, 2 , 4,6-trimethyl-2,4,6-tris (4-hydroxyphenyl) heptane, 1,3,5-tris (4-hydroxyphenyl) benzene, 1,1,1-tris (4-hydroxyphenyl) Ethane, 1,1,1-tris (3,5-dimethyl-4-hydroxyphenyl) ethane, 2,6-bis (2-hydroxy-5-methylbenzyl) -4-methylphenol, 4- {4- [ Trisphenol such as 1,1-bis (4-hydroxyphenyl) ethyl] benzene} -α, α-dimethylbenzylphenol, tetra (4-hydride) Loxyphenyl) methane, bis (2,4-dihydroxyphenyl) ketone, 1,4-bis (4,4-dihydroxytriphenylmethyl) benzene, or trimellitic acid, pyromellitic acid, benzophenonetetracarboxylic acid and their acids Among them, 1,1,1-tris (4-hydroxyphenyl) ethane and 1,1,1-tris (3,5-dimethyl-4-hydroxyphenyl) ethane are preferable. 1-Tris (4-hydroxyphenyl) ethane is preferred.

Even if the branched polycarbonate copolymer is produced by the interfacial polycondensation reaction after the completion of the production reaction, the branched solution may contain a branching agent in the mixed solution during the production reaction of the chloroformate compound. It may be a method in which an agent is added. The proportion of the carbonate constituent unit derived from the branching agent is preferably 0.005 to 1.5 mol%, more preferably 0.01 to 1.2 mol% in the total amount of carbonate constituent units constituting the copolymer. Especially preferably, it is 0.05-1.0 mol%. Such a branched structure amount can be calculated by ¹ H-NMR measurement.

  The pressure in the system in the polycondensation reaction can be any of reduced pressure, normal pressure, or increased pressure, but can usually be suitably performed at normal pressure or about the pressure of the reaction system. The reaction temperature is selected from the range of −20 to 50 ° C., and in many cases, heat is generated with the polymerization, so it is desirable to cool with water or ice. Since the reaction time varies depending on other conditions such as the reaction temperature, it cannot be generally specified, but it is usually performed in 0.5 to 10 hours.

In some cases, the obtained polycarbonate copolymer is appropriately subjected to physical treatment (mixing, fractionation, etc.) and / or chemical treatment (polymer reaction, crosslinking treatment, partial decomposition treatment, etc.) to obtain a desired reduced viscosity [η _SP / C] can also be obtained as a polycarbonate copolymer.
The obtained reaction product (crude product) can be recovered as a polycarbonate-polydiorganosiloxane copolymer resin having a desired purity (purity) after various post-treatments such as a known separation and purification method.

The viscosity-average molecular weight of the polycarbonate-polydiorganosiloxane copolymer resin is preferably in the range of 5.0 × 10 ^{3 to} 5.0 × 10 ⁴ . The viscosity average molecular weight is more preferably 1.0 × 10 ^{4 to} 4.0 × 10 ⁴ , further preferably 1.5 × 10 ^{4 to} 3.5 × 10 ⁴ , and particularly preferably 1.7 × 10 ⁴ to 2. .5 × 10 ⁴ . When the viscosity average molecular weight of the polycarbonate-polydiorganosiloxane copolymer resin is less than 5.0 × 10 ³ , practical mechanical strength is difficult to obtain in many fields, and when it exceeds 5.0 × 10 ⁴ , the melt viscosity is It is high and generally requires a high molding temperature, so it tends to cause problems such as thermal degradation of the resin.

  The weight ratio of component A to component B (component A / component B) is preferably 95/5 to 5/95, more preferably 90/10 to 10/90, and even more preferably 80/20 to 20 /. 80. If the weight ratio of the A component to the B component (A component / B component) is greater than 95/5, the durability characteristic of the polycarbonate-polydiorganosiloxane copolymer resin cannot be expressed, and if it is less than 5/95, the solar reflectance is low. Since it falls, it is not preferable.

(C component: titanium oxide having an average particle size of 0.5 to 5.0 μm surface-treated with an organic substance)
In the present invention, titanium oxide having an average particle size of 0.5 to 5.0 μm, which has been surface-treated with an organic substance, is used as component C. (In the present invention, the titanium oxide component of the titanium oxide pigment is expressed as “TiO ₂ ”, and the entire pigment including the surface treatment agent is expressed as “titanium oxide”)

TiO ₂ in the C component may be either anatase type or rutile type in crystal form, and they can be mixed and used as necessary. A rutile type is more preferable in terms of initial mechanical properties and long-term weather resistance. A rutile type crystal may contain an anatase type crystal. Furthermore TiO ₂ production process is sulfuric acid method, chlorine method, but those which have been prepared by various other methods can be used, the chlorine method is more preferred. Further, the titanium oxide of the present invention is not particularly limited in its shape, but is preferably in the form of particles. Titanium oxide is usually used for various coloring applications, but generally about 0.2 μm is widely used. On the other hand, the average particle diameter of titanium oxide used as the component B of the present invention is 0.5 to 5.0 μm, preferably 0.5 to 2.0 μm, and more preferably 0.5 to 1.5 μm. preferable. When the average particle size is smaller than 0.5 μm, the appearance and flame retardance of silver and the like deteriorate when filled high, and sufficient solar reflectance in the near infrared region cannot be obtained, resulting in insufficient heat shielding, When it is larger than 5.0 μm, the appearance is deteriorated and the heat shielding performance is deteriorated. The average particle size is calculated from the number average of individual single particle sizes measured by electron microscope observation.

  C component titanium oxide is surface-treated with an organic compound. When titanium oxide that has not been organically treated is used, the appearance is deteriorated due to yellowing, and the reflectance of the molded product is remarkably lowered, so that sufficient solar reflectance cannot be obtained. Absent. As such a surface treatment agent, various treatment agents such as polyol, amine, and silicone can be used. Examples of the polyol-based surface treatment agent include pentaerythritol, trimethylolethane, and trimethylolpropane. Examples of the amine-based surface treatment agent include triethanolamine acetate and trimethylolamine acetate. Examples of the silicone-based surface treatment agent include alkylchlorosilanes (such as trimethylchlorosilane), alkylalkoxysilanes (such as methyltrimethoxysilane), and hydrogen polysiloxane. Examples of the hydrogen polysiloxane include alkyl hydrogen polysiloxane and alkylphenyl hydrogen polysiloxane. Such an alkyl group is preferably a methyl group or an ethyl group. The titanium oxide surface-treated with such an alkylalkoxysilane and / or hydrogen polysiloxane gives good light reflectivity to the resin composition of the present invention. The amount of the organic compound used for the surface treatment is preferably 0.05 to 5 parts by weight, more preferably 0.5 to 3 parts by weight, and still more preferably 1.5 to 2.5 parts by weight per 100 parts by weight of component C. The range is parts by weight. If the surface treatment amount is less than 0.05 parts by weight, sufficient solar reflectance is difficult to obtain, and if it exceeds 5 parts by weight, it is not preferable from the viewpoint of molding defects such as silver and deterioration of flame retardancy. The surface treatment agent for the organic compound is preferably made in advance on titanium oxide (more preferably, titanium oxide coated with another metal oxide). However, it may be a method in which the surface treatment agent is separately added when the raw material of the resin composition is melt-kneaded, and the surface treatment of titanium oxide is performed in the melt-kneading step.

  Content of C component is 3-30 weight part in 100 weight part of total of A component, B component, and C component, 5-25 weight part is preferable, More preferably, it is 5-20 weight part. If the content of component C is less than 3 parts by weight, sufficient solar reflectance cannot be obtained, and it is difficult to obtain a heat shielding effect. If it exceeds 30 parts by weight, molding defects such as silver and physical properties are remarkably reduced. It is not preferable from the point.

(D component: UV absorber)
The thermoplastic resin composition of the present invention may be used without coating. In such a case, good light resistance may be required, and in such a case, it is effective to add an ultraviolet absorber.

  As the ultraviolet absorber, in the benzophenone series, for example, 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2-hydroxy-4-benzyloxybenzophenone, 2- Hydroxy-4-methoxy-5-sulfoxybenzophenone, 2-hydroxy-4-methoxy-5-sulfoxytrihydride benzophenone, 2,2′-dihydroxy-4-methoxybenzophenone, 2,2 ′, 4,4 ′ -Tetrahydroxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxy-5-sodiumsulfoxybenzophenone, bis (5-benzoyl-4- Hydroxy-2-methoxy Eniru) methane, 2-hydroxy -4-n-dodecyloxy benzoin phenone, and 2-hydroxy-4-methoxy-2'-carboxy benzophenone may be exemplified.

  In the benzotriazole series, for example, 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole, 2- (2-hydroxy-3, 5-Dicumylphenyl) phenylbenzotriazole, 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole, 2,2′-methylenebis [4- (1,1,3 , 3-tetramethylbutyl) -6- (2H-benzotriazol-2-yl) phenol], 2- (2-hydroxy-3,5-di-tert-butylphenyl) benzotriazole, 2- (2- Hydroxy-3,5-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2-hydroxy-3,5 Di-tert-amylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-butylphenyl) benzotriazole, 2- ( 2-hydroxy-4-octoxyphenyl) benzotriazole, 2,2'-methylenebis (4-cumyl-6-benzotriazolephenyl), 2,2'-p-phenylenebis (1,3-benzoxazine-4 -One), and 2- [2-hydroxy-3- (3,4,5,6-tetrahydrophthalimidomethyl) -5-methylphenyl] benzotriazole, and 2- (2'-hydroxy-5-methacryloxy) Copolymerization of ethylphenyl) -2H-benzotriazole with vinyl monomer copolymerizable with the monomer And 2- (2′-hydroxy-5-acryloxyethylphenyl) -2H-benzotriazole and a copolymer of vinyl monomer copolymerizable with the monomer, 2-hydroxyphenyl-2H-benzotriazole skeleton A polymer having

  In the hydroxyphenyl triazine series, for example, 2- (4,6-diphenyl-1,3,5-triazin-2-yl) -5-hexyloxyphenol, 2- (4,6-diphenyl-1,3,5) -Triazin-2-yl) -5-methyloxyphenol, 2- (4,6-diphenyl-1,3,5-triazin-2-yl) -5-ethyloxyphenol, 2- (4,6-diphenyl) -1,3,5-triazin-2-yl) -5-propyloxyphenol and 2- (4,6-diphenyl-1,3,5-triazin-2-yl) -5-butyloxyphenol Illustrated. Furthermore, the phenyl group of the above exemplary compounds such as 2- (4,6-bis (2,4-dimethylphenyl) -1,3,5-triazin-2-yl) -5-hexyloxyphenol is 2,4-dimethyl. Examples of the compound are phenyl groups.

  In the cyclic imino ester system, for example, 2,2′-p-phenylenebis (3,1-benzoxazin-4-one), 2,2′-m-phenylenebis (3,1-benzoxazin-4-one) And 2,2′-p, p′-diphenylenebis (3,1-benzoxazin-4-one) and the like.

  In the case of cyanoacrylate, for example, 1,3-bis-[(2′-cyano-3 ′, 3′-diphenylacryloyl) oxy] -2,2-bis [(2-cyano-3,3-diphenylacryloyl) oxy ] Methyl) propane, 1,3-bis-[(2-cyano-3,3-diphenylacryloyl) oxy] benzene and the like.

  Furthermore, the ultraviolet absorber has a structure of a monomer compound capable of radical polymerization, so that the ultraviolet absorbent monomer and / or the light stable monomer and a single amount of alkyl (meth) acrylate or the like can be obtained. It may be a polymer type ultraviolet absorber copolymerized with a body. Preferred examples of the ultraviolet absorbing monomer include compounds containing a benzotriazole skeleton, a benzophenone skeleton, a triazine skeleton, a cyclic imino ester skeleton, and a cyanoacrylate skeleton in the ester substituent of (meth) acrylic acid ester. The

  The content of component D is preferably 0.01 to 2 parts by weight, more preferably 0.02 to 2 parts by weight, and still more preferably 0.03 parts, based on 100 parts by weight of the total of component A, component B and component C. To 1 part by weight, most preferably 0.05 to 0.5 part by weight. When the content of component C is less than 0.01 parts by weight, sufficient weather resistance cannot be obtained, and when it is more than 2 parts by weight, appearance defects due to gas generation, deterioration of physical properties, flame resistance, etc. Is not preferable.

(E component: flame retardant)
The flame retardant used as the E component in the present invention is not particularly limited as long as it has an effect of improving the flammability within the scope of the effect of the present invention, but preferably a halogen-based flame retardant or a phosphorus-based flame retardant. Preferred examples include flame retardants and fluorine-containing organic metal salts.

  Examples of halogen flame retardants include aromatic halogen compounds, halogenated epoxy resins, halogenated polycarbonate resins, halogenated aromatic vinyl polymers, halogenated cyanurate resins, halogenated polyphenyl ethers, and halogenated polyphenyl thioethers. Preferably, decabromodiphenyl oxide, brominated bisphenol epoxy resin, brominated bisphenol phenoxy resin, brominated bisphenol polycarbonate resin, brominated polystyrene resin, brominated crosslinked polystyrene resin, brominated bisphenol cyanurate resin, brominated Polyphenylene oxide, polydibromophenylene oxide, decabromodiphenyl oxide bisphenol condensate (tetrabromobisphenol A, its oligo Chromatography, or the like).

  The content of the halogen-based flame retardant is preferably 1 to 20 parts by weight, more preferably 2 to 18 parts by weight, and still more preferably 3 to 15 parts by weight with respect to 100 parts by weight of the total of the A component, B component and C component. Parts by weight. If the content is less than 1 part by weight, sufficient flame retardancy cannot be obtained, and if it exceeds 20 parts by weight, the thermal stability is inferior. Examples of the phosphorus-based flame retardant of the present invention include phosphate compounds and phosphazene compounds, and these phosphorus-based flame retardants are generally preferable in that they are excellent in hue. Moreover, since the phosphate compound and the phosphazene compound have a plasticizing effect, they are advantageous in that the moldability of the resin composition of the present invention can be improved. As such phosphate compounds, various known phosphate compounds as conventional flame retardants can be used, and more preferably, one or more phosphate compounds represented by the following general formula (I) can be mentioned.

[Wherein X is hydroquinone, resorcinol, bis (4-hydroxydiphenyl) methane, bisphenol A, dihydroxydiphenyl, dihydroxynaphthalene, bis (4-hydroxyphenyl) sulfone, bis (4-hydroxyphenyl) ketone, and bis ( It is a divalent group derived from a compound selected from the group consisting of 4-hydroxyphenyl) sulfide. n is an integer of 0 to 5, and is an average value of 0 to 5 in the case of a mixture of phosphate esters having different n numbers. R ⁴ , R ⁵ , R ⁶ , and R ⁷ each independently comprise phenol, cresol, xylenol, isopropylphenol, butylphenol, and p-cumylphenol substituted or unsubstituted with one or more halogen atoms. It is a monovalent group derived from a compound selected from the group. ]

More preferably, X in the above formula is a divalent group derived from a compound selected from the group consisting of hydroquinone, resorcinol, bisphenol A, and dihydroxydiphenyl, and R ⁴ , R ⁵ , R ⁶ , And R ⁷ are each independently a monovalent group derived from a compound selected from the group consisting of phenol, cresol, and xylenol, which are substituted or more preferably substituted with one or more halogen atoms; A compound containing as a main component a component in which n is an integer of 1 to 3 can be mentioned.

  As the phosphazene compound, a compound mainly composed of a phosphonitrile linear polymer and / or a phenoxyphosphazene which is a cyclic polymer is preferably used. Such a phosphonitrile linear polymer and / or cyclic polymer can be synthesized by a known method, for example, obtained by reacting phosphorus pentachloride or phosphorus trichloride with ammonium chloride or ammonia gas by a known method. The substance can be synthesized by substituting alcohol, phenol and amines, and Ravitor FP-110 manufactured by Fushimi Pharmaceutical Co., Ltd. is preferably used.

  The content of the phosphorus-based flame retardant is preferably 1 to 25 parts by weight, more preferably 2 to 22 parts by weight, and further 3 to 20 parts by weight with respect to 100 parts by weight of the total of A component, B component and C component. preferable. If the content is less than 1 part by weight, the effect of flame retardancy is difficult to obtain, and if it exceeds 25 parts by weight, the heat resistance of the resin is remarkably lowered, which is not preferable.

  The fluorine-containing organic metal salt in the present invention refers to a metal salt compound composed of an anion component composed of an organic acid having a fluorine-substituted hydrocarbon group and a cation component composed of a metal ion. As a more preferred specific example, Examples include metal salts of fluorine-substituted organic sulfonic acids, metal salts of fluorine-substituted organic sulfates, and metal salts of fluorine-substituted organic phosphates. Fluorine-containing organic metal salts can be used alone or in combination of two or more. Among them, a metal salt of a fluorine-substituted organic sulfonic acid is preferable, and a metal salt of a sulfonic acid having a perfluoroalkyl group is particularly preferable. Here, the carbon number of the perfluoroalkyl group is preferably in the range of 1-18, more preferably in the range of 1-10, and still more preferably in the range of 1-8.

  The metal constituting the metal salt of the present invention is an alkali metal or an alkaline earth metal. Examples of the alkali metal include lithium, sodium, potassium, rubidium, and cesium. Examples of the alkaline earth metal include beryllium, magnesium, and calcium. Strontium and barium. More preferred is an alkali metal. Accordingly, the preferred E component of the present invention is a perfluoroalkylsulfonic acid alkali metal salt.

  Specific examples of such fluorinated organometallic salts, particularly suitable alkali metal perfluoroalkyl sulfonates include potassium trifluoromethane sulfonate, potassium perfluorobutane sulfonate, potassium perfluorohexane sulfonate, and perfluorooctane sulfonate. Potassium, sodium pentafluoroethane sulfonate, sodium perfluorobutane sulfonate, sodium perfluorooctane sulfonate, lithium trifluoromethane sulfonate, lithium perfluorobutane sulfonate, lithium perfluoroheptane sulfonate, cesium trifluoromethane sulfonate, per Cesium fluorobutane sulfonate, cesium perfluorooctane sulfonate, cesium perfluorohexane sulfonate, perfluorobutane Acid rubidium, and perfluorohexane sulfonic acid rubidium, and these may be used in combination of at least one or two. Of these, potassium perfluorobutanesulfonate is particularly preferred.

  The content of the fluorine-containing organic metal salt is preferably 0.005 to 0.6 parts by weight, more preferably 0.005 to 0.2 parts by weight, with respect to 100 parts by weight of the total of component A, component B and component C. And more preferably 0.008 to 0.13 parts by weight. The more preferable the range, the more excellent the heat-shielding property, and when the flame retardancy is required, the flame retardant is also good.

(F component: Fluorine-containing anti-dripping agent)
Examples of the fluorine-containing anti-dripping agent that is the F component of the present invention include a fluorine-containing polymer having a fibril-forming ability. Examples of such a polymer include polytetrafluoroethylene and tetrafluoroethylene copolymers (for example, tetrafluoroethylene). Ethylene / hexafluoropropylene copolymer, etc.), partially fluorinated polymers as shown in US Pat. No. 4,379,910, polycarbonate resins produced from fluorinated diphenols, and the like. Among them, polytetrafluoroethylene (hereinafter sometimes referred to as PTFE) is preferable.

  PTFE having a fibril forming ability has a very high molecular weight, and tends to be bonded to each other by an external action such as shearing force to form a fiber. The molecular weight is 1 million to 10 million, more preferably 2 million to 9 million in the number average molecular weight determined from the standard specific gravity. Such PTFE can be used in solid form or in the form of an aqueous dispersion. In addition, PTFE having such fibril forming ability can improve the dispersibility in the resin, and it is also possible to use a PTFE mixture in a mixed form with other resins in order to obtain better flame retardancy and mechanical properties. is there.

  Examples of commercially available PTFE having such fibril forming ability include Teflon (registered trademark) 6J from Mitsui DuPont Fluorochemical Co., Ltd., Polyflon MPA FA500 and F-201L from Daikin Industries, Ltd. Commercially available PTFE aqueous dispersions include Asahi IC Fluoropolymers' full-on AD-1, AD-936, Daikin Kogyo's full-on D-1 and D-2, Mitsui Dupont Fluoro A typical example is Teflon (registered trademark) 30J manufactured by Chemical Corporation.

  As a mixed form of PTFE, (1) a method in which an aqueous dispersion of PTFE and an aqueous dispersion or solution of an organic polymer are mixed and co-precipitated to obtain a co-aggregated mixture (Japanese Patent Laid-Open No. 60-258263, (Method described in JP-A-63-154744), (2) Method of mixing an aqueous dispersion of PTFE and dried organic polymer particles (Method described in JP-A-4-272957) (3) A method in which an aqueous dispersion of PTFE and an organic polymer particle solution are uniformly mixed, and the respective media are simultaneously removed from the mixture (Japanese Patent Laid-Open Nos. 06-220210, 08-188653, etc.) Described method), (4) a method of polymerizing monomers forming an organic polymer in an aqueous dispersion of PTFE (a method described in JP-A-9-95583), and (5) A method in which an aqueous dispersion of PTFE and an organic polymer dispersion are uniformly mixed, and a vinyl monomer is further polymerized in the mixed dispersion, and then a mixture is obtained (described in JP-A-11-29679, etc.). Those obtained by (Method) can be used. Examples of commercially available PTFE in a mixed form include “Metablene A3750” (trade name) manufactured by Mitsubishi Rayon Co., Ltd. and “BLENDEX B449” (trade name) manufactured by GE Specialty Chemicals.

  As a ratio of PTFE in the mixed form, 1 to 60% by weight of PTFE is preferable in 100% by weight of the PTFE mixture, and more preferably 5 to 55% by weight. When the ratio of PTFE is within such a range, good dispersibility of PTFE can be achieved. In addition, the ratio of the said F component shows the quantity of a net fluorine-containing dripping inhibitor, and in the case of mixed form PTFE, it shows a net PTFE quantity.

  The content of the F component is preferably 0.01 to 1 part by weight, more preferably 0.05 to 0.8 part by weight, based on a total of 100 parts by weight of the A component, the B component, and the C component. More preferred is -0.5 part by weight. When the content of the F component is less than 0.01 parts by weight, a sufficient flame retardancy assisting effect is not exhibited, and when it is more than 1 part by weight, it falls outside the category of non-halogen.

(G component: Styrene resin)
The G component used in the present invention is a styrene resin, specifically, an acrylonitrile-acrylic rubber-styrene copolymer (AAS resin), an acrylonitrile-ethylenepropylene rubber-styrene copolymer (AES resin). ), Methyl methacrylate-butadiene-styrene copolymer (MBS resin), methyl methacrylate-styrene copolymer (MS resin), acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer (ABS resin) Among them, acrylonitrile-butadiene-styrene copolymer (ABS resin) is preferable. Furthermore, the vinyl cyanide compound and the aromatic vinyl compound are added to the diene rubber component having a rubber component amount of 0.1 to 80 parts by weight, preferably 0.2 to 50 parts by weight, more preferably 0.3 to 30 parts by weight. A thermoplastic graft copolymer grafted with is more preferred. Hereinafter, the ABS resin preferable as the G component will be described.

  As the diene rubber component forming the ABS resin, rubber having a glass transition point of 10 ° C. or less such as polybutadiene, styrene-butadiene copolymer, acrylonitrile-butadiene, or the like is used. Examples of the vinyl cyanide compound grafted on the diene rubber component include acrylonitrile and methacrylonitrile, and examples of the aromatic vinyl compound grafted on the diene rubber component include styrene and α-methylstyrene. And nucleus-substituted styrene such as p-methylstyrene.

  In the ABS resin used in the present invention, the proportion of the diene rubber component in 100 parts by weight of the ABS resin component is preferably 0.1 to 80 parts by weight, more preferably 0.2 to 50 parts by weight, particularly preferably 0. 3 to 30 parts by weight.

  In the ABS resin, the rubber particle diameter is preferably 0.05 to 5.0 μm, more preferably 0.1 to 2.0 μm, and still more preferably 0.2 to 0.5 μm in terms of the weight average particle diameter. As the distribution of the rubber particle diameter, either a single distribution or a rubber particle having two or more peaks can be used, and the rubber particles form a single phase in the morphology. Alternatively, it may have a salami structure by containing an occluded phase around the rubber particles.

  Further, it is well known that an ABS resin contains a copolymer of a vinyl cyanide compound and an aromatic vinyl compound that are not grafted to a diene rubber component. The ABS resin of the present invention may contain a free polymer component generated during such polymerization as described above, and a vinyl compound heavy polymer obtained by separately copolymerizing an aromatic vinyl compound and a vinyl cyanide compound. A blended blend may be used. The ratio of the free AS resin can be obtained by dissolving the ABS resin in a good solvent for the AS resin such as acetone and collecting the soluble resin. On the other hand, the insoluble matter (gel) becomes a net ABS resin.

  The ratio of the vinyl cyanide compound and aromatic vinyl compound grafted to the diene rubber component in the ABS resin (the ratio of the weight of the graft component to the weight of the diene rubber component), that is, the graft ratio (% by weight) is 20 to 200. % Is preferable, and more preferably 20 to 80%. Such ABS resin may be produced by any method such as bulk polymerization, solution polymerization, suspension polymerization, and emulsion polymerization.

  The content of the G component is preferably 0.1 to 30 parts by weight, more preferably 5 to 28 parts by weight, and further 10 to 25 parts by weight with respect to 100 parts by weight of the total of the A component, B component and C component. preferable. When the content of the G component is less than 0.1 parts by weight, the moldability is remarkably deteriorated, and when it is more than 30 parts by weight, it is not preferable from the viewpoint of a significant decrease in flame retardancy and a decrease in light resistance.

(Other additives)
(Phosphorus stabilizer)
When the resin composition of the present invention contains a phosphorus-based stabilizer, effects such as deterioration of hue during molding and deterioration of hue during long-term use are further exhibited. Examples of phosphorus stabilizers include phosphorous acid, phosphoric acid, phosphonous acid, phosphonic acid, and esters thereof.

  Specifically, as the phosphite compound, for example, triphenyl phosphite, tris (nonylphenyl) phosphite, tridecyl phosphite, trioctyl phosphite, trioctadecyl phosphite, didecyl monophenyl phosphite, dioctyl monophenyl Phosphite, diisopropyl monophenyl phosphite, monobutyl diphenyl phosphite, monodecyl diphenyl phosphite, monooctyl diphenyl phosphite, 2,2-methylenebis (4,6-di-tert-butylphenyl) octyl phosphite, tris ( Diethylphenyl) phosphite, tris (di-iso-propylphenyl) phosphite, tris (di-n-butylphenyl) phosphite, tris (2,4-di-tert-butylpheny) ) Phosphite, tris (2,6-di-tert-butylphenyl) phosphite, distearyl pentaerythritol diphosphite, bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite, bis (2 , 6-Di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite, bis (2,6-di-tert-butyl-4-ethylphenyl) pentaerythritol diphosphite, phenylbisphenol A pentaerythritol diphosphite Phyto, bis (nonylphenyl) pentaerythritol diphosphite, dicyclohexyl pentaerythritol diphosphite, and the like.

  Further, as other phosphite compounds, those which react with dihydric phenols and have a cyclic structure can be used. For example, 2,2′-methylenebis (4,6-di-tert-butylphenyl) (2,4-di-tert-butylphenyl) phosphite, 2,2′-methylenebis (4,6-di-tert- Butylphenyl) (2-tert-butyl-4-methylphenyl) phosphite, 2,2′-methylenebis (4-methyl-6-tert-butylphenyl) (2-tert-butyl-4-methylphenyl) phosphite 2,2′-ethylidenebis (4-methyl-6-tert-butylphenyl) (2-tert-butyl-4-methylphenyl) phosphite.

  Examples of the phosphate compound include tributyl phosphate, trimethyl phosphate, tricresyl phosphate, triphenyl phosphate, trichlorophenyl phosphate, triethyl phosphate, diphenyl cresyl phosphate, diphenyl monoorxenyl phosphate, tributoxyethyl phosphate, dibutyl phosphate, dioctyl phosphate, Examples thereof include diisopropyl phosphate, and triphenyl phosphate and trimethyl phosphate are preferable.

  Examples of the phosphonite compound include tetrakis (2,4-di-tert-butylphenyl) -4,4′-biphenylenediphosphonite, tetrakis (2,4-di-tert-butylphenyl) -4,3′-biphenylenedi. Phosphonite, tetrakis (2,4-di-tert-butylphenyl) -3,3′-biphenylenediphosphonite, tetrakis (2,6-di-tert-butylphenyl) -4,4′-biphenylenediphosphonite Tetrakis (2,6-di-tert-butylphenyl) -4,3′-biphenylene diphosphonite, tetrakis (2,6-di-tert-butylphenyl) -3,3′-biphenylene diphosphonite, bis (2,4-di-tert-butylphenyl) -4-phenyl-phenylphosphonite, bis (2,4-di tert-butylphenyl) -3-phenyl-phenylphosphonite, bis (2,6-di-n-butylphenyl) -3-phenyl-phenylphosphonite, bis (2,6-di-tert-butylphenyl)- 4-phenyl-phenylphosphonite, bis (2,6-di-tert-butylphenyl) -3-phenyl-phenylphosphonite, and the like, and tetrakis (di-tert-butylphenyl) -biphenylenediphosphonite, bis (Di-tert-butylphenyl) -phenyl-phenylphosphonite is preferred, tetrakis (2,4-di-tert-butylphenyl) -biphenylenediphosphonite, bis (2,4-di-tert-butylphenyl)- More preferred is phenyl-phenylphosphonite. Such a phosphonite compound is preferable because it can be used in combination with a phosphite compound having an aryl group in which two or more alkyl groups are substituted.

Examples of the phosphonate compound include dimethyl benzenephosphonate, diethyl benzenephosphonate, and dipropyl benzenephosphonate.
The phosphorus stabilizers can be used alone or in combination of two or more.
The content of the phosphorus stabilizer is preferably 0.01 to 0.5 parts by weight, more preferably 0.05 to 0.3 parts by weight, with respect to 100 parts by weight of the total of component A, component B and component C. More preferably, it is 0.1-0.2 weight part. When the amount of the phosphorus stabilizer is too much less than the above range, it is not preferable in terms of lowering the wet heat property, and when it is more than the above range, the physical properties may be lowered.

(Hindered phenol stabilizer)
When the resin composition of the present invention further contains a hindered phenol-based stabilizer, effects such as hue deterioration during molding and hue deterioration during long-term use are further exhibited. Examples of the hindered phenol-based stabilizer include α-tocopherol, butylhydroxytoluene, sinapir alcohol, vitamin E, n-octadecyl-β- (4′-hydroxy-3 ′, 5′-di-tert-butylfel). Propionate, 2-tert-butyl-6- (3′-tert-butyl-5′-methyl-2′-hydroxybenzyl) -4-methylphenyl acrylate, 2,6-di-tert-butyl-4- (N , N-dimethylaminomethyl) phenol, 3,5-di-tert-butyl-4-hydroxybenzylphosphonate diethyl ester, 2,2′-methylenebis (4-methyl-6-tert-butylphenol), 2,2′- Methylene bis (4-ethyl-6-tert-butylphenol), 4,4′-methylene bis (2,6- Di-tert-butylphenol), 2,2′-methylenebis (4-methyl-6-cyclohexylphenol), 2,2′-dimethylene-bis (6-α-methyl-benzyl-p-cresol) 2,2′- Ethylidene-bis (4,6-di-tert-butylphenol), 2,2'-butylidene-bis (4-methyl-6-tert-butylphenol), 4,4'-butylidenebis (3-methyl-6-tert- Butylphenol), triethylene glycol-N-bis-3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionate, 1,6-hexanediol bis [3- (3,5-di-tert -Butyl-4-hydroxyphenyl) propionate], bis [2-tert-butyl-4-methyl 6- (3-tert-butyl) -5-methyl-2-hydroxybenzyl) phenyl] terephthalate, 3,9-bis {2- [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionyloxy] -1,1,- Dimethylethyl} -2,4,8,10-tetraoxaspiro [5,5] undecane, 4,4′-thiobis (6-tert-butyl-m-cresol), 4,4′-thiobis (3-methyl) -6-tert-butylphenol), 2,2'-thiobis (4-methyl-6-tert-butylphenol), bis (3,5-di-tert-butyl-4-hydroxybenzyl) sulfide, 4,4'- Di-thiobis (2,6-di-tert-butylphenol), 4,4′-tri-thiobis (2,6-di-tert-butylphenol), 2,2-thiodiethyl Nbis- [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 2,4-bis (n-octylthio) -6- (4-hydroxy-3 ′, 5′-di- tert-butylanilino) -1,3,5-triazine, N, N′-hexamethylenebis- (3,5-di-tert-butyl-4-hydroxyhydrocinnamide), N, N′-bis [3- (3,5-di-tert-butyl-4-hydroxyphenyl) propionyl] hydrazine, 1,1,3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1,3,5 -Trimethyl-2,4,6-tris (3,5-di-tert-butyl-4-hydroxybenzyl) benzene, tris (3,5-di-tert-butyl-4-hydroxyphenyl) iso Anurate, tris (3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate, 1,3,5-tris (4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl) isocyanurate, 1,3,5-tris 2 [3 (3,5-di-tert-butyl-4-hydroxyphenyl) propionyloxy] ethyl isocyanurate and tetrakis [methylene-3- (3 ′, 5′-di-tert -Butyl-4-hydroxyphenyl) propionate] methane and the like. All of these are readily available. The said hindered phenol type stabilizer can be used individually or in combination of 2 or more types.

  The content of the hindered phenol stabilizer is preferably 0.0001 to 1 part by weight, more preferably 0.001 to 0.5 part by weight, with respect to 100 parts by weight of the total of component A, component B and component C. More preferably, it is 0.005-0.3 weight part. When the amount of the hindered phenol stabilizer is too small than the above range, it is difficult to obtain a good stabilizing effect, and when it is too much beyond the above range, the physical properties of the composition may be lowered.

(Inorganic filler)
In the resin composition of the present invention, an inorganic filler can be used within the range where the effects of the present invention are exhibited. By adding an inorganic filler, better flame retardancy, wet heat stability, and rigidity can be obtained. Examples of inorganic fillers include glass fibers (chopped strands), modified cross-section glass fibers, wollastonite, zonotolite, potassium titanate whiskers, aluminum borate whiskers, basic magnesium sulfate whiskers, talc, mica, Examples include plate-like fillers such as glass flakes and graphite flakes, short glass fibers (milled fibers), glass beads, glass balloons, silica particles, titania particles, alumina particles, kaolin, clay, and calcium carbonate. Can do.

(Other resins and elastomers)
In the resin composition of the present invention, an elastomer can be used in a small proportion within a range in which the effects of the present invention are exhibited.
Examples of such elastomers include isobutylene / isoprene rubber, styrene / butadiene rubber, ethylene / propylene rubber, silicone elastomer, acrylic elastomer, polyester elastomer, polyamide elastomer, and MBS (methyl methacrylate / sterene) which is a core-shell type elastomer. / Butadiene) rubber, MAS (methyl methacrylate / acrylonitrile / styrene) rubber and the like.

(Coloring agent)
In the resin composition of the present invention, a colorant can be used in a small proportion within a range where the effects of the present invention are exhibited.
Examples of the colorant include organic dyes, inorganic pigments, organic pigments, carbon black, and the like. Among them, those having a solar reflectance of 780 to 2500 nm exceeding 10% are preferable.

  In addition, in the resin composition of the present invention, additives known per se can be blended in a small proportion for imparting various functions to the molded article and improving the characteristics. These additives are used in usual amounts as long as the object of the present invention is not impaired. Examples of such additives include sliding agents (for example, PTFE particles), light diffusing agents (for example, acrylic crosslinked particles, silicon crosslinked particles, ultrathin glass flakes, calcium carbonate particles), fluorescent dyes, and inorganic phosphors (for example, aluminates). ), Optical brighteners, antistatic agents, inorganic and organic antibacterial agents, photocatalytic antifouling agents (eg fine particle titanium oxide, fine particle zinc oxide), radical generators, infrared absorbers (heat rays) Absorbent), and photochromic agents.

(Manufacture of thermoplastic resin composition)
Arbitrary methods are employ | adopted in order to manufacture the thermoplastic resin composition of this invention. For example, A component, B component, C component and optionally other components are mixed thoroughly using premixing means such as V-type blender, Henschel mixer, mechanochemical device, extrusion mixer, etc. Examples thereof include a method of granulating with a vessel or a briquetting machine, followed by melt kneading with a melt kneader typified by a vent type biaxial ruder and pelletizing with a device such as a pelletizer.

  As a method for supplying each component to the melt kneader, (i) A component, B component, C component and other components are each independently supplied to the melt kneader, (ii) A component, B component, C Examples thereof include a method in which a component and a part of another component are premixed and then supplied to a melt kneader independently of the remaining components. In addition, when there exists a liquid thing in the component to mix | blend, what is called a liquid injection apparatus or a liquid addition apparatus can be used for supply to a melt kneader.

  As the extruder, one having a vent capable of degassing moisture in the raw material and volatile gas generated from the melt-kneaded resin can be preferably used. From the vent, a vacuum pump is preferably installed for efficiently discharging generated moisture and volatile gas to the outside of the extruder. Examples of the melt-kneader include a banbury mixer, a kneading roll, a single-screw extruder, and a multi-screw extruder having three or more axes in addition to a twin-screw extruder.

  The resin extruded as described above is directly cut into pellets, or after forming strands, the strands are cut with a pelletizer to be pelletized. When it is necessary to reduce the influence of external dust during pelletization, it is preferable to clean the atmosphere around the extruder. Although the shape of the obtained pellet can take general shapes, such as a cylinder, a prism, and a spherical shape, it is more preferably a cylinder. The diameter of such a cylinder is preferably 1 to 5 mm, more preferably 1.5 to 4 mm, and still more preferably 2 to 3.3 mm. On the other hand, the length of the cylinder is preferably 1 to 30 mm, more preferably 2 to 5 mm, and still more preferably 2.5 to 3.5 mm.

The solar reflectance of the resin composition obtained by the above method is 80% or more, more preferably 81% or more, still more preferably 83% or more, and particularly preferably 85% or more. If the solar reflectance is less than 80%, sufficient heat shielding performance cannot be imparted.
Furthermore, the resin composition obtained above is preferably 1.8 mmV-0 in the UL94 test, more preferably 1.5 mmV-0, and even more preferably 1.2 mmV-0.

(Resin casing)
The resin casing obtained by molding the thermoplastic resin composition of the present invention can be usually obtained by injection molding the pellet. In such injection molding, not only ordinary molding methods but also injection compression molding, injection press molding, gas assist injection molding, foam molding (including a method of injecting a supercritical fluid), insert molding, in-mold coating molding, heat insulation Examples thereof include mold molding, rapid heating / cooling mold molding (RHCM molding, heat and cool molding, active temperature control molding, etc.), heat and heat molding, two-color molding, sandwich molding, and ultra-high speed injection molding. In addition, either a cold runner method or a hot runner method can be selected for molding. Moreover, according to this invention, the thermoplastic resin composition of this invention can be extrusion-molded, and can also be made into shapes, such as various profile extrusion molded articles, a sheet | seat, a film. For forming sheets and films, an inflation method, a calendar method, a casting method, or the like can also be used. It is also possible to form a heat-shrinkable tube by applying a specific stretching operation. Further, the thermoplastic resin composition of the present invention can be formed into a molded product by rotational molding or blow molding. Furthermore, according to the present invention, the thermoplastic resin composition can be formed into a molded product by press molding or the like.

(surface treatment)
Furthermore, various surface treatments can be performed on the resin casing of the present invention. As the surface treatment, various surface treatments such as a hard coat, a water / oil repellent coat, a hydrophilic coat, an antistatic coat, an ultraviolet absorption coat, and an infrared reflection coat can be performed. Examples of the surface treatment method include liquid deposition, thermal spraying, and liquid coating. As the vapor deposition method, either a physical vapor deposition method or a chemical vapor deposition method can be used. Examples of physical vapor deposition include vacuum vapor deposition, sputtering, and ion plating. Examples of the chemical vapor deposition (CVD) method include a thermal CVD method, a plasma CVD method, and a photo CVD method. In particular, since the resin composition of the present invention is installed and used outdoors, it is preferable to apply an ultraviolet absorbing coat, a water / oil repellent coat, or a hydrophilic / lipophilic coat.

  The resin casing of the present invention comprises (A) a polycarbonate resin (component A) and (B) 70 to 97 parts by weight of a resin component comprising a polycarbonate-polydiorganosiloxane copolymer resin (component B), and (C) an organic substance. Near surface obtained by molding a surface-treated resin composition characterized by comprising 100 parts by weight in total of 3 to 30 parts by weight of titanium oxide (component C) having an average particle diameter of 0.5 to 5.0 μm It is a resin casing for outdoor installation having an infrared reflectance of 80% or more in the infrared region, and is a resin casing imparted with excellent heat shielding properties.

  The present invention provides a resin casing having the above-described characteristics which is not found in a conventionally known molded article. The resin casing of the present invention is useful for a casing installed outdoors from the viewpoint of protecting precision devices inside communication modules, LSIs, CPUs, and the like from the heat of sunlight. Specifically, it is suitable for molded products such as solar cell modules, power conditioners, watt-hour meters, smart meters, smart grid concentrators, public wireless LANs, electric vehicle charging devices, surveillance cameras, and air conditioner outdoor units. It is extremely useful for various industrial applications such as power generation and next generation power grids. The next-generation power grid (smart grid) in the present invention is a power grid that can be optimized by controlling the flow of power from both the supply side and the demand side. Built in part of. Smart meters and wireless base stations (concentrators) are examples of dedicated devices, and smart meters and wireless base stations transmit and receive data via wireless communication. The resin housing for outdoor installation according to the present invention is particularly suitable as a housing for dedicated equipment for the next-generation power transmission network because it has radio communication properties and heat shielding properties that are difficult for metals. As is clear from the above, the industrial effect exhibited by the present invention is extremely great.

The molded product of the resin housing | casing for outdoor installation shape | molded in the Example is shown. As shown in the drawing, the casing has a shape obtained by combining a box-shaped molded body and a flat plate. [1-A] is a schematic perspective view (outer dimensions: length 178 mm × width 245 mm × thickness 2 mm). [1-B] is a cross-sectional view taken along line AA.

  The form of the present invention considered to be the best by the present inventor is a collection of the preferable ranges of the above requirements. For example, typical examples are described in the following examples. Of course, the present invention is not limited to these forms.

  The present invention will be further described below with reference to examples, but the present invention is not limited thereto. The following items were evaluated.

(1) Evaluation of resin composition (i) Flame retardancy (UL94 test 1.8 mm)
A vertical combustion test at a specimen thickness of 1.8 mm was carried out and evaluated by a method (UL94) defined by US Underwriters Laboratory. In addition, what was not applied to any determination of V-0, V-1, and V-2 was described as not V.

(2) Evaluation of resin housing for outdoor installation (i) Product appearance The resin housing for outdoor installation shown in FIG. 1 is molded under the conditions described in the examples, and the state of the molded product is confirmed visually. Those that were not seen were marked with ◯, silver, yellowing, rough surface appearance and other molding defects.

(Ii) Solar reflectance The flat plate molded product (thickness 2 mmt) in the resin housing for outdoor installation shown in FIG. 1 molded under the conditions described in the examples conforms to JIS K5602, and the spectral light reflectance (300 to 300- 2500 nm, every wavelength 0.5 nm) was measured with a spectrophotometer U-3400 type manufactured by Hitachi, Ltd., and the solar reflectance was calculated in the near infrared region (780 nm to 2,500 nm).

(Iii) Heat shielding property About the resin housing for outdoor installation shown in FIG. 1, it shape | molds on the conditions as described in an Example, It irradiates with the halogen lamp which is an irradiation light source on the conditions as shown below, The internal temperature in that case The thermal insulation characteristics were measured by measuring using a contact type thermocouple installed at the lower part inside the box-type casing. From the viewpoint of protecting precision equipment mounted inside, it is preferable to suppress the internal temperature to 50 ° C. or lower.
Irradiation light source: halogen lamp (JDR110V 40WLM / K 50W-type manufactured by USHIO LIGHTING)
Distance between light source and housing: 15 cm directly above the cut sprue runner (reference numeral 4 in FIG. 1)
Outside temperature: 23 ° C
Irradiation time: 30 minutes

(Iv) Durability Charpy impact strength measurement before and after UV irradiation was performed under the following conditions. From the viewpoint of protecting precision equipment mounted inside, it is preferable that the Charpy impact strength retention is 70% or more. The Charpy impact strength retention rate is calculated by the following formula.
Charpy impact strength retention rate (%) = [Charpy impact strength after UV irradiation / Charpy impact strength before UV irradiation] × 100
(Xenon arc irradiation conditions)
Equipment used: Atlas Ci4000 (manufactured by Toyo Seiki Seisakusho)
Irradiance: 0.35 W / m ² (at 340 nm)
Black panel temperature: 63 ° C
Humidity: 50% RH
Test time: 1000 hours Filter: (Outer) borosilicate, (Inner) borosilicate

The following were used as raw materials.
(A component)
A: Linear aromatic polycarbonate resin powder synthesized by interfacial polycondensation from bisphenol A, p-tert-butylphenol as a terminal terminator, and phosgene (manufactured by Teijin Chemicals Ltd .: Panlite L-1225WX (trade name)) , Viscosity average molecular weight 19,800)
(B component)
B-1: Polycarbonate-polydiorganosiloxane copolymer resin (viscosity average molecular weight 19,800, PDMS amount 4.2%, PDMS polymerization degree 37)
B-2: Polycarbonate-polydiorganosiloxane copolymer resin (viscosity average molecular weight 19,800, PDMS amount 4.2%, PDMS polymerization degree 96)
(C component)
C-1: Titanium oxide 1 (manufactured by Resino Color Co., Ltd .: DCF-T-17053 (trade name), average particle size 1.0 μm, with organic surface treatment (surface treatment amount 2.0% by weight))
C-2: Titanium oxide 2 (manufactured by Resino Color Co., Ltd .: DCF-T-17054 (trade name), average particle size 0.5 μm, with organic surface treatment (surface treatment amount 2.0% by weight))
C-3: Titanium oxide 3 (manufactured by Resino Color Co., Ltd .: DCF-T-17007 (trade name), average particle size 0.2 μm, with organic surface treatment (surface treatment amount 2.0% by weight))
C-4: Titanium oxide 4 (manufactured by Teika Co., Ltd .: JR-1000 (trade name), average particle size 1.0 μm, no organic surface treatment)
C-5: Titanium oxide 5 (manufactured by Resino Color Co., Ltd .: average particle size 6.0 μm, with organic surface treatment (surface treatment amount 2.0 wt%))
(D component)
D: UV absorber (manufactured by BASF: TINUVIN 234 (trade name))
(E component)
E-1: Bisphenol A bis (diphenyl phosphate) (manufactured by Daihachi Chemical Industry Co., Ltd .: CR-741 (trade name))
E-2: Phosphononitrile acid phenyl ester (Ravitor FP-110 (trade name) manufactured by Fushimi Pharmaceutical Co., Ltd.)
E-3: Potassium perfluorobutane sulfonate (Dainippon Ink Chemical Co., Ltd .: Megafac F-114P (trade name))
(F component)
F: Polytetrafluoroethylene having fibril forming ability (Daikin Industries, Ltd .: Polyflon MPA FA500)
(G component)
G: ABS (made by Nippon A & L Co., Ltd .: SXH-330 (trade name))
(Other ingredients)
H-1: Release agent (Riken Vitamin Co., Ltd .: EW400 (trade name))
H-2: Hindered phenol antioxidant (IRGANOX1076 manufactured by Ciba Specialty Chemicals)
H-3: Phosphorous antioxidant (IRGAFOS168 manufactured by Ciba Specialty Chemicals)
H-4: Talc (manufactured by Katsumiyama Mining Co., Ltd .: TK-RC (trade name))

[Examples 1-17, Comparative Examples 1-15]
(Production of polycarbonate resin composition)
A component, B component, C component and optionally other additives were sufficiently premixed (so-called dry blend) using a V-type blender in the respective compounding amounts shown in Tables 1 and 2. At that time, additives that are difficult to blend alone such as E component and F component to be blended are dry blended with a part of A component or B component to create a master batch of the additive diluted with powder, and then , A component, B component, C component and other additives were blended. This blend was melt-kneaded with a vented twin-screw extruder, and the melt-kneaded composition was pelletized using a pelletizer. Moreover, when there existed a liquid thing in the component to mix | blend, the liquid injection apparatus was used for the supply to a melt extruder. In particular, the phosphoric acid ester oligomer contained in the E component of the present invention becomes liquid instead of solid depending on the distribution of the condensation degree n. Therefore, a liquid injection device provided with a temperature control device was used for supply to the extruder. Therefore, the extruder used in the present invention is one having a raw material supply port for liquid injection, and such a phosphate ester oligomer is heated at a temperature of 80 ° C. from a feed port provided in a barrel of a normal extruder. The heated one was supplied at a pressure higher than the discharge pressure in the extruder by a liquid carrying device. As the vent type twin screw extruder, a vent type twin screw extruder having a diameter of 30 mmφ [TEX30XSST manufactured by Nippon Steel Works, Ltd.] was used. The extrusion was performed under the conditions of a cylinder temperature of 250 ° C., a screw rotation speed of 200 rpm, a discharge rate of 25 kg / h, and a vent pressure reduction degree of 3 kPa. The extruded resin was formed into a strand and then pelletized by cutting the strand with a pelletizer.
Next, the obtained pellets were dried with a hot air circulation dryer at 80 ° C. for 5 hours. After drying, the cylinder temperature was 240 ° C. and the mold temperature was 60 ° C. with an injection molding machine (Toshiba Machine Co., Ltd .: IS-150EN). Test pieces for various evaluations were molded. Each characteristic was evaluated using these test pieces. The results are shown in Tables 1 and 2.

(Manufacture of resin housing for outdoor installation)
Using an injection molding machine (made by Toshiba Machine Co., Ltd .: IS-150EN) using the pellets after drying, the resin housing for outdoor installation (box molded product and flat plate) shown in FIG. Molding was performed at a mold temperature of 60 ° C. Each characteristic was evaluated using this housing. Their evaluation is shown in Table 1.

  From the said table | surface, it consists of the thermoplastic resin composition containing the titanium oxide with an average particle diameter of 0.5-5.0 micrometers surface-treated with the polycarbonate-type resin of this invention, a polycarbonate polydiorganosiloxane copolymer resin, and organic substance. It can be seen that the outdoor installation housing reduces the temperature rise inside the product.

1 Box-shaped product (wall thickness 2mmt)
2 Flat plate molded product (wall thickness 2mmt)
3 Box-shaped molded product height (30mm)
4 Cut sprue (gate diameter 7mmφ)
5 Vertical length of box-shaped molded product (99mm)
6 Box-shaped molded product horizontal length (149mm)
7 Contact type thermocouple (ADHENSIVE TYPE THERMOCOPLE K, ST-50 made by RKC)

Claims (8)

By copolymerizing (A) polycarbonate resin (component A) and (B) dihydric phenol represented by the following general formula [1] and hydroxyaryl-terminated polydiorganosiloxane represented by the following general formula [3] the obtained polycarbonate - polydiorganosiloxane copolymer resin (B component) Tona is, the weight ratio of a component and B component (a component / B component) is 5/95 to 95/5 in which the resin component 70 to 97 parts by weight And (C) obtained by molding a resin composition characterized by comprising 3 to 30 parts by weight of titanium oxide (component C) surface-treated with an organic substance and having an average particle diameter of 0.5 to 5.0 μm. A resin housing for outdoor installation having a solar reflectance of 80% or more in the near infrared region.

[In General Formula [1], R ¹ and R ² are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, or 6 to 6 carbon atoms. 20 cycloalkyl groups, cycloalkoxy groups having 6 to 20 carbon atoms, alkenyl groups having 2 to 10 carbon atoms, aryl groups having 3 to 14 carbon atoms, aryloxy groups having 3 to 14 carbon atoms, carbon atoms Represents a group selected from the group consisting of an aralkyl group having 7 to 20 carbon atoms, an aralkyloxy group having 7 to 20 carbon atoms, a nitro group, an aldehyde group, a cyano group, and a carboxyl group. E and f are each an integer of 1 to 4, and W is a single bond or at least one group selected from the group consisting of groups represented by the following general formula [2]. . ]

[In the above general formula [2], R ¹¹ , R ¹² , R ¹³ , R ¹⁴ , R ¹⁵ , R ¹⁶ , R ¹⁷ and R ¹⁸ are each independently a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, carbon Represents a group selected from the group consisting of an aryl group having 3 to 14 atoms and an aralkyl group having 7 to 20 carbon atoms, and R ¹⁹ and R ²⁰ each independently represent a hydrogen atom, a halogen atom, or a carbon atom having 1 to 18 carbon atoms. Alkyl groups, alkoxy groups having 1 to 10 carbon atoms, cycloalkyl groups having 6 to 20 carbon atoms, cycloalkoxy groups having 6 to 20 carbon atoms, alkenyl groups having 2 to 10 carbon atoms, and 3 carbon atoms. -14 aryl group, aryloxy group having 6 to 10 carbon atoms, aralkyl group having 7 to 20 carbon atoms, aralkyloxy group having 7 to 20 carbon atoms, nitro group, aldehyde group, cyano group and It represents a group selected from the group consisting of carboxyl groups, and when there are a plurality thereof, they may be the same or different, g is an integer of 1 to 10, and h is an integer of 4 to 7. ]

[In the above general formula [3], R ³ , R ⁴ , R ⁵ , R ⁶ , R ⁷ and R ⁸ are each independently a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, or a substitution having 6 to 12 carbon atoms. Or an unsubstituted aryl group, R ⁹ and R ¹⁰ are each independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkoxy group having 1 to 10 carbon atoms, and p is a natural number Q is 0 or a natural number, and p + q is a natural number less than 300. X is a divalent aliphatic group having 2 to 8 carbon atoms. ] Resin composition, A component, the total 100 parts by weight of component B and C components, to claim 1, characterized in that it contains 0.01 to 2 parts by weight (D) ultraviolet absorber (component (D)) The resin housing for outdoor installation as described. (E) Flame retardant (E component) 0.005 to 25 parts by weight and (F) Fluorine-containing anti-dripping agent (F component) with respect to 100 parts by weight of the total of component A, component B and component C It contains 0.01-1 weight part, The resin housing | casing for outdoor installations of Claim 1 or 2 characterized by the above-mentioned. The resin casing for outdoor installation according to claim 3 , wherein the resin composition is 1.8 mmV-0 in the UL94 test. The resin casing for outdoor installation according to claim 3 or 4 , wherein the E component is a phosphorus-based flame retardant or a fluorine-containing organic metal salt. The resin composition contains 0.1 to 30 parts by weight of (G) styrenic resin (G component) with respect to 100 parts by weight of the total of component A, component B and component C. The resin housing for outdoor installation according to any one of 5 . The resin housing for outdoor installation according to any one of claims 1 to 6 , wherein a communication device is internally provided. The outdoor of any one of claims 1 to 7 , which is a casing of a radio base station of a power grid (smart grid) that can control and optimize the flow of power from both the supply side and the demand side. Resin housing for installation.

Images