JP5427372B2 - Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same. - Google Patents

Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same. Download PDF

Info

Publication number
JP5427372B2
JP5427372B2 JP2008164513A JP2008164513A JP5427372B2 JP 5427372 B2 JP5427372 B2 JP 5427372B2 JP 2008164513 A JP2008164513 A JP 2008164513A JP 2008164513 A JP2008164513 A JP 2008164513A JP 5427372 B2 JP5427372 B2 JP 5427372B2
Authority
JP
Japan
Prior art keywords
metallic
polycarbonate resin
appearance
resin composition
weight
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
JP2008164513A
Other languages
Japanese (ja)
Other versions
JP2010006861A (en
Inventor
忠司 四之宮
秀樹 石川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumika Polycarbonate Ltd
Original Assignee
Sumika Polycarbonate 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 Sumika Polycarbonate Ltd filed Critical Sumika Polycarbonate Ltd
Priority to JP2008164513A priority Critical patent/JP5427372B2/en
Publication of JP2010006861A publication Critical patent/JP2010006861A/en
Application granted granted Critical
Publication of JP5427372B2 publication Critical patent/JP5427372B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)

Description

本発明は、外観に優れたメタリック調ポリカーボネート樹脂組成物およびそれから成形されてなる外観に優れたメタリック調成形品に関する。更に詳しくは、ポリカーボネート樹脂の特徴である耐衝撃性、耐熱性、熱安定性等を保持したまま、優れたメタリック外観を有し、更にウェルド部のメタリック外観ムラを改善したポリカーボネート樹脂組成物およびその成形品を提供するものである。   The present invention relates to a metallic polycarbonate resin composition excellent in appearance and a metallic-tone molded product excellent in appearance formed from the polycarbonate resin composition. More specifically, a polycarbonate resin composition having an excellent metallic appearance while maintaining the impact resistance, heat resistance, thermal stability, etc., which are characteristics of the polycarbonate resin, and further improving the metallic appearance unevenness of the weld portion, and its A molded article is provided.

ポリカーボネート樹脂は、耐衝撃性、耐熱性、熱安定性等に優れた熱可塑性樹脂であり、電気、電子、ITE、機械、自動車などの分野で広く用いられている。一方、当該樹脂が有するこれらの優れた性能を活かして、前述の各分野では、意匠面やデザイン上からメタリック外観を備えた材料が求められている場合もある。   Polycarbonate resin is a thermoplastic resin excellent in impact resistance, heat resistance, thermal stability, and the like, and is widely used in fields such as electricity, electronics, ITE, machinery, and automobiles. On the other hand, taking advantage of these excellent performances of the resin, in each of the above-mentioned fields, a material having a metallic appearance may be required in terms of design and design.

ポリカーボネート樹脂組成物にメタリック外観を付与させる手法として、従来から金属微粉(特許文献1)や金属被膜されたガラスフレーク(特許文献2)またはマイカ(特許文献3)あるいはアルミニウム粉とパールマイカとを併用(特許文献4)して添加することが提案されてきた。   Conventionally, metallic fine powder (Patent Document 1), metal-coated glass flake (Patent Document 2) or mica (Patent Document 3), or aluminum powder and pearl mica are used as a method for imparting a metallic appearance to a polycarbonate resin composition. (Patent Document 4) has been proposed to be added.

しかしながら、これらの手法を用いることにより、メタリック外観は得られるものの、意匠性は未だ満足のいくものではなかった。具体的には、従来手法では、メタリック外観を得るために比較的多量のメタリック顔料が添加されており、そのため得られたメタリック調成形品の透明性が低下し、とりわけ射出成形時に製品金型内で分流した溶融樹脂材料の2つ以上の流れが合流する部分(ウェルド部)においてメタリック外観の不良が発生したり、また深みのあるメタリック外観が得らないという問題があった。   However, by using these methods, a metallic appearance can be obtained, but the design properties have not yet been satisfactory. Specifically, in the conventional method, a relatively large amount of metallic pigment is added to obtain a metallic appearance, so that the transparency of the obtained metallic-like molded product is lowered, and particularly in the product mold at the time of injection molding. There is a problem that a defective metallic appearance occurs in a portion (weld portion) where two or more flows of the molten resin material divided in step 1 are joined, and a deep metallic appearance cannot be obtained.

特開2000−17169号公報JP 2000-17169 A 特開平4−359937号公報JP-A-4-359937 特開平10−158540号公報JP-A-10-158540 特開平5−93091号公報JP-A-5-93091

本発明が解決しようとする課題は、上記従来技術における問題点、すなわち、ウェルド部のメタリック外観のムラおよび深みのあるメタリック外観が得られないことに起因する製品価値の著しい低下を防止することにある。   The problem to be solved by the present invention is to prevent a problem in the above-described prior art, that is, a significant decrease in product value due to uneven metallic appearance of the weld portion and a deep metallic appearance. is there.

本発明者らは、かかる課題に鑑み鋭意研究を行った結果、透明性を有した着色ポリカーボネート樹脂にメタリック顔料を配合し、かつ当該着色メタリック樹脂組成物を射出成形して得られる厚み1.0mmの成形品の光線透過率を特定の範囲に調節することにより、驚くべきことにウェルド部のメタリック外観のムラが改善され、さらに深みのあるメタリック外観も得られる事を見いだし、本発明を完成するに至った。   As a result of intensive studies in view of such problems, the present inventors have blended a metallic pigment into a colored polycarbonate resin having transparency, and a thickness of 1.0 mm obtained by injection molding the colored metallic resin composition. By adjusting the light transmittance of the molded product to a specific range, it was surprisingly found that the unevenness of the metallic appearance of the weld portion was improved and a deep metallic appearance was obtained, and the present invention was completed. It came to.

すなわち、本発明は、ポリカーボネート樹脂(A)、メタリック顔料(B)およびそれ以外の着色剤(C)を必須成分として含有する樹脂組成物であって、当該樹脂組成物を射出成形して得られる厚み1.0mmの成形品の光線透過率(測定方法はASTM D−1003に準拠)が3〜50%であり、該メタリック顔料(B)が、金属皮膜を備えたガラスフレークであり、その配合量が、ポリカーボネート樹脂(A)100重量部あたり0.003重量部以上0.01重量部未満であることを特徴とする、外観に優れたメタリック調ポリカーボネート樹脂組成物を提供するものである。
That is, the present invention is a resin composition containing polycarbonate resin (A), metallic pigment (B) and other colorant (C) as essential components, and is obtained by injection molding the resin composition. light transmittance of the molded article thickness 1.0 mm (measuring method conforms to ASTM D-1003) is Ri 3-50% der, the metallic pigment (B) is a glass flake having a metal coating, the The compounding amount is 0.003 parts by weight or more and less than 0.01 parts by weight per 100 parts by weight of the polycarbonate resin (A) , and provides a metallic polycarbonate resin composition excellent in appearance.

本発明の外観に優れたメタリック調ポリカーボネート樹脂組成物から得られた成形品は、ポリカーボネート樹脂が本来有する優れた衝撃強度、耐熱性、熱安定性等性能を維持したまま、深みのあるメタリック外観を有し、かつ、ウェルド部のメタリック外観のムラの少なく、意匠性に優れている。更に、高価なメタリック顔料の添加量を低減できることからコスト的にも有利であり工業的利用価値が高い。   The molded product obtained from the metallic polycarbonate resin composition excellent in the appearance of the present invention has a deep metallic appearance while maintaining the excellent impact strength, heat resistance, thermal stability, etc. inherent to the polycarbonate resin. It has excellent unevenness in the metallic appearance of the weld part and is excellent in design. Furthermore, since the amount of expensive metallic pigment added can be reduced, it is advantageous in terms of cost and has high industrial utility value.

本発明にて使用されるポリカーボネート樹脂(A)とは、種々のジヒドロキシジアリール化合物とホスゲンとを反応させるホスゲン法、またはジヒドロキシジアリール化合物とジフェニルカーボネートなどの炭酸エステルとを反応させるエステル交換法によって得られる重合体であり、代表的なものとしては、2,2−ビス(4−ヒドロキシフェニル)プロパン(通称ビスフェノールA)から製造されたポリカーボネート樹脂が挙げられる。   The polycarbonate resin (A) used in the present invention is obtained by a phosgene method in which various dihydroxydiaryl compounds and phosgene are reacted, or a transesterification method in which a dihydroxydiaryl compound and a carbonate such as diphenyl carbonate are reacted. A typical example of the polymer is a polycarbonate resin produced from 2,2-bis (4-hydroxyphenyl) propane (commonly referred to as bisphenol A).

上記ジヒドロキシジアリール化合物としては、ビスフェノールAの他に、ビス(4−ヒドロキシフェニル)メタン、1,1−ビス(4−ヒドロキシフェニル)エタン、2,2−ビス(4−ヒドロキシフェニル)ブタン、2,2−ビス(4−ヒドロキシフェニル)オクタン、ビス(4−ヒドロキシフェニル)フェニルメタン、2,2−ビス(4−ヒドロキシフェニル−3−メチルフェニル)プロパン、1,1−ビス(4−ヒドロキシ−3−第三ブチルフェニル)プロパン、2,2−ビス(4−ヒドロキシ−3−ブロモフェニル)プロパン、2,2−ビス(4−ヒドロキシ−3,5−ジブロモフェニル)プロパン、2,2−ビス(4−ヒドロキシ−3,5−ジクロロフェニル)プロパンのようなビス(ヒドロキシアリール)アルカン類、1,1−ビス(4−ヒドロキシフェニル)シクロペンタン、1,1−ビス(4−ヒドロキシフェニル)シクロヘキサンのようなビス(ヒドロキシアリール)シクロアルカン類、4,4′−ジヒドロキシジフェニルエーテル、4,4′−ジヒドロキシ−3,3′−ジメチルジフェニルエーテルのようなジヒドロキシジアリールエーテル類、4,4′−ジヒドロキシジフェニルスルフィドのようなジヒドロキシジアリールスルフィド類、4,4′−ジヒドロキシジフェニルスルホキシド、4,4′−ジヒドロキシ−3,3′−ジメチルジフェニルスルホキシドのようなジヒドロキシジアリールスルホキシド類、4,4′−ジヒドロキシジフェニルスルホン、4,4′−ジヒドロキシ−3,3′−ジメチルジフェニルスルホンのようなジヒドロキシジアリールスルホン類等が挙げられる。   Examples of the dihydroxydiaryl compound include bisphenol 4-, 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) -Tert-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- (4-hydroxyphenyl) cyclopentane, bis (hydroxyaryl) cycloalkanes such as 1,1-bis (4-hydroxyphenyl) cyclohexane, 4,4'-dihydroxydiphenyl ether, 4,4'-dihydroxy-3 Dihydroxy diaryl ethers such as 3,3'-dimethyldiphenyl ether, dihydroxy diaryl sulfides such as 4,4'-dihydroxydiphenyl sulfide, 4,4'-dihydroxydiphenyl sulfoxide, 4,4'-dihydroxy-3,3 ' Dihydroxy diaryl sulfoxides such as dimethyldiphenyl sulfoxide, dihydroxy diary such as 4,4'-dihydroxydiphenyl sulfone, 4,4'-dihydroxy-3,3'-dimethyldiphenyl sulfone Sulfone, and the like.

これらは単独または2種類以上混合して使用されるが、これらの他に、ピペラジン、ジピペリジルハイドロキノン、レゾルシン、4,4′−ジヒドロキシジフェニル等を混合して使用してもよい。   These may be used alone or in combination of two or more. In addition to these, piperazine, dipiperidyl hydroquinone, resorcin, 4,4′-dihydroxydiphenyl, and the like may be used in combination.

さらに、上記のジヒドロキシアリール化合物と以下に示すような3価以上のフェノール化合物を混合使用してもよい。3価以上のフェノールとしてはフロログルシン、4,6−ジメチル−2,4,6−トリ−(4−ヒドロキシフェニル)−ヘプテン、2,4,6−ジメチル−2,4,6−トリ−(4−ヒドロキシフェニル)−ヘプタン、1,3,5−トリ−(4−ヒドロキシフェニル)−ベンゾール、1,1,1−トリ−(4−ヒドロキシフェニル)−エタンおよび2,2−ビス−〔4,4−(4,4′−ジヒドロキシジフェニル)−シクロヘキシル〕−プロパンなどが挙げられる。   Furthermore, the above dihydroxyaryl compound and a trivalent or higher phenol compound as shown below may be used in combination. Trihydric or higher phenols include phloroglucin, 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.

ポリカーボネート樹脂(A)の粘度平均分子量は、特に制限はないが、成形加工性、強度の面より通常10000〜100000、より好ましくは14000〜30000、さらに好ましくは16000〜26000の範囲である。また、かかるポリカーボネート樹脂(A)を製造するに際し、分子量調整剤、触媒等を必要に応じ使用することができる。   The viscosity average molecular weight of the polycarbonate resin (A) is not particularly limited, but is usually in the range of 10,000 to 100,000, more preferably 14,000 to 30,000, and even more preferably 16,000 to 26,000 in terms of moldability and strength. Moreover, when manufacturing this polycarbonate resin (A), a molecular weight regulator, a catalyst, etc. can be used as needed.

本発明にて使用されるメタリック顔料(B)としては、金属被膜を備えたガラスフレーク、平均粒径が100μm以下のアルミニウム粉末等が挙げられる。とりわけ、金属被膜を備えたガラスフレークが好適に使用される。   Examples of the metallic pigment (B) used in the present invention include glass flakes provided with a metal film, aluminum powder having an average particle size of 100 μm or less, and the like. In particular, glass flakes with a metal coating are preferably used.

本発明にて使用されるメタリック顔料(B)以外の着色剤(C)としては、特に限定されないが、着色、造粒加工を行なうことでポリカーボネート樹脂(A)を劣化させる(例えば分子量低下)等の不具合を起こさせない染料および顔料が好適に使用できる。好ましいメタリック調の外観を得るには、カーボンブラック等のダーク系の着色剤の使用が好適である。   The colorant (C) other than the metallic pigment (B) used in the present invention is not particularly limited, but the polycarbonate resin (A) is deteriorated by coloring and granulating (for example, molecular weight reduction), etc. Dyes and pigments that do not cause the above problems can be preferably used. In order to obtain a preferable metallic appearance, it is preferable to use a dark colorant such as carbon black.

本発明の外観に優れたメタリック調ポリカーボネート樹脂組成物は、これを射出成形して得られる厚み1.0mmの成形品の光線透過率が3〜50%であることを要件とする。当該光線透過率は、ASTM D−1003に準拠して測定される。   The metallic polycarbonate resin composition excellent in appearance of the present invention is required to have a light transmittance of 3 to 50% of a molded product having a thickness of 1.0 mm obtained by injection molding. The light transmittance is measured according to ASTM D-1003.

前記の光線透過率が3%未満である場合は、深みのあるメタリック外観を得る事が困難になり、またウェルド部のメタリック外観のムラが発生し、外観に劣るので好ましくない。一方、前記の光線透過率が50%を超える場合は、成形品が透けて見えることから深みのあるメタリック外観を得る事が困難になり、意匠性に劣るので好ましくない。好ましい光線透過率の範囲は3〜40%、より好ましくは5〜30%である。   When the light transmittance is less than 3%, it is difficult to obtain a deep metallic appearance, and unevenness in the metallic appearance of the weld portion occurs, resulting in poor appearance. On the other hand, when the light transmittance exceeds 50%, it is difficult to obtain a deep metallic appearance because the molded product can be seen through, which is not preferable because of poor design. The range of the light transmittance is preferably 3 to 40%, more preferably 5 to 30%.

前記の光線透過率の値は、使用されるメタリック顔料(B)およびそれ以外の着色剤(C)の配合量をそれぞれ加減することで最適範囲に調整することができる。   The value of the light transmittance can be adjusted to the optimum range by adjusting the blending amounts of the metallic pigment (B) and the other colorant (C) used.

また、メタリック顔料(B)の配合量としては、ポリカーボネート樹脂(A)100重量部に対し、0.003重量部以上0.01重量部未満が好ましい。より好ましくは0.005〜0.009重量部、さらに好ましくは0.006〜0.008重量部の範囲である。   Moreover, as a compounding quantity of a metallic pigment (B), 0.003 weight part or more and less than 0.01 weight part are preferable with respect to 100 weight part of polycarbonate resin (A). More preferably, it is 0.005-0.009 weight part, More preferably, it is the range of 0.006-0.008 weight part.

本発明の各種配合成分(A)、(B)および(C)の配合方法は、特に制限はなく、任意の混合機、例えばタンブラー、リボンブレンダー、高速ミキサー等によりこれらを混合し、通常の単軸または二軸押出機等で溶融混練する方法があげられる。また、これら配合成分の配合順序、あるいは一括混合、分割混合を採用することについても特に制限はない。   The blending method of the various blending components (A), (B) and (C) of the present invention is not particularly limited, and these are mixed by an optional mixer such as a tumbler, ribbon blender, high speed mixer, etc. Examples thereof include a melt kneading method using a screw or twin screw extruder. Moreover, there is no restriction | limiting in particular also about the mixing | blending order of these compounding components, or employ | adopting batch mixing and division | segmentation mixing.

また、混合時、必要に応じて他の公知の添加剤、例えば離型剤、紫外線吸収剤、帯電防止剤、酸化防止剤、リン系熱安定剤、展着剤(エポキシ大豆油、流動パラフィン等)等を配合することができる。   In addition, other known additives such as mold release agents, UV absorbers, antistatic agents, antioxidants, phosphorous heat stabilizers, spreading agents (epoxy soybean oil, liquid paraffin, etc.) may be used at the time of mixing. ) And the like.

以下に、本発明を実施例により具体的に説明するが、本発明はこれら実施例により何ら制限されるものではない。なお、部や%は特に断りのない限り重量基準に基づく。   EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. Parts and% are based on weight unless otherwise specified.

使用した配合成分の詳細は、以下のとおりである。
ポリカーボネート樹脂:
住友ダウ社製 カリバー200−20(粘度平均分子量:19000)
(以下、PCと略記)
メタリック顔料:
日本板硝子社製 メタシャインMC5090PS(以下、Mと略記)
(平均粒径150μm、平均厚さ5μmのガラスフレークに銀をコーティングした
メタリック顔料)
着色剤:
三菱カーボン社製 カーボン850(以下、CBと略記)
The details of the used blending components are as follows.
Polycarbonate resin:
Caliber 200-20 (viscosity average molecular weight: 19000) manufactured by Sumitomo Dow
(Hereafter abbreviated as PC)
Metallic pigment:
Metashine MC5090PS (hereinafter abbreviated as M) manufactured by Nippon Sheet Glass Co., Ltd.
(Metallic pigment in which silver is coated on glass flakes having an average particle size of 150 μm and an average thickness of 5 μm)
Colorant:
Carbon 850 manufactured by Mitsubishi Carbon Corporation (hereinafter abbreviated as CB)

前述の各種配合成分を表1に示す配合比率にて一括してタンブラーに投入し、10分間乾式混合した後、二軸押出機(神戸製鋼所製KTX37)を用いて、溶融温度280℃にて混練し、ポリカーボネート樹脂組成物のペレットを得た。   The above-mentioned various blending components are collectively put into a tumbler at the blending ratio shown in Table 1, and after dry mixing for 10 minutes, using a twin screw extruder (KTX37 manufactured by Kobe Steel) at a melting temperature of 280 ° C. It knead | mixed and the pellet of the polycarbonate resin composition was obtained.

(成形品の外観評価)
上記で得られた各種樹脂組成物のペレットをそれぞれ125℃で4時間乾燥した後に、射出成型機(日本製鋼所製J−100SAII)を用いて設定温度280℃、射出圧力1600kg/cmにて外観評価用試験片(150x90x3.0mm)を作成した。尚、試験片の中央にウェルドが発生するように、当該試験片作成のための金型には長手方向両側にゲートを設けた。ウェルド部の外観、メタリック感及び深みのあるメタリック外観を目視にて観察し、以下の基準に基づき外観の判定を行った。結果を表1に示す。
ウェルド部のメタリック外観:
外観良好(○):ウェルド部でも、一様なメタリック外観を得る事が出来る。
外観不良(×):ウェルド部を境にメタリック外観が大幅に異なる。
メタリック感:
外観良好(○):メタリック顔料の輝きが見られ意匠性に優れる。
外観不良(×):メタリック顔料の輝きが見られず意匠性に劣る。
深みのあるメタリック外観:
外観良好(○):深みのあるメタリック外観を有し意匠性に優れる
外観不良(×):深みのあるメタリック外観が見られず意匠性に劣る。
(Appearance evaluation of molded products)
The pellets of the various resin compositions obtained above were dried at 125 ° C. for 4 hours, respectively, and then set at a setting temperature of 280 ° C. and an injection pressure of 1600 kg / cm 2 using an injection molding machine (J-100SAII manufactured by Nippon Steel). A test piece for external appearance evaluation (150 × 90 × 3.0 mm) was prepared. In addition, the mold for producing the test piece was provided with gates on both sides in the longitudinal direction so that a weld was generated at the center of the test piece. The appearance of the weld part, the metallic appearance, and the metallic appearance with depth were visually observed, and the appearance was determined based on the following criteria. The results are shown in Table 1.
Weld metallic appearance:
Good appearance (O): A uniform metallic appearance can be obtained even in the welded portion.
Appearance failure (×): The metallic appearance is greatly different from the weld part.
Metallic feeling:
Good appearance (◯): The metallic pigment is bright and the design is excellent.
Appearance defect (x): The metallic pigment is not bright and the design is inferior.
Deep metallic appearance:
Appearance is good (O): has a deep metallic appearance and is excellent in design. Poor appearance (x): A deep metallic appearance is not seen and the design is inferior.

(光線透過率の評価)
得られた各種樹脂組成物のペレットをそれぞれ125℃で4時間乾燥した後に、射出成型機(日本製鋼所製J−100SAII)を用いて設定温度280℃、射出圧力1600kg/cmにて外観評価用試験片(90x50x3、2、1mmの3段プレート)を作成した。このプレートの1mm厚みの部分を村上色彩技術研究所製分光光度計(CMS−35SP、光源D65、光学条件S.C.I)を用いてASTM D−1003に準拠して光線透過率を測定した。
(Evaluation of light transmittance)
The pellets of the various resin compositions obtained were each dried at 125 ° C. for 4 hours, and then evaluated for external appearance at a set temperature of 280 ° C. and an injection pressure of 1600 kg / cm 2 using an injection molding machine (J-100SAII manufactured by Nippon Steel). Test pieces (90 × 50 × 3, 2, 1 mm three-stage plate) were prepared. The light transmittance of a 1 mm thick portion of this plate was measured according to ASTM D-1003 using a spectrophotometer (CMS-35SP, light source D65, optical condition SCI) manufactured by Murakami Color Research Laboratory. .

Figure 0005427372
Figure 0005427372

ポリカーボネート樹脂組成物が本発明の構成要件を満足する場合(実施例1〜3)にあっては、全ての評価項目にわたり良好な結果を示した。   When the polycarbonate resin composition satisfied the constituent requirements of the present invention (Examples 1 to 3), good results were exhibited over all the evaluation items.

一方、ポリカーボネート樹脂組成物が本発明の構成要件を満足しない場合においては、いずれの場合も何らかの欠点を有していた。
比較例1は、メタリック顔料の配合量が少なく、かつ、光線透過率が本発明の定める範囲よりも低い例であり、ウェルド部のメタリック外観、メタリック感および深みのあるメタリック外観に劣っていた。
比較例2は、メタリック顔料の配合量が比較例1よりも多く、かつ、光線透過率が本発明の定める範囲よりも低い例であり、メタリック感は改善されるものの、ウェルド部のメタリック外観および深みのあるメタリック外観に劣っていた。
比較例3は、光線透過率が本発明の定める範囲より高い例であり、ウェルド部のメタリック外観および深みのあるメタリック外観に劣っていた
On the other hand, in the case where the polycarbonate resin composition does not satisfy the constituent requirements of the present invention, each case has some drawbacks.
Comparative Example 1 was an example in which the blending amount of the metallic pigment was small and the light transmittance was lower than the range defined by the present invention, and was inferior to the metallic appearance, metallic feeling and deep metallic appearance of the weld part.
Comparative Example 2 is an example in which the compounding amount of the metallic pigment is larger than that of Comparative Example 1 and the light transmittance is lower than the range defined by the present invention, and although the metallic feeling is improved, It was inferior to the deep metallic appearance.
Comparative Example 3 is an example in which the light transmittance is higher than the range defined by the present invention, and was inferior to the metallic appearance and the deep metallic appearance of the weld portion.

Claims (3)

ポリカーボネート樹脂(A)、メタリック顔料(B)およびそれ以外の着色剤(C)を必須成分として含有する樹脂組成物であって、当該樹脂組成物を射出成形して得られる厚み1.0mmの成形品の光線透過率(測定方法はASTM D−1003に準拠)が3〜50%であり、該メタリック顔料(B)が、金属皮膜を備えたガラスフレークであり、その配合量が、ポリカーボネート樹脂(A)100重量部あたり0.003重量部以上0.01重量部未満であることを特徴とする、外観に優れたメタリック調ポリカーボネート樹脂組成物。 A resin composition containing polycarbonate resin (A), metallic pigment (B), and other colorant (C) as essential components, and having a thickness of 1.0 mm obtained by injection molding the resin composition light transmittance goods (measuring method conforms to ASTM D-1003) is Ri 3-50% der, the metallic pigment (B) is a glass flake having a metal coating, its amount, the polycarbonate resin (A) A metallic polycarbonate resin composition excellent in appearance, characterized by being 0.003 part by weight or more and less than 0.01 part by weight per 100 parts by weight . メタリック顔料(B)の配合量が、ポリカーボネート樹脂(A)100重量部あたり0.006〜0.008重量部であることを特徴とする請求項1記載の外観に優れたメタリック調ポリカーボネート樹脂組成物。   2. A metallic polycarbonate resin composition having excellent appearance according to claim 1, wherein the compounding amount of the metallic pigment (B) is 0.006 to 0.008 parts by weight per 100 parts by weight of the polycarbonate resin (A). . 請求項1または2に記載の外観に優れたメタリック調ポリカーボネート樹脂組成物を成形してなる外観に優れたメタリック調成形品。   A metallic-like molded article having an excellent appearance, formed by molding the metallic polycarbonate resin composition having an excellent appearance according to claim 1 or 2.
JP2008164513A 2008-06-24 2008-06-24 Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same. Expired - Fee Related JP5427372B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008164513A JP5427372B2 (en) 2008-06-24 2008-06-24 Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008164513A JP5427372B2 (en) 2008-06-24 2008-06-24 Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same.

Publications (2)

Publication Number Publication Date
JP2010006861A JP2010006861A (en) 2010-01-14
JP5427372B2 true JP5427372B2 (en) 2014-02-26

Family

ID=41587712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008164513A Expired - Fee Related JP5427372B2 (en) 2008-06-24 2008-06-24 Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same.

Country Status (1)

Country Link
JP (1) JP5427372B2 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2651058B2 (en) * 1991-06-06 1997-09-10 帝人化成株式会社 Resin composition
JPH09194631A (en) * 1996-01-22 1997-07-29 Japan Synthetic Rubber Co Ltd Thermoplastic resin composition and molded product therefrom
JP3994245B2 (en) * 1998-12-01 2007-10-17 東洋アルミニウム株式会社 Aluminum flakes for resin kneading and resin moldings
JP2001261978A (en) * 2000-03-21 2001-09-26 Teijin Chem Ltd Thermoplastic resin composition
JP2003292717A (en) * 2002-04-03 2003-10-15 Toray Ind Inc Resin for decorative use and molded product
WO2004026970A1 (en) * 2002-09-20 2004-04-01 Toyo Aluminium Kabushiki Kaisha Gloss pigment for addition to resin, and resin composition and formed resin article comprising the same
JP5463002B2 (en) * 2007-12-12 2014-04-09 出光興産株式会社 Polycarbonate resin composition, polycarbonate resin molded article and method for producing the same

Also Published As

Publication number Publication date
JP2010006861A (en) 2010-01-14

Similar Documents

Publication Publication Date Title
US20120220708A1 (en) Polycarbonate resin composition, polycarbonate resin molded article, and manufacturing method therefor
KR20150076534A (en) Thermoplastic resin composition
JP5106066B2 (en) A polycarbonate resin composition excellent in the appearance of a weld part and a molded product comprising the same.
JP2011074098A (en) Polycarbonate resin composition excellent in jet-black color property
JP5427372B2 (en) Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same.
KR102176692B1 (en) Polycarbonate-abs alloy resin composition with reduced gloss and light resistance and molded article comprising the same
JP5427373B2 (en) Metallic polycarbonate resin composition excellent in appearance and molded product comprising the same.
JP5610753B2 (en) Polycarbonate resin composition with excellent jetness.
JP2013112737A (en) Resin composition
JP2013124273A (en) Polycarbonate resin composition excellent in ebony property
JP2016044523A (en) Door handle for vehicle
KR102200890B1 (en) Polycarbonate resin composition having excellent chemical resistance in appearance characteristics
JP2011137116A (en) Electroconductive polycarbonate resin composition and molding obtained therefrom
JP6471433B2 (en) Method for producing resin-coated metal long fiber pellets
JP4525998B2 (en) Light-resistant polycarbonate resin composition and molded article comprising the same
JP5252506B2 (en) Laminate with metallic gloss
JP5408671B2 (en) Polycarbonate resin composition with excellent jetness.
JP4518448B2 (en) Light-resistant polycarbonate resin composition and laminate comprising the same
KR20230101487A (en) Thermoplastic resin composition and molded article using the same
JP5825926B2 (en) Polycarbonate resin composition
JP2011132342A (en) Housing for personal digital assistant
JP4721669B2 (en) Polycarbonate resin composition
JP2006037030A (en) Polycarbonate resin composition
JP6652332B2 (en) Glass fiber reinforced polycarbonate resin composition
JP2012056973A (en) Polycarbonate resin composition

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20110405

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20120409

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130729

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130920

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20131121

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20131202

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 5427372

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees