JP2020139141A - Aromatic polycarbonate resin composition and optic molding - Google Patents

Abstract

To provide an aromatic polycarbonate resin composition which exhibits excellent thermal stability and high light transmittance, and exhibits excellent light transmittance even if an obtained molding is heated, without sacrificing original properties of polycarbonate resins such as heat resistance and mechanical strength.SOLUTION: An aromatic polycarbonate resin composition comprises an aromatic polycarbonate resin (A), a polysiloxane compound (B), a fatty acid ester (C), and a specific aromatic compound (D). Based on 100 pts.wt. of the aromatic polycarbonate resin (A), the content of the polysiloxane compound (B) is 0.01-1.0 pt.wt., the content of the fatty acid ester (C) is 0.01-0.7 pt.wt., and the content of the specific aromatic compound (D) is equal to or greater than 0.0001 pt.wt. and less than 0.05 pt.wt.SELECTED DRAWING: None

Description

The present invention relates to aromatic polycarbonate resin compositions and optically molded articles.

Polycarbonate resin is excellent in impact resistance, heat resistance, transparency, etc., and is therefore conventionally used for molded products such as light guide plates, various lenses, and nameplates.

For example, Patent Document 1 discloses an aromatic polycarbonate resin composition for a light guide plate in which a stabilizer and a mold release agent are blended with an aromatic polycarbonate resin having a specific molecular weight and a specific molecular weight distribution.

Patent Document 2 discloses a polycarbonate resin composition for an optical molded product in which a fluorescent whitening agent is blended with a resin component obtained by blending a polycarbonate resin with a bead-shaped crosslinked acrylic resin having a specific diameter in a specific amount.

In addition, for example, as disclosed in Patent Document 3 and Patent Document 4, a resin composition in which a polycarbonate resin and another material are used in combination in order to obtain excellent light transmittance and improve the brightness of an optical member is available. Various proposals have been made.

Japanese Unexamined Patent Publication No. 2007-20437 Japanese Unexamined Patent Publication No. 09-020860 Japanese Unexamined Patent Publication No. 2011-133647 Japanese Unexamined Patent Publication No. 11-158364

However, the polycarbonate resin composition disclosed in Patent Document 3 and Patent Document 4 has been required as a material for a light guide plate in recent years (particularly, there is no decrease in light transmittance even when molding is performed at a high temperature because of thin-wall molding). The requirements) cannot be fully satisfied. Furthermore, in recent years, even when a thin molded product (for example, a light guide plate) of about 0.3 mm that has been molded is exposed to a high temperature condition such as light irradiation for an extremely long period of time, there is little decrease in transparency (for example). There is a growing demand for materials that are less cloudy or less colored.

The present invention does not impair the inherent properties of the polycarbonate resin such as heat resistance and mechanical strength, has excellent thermal stability, has high light transmittance, and is molded into a thin molding of about 0.3 mm. To provide an aromatic polycarbonate resin composition in which a product (for example, a light guide plate) is less likely to deteriorate in transparency (less likely to cause cloudiness and coloring) even when exposed to a high temperature due to light irradiation or the like for an extremely long period of time. The purpose.

As a result of diligent studies to solve such a problem, the present inventors have made an aromatic polycarbonate resin (A), a polysiloxane compound (B), a fatty acid ester (C), and an aromatic compound represented by the following formula. The aromatic polycarbonate resin composition containing a predetermined amount of (D) is excellent in thermal stability, high light transmittance, and molded without impairing the inherent properties of the polycarbonate resin such as heat resistance and mechanical strength. Even when a processed thin molded product (light guide plate) of about 0.3 mm is exposed to high temperature conditions such as light source irradiation for a long period of time, there is little deterioration in transparency (white turbidity or coloring is unlikely to occur). The heading, the present invention was completed.

That is, the present invention is an aromatic polycarbonate resin composition containing an aromatic polycarbonate resin (A), a polysiloxane compound (B), a fatty acid ester (C), and an aromatic compound (D) represented by the following formula. With respect to 100 parts by weight of the aromatic polycarbonate resin (A), 0.01 to 1.0 parts by weight of the polysiloxane compound (B), 0.01 to 0.7 parts by weight of the fatty acid ester (C), and Provided is an aromatic polycarbonate resin composition containing 0.0001 parts by weight or more and less than 0.05 parts by weight of the aromatic compound (D), and an optically molded product obtained by molding the aromatic polycarbonate resin composition.
formula:

The polycarbonate resin composition of the present invention does not impair the inherent properties of the polycarbonate resin such as heat resistance and mechanical strength, has excellent thermal stability, has high light transmittance, and the obtained molded product is under the scorching sun. Even when exposed to the environment and / or high temperature conditions such as light source irradiation for a long period of time, the transparency is unlikely to decrease (white turbidity or coloring is unlikely to occur). Therefore, for example, even a thin molded product (light guide plate) having a thickness of about 0.3 mm is unlikely to change in hue and deteriorate (deteriorate) in appearance, and is subject to high temperature conditions caused by the external environment and a light source. Even when exposed to the water for a long period of time, the transparency is unlikely to decrease (white turbidity or coloring is unlikely to occur), and the industrial utility value is extremely high.

The embodiment will be described in detail below. However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters and duplicate explanations for substantially the same configuration may be omitted. This is to avoid unnecessary redundancy of the following description and to facilitate the understanding of those skilled in the art.

It should be noted that the inventors provide the following explanations for those skilled in the art to fully understand the present invention, and are not intended to limit the subject matter described in the claims by these.

The aromatic polycarbonate resin composition of the embodiment of the present invention contains an aromatic polycarbonate resin (A), a polysiloxane compound (B), a fatty acid ester (C) and a specific aromatic compound (D), if necessary. Therefore, it can contain a phosphorus-based antioxidant (E) and / or an epoxy compound (F) and other components.

In the embodiment of the present invention, the aromatic polycarbonate resin (A) is a polycarbonate resin based on an aromatic compound, and is particularly limited as long as the aromatic polycarbonate resin composition of the present invention can be obtained. There is no. Examples of such aromatic polycarbonate resins include polymers obtained by a phosgene method in which various dihydroxydiaryl compounds are reacted with phosgene, or a transesterification method in which a dihydroxydiaryl compound is reacted with a carbonic acid ester such as diphenyl carbonate. it can. A typical example contains a polycarbonate resin made from 2,2-bis (4-hydroxyphenyl) propane (bisphenol A).

As the dihydroxydiaryl compound, in addition to bisphenol A, for example, bis (4-hydroxyphenyl) methane, 1,1-bis (4-hydroxyphenyl) ethane, 2,2-bis (4-hydroxyphenyl) butane, 2 , 2-bis (4-hydroxyphenyl) octane, bis (4-hydroxyphenyl) phenylmethane, 2,2-bis (4-hydroxyphenyl-3-methylphenyl) propane, 1,1-bis (4-hydroxy-) 3-Third Butylphenyl) Propane, 2,2-Bis (4-Hydroxy-3-bromophenyl) Propane, 2,2-Bis (4-Hydroxy-3,5-Dibromophenyl) Propane, 2,2-Bis Bis (hydroxyaryl) alkanes such as (4-hydroxy-3,5-dichlorophenyl) propane; 1,1-bis (4-hydroxyphenyl) cyclopentane, 1,1-bis (4-hydroxyphenyl) cyclohexane and the like Bis (hydroxyaryl) cycloalkanes; dihydroxydiaryl ethers such as 4,4'-dihydroxydiphenyl ether, 4,4'-dihydroxy-3,3'-dimethyldiphenyl ether; dihydroxydiaryl such as 4,4'-dihydroxydiphenylsulfide Sulfides; dihydroxydiaryl sulfoxides such as 4,4'-dihydroxydiphenyl sulfoxide, 4,4'-dihydroxy-3,3'-dimethyldiphenylsulfoxide; 4,4'-dihydroxydiphenylsulfone, 4,4'-dihydroxy- Examples of dihydroxydiaryl sulfones such as 3,3'-dimethyldiphenyl sulfone can be exemplified. These can be used alone or in combination. In addition to these, piperazine, dipiperidyl hydroquinone, resorcin, 4,4'-dihydroxydiphenyl and the like can be used in combination.

Further, the dihydroxydiaryl compound may be used in combination with, for example, the following trivalent or higher valent aromatic compounds.

Examples of the trivalent or higher valent phenol compound include fluoroglucin, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) -heptene, 2,4,6-dimethyl-2,4,6-. Tri- (4-hydroxyphenyl) -heptene, 1,3,5-tri- (4-hydroxyphenyl) -benzol, 1,1,1-tri- (4-hydroxyphenyl) -ethane and 2,2-bis -[4,4- (4,4'-dihydroxydiphenyl) -cyclohexyl] -propane and the like can be exemplified.

The viscosity average molecular weight of the aromatic polycarbonate resin (A) is preferably 1000 to 100,000, and more preferably 12,000 to 30,000. When producing such an aromatic polycarbonate resin (A), a molecular weight modifier, a catalyst, or the like can be used as needed.

In the embodiment of the present invention, the polysiloxane compound (B) is a compound generally understood as a polysiloxane compound, and is not particularly limited as long as the resin composition intended by the present invention can be obtained. The polysiloxane compound (B) preferably contains at least one group selected from an alkoxy group, a vinyl group and a phenyl group. For example, a silicone compound contains at least one of a methoxy group, a vinyl group and a phenyl group. Reactive silicone compounds (organopolysiloxane, etc.) into which a group has been introduced are suitable. The polysiloxane compound (B) can lower the melt viscosity when pelletizing the polycarbonate resin composition to further suppress yellowing, and can further prevent appearance defects such as silver during molding. As the polysiloxane compound, for example, as shown by compounds such as polydimethylsiloxane, polymethylethylsiloxane, and polymethylphenylsiloxane, a polysiloxane compound having a hydrocarbon group having 1 to 12 carbon atoms in a silicon atom is used. be able to.

Moreover, straight polysiloxane oil can also be used as a polysiloxane compound (B). The straight polysiloxane oil is a polysiloxane compound in which the organic group bonded to the silicon atom is a methyl group, a phenyl group or a hydrogen atom. Specific examples of straight polysiloxane oil include dimethylpolysiloxane oil in which the side chains and ends of polysiloxane are all methyl groups, methylphenyl polysiloxane oil in which part of the side chains of polysiloxane is phenyl groups, and polysiloxane. An example is methylhydrogen silicone oil in which a part of the side chain is a hydrogen atom. Modified silicone oil can also be used. This is a polysiloxane compound in which an organic group is introduced into the side chain or the end of straight polysiloxane oil, and is classified into a side chain type, a double-ended type, a single-ended type and a side-chain double-ended type according to the introduction position of the organic group. Will be done. Organic groups introduced into the modified silicone oil include hydrogen atom, alkyl group, aryl group, aralkyl group, fluoroalkyl group, amino group, amide group, epoxy group, mercapto group, carboxy group, polyether group, hydroxy group, Examples thereof include an alkoxy group, an aryloxy group, a polyoxyalkylene group, a vinyl group, an acryloyl group, and a methacryloyl group.

A commercially available product can be used as the polysiloxane compound (B). More specifically, for example, 1,5,5-tetramethyl-3,3-diphenyltrisiloxane (manufactured by Shinetsu Chemical Industry Co., Ltd., trade name KR511), alkoxy group-containing methylphenylpolysiloxane (trade name KR213), Examples of methylphenylsiloxane (manufactured by Toray Dow Corning Silicone, trade name PH1560), methylphenylsiloxane (manufactured by Toray Dow Corning Silicone, trade name SH556), methylphenylsiloxane (manufactured by Toray Dow Corning Silicone, trade name SH710), etc. it can.

The amount of the polysiloxane compound (B) is 0.01 to 1.0 parts by weight, preferably 0.02 to 0.5 parts by weight, and more preferably 0, based on 100 parts by weight of the polycarbonate resin (A). It is .04 to 0.3 parts by weight. When the blending amount of the polysiloxane compound (B) is 0.01 parts by weight or more and 1.0 part by weight or less, the transmittance and hue of the aromatic polycarbonate resin composition can be further improved, and the aromatic polycarbonate resin composition can be further improved. Hue and transmittance can be improved.

The resin composition of the embodiment of the present invention can contain a fatty acid ester (C). The fatty acid ester (C) acts together with the polysiloxane (B) and the specific aromatic compound (D) described later, and is thermally stable without impairing the inherent properties of the obtained polycarbonate resin composition such as heat resistance and mechanical strength. Even when a thin molded product (light guide plate) of about 0.3 mm, which has excellent properties, high light transmittance, and is molded, is exposed for a long period of time under high temperature conditions such as irradiation with a light source, the transparency is reduced. It is a component that can reduce (hard to cause cloudiness or coloring).

For example, thermal deterioration (white turbidity or coloring) caused by long-term light irradiation of an optical molded product molded from an aromatic polycarbonate resin composition by a light source (LED light source or the like) is effectively prevented. When an optically molded product is exposed to harsh conditions such as hot weather and / or light irradiation for a long period of time, the temperature of the surface of the molded product may rise, and the aromatic polycarbonate contained in the aromatic polycarbonate resin composition may rise. The thermal deterioration of the resin (A) may progress little by little. Further, the fatty acid ester (C) in the resin composition can be gradually modified, impairing the transparency (brightness or light transmittance) expected of the aromatic polycarbonate resin composition used for ordinary optical molded articles, and molding. White turbidity or coloring (light to dark coloring) may occur on the surface of the product.

As a result of diligent studies in view of this problem, the inventors of the present application have found that the specific aromatic compound (D) is particularly effective as a compound that suppresses deterioration such as modification of the fatty acid ester (C) and coloring caused by the deterioration. By adding the specific aromatic compound (D) before the melt-kneading of the aromatic polycarbonate resin composition, deterioration of the fatty acid ester (C) in the molded product is suppressed and cloudiness or coloring (light to dark coloring) is performed. The present invention was completed with the idea that the phenomenon can be reduced or alleviated.

In the embodiment of the present invention, as the fatty acid ester (C), a condensed compound of an ordinary aliphatic carboxylic acid and an alcohol can be used, and it is particularly limited as long as the resin composition of the present invention can be obtained. There is no such thing.

Examples of the aliphatic carboxylic acid include saturated or unsaturated monocarboxylic acids, dicarboxylic acids, tricarboxylic acids and the like. The aliphatic carboxylic acid also includes an alicyclic carboxylic acid. Among these, monocarboxylic acids and dicarboxylic acids having 6 to 36 carbon atoms are preferable, and saturated monocarboxylic acids having 6 to 36 carbon atoms are more preferable.

Specific examples of the aliphatic carboxylic acid include palmitic acid, stearic acid, valeric acid, caproic acid, capric acid, lauric acid, arachidic acid, behenic acid, lignoseric acid, cerotic acid, melissic acid, and tetratria-montanic acid. , Montanic acid, glutaric acid, adipic acid, azelaic acid and the like.

Examples of the alcohol include saturated or unsaturated monohydric alcohols and polyhydric alcohols, and these alcohols may have substituents such as a fluorine atom, a chlorine atom, a bromine atom and an aryl group. Among these, saturated alcohols having 30 or less carbon atoms are preferable, and aliphatic saturated monohydric alcohols and aliphatic saturated polyhydric alcohols having 30 or less carbon atoms are more preferable. The aliphatic alcohol also includes an alicyclic alcohol.

Specific examples of the alcohol include octanol, decanol, dodecanol, tetradecanol, stearyl alcohol, behenyl alcohol, ethylene glycol, diethylene glycol, glycerin, pentaerythritol, 2,2-dihydroxyperfluoropropanol, neopentylene glycol and ditrimethylol. Examples thereof include propane and dipentaerythritol.

Specific examples of the fatty acid ester (C) include behenyl behenate, octyldodecylbehenate, stearyl stearate, glycerin monopalmitate, glycerin monosteerate, glycerin monoolate, glycerin distearate, and glycerin tristeer. Rate, pentaerythritol monopalmitate, pentaerythritol monostearate, pentaerythritol distearate, pentaerythritol tristearate, pentaerythritol tetrastearate, etc., which can be used alone or in combination of two or more. it can. Among these, stearic acid esters such as glycerin monostearate, pentaerythritol stearate, and pentaerythritol distearate are preferable. Unistar H476DP (“Unistar” is a registered trademark) and Roxyol VPG861 (trade name, manufactured by Cognis) manufactured by Co., Ltd. are commercially available.

The amount of the fatty acid ester (C) can be, for example, 0.01 to 0.7 parts by weight, preferably 0.03 to 0.5 parts by weight, based on 100 parts by weight of the polycarbonate resin (A). , 0.05 to 0.2 parts by weight, more preferably. When the amount of the fatty acid ester (C) is 0.01 to 0.7 parts by weight, yellowing can be further suppressed and the hue can be further improved.

The amount of the specific aromatic compound (D) used in the embodiment of the present invention is 0.0001 or more and less than 0.05 parts by weight with respect to 100 parts by weight of the aromatic polycarbonate resin (A), and is 0.0005. It is preferably 0.003 parts by weight or more by weight. When the amount of the aromatic compound (D) is 0.0001 to 0.05 parts by weight, cloudiness or coloring can be further suppressed, and the high level of light transmittance and hue required for an optical molded product can be further achieved. Can be done.

In the embodiment of the present invention, as described above, a phosphorus-based antioxidant (E) can be further contained, if necessary. The phosphorus-based antioxidant (E) in the embodiment of the present invention is not particularly limited as long as the aromatic polycarbonate resin composition of the present invention can be obtained, but the phosphorus-based antioxidant (E) has the following phosphite ester structure. It preferably contains a phosphoric acid ester compound.

In the aromatic polycarbonate resin composition of the embodiment of the present invention, the phosphorus-based antioxidant (E) is a phosphite ester compound represented by the following formula (1) and a phosphite ester represented by the following formula (2). It is preferable to contain at least one compound selected from an acid ester compound, a phosphite ester compound represented by the following formula (3), and a phosphite ester compound represented by the following formula (4). The phosphorus-based antioxidant (E) acts together with the fatty acid ester (C) and the specific aromatic compound (D) described later, and impairs the inherent properties of the obtained polycarbonate resin composition such as heat resistance and mechanical strength. Even when a thin molded product (light guide plate) of about 0.3 mm that has been molded, has excellent thermal stability, and has high light transmittance, is exposed for a long period of time under high temperature conditions such as light source irradiation. It is a component that reduces the decrease in transparency (which is less likely to cause cloudiness or coloring).

The phosphorus-based antioxidant (E) preferably contains, for example, a compound represented by the following formula (1).

Equation (1):
(In the formula, R ¹ represents an alkyl group having 1 to 20 carbon atoms, and a represents an integer of 0 to 3).

In the above formula (1), R ¹ is an alkyl group having 1 to 20 carbon atoms, and more preferably an alkyl group having 1 to 10 carbon atoms.

Examples of the compound represented by the formula (1) include triphenylphosphine, tricresylphosphine, tris (2,4-di-t-butylphenyl) phosphite, trisnonylphenylphosphine and the like. .. Among these, tris (2,4-di-t-butylphenyl) phosphite is particularly preferable, and for example, it is commercially available as Irgafos 168 manufactured by BASF (“Irgafos” is a registered trademark of BASF Societyus Europe). It is available at.

The phosphorus-based antioxidant (E) preferably contains, for example, a compound represented by the following formula (2).

Equation (2):
(In the formula, R ⁹ and R ¹⁰ each independently represent an alkyl group having 1 to 20 carbon atoms or an aryl group which may be substituted with an alkyl group, and b and c are independently 0. Indicates an integer of ~ 3.)

Examples of the compound represented by the formula (2) include bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite, phenylbisphenol A pentaerythritol diphosphite and the like. Bis (2,4-di-tert-butylphenyl) pentaerythritol diphosphite is commercially available under the trade name "ADEKA STAB PEP-24G" manufactured by ADEKA. ADEKA STAB PEP-36 (“ADEKA STAB” is a registered trademark) manufactured by ADEKA Corporation is commercially available.
The phosphorus-based antioxidant (E) preferably contains, for example, a compound represented by the following formula (3).

Equation (3):
(In the formula, R ² , R ³ , R ⁵ and R ⁶ each have a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, and 6 to 12 carbon atoms, respectively. Alkylcycloalkyl group, aralkyl group or phenyl group having 7 to 12 carbon atoms. R ⁴ represents hydrogen atom or alkyl group having 1 to 8 carbon atoms. X is a single bond, sulfur atom or formula: -CHR. ⁷ − (Here, R ⁷ indicates a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or a cycloalkyl group having 5 to 8 carbon atoms). A indicates a group having 1 to 8 carbon atoms. alkylene group or the formula: * - COR 8 - ^(wherein, R ⁸ represents a single bond or an alkylene group having 1 to 8 carbon atoms, * indicates a bond to the oxygen side) are represented by Y and Z indicate a hydroxyl group, an alkoxy group having 1 to 8 carbon atoms or an aralkyloxy group having 7 to 12 carbon atoms, and the other has a hydrogen atom or 1 to 8 carbon atoms. Indicates an alkyl group.)

In the formula (3), R ² , R ³ , R ⁵ and R ⁶ independently have a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, and ^{6 to 6} carbon atoms, respectively. It shows 12 alkylcycloalkyl groups, 7-12 carbon atoms aralkyl or phenyl groups.

Here, examples of the alkyl group having 1 to 8 carbon atoms include a methyl group, an ethyl group, an n-propyl group, an i-propyl group, an n-butyl group, an i-butyl group, a sec-butyl group and a t-butyl group. Examples include a group, a t-pentyl group, an i-octyl group, a t-octyl group, a 2-ethylhexyl group and the like. Examples of the cycloalkyl group having 5 to 8 carbon atoms include a cyclopentyl group, a cyclohexyl group, a cycloheptyl group, a cyclooctyl group and the like. Examples of the alkylcycloalkyl group having 6 to 12 carbon atoms include a 1-methylcyclopentyl group, a 1-methylcyclohexyl group, a 1-methyl-4-i-propylcyclohexyl group and the like. Examples of the aralkyl group having 7 to 12 carbon atoms include a benzyl group, an α-methylbenzyl group, an α, α-dimethylbenzyl group and the like.

It is preferable that R ² , R ³ and R ⁵ are independently an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, or an alkyl cycloalkyl group having 6 to 12 carbon atoms. .. In particular, R ² and R ⁵ are preferably t-alkyl groups such as t-butyl group, t-pentyl group and t-octyl group, cyclohexyl group or 1-methylcyclohexyl group, respectively. In particular, R ³ has the number of carbon atoms such as methyl group, ethyl group, n-propyl group, i-propyl group, n-butyl group, i-butyl group, sec-butyl group, t-butyl group and t-pentyl group. It is preferably an alkyl group of 1 to 5, and more preferably a methyl group, a t-butyl group or a t-pentyl group.

The R ⁶ is preferably a hydrogen atom, an alkyl group having 1 to 8 carbon atoms or a cycloalkyl group having 5 to 8 carbon atoms, and is a hydrogen atom, a methyl group, an ethyl group, an n-propyl group, or an i-propyl group. , N-Butyl group, i-butyl group, sec-butyl group, t-butyl group, t-pentyl group and the like, more preferably an alkyl group having 1 to 5 carbon atoms.

In the formula (3), R ⁴ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. Examples of the alkyl group having 1 to 8 carbon atoms include the alkyl groups exemplified in the above-mentioned explanations of R ² , R ³ , R ⁵ and R ⁶ . In particular, R ⁴ is preferably a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and more preferably a hydrogen atom or a methyl group.

In the formula (3), X is a single bond, a sulfur atom or the formula: -CHR ⁷ - represents a group represented by. Here, R ⁷ in the formula: −CHR ⁷ − represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a cycloalkyl group having 5 to 8 carbon atoms. Examples of the alkyl group having 1 to 8 carbon atoms and the cycloalkyl group having 5 to 8 carbon atoms include the alkyl group and the cycloalkyl group exemplified in the explanations of R ² , R ³ , R ⁵ and R ⁶ , respectively. Be done. In particular, X is a single bond, a methylene group, or a methylene group substituted with a methyl group, an ethyl group, an n-propyl group, an i-propyl group, an n-butyl group, an i-butyl group, a t-butyl group, or the like. It is preferably present, and more preferably a single bond.

In the formula (3), A is an alkylene group, or a group represented by formula having 1 to 8 carbon atoms: * - COR ⁸ - a group represented by. Examples of the alkylene group having 1 to 8 carbon atoms include a methylene group, an ethylene group, a propylene group, a butylene group, a pentamethylene group, a hexamethylene group, an octamethylene group, a 2,2-dimethyl-1,3-propylene group and the like. , Which is preferably a propylene group. Further, the formula: * - COR ⁸ - ^{R 8} in the represents a single bond or an alkylene group having 1 to 8 carbon atoms. Examples of the alkylene group having 1 to 8 carbon atoms showing R ⁸ include the alkylene group exemplified in the above description of A. R ⁸ is preferably a single bond or an ethylene group. Further, the formula: * ^- COR 8 - * is in a bond of the oxygen side, indicating that a carbonyl group is bonded to an oxygen atom of the phosphite group.

In the formula (3), one of Y and Z represents a hydroxyl group, an alkoxy group having 1 to 8 carbon atoms or an aralkyloxy group having 7 to 12 carbon atoms, and the other is a hydrogen atom or 1 to 8 carbon atoms. The alkyl group of. Examples of the alkoxy group having 1 to 8 carbon atoms include a methoxy group, an ethoxy group, a propoxy group, a t-butoxy group, a pentyloxy group and the like. Examples of the aralkyloxy group having 7 to 12 carbon atoms include a benzyloxy group, an α-methylbenzyloxy group, an α, α-dimethylbenzyloxy group and the like. Examples of the alkyl group having 1 to 8 carbon atoms include the alkyl groups exemplified in the above-mentioned explanations of R ² , R ³ , R ⁵ and R ⁶ .

Examples of the compound represented by the formula (3) include 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl) propoxy. ] Dibenzo [d, f] [1,3,2] dioxaphosfepine, 6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propoxy] -2,4,8, 10-Tetra-t-Butyldibenzo [d, f] [1,3,2] dioxaphosphepine, 6- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propoxy]- 4,8-di-t-Butyl-2,10-dimethyl-12H-dibenzo [d, g] [1,3,2] dioxaphosphocin, 6- [3- (3,5-di-t-) Butyl-4-hydroxyphenyl) propionyloxy] -4,8-di-t-butyl-2,10-dimethyl-12H-dibenzo [d, g] [1,3,2] dioxaphosphocin and the like. .. Among these, when the obtained aromatic polycarbonate resin composition is used in a field where optical properties are particularly required, 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl) -4-Hydroxy-5-t-butylphenyl) propoxy] dibenzo [d, f] [1,3,2] dioxaphosfepine is suitable, for example, Sumitomo Chemical Co., Ltd.'s Sumilyzer GP ("" "Sumilyzer" is commercially available as a registered trademark).

The phosphorus-based antioxidant (E) preferably contains, for example, a compound represented by the following formula (4).

Equation (4):

(In the formula, R ^{11 to} R ¹⁸ each independently represent an alkyl group or an alkenyl group having 1 to 3 carbon atoms. R ¹¹ and R ¹² , R ¹³ and R ¹⁴ , R ¹⁵ and R ¹⁶ , R ¹⁷ and R ¹⁸ may be bonded to each other to form a ring. R ^{19 to} R ²² each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms. D to g are independent of each other. An integer of 0 to 5. X ^{1 to} X ⁴ independently represent a single bond or a carbon atom. When X ^{1 to} X ⁴ are single bonds, among R ^{11 to} R ²² The functional group linked to the single bond is excluded from the general formula (4))

Specific examples of the compound represented by the formula (4) include bis (2,4-dicumylphenyl) pentaerythritol diphosphite. This is made by Dover Chemical, product name "Doverphos (registered trademark) S-9228", manufactured by ADEKA, product name "ADEKA STAB PEP-45" (bis (2,4-dikumilphenyl) pentaerythritol diphosphite). It is commercially available as.

The amount of the phosphorus-based antioxidant (E) is, for example, 0.01 to 0.3 parts by weight and 0.01 to 0.1 parts by weight with respect to 100 parts by weight of the aromatic polycarbonate resin (A). It is preferably 0.04 to 0.1 parts by weight, more preferably 0.04 to 0.08 parts by weight. When the amount of the phosphorus-based antioxidant (E) is 0.01 to 0.3 parts by weight, the light transmittance and the hue can be further improved.

In addition to the above components, the aromatic polycarbonate resin composition according to the embodiment of the present invention may further contain the epoxy compound (F). When the aromatic polycarbonate resin composition further contains the epoxy compound (F) at the same time, the molded product made of the obtained aromatic polycarbonate resin composition while maintaining and improving the excellent optical properties required for the optically molded product. It is possible to prevent deterioration such as deterioration due to usage conditions and aging deterioration without deteriorating the initial optical characteristics.

The epoxy compound (F) is not particularly limited as long as it has at least one epoxy group in the molecule and the aromatic polycarbonate resin composition of the present invention can be obtained. The epoxy compound (F) is, for example, 3', 4'-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate, epoxidized soybean oil, ε-caprolactone modified 3', 4'-epoxycyclohexylmethyl 3,4-. Epoxycyclohexanecarboxylate, epoxy group-containing acrylic / styrene polymer, 2,2-bis (4-hydroxycyclohexyl) propane-diglycidyl ether and the like can be contained. The epoxy compound (F) preferably contains 3', 4'-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate.

The aromatic polycarbonate resin composition of the embodiment of the present invention preferably contains 0.001 to 0.2 parts by mass of the epoxy compound (F) with respect to 100 parts by mass of the aromatic polycarbonate resin (A). It is more preferably contained in an amount of 0.002 to 0.1 parts by mass, and particularly preferably 0.005 to 0.05 parts by mass.

The aromatic polycarbonate resin composition of the embodiment of the present invention is an optically molded product when 0.001 to 0.2 parts by mass of the epoxy compound (F) is contained with respect to 100 parts by mass of the aromatic polycarbonate resin (A). While maintaining and improving the excellent optical properties required for the above, the initial optical properties (integrated transmittance and yellowness) of the obtained molded product made of the aromatic polycarbonate resin composition are improved, and deterioration and aging deterioration due to usage conditions are improved. It is possible to prevent deterioration such as.

In addition to the above components, the aromatic polycarbonate resin composition of the embodiment of the present invention may further contain an acrylic resin (G). In the embodiment of the present invention, the acrylic resin (G) is a resin generally understood as an acrylic resin, and is not particularly limited as long as the resin composition intended by the present invention can be obtained. When the aromatic polycarbonate resin composition further contains an acrylic resin (G), it is obtained from the aromatic polycarbonate resin composition obtained while maintaining and improving excellent optical properties such as total light transmittance required for an optically molded product. It is possible to prevent deterioration such as deterioration due to usage conditions and aging deterioration without deteriorating the initial optical characteristics of the molded product. The acrylic resin refers to a polymer having a monomer unit of acrylic acid, acrylic acid ester, acrylonitrile and a derivative thereof as a repeating unit, and refers to a homopolymer or a copolymer with styrene, butadiene and the like. Specifically, polyacrylic acid, polymethyl methacrylate (PMMA), polyacrylonitrile, ethyl acrylate--2-chloroethyl copolymer, acrylate-n-butyl-acrylonitrile copolymer, acrylonitrile-styrene copolymer. Combined, acrylonitrile-butadiene copolymer, acrylonitrile-butadiene-styrene copolymer and the like. Among these, polymethyl methacrylate (PMMA) can be preferably used. This polymethyl methacrylate (PMMA) may be known, but it is preferably made by bulk polymerization of a methyl methacrylate monomer in the presence of a peroxide or an azo-based polymerization initiator.

The weight average molecular weight of the acrylic resin (G) is preferably 2 to 100,000, more preferably 20,000 to 60,000. When the weight average molecular weight is within the above range, phase separation between the polycarbonate resin and the acrylic resin is less likely to occur during molding, and the possibility of adversely affecting the light guide property when the light guide plate is used is reduced. When the acrylic resin (G) is contained, it is preferably 0.01 to 0.5 parts by mass, more preferably 0.02 to 0.4 parts by mass, and particularly preferably 0.02 to 0.4 parts by mass with respect to 100 parts by mass of the polycarbonate resin (A). It is 0.03 to 0.15 parts by mass.

In addition to the above components, in the aromatic polycarbonate resin composition according to the embodiment, for example, an ultraviolet absorber which is a component for further improving the weather resistance of the obtained aromatic polycarbonate resin composition is added to the aromatic polycarbonate resin composition. It can be appropriately used depending on the use of the molded product obtained by molding the product.

As the ultraviolet absorber, for example, an ultraviolet absorber usually blended in a polycarbonate resin, such as a benzotriazole compound, a triazine compound, a benzophenone compound, and a oxalic acid anilide compound, may be used alone or in combination of two or more. Can be used.

Examples of the benzotriazole-based compound include 2- (2-hydroxy-5-t-octylphenyl) benzotriazole and 2- (3-tert-butyl-2-hydroxy-5-methylphenyl) as the benzotriazole-based compound. -5-chloro-2H-benzotriazole, 2- (3,5-di-tert-pentyl-2-hydroxyphenyl) -2H-benzotriazole, 2- (2H-benzotriazole-2-yl) -4-methyl-6- ( 3,4,5,6-terahydrophimidylmethyl) phenol, 2- (2-hydroxy-4-octyloxyphenyl) -2H-benzotriazole, 2- (2-hydride-5-tert-octylphenyl) -2H-bren '-Hydroxy-3,5-di (1,1-dimethylbenzyl) phenyl] -2H-benzotriazole, 2,2'-Methylenbis [6- (2H-benzotriazole-2-yl) 4- (1,1,3) 3-tetramethylbutyl) phenol] and the like. Of these, 2- (2-hydroxy-5-t-octylphenyl) benzotriazole and the like are particularly preferable. For example, TINUVIN 329 manufactured by BASF (TINUVIN is a registered trademark) and Seasorb manufactured by Cipro Kasei Co., Ltd. 709, Chemisorb 79 manufactured by Chemipro Kasei Co., Ltd., etc. are commercially available.

Examples of the triazine-based compound include 2,4-diphenyl-6- (2-hydroxyphenyl-4-hexyloxyphenyl) 1,3,5-triazine and 2- [4,6-bis (2,4-dimethyl). Phenyl) -1,3,5-triazine-2-yl] -5- (octyloxy) phenol, 2- (4,6-diphenyl-1,3,5-triazine-2-yl) -5-[( Hexyl) oxy] phenol and the like, for example, TINUVIN 1577 manufactured by BASF, etc. are commercially available.

As the oxalic acid anilide compound, for example, Sanduvor VSU manufactured by Clariant Japan Co., Ltd. is commercially available.

Examples of the benzophenone compound include 2,4-dihydroxybenzophenone and 2-hydroxy-4-n-octoxybenzophenone.

The amount of the ultraviolet absorber is 0 to 1.0 parts by weight, preferably 0 to 0.5 parts by weight, based on 100 parts by weight of the aromatic polycarbonate resin (A). If the amount of the ultraviolet absorber exceeds 1.0 part by weight, the initial hue of the obtained aromatic polycarbonate resin composition may decrease. Further, when the amount of the ultraviolet absorber is 0.1 parts by weight or more, the effect of further improving the weather resistance of the aromatic polycarbonate resin composition is particularly exhibited.

Further, the aromatic polycarbonate resin composition according to the embodiment includes, for example, a heat stabilizer, another antioxidant, a coloring agent, a mold release agent, a softening agent, and an antistatic agent, as long as the effects in the present invention are not impaired. Agents, various additives such as impact improving agents, polymers other than the aromatic polycarbonate resin (A), and the like may be appropriately blended.

The aromatic polycarbonate resin composition of the embodiment of the present invention is a mixture of an aromatic polycarbonate resin (A), a polysiloxane (B), a fatty acid ester (C) and a specific aromatic compound (D), and if necessary, Examples of a production method in which a phosphorus-based antioxidant (E), an epoxy compound (F), the various additives, and a polymer such as an acrylic resin (G) other than the aromatic polycarbonate resin (A) are mixed can be exemplified. .. As long as the aromatic polycarbonate resin composition of the present invention can be obtained, the production method thereof is not particularly limited, and the type and amount of each component can be appropriately adjusted. The method of mixing the components is also not particularly limited, and examples thereof include a method of mixing with a known mixer such as a tumbler and a ribbon blender, and a method of melt-kneading with an extruder. By these methods, pellets of the aromatic polycarbonate resin composition can be easily obtained. The specific aromatic compound (D) may be mixed before melt-kneading, or may be added or mixed with the fatty acid ester (C) in advance.

The shape and size of the pellets of the aromatic polycarbonate resin composition obtained as described above are not particularly limited, and may be any shape and size of general resin pellets. For example, the shape of the pellet includes an elliptical columnar shape, a columnar shape, and the like. The size of the pellet is preferably about 2 to 8 mm in length, and in the case of an elliptical columnar shape, the major axis of the cross-sectional ellipse is preferably about 2 to 8 mm and the minor axis is preferably about 1 to 4 mm. In the case of a columnar shape, it is preferable that the diameter of the cross-sectional circle is about 1 to 6 mm. It should be noted that each of the obtained pellets may have such a size, and all the pellets forming the pellet aggregate may have such a size, and the average value of the pellet aggregate is this. The size may be such that there is no particular limitation.

The optically molded product of the embodiment of the present invention can be obtained by molding the above aromatic polycarbonate resin composition.

As long as the optically molded product intended by the present invention can be obtained, the method for producing the optically molded product is not particularly limited, and for example, an aromatic polycarbonate resin composition can be obtained by a known injection molding method, compression molding method, or the like. There is a method of molding.

The optical molded product according to the present invention is suitable as, for example, a light guide plate, a surface light emitting body material, a light guide film, a light guide for a vehicle, a nameplate, and the like.

As described above, an embodiment has been described as an example of the present invention. However, the technique of the present invention is not limited to this, and can be applied to embodiments in which modifications, replacements, additions, omissions, etc. are appropriately made.

Hereinafter, the present invention will be specifically described with reference to Examples, but the present invention is not limited to these Examples. Unless otherwise specified, "parts" and "%" are based on weight.

The following materials were used as raw materials.
1. 1. Aromatic polycarbonate resin (A):
Polycarbonate resin synthesized from bisphenol A and carbonyl chloride Viscosity average molecular weight: 15,000, SD Polycarbonate 200-80 (trade name) manufactured by Sumika Polycarbonate Co., Ltd., "SD Polycarbonate" is a registered trademark of Sumika Polycarbonate Co., Ltd. , Hereinafter also referred to as "PC" or (A1)

2. 2. Polysiloxane compound (B)
2-1.1,5,5-tetramethyl-3,3-diphenyltrisiloxane manufactured by Shin-Etsu Chemical Co., Ltd., trade name KR511, hereinafter also referred to as "B1")

2-2. Methylphenyl polysiloxane, manufactured by Toray Dow Corning Silicone, trade name SH556, also referred to as "B2" below.

2-3. Methylphenyl polysiloxane, manufactured by Toray Dow Corning Silicone, trade name PH1560, hereinafter also referred to as "B3"

2-4. Alkoxy group-containing methylphenyl polysiloxane manufactured by Shin-Etsu Chemical Co., Ltd., trade name KR213, hereinafter also referred to as "B4")

3. 3. Fatty acid ester (C):
Glycerin monostearate, manufactured by RIKEN Vitamin Co., Ltd., trade name Rikemar S-100A, hereinafter also referred to as "C")

4. Aromatic compound (D):
3,5-Di-t-Butyl-4-hydroxytoluene [manufactured by Wako Pure Chemical Industries, Ltd., also referred to as (D1)]

5. Phosphorus antioxidant (E):
5-1. Tris (2,4-di-t-butylphenyl) phosphite represented by the following formula
[Irgafos 168 (trade name) manufactured by BASF, also referred to as (E1)]

5-2. Bis (2,4-di-tert-butyl-4-methylphenyl) pentaerythritol diphosphite (IUPAC name: 3,9-bis (2,6-di-tert-butyl-butyl-) represented by the following formula 4-Methylphenoxy) -2,4,8,10-tetraoxa-3,9-diphosphaspiro [5,5] undecane)
[ADEKA made ADEKA STAB PEP-36 (trade name), also referred to as (E2)]

6. Epoxy compound (F)
3', 4'-Epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylate [Ceroxide 2021P (trade name) manufactured by Daicel Chemical Industries, Ltd., also referred to as (F1)]

7. Acrylic resin (G)
Polymethyl methacrylate (PMMA)
[Dianar BR83 (trade name) manufactured by Mitsubishi Chemical Corporation, also referred to as (G1)]

(Examples 1 to 13 and Comparative Examples 1 to 6)
Each of the above raw materials was put into a tumbler at the ratios shown in Tables 1 to 3 and mixed dry for 10 minutes, and then melted using a twin-screw extruder (manufactured by Japan Steel Works, Ltd., TEX30α). Melt-kneading was performed at a temperature of 220 ° C. to obtain pellets of each of the aromatic polycarbonate resin compositions of Examples 1 to 11 and Comparative Examples 1 to 6.
The pellets obtained in Examples and Comparative Examples are both substantially elliptical columnar, and the aggregate consisting of 100 pellets has an average length of about 5.1 mm to about 5.4 mm and an elliptical cross section. The average value of the major axis was about 4.1 mm to about 4.3 mm, and the average value of the minor axis was about 2.2 mm to about 2.3 mm.

Using the obtained pellets, each evaluation test piece was prepared according to the following method and used for evaluation. The results are shown in Tables 1 and 2.

(Method of preparing test piece)
After the obtained pellets are dried at 120 ° C. for 4 hours or more, JIS K 7139 “Plastic-” is used at an injection molding machine (ROBOSHOT S2000i100A manufactured by FANUC Co., Ltd.) at a molding temperature of 280 ° C. and a mold temperature of 80 ° C. A specified multipurpose test piece A type (total length 168 mm × thickness 4 mm) was prepared from “Test piece”. The end face of this test piece was cut, and the cut end face was mirror-finished using a resin plate end face mirror machine (Plastic Beauty PB-500, manufactured by Megaro Technica Co., Ltd.).

(Evaluation method of integrated transmittance)
A spectrophotometer (UH4150, manufactured by Hitachi, Ltd.) is equipped with a long optical path measurement accessory device, and a 50 W halogen lamp is used as the light source. The light source front mask 5.6 mm x 2.8 mm, sample front mask 6.0 mm x Using 2.8 mm, the spectral transmittance of each test piece in the region of wavelength 380 to 780 nm for each 1 nm was measured in the total length direction of the test piece. The measured spectral transmittances were integrated and the tens digit was rounded off to obtain each integrated transmittance. A cumulative transmittance of 32,000 or more was considered good (indicated by ⊚ in the table), less than 32,000 was considered to be usable (indicated by ◯ in the table), and less than 30,000 was regarded as defective (indicated by x in the table).

(Evaluation method of yellowness)
Based on the spectral transmittance measured in the method for evaluating the integrated transmittance, the yellowness (hereinafter, YI) of each was determined in a 10-degree field of view using the standard light source D65. When YI was 12 or less, it was considered good (indicated by ◎ in the table), when it exceeded 12, it was considered usable (indicated by ○ in the table), and when it exceeded 15, it was considered defective (indicated by × in the table). ..

(Heat test evaluation of molded products)
The test piece prepared above was placed in an Inert oven IPHH-201M manufactured by ESPEC, and a heating test was performed at 200 ° C. for 72 hours.
Next, the surface of each test piece was visually observed. The state after the heating test was evaluated according to the following criteria. The results are shown in Tables 1 to 3.
⊚: Colorless and transparent.
◯: Transparent and usable, but slightly colored.
X: There is cloudiness or deep coloring.

Tables 1 to 3 also show the raw materials, blending ratios, and evaluation results of each Example and Comparative Example.

The aromatic polycarbonate resin compositions of Examples 1 to 13 contain an aromatic polycarbonate resin (A), a polysiloxane (B), a fatty acid ester (C), and a specific aromatic compound (D), and if necessary, phosphorus. The system antioxidant (E), the epoxy compound (F), and the acrylic resin (G) are each contained in a specific ratio. Therefore, the test piece formed from the aromatic polycarbonate resin composition has a high integrated transmittance, a low yellowness, and almost no deterioration after the heating test.

The molded product obtained by molding such an aromatic polycarbonate resin composition has a small yellowness and an excellent hue, and there is almost no deterioration after the heating test.

On the other hand, the molded product obtained by molding the aromatic polycarbonate resin composition of Comparative Examples 1 to 5 was inferior in at least one of the brightness, hue, and the result after the heating test.

As described above, an embodiment has been described as an example of the technique in the present invention. A detailed explanation was provided for that purpose.

Therefore, the components described in the detailed description include not only the components essential for solving the problem, but also the components not essential for solving the problem in order to illustrate the above technique. obtain. Therefore, the fact that those non-essential components are described in the detailed description should not immediately determine that those non-essential components are essential.

Further, since the above-described embodiment is for exemplifying the technique of the present invention, various changes, replacements, additions, omissions, etc. can be made within the scope of claims or the equivalent scope thereof.

The aromatic polycarbonate resin composition of the present invention is excellent in thermal stability and weather resistance without impairing the inherent properties of the polycarbonate resin such as heat resistance and mechanical strength, and the aromatic polycarbonate resin composition of the present invention. Even when the molded product containing the composition is heated, it is excellent in appearance and optical properties. Therefore, for example, even when the light guide plate surface of a thin light guide plate having a thickness of about 0.3 mm is continuously heated by long-term irradiation, the hue of the obtained light guide plate changes and the appearance changes. The industrial utility value is extremely high without deterioration of optical characteristics.

Claims (14)

An aromatic polycarbonate resin composition containing an aromatic polycarbonate resin (A), a polysiloxane compound (B), a fatty acid ester (C), and an aromatic compound (D) represented by the following formula, which is an aromatic polycarbonate resin. (A) 0.01 to 1.0 parts by weight of polysiloxane compound (B), 0.01 to 0.7 parts by weight of fatty acid ester (C), and aromatic compound (D) with respect to 100 parts by weight. Aromatic polycarbonate resin composition containing 0.0001 parts by weight or more and less than 0.05 parts by weight.
formula:
The aromatic polycarbonate resin composition according to claim 1, wherein the polysiloxane compound (B) is a polysiloxane compound containing at least one group selected from an alkoxy group, a vinyl group and a phenyl group. The aromatic polycarbonate resin composition according to claim 1, wherein the polysiloxane compound (B) is 1,5,5-tetramethyl-3,3-diphenyltrisiloxane. The aromatic polycarbonate resin composition according to claim 1, wherein the fatty acid ester (C) is a condensed compound of an aliphatic carboxylic acid and an alcohol. The aromatic polycarbonate resin composition according to claim 1, wherein the fatty acid ester (C) is glycerin monostearate or pentaerythritol stearate. The first aspect of claim 1, wherein 0.01 to 0.3 parts by mass of a phosphorus-based antioxidant (E) having the following phosphite ester structure is further contained in 100 parts by weight of the aromatic polycarbonate resin (A). Aromatic polycarbonate resin composition.
The aromatic polycarbonate resin composition according to claim 1, further containing 0.001 to 0.2 parts by mass of the epoxy compound (F) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). The aromatic polycarbonate resin composition according to claim 7, wherein the epoxy compound (F) contains 3', 4'-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate. The aromatic polycarbonate resin composition according to claim 1, further containing 0.01 to 0.5 parts by mass of acrylic resin (G) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). The aromatic polycarbonate resin composition according to claim 9, wherein the acrylic resin (G) is polymethyl methacrylate. Any of claims 1 to 10, further comprising at least one selected from the group containing a heat stabilizer, an antioxidant, a colorant, a mold release agent, a softener, an antistatic agent and an impact improving agent. Aromatic polycarbonate resin composition according to. An optical molded product containing the aromatic polycarbonate resin composition according to any one of claims 1 to 10. The optical molded product according to claim 12, wherein the optical molded product contains a molded product selected from a light guide film, a vehicle light guide, and a nameplate. A method for producing an optically molded product, which comprises molding the aromatic polycarbonate resin composition according to any one of claims 1 to 10.