WO2008038512A1 - Article moulé en résine de poly(sulfure de phénylène) - Google Patents

Article moulé en résine de poly(sulfure de phénylène) Download PDF

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Publication number
WO2008038512A1
WO2008038512A1 PCT/JP2007/067617 JP2007067617W WO2008038512A1 WO 2008038512 A1 WO2008038512 A1 WO 2008038512A1 JP 2007067617 W JP2007067617 W JP 2007067617W WO 2008038512 A1 WO2008038512 A1 WO 2008038512A1
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WO
WIPO (PCT)
Prior art keywords
polyphenylene sulfide
molded product
parts
mass
sulfide resin
Prior art date
Application number
PCT/JP2007/067617
Other languages
English (en)
Japanese (ja)
Inventor
Satoru Kinouchi
Toru Iga
Hirofumi Goto
Original Assignee
Idemitsu Kosan Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Idemitsu Kosan Co., Ltd. filed Critical Idemitsu Kosan Co., Ltd.
Priority to JP2008536324A priority Critical patent/JP5339912B2/ja
Priority to CN2007800354856A priority patent/CN101553537B/zh
Publication of WO2008038512A1 publication Critical patent/WO2008038512A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
    • C08L81/02—Polythioethers; Polythioether-ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics

Definitions

  • the present invention relates to a molded product of polyphenylene sulfide resin.
  • optical parts such as optical pickups such as CD and DVD, optical housings (bases) such as high-speed color copiers, and high-speed color laser beam printers (LBP) are die-cast metal such as aluminum and zinc.
  • bases such as high-speed color copiers
  • LBP color laser beam printers
  • resinization of these products has begun to be examined due to the increasing needs for product cost reduction and light weight, and it is gradually being replaced.
  • some of the housings are made of resin, and along with the popularization of notebook personal computers! /, Slim type optical pickups are being made of resin.
  • resin materials used for optical components are subject to dimensional accuracy and dimensional stability during (injection) molding, moldability (fluidity), mechanical strength, rigidity, and environmental resistance (depending on the function of the optical component). Heat, humidity, chemicals, etc.) and flame retardant properties are required.
  • Patent Document 1 JP 2001-294751 A
  • Patent Document 2 Japanese Patent Laid-Open No. 62-268612
  • Patent Document 3 Japanese Patent Laid-Open No. 2003-268252
  • An object of the present invention is to provide a polyethylene sulfide resin molded article that exhibits a high elastic modulus and dimensional stability in a thin portion.
  • the present inventor can obtain a resin molded article that provides an optical component with extremely small optical axis deviation and excellent mechanical strength by further adding a specific amount of filler to the above polyphenylene sulfide.
  • the present invention was completed.
  • the following polyphenylene sulfide resin molded article is provided.
  • a molded article made of a polyphenylene sulfide resin composition obtained by adding 10 to 200 parts by mass of a glass fiber having a flat cross section with respect to 100 parts by mass of polyphenylene sulfide.
  • Polyphenylene sulfide resin molded product having a thickness of 0.3 to 4;
  • polyphenylene sulfide resin molded article according to 1 or 2 wherein 0 to 200 parts by mass of an inorganic filler is added to 100 parts by mass of the polyphenylene sulfide.
  • Optical pick comprising the polyphenylene sulfide resin molded product according to any one of! To 3 [0011] According to the present invention, it is possible to provide a polyethylene sulfide resin molded product that exhibits high elastic modulus and dimensional stability in a thin portion.
  • FIG. 1 is a graph showing the flatness of glass fibers used in the present invention.
  • FIG. 2 is a graph showing the relationship between the thickness (mm) of a molded product and the flexural modulus (GPa) of a molded product obtained from the resin composition of Example 2 and a molded product obtained from the resin composition of Comparative Example 2.
  • mm thickness
  • GPa flexural modulus
  • FIG. 3 is a graph showing the relationship between the thickness (mm) of the molded product and the flexural modulus (GPa) of the molded product obtained from the resin composition of Example 4 and the molded product obtained from the resin composition of Comparative Example 4. The best mode for carrying out the invention
  • the polyphenylene sulfide resin molded article of the present invention is a polyphenylene sulfide resin composition obtained by adding 10 to 200 parts by mass of a glass fiber having a flat cross section to 100 parts by mass of polyphenylene sulfide. Consists of.
  • the polyphenylene sulfide used in the present invention has a repeating unit represented by the following formula:
  • the repeating unit is usually 50% by mole or more, preferably 70 mol 0/0 or more , more preferably a polymer containing 90 mole 0/0 above.
  • phenyl group examples include p-phenylene, m-phenylene, o-phenylene, anolequinol-substituted phenylene (preferably an alkyl group having 1 to 6 carbon atoms), phenyl.
  • Polyphenylene sulfide which also has these phenylene bases, is a homopolymer consisting of the same repeating units. It is possible to list copolymers consisting of one, two or more different phenylene groups and mixtures thereof.
  • polyphenylene sulfide having p-phenylene sulfide as the main constituent element of the repeating unit is particularly preferable since it is excellent in workability and is easily available industrially.
  • polyphenylene ketone sulfide, polyphenylene ketone ketone sulfide, and the like can be used.
  • copolymers include random or block copolymers with repeating units of p-phenylene sulfide and m-phenylene sulfide, and random with repeating units of phenyl-sulfide and repeating units of phenyl-ketone sulfide.
  • a copolymer etc. can be mentioned.
  • These polyphenylene sulfides are preferably crystalline polymers.
  • Polyphenylene sulfide can be obtained by a known method of polymerizing an alkali metal sulfide and a dihalogen-substituted aromatic compound in a polar solvent.
  • alkali metal sulfide examples include lithium sulfide, sodium sulfide, potassium sulfide, rubidium sulfide, and cesium sulfide.
  • Sodium sulfide produced by reacting sodium hydrosulfide with sodium hydroxide in the reaction system can also be used.
  • dino- and rogen-substituted aromatic compounds include p-dichlorobenzene, m-dichlorobenzene, 2,5-dichlorotoluene, p-dibromobenzene, 2,6-dichloronaphthalene, 1-methoxy-2,5-dichlorobenzene. 4,4'-dichlorobiphenyl, 3,5 dichlorobenzoic acid, P, P, monodichlorodiphenyl ether, 4,4,1 dichlorodiphenylsulfone, 4,4, -dichlorodiphenyl sulfoxide and 4, 4'-dichlorodiphenyl ketone and the like. These can be used alone or in combination of two or more.
  • a polyhalogen-substituted aromatic compound having 3 to 6 halogen substituents per molecule is used in combination The power to do S.
  • the polyhalogen-substituted aromatic compound include 1, 2, 3-trifluorobenzene, 1, 2, 3 tribromobenzene, 1, 2, 4 trichlorobenzene, 1, 2, 4-tribromobenzene, 1 , 3,5-trichlorobenzene, 1,3,5-tribromobenzene, 1,3-dichloro-5-bromobenzene, and other trihalogen-substituted aromatic compounds, and alkyl substitution products thereof.
  • Examples of the polar solvent include aromatic organic amide solvents represented by N-alkylpyrrolidone such as N-methyl-2-pyrrolidone, 1,3-dialkyl-2-imidazolidinone, tetraalkylurea, hexaalkylphosphoric triamide, and the like.
  • N-alkylpyrrolidone such as N-methyl-2-pyrrolidone, 1,3-dialkyl-2-imidazolidinone, tetraalkylurea, hexaalkylphosphoric triamide, and the like.
  • a high molecular weight polymer having a high stability of the reaction system is easily obtained, which is preferable.
  • the use of polyphenylene sulfide that has been subjected to various washing operations and heat treatment after the polymerization is used.
  • the glass fiber used in the present invention has a flat cross section, and preferably has a flatness ratio of 0.1 to 0.5, more preferably 0.2 to 0.3.
  • the flatness is 0.2 or more, the bending strength can be maintained at a particularly high level, and when the aspect ratio is 0.3 or less, the bending elastic modulus can be maintained at a particularly high level in the thin wall portion.
  • the flatness is expressed as D1 / D2, where D1 is the minor axis of the cross section and D2 is the major axis of the cross section.
  • D1 is the minor axis of the cross section
  • D2 is the major axis of the cross section.
  • the aspect ratio is less than 0.1
  • the bending strength of the molded product may be reduced, which is not preferable.
  • the flatness ratio exceeds 0.5, the thin part of the molded product does not show a high elastic modulus, and in the optical component, the optical axis characteristics and mechanical strength are the same as when ordinary glass fiber is used. There is a possibility that the effect of will not appear remarkably.
  • the short diameter D1 of the cross section of the glass fiber is preferably 0.5 to 25 ⁇ m, and the long diameter D2 of the cross section is preferably 1.0 ⁇ 250 to 111. If the cross section of the glass fiber is too thin, it may be difficult to spin the glass fiber. If it is too thick, the reinforcing effect of the glass fiber as a reinforcing material may decrease due to a decrease in the contact area with the resin. .
  • the glass fiber is added in an amount of 10 to 200 parts by mass with respect to 100 parts by mass of polyphenylene sulfide. To do. If the amount added is less than 10 parts by mass, the rigidity of the molded product may be lowered. On the other hand, when the addition amount exceeds 200 parts by mass, the flowability of the resin composition and the impact strength may be lowered, and the dimensional stability of the molded product may be lowered.
  • the glass fiber is preferably added in an amount of 20 to 160 parts by mass with respect to 100 parts by mass of polyphenylene sulfide. When the addition amount is in the above range, the fluidity is high in that it is difficult to cause molding defects such as shrinkage due to high strength of the molded product.
  • the polyphenylene sulfide resin composition used in the present invention further contains 0 to 200 parts by mass of an inorganic filler (excluding glass fibers) with respect to 100 parts by mass of polyphenylene sulfide. If the added amount of inorganic filler exceeds 200 parts by mass, the fluidity of the resin composition may decrease, or a large residual stress may occur in the thin part of the molded product, which may cause thermal deformation. It is not preferable.
  • the addition amount of the inorganic filler is more preferably 50 to 200 parts by mass, and particularly preferably 50 to 170 parts by mass with respect to 100 parts by mass of polyphenylene sulfide.
  • the addition amount is 50 parts by mass or more, the effect of adding the inorganic filler is sufficiently exhibited. Further, when the addition amount is 170 parts by mass or less, the fluidity and strength are hardly lowered.
  • the inorganic filler is not particularly limited as long as it is generally used as an inorganic filler, and the shape thereof is not particularly limited, and may be indefinite, spherical, or plate-like.
  • the inorganic filler include carbon fiber, titanic acid rewis power, zinc oxide whisker, aluminum borate whisker, aramid fiber, alumina fiber, silicon carbide fiber, ceramic fiber, asbestos fiber, stone coco fiber, Fibrous fillers such as metal fibers, plate-like fillers such as glass flakes and my strength, silicates such as wollastonite, zeolite, sericite, talc, kaolin, clay, pyrophyllite, bentonite, asbestos and alumina silicate, oxidation Metal compounds such as silicon, magnesium oxide, alumina, zirconium oxide, titanium oxide and iron oxide, carbonates such as calcium carbonate and magnesium carbonate, sulfates such as calcium sulfate and sodium sulfate, calcium hydroxide, magnesium hydroxide and water Hydroxide such as aluminum oxide, glass beads, Non-fibrous fillers such as ceramic beads, boron nitride, silicon carbide, graphite, carbon black and silica,
  • these fillers are pretreated with coupling agents such as isocyanate compounds, organic silane compounds, organic titanate compounds, organic borane compounds and epoxy compounds. In the sense to get! /, Preferred! / ,.
  • the polyphenylene sulfide resin composition includes various additives such as a lubricant, an antistatic agent, an antioxidant, an ultraviolet absorber, a release agent, and a colorant as long as the effects of the present invention are not impaired. You can add it.
  • the polyphenylene sulfide resin composition is substantially composed of polyphenylene sulfide and glass fiber having a flat cross section, or polyphenylene sulfide, glass fiber having a flat cross section and an inorganic filler. It may be composed of only these components. “Substantially” means that the composition is mainly composed of polyphenylene sulfide and glass fiber having a flat cross section, or polyphenylene sulfide, glass fiber having a flat cross section and an inorganic filler. This means that the above additives can be included in addition to these components.
  • the thickness of the thin-walled part (the thinnest part of the molded product) of the polyphenylene sulfide resin molded product of the present invention is 0.3 to 4 mm, preferably 0.4 to L 4 mm, Particularly preferred is 0 • 6 to 1.2 mm.
  • the thickness of the thin portion is less than 0.3 mm, filling during molding may be insufficient. On the other hand, when the thickness of the thin portion exceeds 1.4 mm, the properties of the molded product do not change, and the effects of the present invention cannot be obtained.
  • the poly (phenylene sulfide) resin molded product of the present invention exhibits high optical properties at the thin-walled portion, high elastic modulus and dimensional stability, excellent moldability, high mechanical strength, and extremely small optical axis displacement. It is useful as a component, particularly as an optical pickup housing.
  • An optical pickup housing is an optical component that serves as a base for an optical disk reader, and requires precise formability and high heat-resistant dimensional stability.
  • the resin molded product of the present invention has a small decrease in the elastic modulus of the thin portion even when the proportion of the thin portion having the above thickness is 5% to 50% (ratio to the projected area) of the entire molded product. It can be suitably used as an optical component.
  • the optical component of the present invention has excellent performance as a product such as an LBP optical box and a camera lens barrel in addition to the optical pickup housing.
  • the molding method for obtaining the molded product of polyphenylene sulfide resin of the present invention is not particularly limited, and any known method can be used.
  • Polyphenylene sulfide resins used in Examples and Comparative Examples were produced by the following method.
  • GF-1 Flat GF CSG 3PA-830S, Nittobo Co., Ltd., flat rate: 0.25 (minor axis 7 ⁇ m / major axis 28 ⁇ m)
  • GF—2 Chopped GF CS 03 JAFT591, manufactured by Owenscoung (circular cross section: diameter lO ⁇ u m)
  • Plate-type filler Graphite powder CB-150, manufactured by Nippon Graphite Industry Co., Ltd.
  • optical pickup housing The dimensions of the obtained optical pickup housing are shown below.
  • Thickness 0.45mm portion accounts for 30% of the projected area (projected area in the light emitting direction of the optical pickup device).
  • the thickness of the other parts is mainly 1.5-2mm, and a part (about several percent) is 4mm thick.
  • the optical pickup housing obtained in (3) was attached to a destructive testing machine (Digital Force Gauge DPS-20, manufactured by Imada Co., Ltd.), and a load was applied to the center of the pick to measure the load at the time of failure.
  • the results obtained are shown in Table 1.
  • optical axis misalignment at 80 ° C The optical axis deviation of the optical pickup housing at 80 ° C was evaluated by using the optical pickup housing obtained in (3) above, a cylindrical oven with a diameter of 20 cm, a mechanism that irradiates laser light vertically to the center of the oven, and The measurement was performed as follows using a measuring device equipped with a non-contact angle measuring mechanism for measuring the reflection angle of the reflected light of the laser.
  • a half mirror was set at a predetermined position in the optical pickup housing obtained in (3) above.
  • the optical pick housing was fixed in the oven so that the half mirror surface was horizontal, and laser light was irradiated at room temperature (23 ° C.), and the reflection angle was measured.
  • the oven was kept at 80 ° C. for 60 minutes, and then the laser beam was irradiated again to measure the reflection angle.
  • the difference between the reflection angle at 80 ° C and the reflection angle at room temperature (23 ° C) was defined as the optical axis deviation (angle, minutes).
  • the resolution of the non-contact angle measurement mechanism is 0.02 minutes. Table 1 shows the results obtained.
  • FIGS. 2 and 3 are graphs showing the relationship between the thickness (mm) of the molded product and the flexural modulus (GPa).
  • Koku is a molded product obtained from the resin composition of Example 2
  • ⁇ is a molded product obtained from the resin composition of Comparative Example 2
  • ⁇ is a molded product obtained from the resin composition of Example 4, and is a comparative example. 4 shows a molded product obtained from the resin composition obtained from 4.
  • the present invention can provide a resin molded product for an optical component suitable as a molding material for an optical system housing such as an optical pickup device.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
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Abstract

La présente invention concerne un article moulé composé d'une composition de résine de poly(sulfure de phénylène) obtenue en ajoutant de 10 à 200 parties en masse d'une fibre de verre ayant une coupe transversale plate pour 100 parties en masse d'un poly(sulfure de phénylène). Cet article moulé en résine de poly(sulfure de phénylène) est caractérisé par le fait d'avoir une partie mince d'une épaisseur de 0,3 à 1,4 mm.
PCT/JP2007/067617 2006-09-25 2007-09-11 Article moulé en résine de poly(sulfure de phénylène) WO2008038512A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2008536324A JP5339912B2 (ja) 2006-09-25 2007-09-11 ポリフェニレンサルファイド樹脂成形品
CN2007800354856A CN101553537B (zh) 2006-09-25 2007-09-11 聚苯硫醚树脂成形品

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JP2006-258531 2006-09-25
JP2006258531 2006-09-25

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WO2008038512A1 true WO2008038512A1 (fr) 2008-04-03

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JP (1) JP5339912B2 (fr)
KR (1) KR20090064395A (fr)
CN (1) CN101553537B (fr)
TW (1) TW200836912A (fr)
WO (1) WO2008038512A1 (fr)

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WO2008132972A1 (fr) * 2007-04-20 2008-11-06 Idemitsu Kosan Co., Ltd. Composition de résine permettant un scellement d'étiquette électronique, étiquette électronique scellée par résine et son procédé de fabrication
JP2010043229A (ja) * 2008-08-18 2010-02-25 Idemitsu Kosan Co Ltd 伝熱性樹脂組成物およびその樹脂成形体
JP2016535147A (ja) * 2013-08-22 2016-11-10 東レ株式会社 ポリフェニレンサルファイド樹脂組成物、及びその成形品とその成形品の製造方法
CN111117244A (zh) * 2019-12-16 2020-05-08 中广核俊尔(浙江)新材料有限公司 一种电子标签专用高流动增强聚苯硫醚复合材料及其制备方法和应用
WO2020196273A1 (fr) 2019-03-27 2020-10-01 東レ株式会社 Composition de résine de poly(sulfure de phénylène) et article moulé
US11118053B2 (en) 2018-03-09 2021-09-14 Ticona Llc Polyaryletherketone/polyarylene sulfide composition
US11383491B2 (en) 2016-03-24 2022-07-12 Ticona Llc Composite structure

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CN103374217A (zh) * 2012-04-24 2013-10-30 苏州汉扬精密电子有限公司 玻璃纤维增强聚苯醚树脂
CN103509343A (zh) * 2012-06-28 2014-01-15 苏州汉扬精密电子有限公司 玻璃纤维增强聚苯硫醚/聚苯醚复合材料及其制备方法
CN103509342A (zh) * 2012-06-28 2014-01-15 苏州汉扬精密电子有限公司 玻璃纤维增强聚苯硫醚树脂及其制备方法
CN103627173A (zh) * 2012-08-24 2014-03-12 苏州汉扬精密电子有限公司 玻璃纤维增强聚苯硫醚/芳香族聚酰胺复合材料及其制备方法
KR101674242B1 (ko) * 2013-03-15 2016-11-08 롯데첨단소재(주) 전자파 차폐특성이 우수한 열가소성 수지조성물
CN104650584A (zh) * 2013-08-22 2015-05-27 东丽先端材料研究开发（中国）有限公司 聚苯硫醚树脂组合物及其成型品
CN103965632A (zh) * 2014-04-23 2014-08-06 安徽依采妮纤维材料科技有限公司 一种汽车塑料件用膨胀石墨改性聚苯硫醚材料
JP7022586B2 (ja) 2015-12-11 2022-02-18 ティコナ・エルエルシー 架橋可能なポリアリーレンスルフィド組成物
TW201731960A (zh) 2015-12-11 2017-09-16 堤康那責任有限公司 聚芳硫化物組合物
KR102571437B1 (ko) 2021-07-19 2023-08-25 도레이첨단소재 주식회사 필러 고함량 폴리페닐렌설파이드 복합 수지 및 이를 이용한 성형품

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JP2004176062A (ja) * 2002-11-15 2004-06-24 Toray Ind Inc 光ピックアップ部品用錠剤、それから得られる光ピックアップ部品およびその製造方法
JP2004196837A (ja) * 2002-12-16 2004-07-15 Idemitsu Petrochem Co Ltd ポリアリーレンスルフィド樹脂組成物及びその成形品
JP2004339290A (ja) * 2003-05-13 2004-12-02 Polyplastics Co 樹脂組成物、成形品及び記録用光ピックアップベース
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WO2007080754A1 (fr) * 2006-01-13 2007-07-19 Mitsubishi Engineering-Plastics Corporation Composition de resine polyamide destinee a un appareil electronique portable et article moule destine a un appareil electronique portable

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008132972A1 (fr) * 2007-04-20 2008-11-06 Idemitsu Kosan Co., Ltd. Composition de résine permettant un scellement d'étiquette électronique, étiquette électronique scellée par résine et son procédé de fabrication
US8324308B2 (en) 2007-04-20 2012-12-04 Idemitsu Kosan Co., Ltd. Resin composition for encapsulating an electronic tag, a resin-encapsulated electronic tag and a method for producing the same
JP5378992B2 (ja) * 2007-04-20 2013-12-25 出光興産株式会社 電子タグ封止用樹脂組成物、樹脂封止電子タグ及びその製造方法
JP2010043229A (ja) * 2008-08-18 2010-02-25 Idemitsu Kosan Co Ltd 伝熱性樹脂組成物およびその樹脂成形体
JP2016535147A (ja) * 2013-08-22 2016-11-10 東レ株式会社 ポリフェニレンサルファイド樹脂組成物、及びその成形品とその成形品の製造方法
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KR20210148112A (ko) 2019-03-27 2021-12-07 도레이 카부시키가이샤 폴리페닐렌술피드 수지 조성물 및 성형품
WO2020196273A1 (fr) 2019-03-27 2020-10-01 東レ株式会社 Composition de résine de poly(sulfure de phénylène) et article moulé
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CN111117244A (zh) * 2019-12-16 2020-05-08 中广核俊尔(浙江)新材料有限公司 一种电子标签专用高流动增强聚苯硫醚复合材料及其制备方法和应用

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TW200836912A (en) 2008-09-16
CN101553537B (zh) 2011-05-11
JP5339912B2 (ja) 2013-11-13

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