JP2021088712A - Aromatic polycarbonate resin composition and optical molded article - Google Patents

Abstract

To provide an aromatic polycarbonate resin composition having excellent thermal stability without losing characteristics such as heat resistance and mechanical strength intrinsic to a polycarbonate resin, having a high ray transmittance, and hardly causing reduction in transparency even when a molded article of the composition having about 0.3 mm thickness produced by molding is exposed to high temperature due to irradiation with light or the like for an extremely long period of time.SOLUTION: The aromatic polycarbonate resin composition is a polycarbonate-based resin composition comprising an aromatic polycarbonate resin (A), a polyether derivative (B) and a specific aromatic compound (C), and the composition contains the polyether derivative (B) by 0.1 to 2.0 pts.wt. and the aromatic compound (C) by 0.0001 or more and less than 0.05 pts.wt. with respect to 100 pts.wt. of the aromatic polycarbonate resin (A).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 name plates.

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 Documents 3 to 6, various resin compositions in which a polycarbonate resin and another material are used in combination to obtain excellent light transmittance and improve the brightness of an optical member have been proposed. Has been done.

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 Japanese Unexamined Patent Publication No. 2001-215336 Japanese Unexamined Patent Publication No. 2004-051700

However, the polycarbonate resin compositions disclosed in Patent Documents 3 to 6 have recently been required as a material for a light guide plate (particularly, there is a requirement that the light transmittance does not decrease even when molding is performed at a high temperature for thin-wall molding). ) 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, the transparency does not decrease much (for example). Materials (with less cloudiness or less coloring) are being sought after.

INDUSTRIAL APPLICABILITY The present invention does not impair the inherent properties of 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 lose 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. With the goal.

As a result of diligent studies to solve such a problem, the present inventors have conducted an aromatic study containing a predetermined amount of an aromatic polycarbonate resin (A), a polyether derivative (B) and a specific aromatic compound (C). The polycarbonate resin composition is excellent in thermal stability, has high light transmittance, and is molded into a thin molding of about 0.3 mm without impairing the inherent properties of the polycarbonate resin such as heat resistance and mechanical strength. The present invention has been completed by finding that even when the product (light guide plate) is exposed for a long period of time under high temperature conditions such as irradiation with a light source, the decrease in transparency is small (white turbidity or coloring is unlikely to occur).

That is, the present invention is an aromatic polycarbonate resin composition containing an aromatic polycarbonate resin (A), a polyether derivative (B), and an aromatic compound (C) represented by the following formula. (A) 0.1 parts by weight or more and 2.0 parts by weight or less of the polycarbonate derivative (B) and 0.0001 parts by weight or more and 0.05 parts by weight of the aromatic compound (C) with respect to 100 parts by weight. Provided are an aromatic polycarbonate resin composition containing less than or less than an aromatic polycarbonate resin composition 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 sun 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.

Hereinafter, embodiments will be described in detail. 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 description in order 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 polyether derivative (B) and a specific aromatic compound (C), and if necessary, a phosphorus-based antioxidant. (D), the epoxy compound (E) and / or other components and the like can be contained.

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 nothing. 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. Representative examples include polycarbonate resins 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'-dihydroxydiphenylsulfoxide, 4,4'-dihydroxy-3,3'-dimethyldiphenylsulfoxide; 4,4'-dihydroxydiphenylsulfone, 4,4'-dihydroxy- Examples of dihydroxydiarylsulfones such as 3,3'-dimethyldiphenylsulfone 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) -heptane, 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 polyether derivative (B) is a derivative of the polyether compound, and is not particularly limited as long as the aromatic polycarbonate resin composition of the object of the present invention can be obtained. Absent. As a typical example, such a polyether derivative includes a polyether derivative represented by the following formula (1).

Equation (1):
RO- (X-O) m (YO) n-R'
(In the formula, R and R'independently represent a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, X is a linear alkylene group or a branched alkylene group having 2 to 4 carbon atoms, and Y is a branched alkylene group. It represents a linear alkylene group or a branched alkylene group having 2 to 5 carbon atoms, and X and Y may be the same or different, and m and n each independently represent 3 to 60, and m + n is. 6 to 120 are shown.)
The weight average molecular weight of the polyether derivative represented by the formula (1) is preferably 500 to 8000, and more preferably 1000 to 4000.
As the polyether derivative represented by the formula (1), a commercially available product can be used.

The polyether derivative represented by the formula (1) is
The following formula (1-1):
RO- (X-O) m (YO) n-R'
(In the formula, R and R'independently represent a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, X is a linear alkylene group having 2 to 4 carbon atoms, and Y is 2 to 2 carbon atoms. 5 branched alkylene groups, m and n independently represent 3 to 60, and m + n represent 8 to 90).
The weight average molecular weight of the polyether derivative represented by the formula (1-1) is preferably 500 to 8000, and more preferably 1000 to 4000.
As the polyether derivative represented by the formula (1-1), a commercially available product can be used.

The polyether derivative represented by the formula (1) is
The following formula (1-2):
RO- (X-O) m (YO) n-R'
(In the formula, R and R'independently represent a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, X is a linear alkylene group having 2 to 4 carbon atoms, and Y is 2 to 2 carbon atoms. 5 shows a linear alkylene group, X and Y may be the same or different, m and n independently represent 3 to 60, and m + n represents 6 to 100).
The weight average molecular weight of the polyether derivative represented by the formula (1-2) is preferably 500 to 8000, and more preferably 1000 to 4000.
As the polyether derivative represented by the formula (1-2), a commercially available product can be used.

The polyether derivative represented by the formula (1) is
The following formula (1-3):
RO- (X-O) m (YO) n-R'
(In the formula, R and R'independently represent a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, X is a branched alkylene group having 2 to 4 carbon atoms, and Y is 2 to 5 carbon atoms. X and Y may be the same or different, m and n independently represent 3 to 60, and m + n represents 6 to 120.)
The weight average molecular weight of the polyether derivative represented by the formula (1-3) is preferably 500 to 8000, and more preferably 1000 to 4000.
As the polyether derivative represented by the formula (1-3), a commercially available product can be used.

The polyether derivative represented by the formula (1) is a polyether derivative represented by the following formula (2), a polyether derivative represented by the formula (3), a polyether derivative represented by the formula (4), and the like. A polyether derivative represented by the formula (5), a polyether derivative represented by the formula (6), a polyether derivative represented by the formula (7), a polyether derivative represented by the formula (8), and a formula ( It is preferable to contain at least one selected from the group containing the polyether derivative represented by 9) and the polyether derivative represented by the formula (10).

The polyether derivative represented by the formula (1-1) is a polyether derivative represented by the following formula (2), a polyether derivative represented by the formula (3), and a polyether represented by the formula (4). It is preferable to contain at least one selected from the group containing the derivative, the polyether derivative represented by the formula (5), and the polyether derivative represented by the formula (6).

The polyether derivative represented by the formula (1-2) includes at least one selected from the group containing the polyether derivative represented by the formula (7) and the polyether derivative represented by the formula (8). Is preferable.

The polyether derivative represented by the formula (1-3) includes at least one selected from the group containing the polyether derivative represented by the formula (9) and the polyether derivative represented by the formula (10). Is preferable.

Equation (2):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.)

As the polyether derivative represented by the formula (2), a modified glycol containing a tetramethylene glycol unit and a propylene glycol unit is suitable. As such a polyether derivative, a commercially available product can be used, for example, Polyserine DCB-1000 (weight average molecular weight 1000), Polyserine DCB-2000 (weight average molecular weight 2000), Polyserine DCB manufactured by Nichiyu Co., Ltd. -4000 (weight average molecular weight 4000) and the like can be used.
The weight average molecular weight of the polyether derivative represented by the formula (2) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (3):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH ₂ CH ₂ CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.)

As the polyether derivative represented by the formula (3), a modified glycol containing a tetramethylene glycol unit and a 2-methyltetramethylene glycol unit is preferable. As such a polyether derivative, a commercially available product can be used, for example, PTG-L1000 (weight average molecular weight 1000), PTG-L2000 (weight average molecular weight 2000), or PTG manufactured by Hodogaya Chemical Industry Co., Ltd. -L3000 (weight average molecular weight 3000) or the like can be used.
The weight average molecular weight of the polyether derivative represented by the formula (3) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (4):
HO- (CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.)

As the polyether derivative represented by the formula (4), a modified glycol containing an ethylene glycol unit and a propylene glycol unit is preferable. As such a polyether derivative, a commercially available product can be used, and for example, NOF Corporation, Unilube 50DE-25 (weight average molecular weight 1750), Unilube 75DE-25 (weight average molecular weight 1400) and the like are used. it can.
The weight average molecular weight of the polyether derivative represented by the formula (4) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (5):
RO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, R represents an alkyl group having 1 to 30 carbon atoms, m and n independently represent 3 to 60, and m + n represents 8 to 90.)

As the polyether derivative represented by the formula (5), a modified glycol having a one-terminal butyl group or a one-terminal stearyl group containing a tetramethylene glycol unit and a propylene glycol unit is suitable. As such a polyether derivative, a commercially available product can be used, for example, NOF CORPORATION, Polyserine BC-1000 (single-ended butyl group, weight average molecular weight 1000), Polyserine SC-1000 (single-ended stearyl). Group, weight average molecular weight 1000) and the like can be used.
The weight average molecular weight of the polyether derivative represented by the formula (5) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (6):
RO- (CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, R represents an alkyl group having 1 to 30 carbon atoms, m and n independently represent 3 to 60, and m + n represents 8 to 90.)

As the polyether derivative represented by the formula (6), a modified glycol having a one-terminal butyl group or a one-terminal stearyl group containing an ethylene glycol unit and a propylene glycol unit is suitable. As such a polyether derivative, a commercially available product can be used, for example, Unilube 50MB-11 (one-ended butyl group, weight average molecular weight 1000), Unilube 50MB-26 (one-ended butyl) manufactured by Nichiyu Co., Ltd. Group, weight average molecular weight 2000), Unilube 50MB-72 (one-ended butyl group, weight average molecular weight 3000), Unilube 10MS-250KB (one-ended stearyl group, weight average molecular weight 2000) and the like can be used.
The weight average molecular weight of the polyether derivative represented by the formula (6) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (7):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH ₂ CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.)

As the polyether derivative represented by the formula (7), a modified glycol containing a tetramethylene glycol unit and an ethylene glycol unit is preferable. As such a polyether derivative, a commercially available product can be used, and for example, NOF Corporation, Polyserine DC3000E (weight average molecular weight 3000), Polyserine DC1800E (weight average molecular weight 1800) and the like can be used.
The weight average molecular weight of the polyether derivative represented by the formula (7) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (8):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) p-H
(In the formula, p indicates 6 to 100.)

As the polyether derivative represented by the formula (8), polytetramethylene glycol is preferable. Commercially available products can be used as such polyether derivatives, for example, PTG-650SN (weight average molecular weight 650), PTG-850SN (weight average molecular weight 850), PTG-manufactured by Hodogaya Chemical Industry Co., Ltd. 1000SN (weight average molecular weight 1000), PTG-1400SN (weight average molecular weight 1400), PTG-2000SN (weight average molecular weight 2000), PTG-2900 (weight average molecular weight 2900) and the like can be used.
The weight average molecular weight of the polyether derivative (polytetramethylene glycol) represented by the formula (8) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (9):
Formula: HO- (CH (CH ₃ ) CH ₂ O) q-H
(In the formula, q indicates 7 to 120.)

Polypropylene glycol is preferable as the polyether derivative represented by the formula (9). As such a polyether derivative, a commercially available product can be used, for example, Polyglycol P2000P (weight average molecular weight 2000) manufactured by Dow Chemical Co., Ltd., Uniol D-1000 (weight average molecular weight 1000) manufactured by Nichiyu Co., Ltd., Uniol D-2000 (weight average molecular weight 2000), Uniol D-4000 (weight average molecular weight 4000) and the like can be used.
The weight average molecular weight of the polyether derivative (polypropylene glycol) represented by the formula (9) is preferably 500 to 8000, and more preferably 1000 to 4000.

Equation (10):
HO- (CH (C ₂ H ₅ ) CH ₂ O) r-H
(In the formula, r indicates 6 to 100.)

As the polyether derivative represented by the formula (10), polybutylene glycol is preferable. As such a polyether derivative, a commercially available product can be used, for example, NOF CORPORATION, Uniol PB-500 (weight average molecular weight 500), Uniol PB-1000 (weight average molecular weight 1000), Uniol PB. -2000 (weight average molecular weight 2000) or the like can be used.
The weight average molecular weight of the polyether derivative (polybutylene glycol) represented by the formula (10) is preferably 500 to 8000, and more preferably 1000 to 4000.

The polyether derivative represented by the general formula (1) has generally high heat resistance, and a molded product obtained by molding an aromatic polycarbonate resin composition containing the polyether derivative at a high temperature has high brightness and light transmittance.

Each of the polyether derivatives represented by the formulas (1) to (10) is described in each formula as long as the aromatic polycarbonate resin composition and the optical molded product intended by the present invention can be obtained. It can include repeating units other than repeating units. Examples of such a repeating unit include a repeating unit based on impurities that can be contained in the starting material of the polyether derivative, a repeating unit based on an initiator (polymerization initiator) used in the polymerization, and the like. it can.

（式中、ｍ１＋ｍ２が、式（２）のｍに対応し、ｎ１＋ｎ２が、式（２）のｎに各々対応する。）
式（２−２）で表されるポリエーテル誘導体の重量平均分子量は、５００〜８０００であることが好ましく、１０００〜４０００であることがより好ましい。 When a polymerization initiator is used, the following compounds can be exemplified as the polymerization initiator. Examples thereof include hydrogenated bisphenol A, bisphenol A, isosorbide, glycerin, pentaerythritol, sorbitol, glucose and the like.
As a polyether derivative containing a repeating unit based on such a polymerization initiator, for example, Polyserine 60DB-2000H (manufactured by NOF CORPORATION), which can correspond to the above formula (2), can be exemplified (Formula 2-). 2).
Equation (2-2):

(In the equation, m1 + m2 corresponds to m in the equation (2), and n1 + n2 corresponds to n in the equation (2), respectively.)
The weight average molecular weight of the polyether derivative represented by the formula (2-2) is preferably 500 to 8000, and more preferably 1000 to 4000.

Further, since the polyether derivative (B) used in the present invention has an appropriate lipophilicity, it is also excellent in compatibility with the aromatic polycarbonate resin (A). Therefore, the polyether derivative (B) can be used. The transparency of the molded product obtained from the blended aromatic polycarbonate resin composition can be maintained without deteriorating the transparency. The weight average molecular weight of such a polyether derivative (B) is preferably 500 to 8000, more preferably 1000 to 4000.

Furthermore, the CPR (unit: dimensionless) (Controlled Polymerization Rate) of the polyether derivative (B) used in the present invention: an index indicating the amount of basic substances in the polyether derivative: JIS K1557-4. (Measured) is preferably 2.0 or less, and more preferably 1.0 or less. When the CPR is 2.0 or less, the polyether derivative (B) has excellent compatibility with the polycarbonate resin, decomposition and deterioration are suppressed, and storage stability is excellent, and the hue of the obtained polycarbonate resin composition is excellent. Is unlikely to have an adverse effect on. For example, the CPR of the polyserine DCB-2000 corresponding to the polyether derivative (B) represented by the above formula (2) is less than 1.0, and the polyether derivative represented by the above formula (2) ( The CPR of Polyserine 60DB-2000H (manufactured by Nichiyu Co., Ltd.) corresponding to B) is less than 1.0, and PTG-1000SN (PTG-1000SN) corresponding to the polyether derivative (B) represented by the above formula (8). The CPR of Hodogaya Chemical Industry Co., Ltd.) is less than 1.0.

Furthermore, the pH of the polyether derivative (B) used in the present invention (measured according to JIS K1557-5) is preferably 5.0 or more and less than 7.5, preferably 6. More preferably, it is 0 or more and less than 7.0. When the pH of the polyether derivative (B) is 5.0 or more and less than 7.5, decomposition and deterioration are suppressed, storage stability is excellent, and the hue of the obtained polycarbonate resin composition is less likely to be adversely affected. .. For example, the pH of the polyserine DCB-2000 corresponding to the polyether derivative (B) represented by the above formula (2) is 6.7, and the pH of the polyether derivative (B) represented by the above formula (2) is 6.7. ), The pH of Polyserine 60DB-2000H (manufactured by Nichiyu Co., Ltd.) is 6.8, and PTG-1000SN (Hodoya) corresponding to the polyether derivative (B) represented by the above formula (8). The pH of (manufactured by Chemical Industry Co., Ltd.) is 6.7.

Further, the temperature at which the weight of the polyether derivative (B) used in the present invention is 90% (or the temperature at which the weight loss rate is 10%) (measured by thermogravimetric analysis according to JIS K7120) is determined. The temperature is preferably 300 ° C. or higher, more preferably 330 ° C. or higher. When the temperature at which the weight of the polyether derivative (B) is 90% is 300 ° C. or higher, decomposition and deterioration are suppressed, storage stability is excellent, and the hue of the obtained polycarbonate resin composition is less likely to be adversely affected. For example, the temperature at which 90% by weight of the polyserine DCB-2000 corresponding to the polyether derivative (B) represented by the above formula (2) is 330 ° C. is 330 ° C., and the poly represented by the above formula (2). The temperature at which 90% by weight of the polyserine 60DB-2000H (manufactured by NOF CORPORATION) corresponding to the ether derivative (B) is 400 ° C.

The amount of the polyether derivative is 0.1 to 2.0 parts by weight, preferably 0.3 to 1.8 parts by weight, based on 100 parts by weight of the aromatic polycarbonate resin (A). When the amount of the polyether derivative is less than 0.1 parts by weight, the effect of improving the light transmittance and the hue may be insufficient. On the contrary, when the amount of the polyether derivative exceeds 2.0 parts by weight, the clouding rate may increase and the light transmittance may decrease.

The aromatic polycarbonate resin composition of the embodiment of the present invention contains the aromatic compound (C) of the following formula as an essential component together with the polyether derivative (B). As described above, by using the polyether derivative (B) and the aromatic compound (C) in combination, the aromatic polycarbonate resin composition obtained can be obtained while maintaining the excellent optical properties required for the optically molded product. It is possible to prevent deterioration such as deterioration and aging deterioration due to the usage status of the molded product.

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 polyether derivative (B) in the resin composition can be modified, impairing the transparency (luminance or light transmission) expected of the aromatic polycarbonate resin composition used in ordinary optical molded products, and molding. White turbidity or coloring (light to dark coloring) phenomenon 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 (C) of the following formula is particularly effective as a compound that suppresses deterioration such as modification of the polyether derivative (B). By adding the specific aromatic compound (C) to the polyether derivative (B) in advance or before melt-kneading to obtain the aromatic polycarbonate resin composition, the polyether derivative (B) in the molded product is added. ) Can be suppressed to reduce or alleviate the white turbidity or coloring (light to dark coloring) phenomenon, and the present invention has been completed.
formula:

The amount of the aromatic compound (C) 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 0.0005 weight by weight. More than 0.003 parts by weight is preferable. When the amount of the aromatic compound (C) is less than 0.0001 parts by weight, the effect of suppressing cloudiness or coloring is insufficient. On the contrary, when the amount of the aromatic compound (C) is 0.05 parts by weight or more, it may not be possible to achieve the high level of light transmittance and hue required for the optical molded product, which is not desirable.

The aromatic polycarbonate resin composition of the embodiment of the present invention can further contain a phosphorus-based antioxidant (D). As described above, when the aromatic polycarbonate resin composition contains the polyether derivative (B), the specific aromatic compound (C), and the phosphorus-based antioxidant (D) at the same time, excellent optics required for an optically molded product is required. While maintaining and improving the characteristics, in particular, it is possible to prevent deterioration such as deterioration due to usage conditions and deterioration due to aging conditions without deteriorating the initial optical characteristics of the molded product made of the obtained aromatic polycarbonate resin composition. ..

The phosphorus-based antioxidant is not particularly limited as long as the aromatic polycarbonate resin composition intended by the present invention can be obtained, but it is preferable to contain a phosphite ester compound having the following phosphite ester structure. ..

In the aromatic polycarbonate resin composition of the embodiment of the present invention, the phosphorus-based antioxidant (D) is a phosphite ester compound represented by the following formula (11) and a sub-phosphate compound represented by the following formula (12). It is preferable to contain at least one compound selected from a phosphoric acid ester compound, a phosphite ester compound represented by the following formula (13), and a phosphite ester compound represented by the following formula (14).

The phosphorus-based antioxidant (D) preferably contains, for example, a compound represented by the following formula (11).

（式中、Ｒ^１は、炭素数１〜２０のアルキル基を示し、ａは、０〜３の整数を示す） Equation (11):

(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 formula (11), 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 (11) 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 (D) preferably contains, for example, a compound represented by the following formula (12).

（式中、Ｒ^２、Ｒ^３、Ｒ^５及びＲ^６は、それぞれ独立して、水素原子、炭素数１〜８のアルキル基、炭素数５〜８のシクロアルキル基、炭素数６〜１２のアルキルシクロアルキル基、炭素数７〜１２のアラルキル基又はフェニル基を示す。Ｒ^４は、水素原子又は炭素数１〜８のアルキル基を示す。Ｘは、単結合、硫黄原子又は式：−ＣＨＲ^７−（ここで、Ｒ^７は、水素原子、炭素数１〜８のアルキル基又は炭素数５〜８のシクロアルキル基を示す）で表される基を示す。Ａは、炭素数１〜８のアルキレン基又は式：＊−ＣＯＲ^８−（ここで、Ｒ^８は、単結合又は炭素数１〜８のアルキレン基を示し、＊は、酸素側の結合手であることを示す）で表される基を示す。Ｙ及びＺは、いずれか一方がヒドロキシル基、炭素数１〜８のアルコキシ基又は炭素数７〜１２のアラルキルオキシ基を示し、もう一方が水素原子又は炭素数１〜８のアルキル基を示す。） Equation (12):

(In the formula, R ² , R ³ , R ⁵ and R ⁶ each 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 12 carbon atoms. Alkylcycloalkyl group, aralkyl group or phenyl group having 7 to 12 carbon atoms. R ⁴ represents a hydrogen atom or an 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 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 has a hydrogen atom or 1 to 8 carbon atoms. Indicates an alkyl group.)

In formula (12), 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 thereof include a group, a t-pentyl group, an i-octyl group, a t-octyl group, and a 2-ethylhexyl group. 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 a number of carbon atoms such as 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, a t-butyl group, and a t-pentyl group. It is preferably an alkyl group of 1 to 5, 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 other alkyl groups having 1 to 5 carbon atoms are more preferable.

In formula (12), 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 (12), X represents 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 description 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 (12), 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 (12), 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. Indicates 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 (12) include 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl) propoxy. ] Dibenzo [d, f] [1,3,2] dioxaphosphepine, 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 can be mentioned. .. 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, Sumilyzer GP manufactured by Sumitomo Chemical Co., Ltd. ("" "Smilizer" is commercially available as a registered trademark).

The phosphorus-based antioxidant (D) preferably contains, for example, a compound represented by the following formula (13).

（式中、Ｒ^９及びＲ^１０は、それぞれ独立して、炭素数１〜２０のアルキル基又はアルキル基で置換されていてもよいアリール基を示し、ｂ及びｃは、それぞれ独立して、０〜３の整数を示す。） Equation (13):

(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 (13) 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 (D) preferably contains, for example, a compound represented by the following formula (14).

Equation (14):

(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 independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms. D to g are independent of each other. Then, it is 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 (14).)

Specific examples of the compound represented by the formula (14) include bis (2,4-dicumylphenyl) pentaerythritol diphosphite. This is made by Dover Chemical, trade name "Doverphos (registered trademark) S-9228", made by ADEKA, trade name "ADEKA STAB PEP-45" (bis (2,4-dikumilphenyl) pentaerythritol diphosphite). It is commercially available as.

The above-mentioned aromatic polycarbonate resin composition satisfying at least one selected from the following is preferable:
The phosphite ester compound represented by the formula (11) contains tris (2,4-di-t-butylphenyl) phosphite;
The phosphite ester compound represented by the formula (12) is 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl). ) Propoxy] dibenzo [d, f] [1,3,2] containing dioxaphosfepine;
The phosphite ester compound represented by the formula (13) is 3,9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3, 9-Diphosphaspiro [5,5] undecane; and the phosphite ester compound represented by the above formula (14) contains bis (2,4-dicumylphenyl) pentaerythritol diphosphite.

The amount of the phosphorus-based antioxidant (D) is preferably up to 0.5 parts by weight, more preferably 0.02 to 0.2 parts by weight, based on 100 parts by weight of the aromatic polycarbonate resin (A).

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. It can be appropriately used depending on the use of the molded product obtained by molding the composition.

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-chromo-2H-benzotriazole, 2- (3,5-di-tert-pentyl-2-hydroxyphenyl) -2H-benzotriazole, 2- (2H-benzotriazole-2-yl) -4-methyl-6- ( 3,4,5,6-tellahydrophabilmidyl phenyl) phenyl, 2- (2-hydroxy-4-octyloxyphenyl) -2H-benzotriazole, 2- (2-hydroxy-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) phenyl] 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 Chemical 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.

The aromatic polycarbonate resin composition of the embodiment of the present invention can contain the epoxy compound (E). As described above, when the aromatic polycarbonate resin composition contains the polyether derivative (B), the specific aromatic compound (C) and the epoxy compound (E) at the same time, the excellent optical properties required for the optically molded product are maintained. While improving, the initial optical characteristics of the obtained molded product made of the aromatic polycarbonate resin composition are not deteriorated, and deterioration such as deterioration due to usage conditions and aging deterioration can be prevented.

The epoxy compound (E) 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 (E) 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 (E) 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 (E) with respect to 100 parts by mass of the aromatic polycarbonate resin (A), and is 0. It is more preferable to contain .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 (E) is contained with respect to 100 parts by mass of the aromatic polycarbonate resin (A). While maintaining and improving the excellent optical characteristics required for the above, the initial optical characteristics (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 such deterioration.

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 polyether derivative (B) and a specific aromatic compound (C), and if necessary, a phosphorus-based antioxidant. Examples of a production method in which (D), the epoxy compound (E), the various additives, and a polymer 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 (C) may be mixed before melt-kneading, or may be added or mixed with the polyether derivative (B) 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 name plate, 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 changes, replacements, additions, omissions, etc. are made as appropriate.

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 Viscous average molecular weight: 15,000, SD Polycarbonate 200-80 (trade name) manufactured by Sumika Polycarbonate Limited, "SD Polycarbonate" is a registered trademark of Sumika Polycarbonate Limited , Hereinafter also referred to as "PC" or (A1)

2. Polyester derivative (B):
2-1. Modified glycol consisting of tetramethylene glycol unit and propylene glycol unit (random copolymerization)
Weight average molecular weight: 2000, pH: 6.7 (JIS K1557-5), Polyserine DCB-2000 (trade name) manufactured by NOF CORPORATION, also referred to as (B1) below.

2-2. Modified glycol consisting of tetramethylene glycol unit and propylene glycol unit (random copolymerization)
Weight average molecular weight: 1000, pH: 6.8 (JIS K1557-5), Polyserine DCB-1000 (trade name) manufactured by NOF CORPORATION, also referred to as (B2) below.

2-3. Modified glycol consisting of tetramethylene glycol unit and ethylene glycol unit (random copolymerization)
Weight average molecular weight: 3000, Polyserine DC-3000E (trade name) manufactured by NOF CORPORATION, also referred to as (B3) below.

2-4. It consists of a tetramethylene glycol unit and a propylene glycol unit, and is a modified glycol with a butyl group at one end (random copolymerization).
Weight average molecular weight: 1000, Polyserine BC-1000 (trade name) manufactured by NOF CORPORATION, also referred to as (B4) below.

2-5. Modified glycol consisting of ethylene glycol unit and propylene glycol unit (random copolymerization)
Weight average molecular weight: 1750, NOF Corporation Unilube 50DE-25 (trade name), hereinafter referred to as (B5)

2-6. It consists of an ethylene glycol unit and a propylene glycol unit, and is a modified glycol with a butyl group at one end (random copolymerization).
Weight average molecular weight: 2000, NOF Corporation Unilube 50MB-26 (trade name), also referred to as (B6) below.

2-7. Polypropylene glycol Weight average molecular weight: 2000, Dow Chemical's polyglycol P2000P (trade name), also referred to below (B7)

2-8. Polytetramethylene glycol Weight average molecular weight: 1000, PTG-1000SN (trade name) manufactured by Hodogaya Chemical Co., Ltd., also referred to as (B8) below.

2-9. Modified glycol consisting of tetramethylene glycol unit and 2-methyltetramethylene glycol unit (random copolymerization)
Weight average molecular weight: 2000, PTG-L2000 (trade name) manufactured by Hodogaya Chemical Co., Ltd., also referred to as (B9) below.

3. 3. Aromatic compound (C):
3,5-Di-t-Butyl-4-hydroxytoluene [manufactured by Wako Pure Chemical Industries, Ltd., also referred to as (C1)]

［ＢＡＳＦ社製のイルガフォス１６８（商品名）、以下（Ｄ１）ともいう］ 4. Phosphorus-based antioxidant (D):
4-1. Tris (2,4-di-t-butylphenyl) phosphite represented by the following formula

[Irgafos 168 (trade name) manufactured by BASF, also referred to as (D1)]

［住友化学（株）製のスミライザーＧＰ（商品名）、以下（Ｄ２）ともいう］ 4-2. 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl) propoxy] dibenzo [d, f] represented by the following formula. ] [1,3,2] Dioxaphosfepine

[Sumilyzer GP (trade name) manufactured by Sumitomo Chemical Co., Ltd., also referred to as (D2)]

［Ｄｏｖｅｒ Ｃｈｅｍｉｃａｌ社製のＤｏｖｅｒｐｈｏｓ Ｓ−９２２８（商品名）、以下（Ｄ３）ともいう］ 4-3. Bis (2,4-dicumylphenyl) pentaerythritol diphosphite (IUPAC name: 3,9-bis [2,4-bis (α, α-dimethylbenzyl) phenoxy] -2 represented by the following formula , 4,8,10-Tetraoxa-3,9-diphosphaspiro [5.5] undecane)

[Doverphos S-9228 (trade name) manufactured by Dover Chemical, hereinafter also referred to as (D3)]

［ＡＤＥＫＡ製のアデカスタブＰＥＰ−３６（商品名）、以下（Ｄ４）ともいう］ 4-4. Bis (2,6-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's ADEKA STAB PEP-36 (trade name), also referred to as (D4)]

5. Epoxy compound (E)
3', 4'-Epoxy Cyclohexyl Methyl-3,4-Epoxy Cyclohexylcarboxylate [Ceroxide 2021P (trade name) manufactured by Daicel Chemical Industries, Ltd., also referred to as (E1)]

(Examples 1 to 33 and Comparative Examples 1 and 2)
Each of the above raw materials was put into a tumbler at the ratios shown in Tables 1 to 4, dried and mixed 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 the aromatic polycarbonate resin compositions of Examples 1 to 33 and Comparative Examples 1 and 2.
However, in Example 7, the compound (C) and the compound (B) were mixed in advance and then mixed with other raw materials to obtain pellets of the aromatic polycarbonate resin composition of Example 7.
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 to 4.

(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 a molding temperature of 360 ° C. and a mold temperature of 80 ° C. using an injection molding machine (ROBOSHOT S2000i100A manufactured by FANUC Co., Ltd.). 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-light path measurement accessory, and a 50 W halogen lamp is used as the light source. The light source front mask is 5.6 mm x 2.8 mm, and the sample front mask is 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 rounded off to the tens place to obtain each integrated transmittance. A cumulative transmittance of 31,000 or more was considered good (indicated by ⊚ in the table), less than 31,000 was regarded as usable (indicated by ◯ in the table), and less than 25,000 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 is 15 or less, it is considered good (indicated by ◎ in the table), when it exceeds 15, it is considered usable (indicated by ○ in the table), and when it exceeds 30, it is considered as 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 4.
⊚: Colorless and transparent.
◯: Transparent and usable, but slightly colored.
X: There is opacity or dark coloring.

Tables 1 to 4 also show the raw materials, blending ratios, and evaluation results of each Example and Comparative Example.

a)：(C1)を(B1)と混合後、他の原料と混合した。

a): (C1) was mixed with (B1) and then mixed with other raw materials.

b):白濁した。
c):試験をしなかった。

b): Cloudy.
c): No test was done.

The aromatic polycarbonate resin composition of Examples 1 to 33 contains an aromatic polycarbonate resin (A), a polyether derivative (B), and a specific aromatic compound (C), and if necessary, a phosphorus-based antioxidant (D). ) Etc. are included in each 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, in the aromatic polycarbonate resin compositions of Comparative Examples 1 and 2, since the amount of the polyether derivative (Compound B1) is large, the integrated transmittance is low and the yellowness is high. As described above, the molded product obtained by molding the aromatic polycarbonate resin composition of Comparative Example 1 is inferior in brightness and hue. Moreover, the result after the heating test was also inferior.

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, among the components described in the detailed description, not only the components essential for solving the problem but also the components not essential for solving the problem are included in order to exemplify the above technology. 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 has excellent 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.

Related Applications This application is based on Application No. 2018-11641 filed in Japan on January 26, 2018 and Application No. 2018-156195 filed in Japan on August 23, 2018. Claim priority under the Articles. The contents of these basic applications are incorporated herein by reference.

(Examples (or reference examples) 1-33 and Comparative Examples 1 and 2)
Each of the above raw materials was put into a tumbler at the ratios shown in Tables 1 to 4, dried and mixed 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 the aromatic polycarbonate resin compositions of Examples (or Reference Examples) 1-33 and Comparative Examples 1 and 2.
However, for Reference Example 7 , the compound (C) and the compound (B) were mixed in advance and then mixed with other raw materials to obtain pellets of the aromatic polycarbonate resin composition of Reference Example 7.
The pellets obtained in Examples (or Reference Examples) and Comparative Examples are both substantially elliptical columnar, and the average value of each of the aggregates consisting of 100 pellets is about 5.1 mm to about 5. The average value of the major axis of the ellipse of cross section 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.

Tables 1 to 4 also show the raw materials, blending ratios, and evaluation results of each Example (or reference example) and Comparative Example.

The aromatic polycarbonate resin compositions of Examples 11, 20, 22, 24, 25, 27, and 31 contain an aromatic polycarbonate resin (A), a polyether derivative (B), and a specific aromatic compound (C). If necessary, a phosphorus-based antioxidant (D) or the like is 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.

２．
前記ポリエーテル誘導体（Ｂ）が、下記式（１）で表され、５００〜８０００の重量平均分子量を有するポリエーテル誘導体を含む、上記１に記載の芳香族ポリカーボネート樹脂組成物。
式（１）：
ＲＯ−（Ｘ−Ｏ）ｍ（Ｙ−Ｏ）ｎ−Ｒ’
（式中、ＲおよびＲ’は、それぞれ独立して水素原子または炭素数１〜３０のアルキル基を示し、Ｘは、炭素数２〜４の直鎖アルキレン基又は分岐アルキレン基を示し、Ｙは、炭素数２〜５の直鎖アルキレン基又は分岐アルキレン基を示し、ＸとＹは同一であっても異なっていても良く、ｍ及びｎは、各々独立して、３〜６０を示し、ｍ＋ｎは６〜１２０を示す。）
３．
式（１）で表されるポリエーテル誘導体は、下記式（２）で表されるポリエーテル誘導体、式（３）で表されるポリエーテル誘導体、式（４）で表されるポリエーテル誘導体、式（５）で表されるポリエーテル誘導体、式（６）で表されるポリエーテル誘導体、式（７）で表されるポリエーテル誘導体、式（８）で表されるポリエーテル誘導体、式（９）で表されるポリエーテル誘導体及び式（１０）で表されるポリエーテル誘導体から選択される少なくとも１種を含む、上記２に記載の芳香族ポリカーボネート樹脂組成物。
式（２）：
ＨＯ−（ＣＨ _２ ＣＨ _２ ＣＨ _２ ＣＨ _２ Ｏ）ｍ（ＣＨ（ＣＨ _３ ）ＣＨ _２ Ｏ）ｎ−Ｈ
（式中、ｍ及びｎは、各々独立して、３〜６０を示し、ｍ＋ｎは、８〜９０を示す。）；
式（３）：
ＨＯ−（ＣＨ _２ ＣＨ _２ ＣＨ _２ ＣＨ _２ Ｏ）ｍ（ＣＨ _２ ＣＨ _２ ＣＨ（ＣＨ _３ ）ＣＨ _２ Ｏ）ｎ−Ｈ
（式中、ｍ及びｎは、各々独立して、３〜６０を示し、ｍ＋ｎは、８〜９０を示す。）；
式（４）：
ＨＯ−（ＣＨ _２ ＣＨ _２ Ｏ）ｍ（ＣＨ（ＣＨ _３ ）ＣＨ _２ Ｏ）ｎ−Ｈ
（式中、ｍ及びｎは、各々独立して、３〜６０を示し、ｍ＋ｎは、８〜９０を示す。）；
式（５）：
ＲＯ−（ＣＨ _２ ＣＨ _２ ＣＨ _２ ＣＨ _２ Ｏ）ｍ（ＣＨ（ＣＨ _３ ）ＣＨ _２ Ｏ）ｎ−Ｈ
（式中、Ｒは炭素数１〜３０のアルキル基を示し、ｍ及びｎは、各々独立して、３〜６０を示し、ｍ＋ｎは、８〜９０を示す。）；
式（６）：
ＲＯ−（ＣＨ _２ ＣＨ _２ Ｏ）ｍ（ＣＨ（ＣＨ _３ ）ＣＨ _２ Ｏ）ｎ−Ｈ
（式中、Ｒは炭素数１〜３０のアルキル基を示し、ｍ及びｎは、各々独立して、３〜６０を示し、ｍ＋ｎは、８〜９０を示す。）；
式（７）：
ＨＯ−（ＣＨ _２ ＣＨ _２ ＣＨ _２ ＣＨ _２ Ｏ）ｍ（ＣＨ _２ ＣＨ _２ Ｏ）ｎ−Ｈ
（式中、ｍ及びｎは、各々独立して、３〜６０を示し、ｍ＋ｎは、８〜９０を示す。）；
式（８）：
ＨＯ−（ＣＨ _２ ＣＨ _２ ＣＨ _２ ＣＨ _２ Ｏ）ｐ−Ｈ
（式中、ｐは、６〜１００を示す。）；
式（９）：
ＨＯ−（ＣＨ（ＣＨ _３ ）ＣＨ _２ Ｏ）ｑ−Ｈ
（式中、ｑは、７〜１２０を示す。）；
及び
式（１０）：
ＨＯ−（ＣＨ（Ｃ _２ Ｈ _５ ）ＣＨ _２ Ｏ）ｒ−Ｈ
（式中、ｒは、６〜１００を示す。）
４．
ＪＩＳ Ｋ１５５７−４に準拠して測定される、ポリエーテル誘導体（Ｂ）のＣＰＲが２．０以下である、上記１〜３のいずれかに記載の芳香族ポリカーボネート樹脂組成物。
５．
ＪＩＳ Ｋ１５５７−５に準拠して測定される、ポリエーテル誘導体（Ｂ）のｐＨが、５．０以上、７．５未満である、上記１〜４のいずれかに記載の芳香族ポリカーボネート樹脂組成物。
６．
ＪＩＳ Ｋ７１２０に準拠する熱重量測定で測定される、ポリエーテル誘導体（Ｂ）の９０％重量となる温度（又は重量減少率が１０％となる温度）が、３００℃以上である、上記１〜５のいずれかに記載の芳香族ポリカーボネート樹脂組成物。
７．
芳香族ポリカーボネート樹脂（Ａ）１００重量部に対して、芳香族化合物（Ｃ）を、０．０００５以上〜０．００３重量部未満含む、上記１〜６のいずれかに記載の芳香族ポリカーボネート樹脂組成物。
８．
芳香族ポリカーボネート樹脂（Ａ）１００重量部に対して、更に、リン系酸化防止剤（Ｄ）を、０．５重量部まで含有する、上記１〜７のいずれかに記載の芳香族ポリカーボネート樹脂組成物。
９．
前記リン系酸化防止剤（Ｄ）が、下記亜リン酸エステル構造を有する亜リン酸エステル化合物を含む、上記８に記載の芳香族ポリカーボネート樹脂組成物。
（化２）

１０．
前記リン系酸化防止剤（Ｄ）が、下記式（１１）、（１２）、（１３）及び（１４）で表される亜リン酸エステル化合物から選択される少なくとも１種以上の化合物を含む、上記９に記載の芳香族ポリカーボネート樹脂組成物。
式（１１）：
（化３）

［式中、Ｒ ^１ は、炭素数１〜２０のアルキル基又はアルキル基で置換されていてもよいアリール基を示し、ａは、０〜３の整数を示す。］
式（１２）：
（化４）

［式中、Ｒ ^２ 、Ｒ ^３ 、Ｒ ^５ 及びＲ ^６ は、各々独立して、水素原子、炭素数１〜８のアルキル基、炭素数５〜８のシクロアルキル基、炭素数６〜１２のアルキルシクロアルキル基、炭素数７〜１２のアラルキル基又はフェニル基を示す。Ｒ ^４ は、水素原子又は炭素数１〜８のアルキル基を示す。Ｘは、単結合、硫黄原子又は式：−ＣＨＲ ^７ −（ここで、Ｒ ^７ は、水素原子、炭素数１〜８のアルキル基又は炭素数５〜８のシクロアルキル基を示す）で表される基を示す。Ａは、炭素数１〜８のアルキレン基又は式：＊−ＣＯＲ ^８ −（ここで、Ｒ ^８ は、単結合又は炭素数１〜８のアルキレン基を示し、＊は、酸素側の結合手であることを示す）で表される基を示す。Ｙ及びＺは、いずれか一方がヒドロキシル基、炭素数１〜８のアルコキシ基又は炭素数７〜１２のアラルキルオキシ基を示し、もう一方が水素原子又は炭素数１〜８のアルキル基を示す。］
式（１３）：
（化５）

［式中、Ｒ ^９ 、Ｒ ^１０ は炭素数１〜２０のアルキル基、またはアルキル基で置換されてもよいアリール基を、ｂ及びｃは、それぞれ独立して、整数０〜３を示す。］
式（１４）：
（化６）

［式中、Ｒ ^１１ 〜Ｒ ^１８ は、それぞれ独立に、炭素数１〜３のアルキル基またはアルケニル基を示す。Ｒ ^１１ とＲ ^１２ 、Ｒ ^１３ とＲ ^１４ 、Ｒ ^１５ とＲ ^１６ 、Ｒ ^１７ とＲ ^１８ とは、互いに結合して環を形成していても良い。Ｒ ^１９ 〜Ｒ ^２２ は、それぞれ独立に、水素原子または炭素数１〜２０のアルキル基を示す。ｄ〜ｇは、それぞれ独立して、０〜５の整数である。Ｘ ^１ 〜Ｘ ^４ は、それぞれ独立に、単結合または炭素原子を示す。Ｘ ^１ 〜Ｘ ^４ が単結合である場合、Ｒ ^１１ 〜Ｒ ^２２ のうち、当該単結合に繋がった官能基は式（１４）から除外される。］
１１．
下記のことから選択される少なくとも１を満たす、上記１０に記載の芳香族ポリカーボネート樹脂組成物。
前記式（１１）で表される亜リン酸エステル化合物が、トリス（２，４−ジ−ｔ−ブチルフェニル）フォスファイトを含むこと；
前記式（１２）で表される亜リン酸エステル化合物が、２，４，８，１０−テトラ−ｔ−ブチル−６−［３−（３−メチル−４−ヒドロキシ−５−ｔ−ブチルフェニル）プロポキシ］ジベンゾ［ｄ，ｆ］［１，３，２］ジオキサホスフェピンを含むこと；
前記式（１３）で表される亜リン酸エステル化合物が、３，９−ビス（２，６−ジ−ｔｅｒｔ−ブチル−４−メチルフェノキシ）−２，４，８，１０−テトラオキサ−３，９−ジホスファスピロ［５，５］ウンデカンを含むこと；及び
前記式（１４）で表される亜リン酸エステル化合物が、ビス（２，４−ジクミルフェニル）ペンタエリスリトールジフォスファイトを含むこと。
１２．
前記芳香族ポリカーボネート樹脂（Ａ）１００重量部に対して、さらに、エポキシ化合物（Ｅ）を、０．００１〜０．２質量部含有する、上記１〜１１のいずれかに記載の芳香族ポリカーボネート樹脂組成物。
１３．
前記エポキシ化合物（Ｅ）が、３’，４’−エポキシシクロヘキシルメチル−３，４−エポキシシクロヘキサンカルボキシレートを含む、上記１２に記載の芳香族ポリカーボネート樹脂組成物。
１４．
熱安定剤、酸化防止剤、着色剤、離型剤、軟化剤、帯電防止剤及び衝撃性改良剤を含む群から選択される少なくとも１種を更に含有する、上記１〜１３のいずれかに記載の芳香族ポリカーボネート樹脂組成物。
１５．
上記１〜１４のいずれかに記載の芳香族ポリカーボネート樹脂組成物を含む光学用成形品。
１６．
前記光学用成形品が、導光板、面発光体材料、導光フィルム、車両用ライトガイド及び銘板から選択される成形品を含む、上記１５記載の光学用成形品。
１７．
上記１〜１４のいずれかに記載の芳香族ポリカーボネート樹脂組成物を成形することを含む、光学用成形品の製造方法。 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 has excellent 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.

Related Applications This application is based on Application No. 2018-11641 filed in Japan on January 26, 2018 and Application No. 2018-156195 filed in Japan on August 23, 2018. Claim priority under the Articles. The contents of these basic applications are incorporated herein by reference.

The present specification includes the following forms.
1. 1.
An aromatic polycarbonate resin composition containing an aromatic polycarbonate resin (A), a polyether derivative (B), and an aromatic compound (C) represented by the following formula.
0.1 parts by weight or more and 2.0 parts by weight or less of the polyether derivative (B) and 0.0001 parts by weight or more of the aromatic compound (C) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). An aromatic polycarbonate resin composition containing less than 05 parts by weight.
formula:
(Chemical 1)

2.
The aromatic polycarbonate resin composition according to 1 above, wherein the polyether derivative (B) is represented by the following formula (1) and contains a polyether derivative having a weight average molecular weight of 500 to 8000.
Equation (1):
RO- (X-O) m (YO) n-R'
(In the formula, R and R'independently represent a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, X represents a linear alkylene group or a branched alkylene group having 2 to 4 carbon atoms, and Y represents a branched alkylene group. , A linear alkylene group or a branched alkylene group having 2 to 5 carbon atoms, and X and Y may be the same or different, and m and n independently represent 3 to 60 and m + n. Indicates 6 to 120.)
3. 3.
The polyether derivative represented by the formula (1) is a polyether derivative represented by the following formula (2), a polyether derivative represented by the formula (3), a polyether derivative represented by the formula (4), and the like. A polyether derivative represented by the formula (5), a polyether derivative represented by the formula (6), a polyether derivative represented by the formula (7), a polyether derivative represented by the formula (8), and a formula ( The aromatic polycarbonate resin composition according to 2 above, which comprises at least one selected from the polyether derivative represented by 9) and the polyether derivative represented by the formula (10).
Equation (2):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (3):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH ₂ CH ₂ CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (4):
HO- (CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (5):
RO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, R represents an alkyl group having 1 to 30 carbon atoms, m and n independently represent 3 to 60, and m + n represents 8 to 90.);
Equation (6):
RO- (CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, R represents an alkyl group having 1 to 30 carbon atoms, m and n independently represent 3 to 60, and m + n represents 8 to 90.);
Equation (7):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH ₂ CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (8):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) p-H
(In the formula, p indicates 6 to 100.);
Equation (9):
HO- (CH (CH ₃ ) CH ₂ O) q-H
(In the formula, q indicates 7 to 120.);
as well as
Equation (10):
HO- (CH (C ₂ H ₅ ) CH ₂ O) r-H
(In the formula, r indicates 6 to 100.)
4.
The aromatic polycarbonate resin composition according to any one of 1 to 3 above, wherein the CPR of the polyether derivative (B) is 2.0 or less, which is measured according to JIS K1557-4.
5.
The aromatic polycarbonate resin composition according to any one of 1 to 4 above, wherein the pH of the polyether derivative (B) measured according to JIS K1557-5 is 5.0 or more and less than 7.5. ..
6.
The temperature at which the weight of the polyether derivative (B) is 90% (or the temperature at which the weight loss rate is 10%) measured by thermogravimetric analysis according to JIS K7120 is 300 ° C. or higher, the above 1 to 5 The aromatic polycarbonate resin composition according to any one of.
7.
The aromatic polycarbonate resin composition according to any one of 1 to 6 above, which contains 0.0005 or more and less than 0.003 parts by weight of the aromatic compound (C) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). Stuff.
8.
The aromatic polycarbonate resin composition according to any one of 1 to 7 above, which further contains up to 0.5 parts by weight of the phosphorus-based antioxidant (D) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). Stuff.
9.
The aromatic polycarbonate resin composition according to 8 above, wherein the phosphorus-based antioxidant (D) contains a phosphite ester compound having the following phosphite ester structure.
(Chemical 2)

10.
The phosphorus-based antioxidant (D) contains at least one compound selected from the phosphite ester compounds represented by the following formulas (11), (12), (13) and (14). The aromatic polycarbonate resin composition according to 9 above.
Equation (11):
(Chemical 3)

[In the formula, R ¹ represents an alkyl group having 1 to 20 carbon atoms or an aryl group which may be substituted with an alkyl group, and a represents an integer of 0 to 3. ]
Equation (12):
(Chemical 4)

[In the formula, R ² , R ³ , R ⁵ and R ⁶ each 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 12 carbon atoms. It shows an alkylcycloalkyl group, an aralkyl group having 7 to 12 carbon atoms, or a phenyl group. R ⁴ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. X represents a single bond, a sulfur atom or the formula: -CHR ⁷ - (wherein, ^{R 7} is a hydrogen atom, an alkyl group or a cycloalkyl group having a carbon number of 5-8 of 1-8 carbon atoms) represented by Indicates a group. A is an alkylene group, or a group represented by formula having 1 to 8 carbon atoms: * - COR ⁸ - (wherein, ^{R 8} represents a single bond or an alkylene group having 1 to 8 carbon atoms, * is the bond of the oxygen side Indicates a group represented by). 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 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. ]
Equation (13):
(Chemical 5)

[In the formula, R ⁹ and R ¹⁰ 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 each independently represent an integer 0 to 3. ]
Equation (14):
(Chemical 6)

[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 , and R ¹⁷ and R ¹⁸ may be coupled 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 independently integers of 0 to 5. X ^{1 to} X ⁴ each independently represent a single bond or a carbon atom. When X ^{1 to} X ⁴ are single bonds, the functional group connected to the single bond among ^{R 11 to} R ^{22 is excluded from the formula (14).} ]
11.
The aromatic polycarbonate resin composition according to 10 above, which satisfies at least 1 selected from the following.
The phosphite ester compound represented by the formula (11) contains tris (2,4-di-t-butylphenyl) phosphite;
The phosphite ester compound represented by the formula (12) is 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl). ) Propoxy] dibenzo [d, f] [1,3,2] containing dioxaphosfepine;
The phosphite ester compound represented by the formula (13) is 3,9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3, Includes 9-diphosphaspiro [5,5] undecane; and
The phosphite ester compound represented by the formula (14) contains bis (2,4-dicumylphenyl) pentaerythritol diphosphite.
12.
The aromatic polycarbonate resin according to any one of 1 to 11 above, which further contains 0.001 to 0.2 parts by mass of the epoxy compound (E) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). Composition.
13.
The aromatic polycarbonate resin composition according to 12 above, wherein the epoxy compound (E) contains 3', 4'-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate.
14.
The above 1 to 13 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.
15.
An optical molded product containing the aromatic polycarbonate resin composition according to any one of 1 to 14 above.
16.
The optical molded product according to the above 15, wherein the optical molded product includes a molded product selected from a light guide plate, a surface light emitting body material, a light guide film, a vehicle light guide, and a name plate.
17.
A method for producing an optically molded product, which comprises molding the aromatic polycarbonate resin composition according to any one of 1 to 14 above.

Claims (17)

An aromatic polycarbonate resin composition containing an aromatic polycarbonate resin (A), a polyether derivative (B), and an aromatic compound (C) represented by the following formula.
0.1 parts by weight or more and 2.0 parts by weight or less of the polyether derivative (B) and 0.0001 parts by weight or more of the aromatic compound (C) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). An aromatic polycarbonate resin composition containing less than 05 parts by weight.
formula:

The aromatic polycarbonate resin composition according to claim 1, wherein the polyether derivative (B) is represented by the following formula (1) and contains a polyether derivative having a weight average molecular weight of 500 to 8000.
Equation (1):
RO- (X-O) m (YO) n-R'
(In the formula, R and R'independently represent a hydrogen atom or an alkyl group having 1 to 30 carbon atoms, X represents a linear alkylene group or a branched alkylene group having 2 to 4 carbon atoms, and Y represents a branched alkylene group. , A linear alkylene group or a branched alkylene group having 2 to 5 carbon atoms, and X and Y may be the same or different, and m and n independently represent 3 to 60 and m + n. Indicates 6 to 120.) The polyether derivative represented by the formula (1) is a polyether derivative represented by the following formula (2), a polyether derivative represented by the formula (3), a polyether derivative represented by the formula (4), and the like. A polyether derivative represented by the formula (5), a polyether derivative represented by the formula (6), a polyether derivative represented by the formula (7), a polyether derivative represented by the formula (8), and a formula ( The aromatic polycarbonate resin composition according to claim 2, which comprises at least one selected from the polyether derivative represented by 9) and the polyether derivative represented by the formula (10).
Equation (2):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (3):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH ₂ CH ₂ CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (4):
HO- (CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (5):
RO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, R represents an alkyl group having 1 to 30 carbon atoms, m and n independently represent 3 to 60, and m + n represents 8 to 90.);
Equation (6):
RO- (CH ₂ CH ₂ O) m (CH (CH ₃ ) CH ₂ O) n-H
(In the formula, R represents an alkyl group having 1 to 30 carbon atoms, m and n independently represent 3 to 60, and m + n represents 8 to 90.);
Equation (7):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) m (CH ₂ CH ₂ O) n-H
(In the formula, m and n independently indicate 3 to 60, and m + n indicates 8 to 90.);
Equation (8):
HO- (CH ₂ CH ₂ CH ₂ CH ₂ O) p-H
(In the formula, p indicates 6 to 100.);
Equation (9):
HO- (CH (CH ₃ ) CH ₂ O) q-H
(In the formula, q indicates 7 to 120.);
And equation (10):
HO- (CH (C ₂ H ₅ ) CH ₂ O) r-H
(In the formula, r indicates 6 to 100.) The aromatic polycarbonate resin composition according to any one of claims 1 to 3, wherein the CPR of the polyether derivative (B) is 2.0 or less, which is measured according to JIS K1557-4. The aromatic polycarbonate resin composition according to any one of claims 1 to 4, wherein the pH of the polyether derivative (B) measured according to JIS K1557-5 is 5.0 or more and less than 7.5. Stuff. Claims 1 to that the temperature at which the weight of the polyether derivative (B) is 90% (or the temperature at which the weight loss rate is 10%) measured by thermogravimetric analysis according to JIS K7120 is 300 ° C. or higher. The aromatic polycarbonate resin composition according to any one of 5. The aromatic polycarbonate resin according to any one of claims 1 to 6, which contains 0.0005 or more and less than 0.003 parts by weight of the aromatic compound (C) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). Composition. The aromatic polycarbonate resin according to any one of claims 1 to 7, further containing up to 0.5 parts by weight of the phosphorus-based antioxidant (D) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). Composition. The aromatic polycarbonate resin composition according to claim 8, wherein the phosphorus-based antioxidant (D) contains a phosphite ester compound having the following phosphite ester structure.

The phosphorus-based antioxidant (D) contains at least one compound selected from the phosphite ester compounds represented by the following formulas (11), (12), (13) and (14). The aromatic polycarbonate resin composition according to claim 9.
Equation (11):

[In the formula, R ¹ represents an alkyl group having 1 to 20 carbon atoms or an aryl group which may be substituted with an alkyl group, and a represents an integer of 0 to 3. ]
Equation (12):

[In the formula, R ² , R ³ , R ⁵ and R ⁶ each 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 12 carbon atoms. It shows an alkylcycloalkyl group, an aralkyl group having 7 to 12 carbon atoms, or a phenyl group. R ⁴ represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. X represents a single bond, a sulfur atom or the formula: -CHR ⁷ - (wherein, ^{R 7} is a hydrogen atom, an alkyl group or a cycloalkyl group having a carbon number of 5-8 of 1-8 carbon atoms) represented by Indicates a group. A is an alkylene group, or a group represented by formula having 1 to 8 carbon atoms: * - COR ⁸ - (wherein, ^{R 8} represents a single bond or an alkylene group having 1 to 8 carbon atoms, * is the bond of the oxygen side Indicates a group represented by). 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 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms. ]
Equation (13):

[In the formula, R ⁹ and R ¹⁰ 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 each independently represent an integer 0 to 3. ]
Equation (14):

[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 , and R ¹⁷ and R ¹⁸ may be coupled 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 independently integers of 0 to 5. X ^{1 to} X ⁴ each independently represent a single bond or a carbon atom. When X ^{1 to} X ⁴ are single bonds, the functional group connected to the single bond among ^{R 11 to} R ^{22 is excluded from the formula (9).} ] The aromatic polycarbonate resin composition according to claim 10, which satisfies at least one selected from the following.
The phosphite ester compound represented by the formula (11) contains tris (2,4-di-t-butylphenyl) phosphite;
The phosphite ester compound represented by the formula (12) is 2,4,8,10-tetra-t-butyl-6- [3- (3-methyl-4-hydroxy-5-t-butylphenyl). ) Propoxy] dibenzo [d, f] [1,3,2] containing dioxaphosfepine;
The phosphite ester compound represented by the formula (13) is 3,9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3, 9-Diphosphaspiro [5,5] undecane; and the phosphite ester compound represented by the above formula (14) contains bis (2,4-dicumylphenyl) pentaerythritol diphosphite. The aromatic polycarbonate according to any one of claims 1 to 11, further containing 0.001 to 0.2 parts by mass of the epoxy compound (E) with respect to 100 parts by weight of the aromatic polycarbonate resin (A). Resin composition. The aromatic polycarbonate resin composition according to claim 12, wherein the epoxy compound (E) contains 3', 4'-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate. One of claims 1 to 13, 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. The aromatic polycarbonate resin composition according to the above. An optical molded article containing the aromatic polycarbonate resin composition according to any one of claims 1 to 14. The optical molded product according to claim 15, wherein the optical molded product includes a molded product selected from a light guide plate, a surface light emitting body material, a light guide film, a vehicle light guide, and a name plate. A method for producing an optically molded product, which comprises molding the aromatic polycarbonate resin composition according to any one of claims 1 to 14.