JP2013106622A - Illumination cover of electric decoration part for game machine - Google Patents

Illumination cover of electric decoration part for game machine Download PDF

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JP2013106622A
JP2013106622A JP2011251363A JP2011251363A JP2013106622A JP 2013106622 A JP2013106622 A JP 2013106622A JP 2011251363 A JP2011251363 A JP 2011251363A JP 2011251363 A JP2011251363 A JP 2011251363A JP 2013106622 A JP2013106622 A JP 2013106622A
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polycarbonate resin
electric decoration
game machine
parts
illumination cover
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Tadashi Shinomiya
忠司 四之宮
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Sumika Polycarbonate Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a polycarbonate-resin made illumination cover of an electric decoration part for a game machine which is remarkably improved in chemical resistance while maintaining transparency, impact resistance, heat resistance or the like coherent to a polycarbonate resin.SOLUTION: An illumination cover of an electric decoration component for a game machine is formed by being molded with a polycarbonate resin composition with 0.01 to 20 wt.pts. of specified alkylketene dimer (B) as an essential component with respect to 100 wt.pts. of the polycarbonate resin (A). This illumination cover of the electric decoration component for the game machine with the alkylketene dimer as the essential component has a superior transparency, impact resistance and heat resistance and also a superior chemical resistance. By this, even if a variety of chemicals such as hand cream and a cleaning agent adheres to this illumination cover of the electric decoration component for the game machine, the occurrence of a malfunction such as cracks can be prevented.

Description

本発明は、耐薬品性を改善したポリカーボネート樹脂製の遊技機用電飾部品の照明カバーに関する。   The present invention relates to an illumination cover for an electrical component for a gaming machine made of polycarbonate resin with improved chemical resistance.

ポリカーボネート樹脂は、透明性、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。最近では、透明性、耐衝撃性および耐熱性が優れることから、遊技機用電飾部品の照明カバーにも採用されている。とりわけ、パチンコ台やスロット台等の遊技機にはアクションの派手さやデザイン上、ならびに省電力の観点からLED光源を用いた電飾部品が最近では多用されており、これに伴い当該電飾部品の照明カバーに対しては高い耐熱性を要求される事から、ポリカーボネート樹脂が注目されている。しかしながら、ポリカーボネート樹脂から得られた遊技機用電飾部品の照明カバーにハンドクリーム、洗浄剤等の各種薬品が付着する事で割れ等の不具合が発生する場合があり、かかる不具合が発生しないように耐薬品性に優れたポリカーボネート樹脂が要望されている。   Polycarbonate resin is a thermoplastic resin excellent in transparency, impact resistance, heat resistance, thermal stability, and the like, and is widely used in fields such as electricity, electronics, ITE, machinery, and automobiles. Recently, since it is excellent in transparency, impact resistance, and heat resistance, it is also used as a lighting cover for electrical parts for gaming machines. In particular, for pachinko machines and slot machines, etc., lighting parts using LED light sources have recently been widely used from the viewpoint of flashy action and design as well as power saving. Polycarbonate resin has attracted attention because it requires high heat resistance for lighting covers. However, there are cases where defects such as cracks may occur due to the attachment of various chemicals such as hand creams and cleaning agents to the lighting covers of electrical parts for gaming machines obtained from polycarbonate resin, so that such defects do not occur. There is a demand for a polycarbonate resin having excellent chemical resistance.

上記欠点を改良する目的でポリカーボネート樹脂にポリエステル樹脂を配合した樹脂組成物が提案されている。しかしながら、ポリエステル樹脂を配合する事で、
(1)耐薬品性は若干改良されるものの、アタック性の強いアルカリ洗剤や機械油等が付着した場合に割れ等の不具合が発生するなど改良効果は十分とはいえず、
(2)ポリカーボネート樹脂の長所である透明性を大きく低下させると共に、
(3)ポリカーボネート樹脂の耐衝撃性が損なわれる、
という問題があった。
A resin composition in which a polyester resin is blended with a polycarbonate resin has been proposed for the purpose of improving the above disadvantages. However, by blending polyester resin,
(1) Although the chemical resistance is slightly improved, it cannot be said that the improvement effect is sufficient, such as the occurrence of defects such as cracking when an alkaline detergent or machine oil with a strong attack adheres.
(2) While greatly reducing the transparency, which is an advantage of polycarbonate resin,
(3) The impact resistance of the polycarbonate resin is impaired.
There was a problem.

また、耐衝撃強性を改良する為にポリカーボネート樹脂およびポリエステル樹脂からなる樹脂組成物にMBS等の耐衝撃改良材を配合する方法が提案されている。(特許文献1)しかしながら、MBSに起因する着色やポリエステル樹脂がエステル交換を起こして分解するという問題があり、更なる改良が求められていた。 In order to improve the impact resistance, a method of blending an impact resistance improving material such as MBS with a resin composition comprising a polycarbonate resin and a polyester resin has been proposed. (Patent Document 1) However, there is a problem that coloring caused by MBS and polyester resin cause degradation due to transesterification, and further improvement has been demanded.

特公昭55−9435号公報Japanese Patent Publication No.55-9435

本発明は、ポリカーボネート樹脂が本来有する透明性、衝撃性、耐熱性等を保持したまま、耐薬品性を著しく改善したポリカーボネート樹脂製の遊技機用電飾部品の照明カバーを提供することを目的とする。   It is an object of the present invention to provide a lighting cover for an electrical component for a gaming machine made of polycarbonate resin that has remarkably improved chemical resistance while maintaining the transparency, impact resistance, heat resistance, etc. inherent to the polycarbonate resin. To do.

本発明者らは、かかる課題に鑑み鋭意研究を行った結果、ポリカーボネート樹脂に特定のアルキルケテンダイマーを配合することにより驚くべきことに耐薬品性が著しく改良できることを見出し、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 found that chemical resistance can be remarkably improved by blending a specific alkyl ketene dimer with a polycarbonate resin, and the present invention is completed. It came.

すなわち、本発明は、ポリカーボネート樹脂(A)100重量部に対して、下記一般式1に示すアルキルケテンダイマー(B)0.01〜20重量部を必須成分とするポリカーボネート樹脂組成物を成形してなる遊技機用電飾部品の照明カバーを提供するものである。
一般式1:
That is, in the present invention, a polycarbonate resin composition containing 0.01 to 20 parts by weight of an alkyl ketene dimer (B) represented by the following general formula 1 as an essential component is molded with respect to 100 parts by weight of a polycarbonate resin (A). The lighting cover of the electrical parts for a gaming machine is provided.
General formula 1:

Figure 2013106622
(一般式1において、Rは、同一でも異なっても良いが、炭素数6〜33のアルキル基をあらわす。)
Figure 2013106622
(In General Formula 1, R may be the same or different, but represents an alkyl group having 6 to 33 carbon atoms.)

本発明の遊技機用電飾部品の照明カバーは、優れた透明性、耐衝撃性、耐熱性のみならず、優れた耐薬品性を有している。そのため、本発明の遊技機用電飾部品の照明カバーにハンドクリーム、洗浄剤等の各種薬品が付着しても割れ等の不具合の発生が抑えられる。   The lighting cover of the electrical parts for gaming machines of the present invention has not only excellent transparency, impact resistance and heat resistance, but also excellent chemical resistance. Therefore, even if various chemicals such as hand cream and cleaning agent adhere to the lighting cover of the electrical parts for gaming machines of the present invention, the occurrence of defects such as cracks can be suppressed.

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16000〜30000、さらに好ましくは18000〜22000の範囲である。また、かかるポリカーボネート樹脂を製造するに際し、分子量調整剤、触媒等を必要に応じて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 16,000 to 30,000, and even more preferably 18,000 to 22,000 in terms of moldability and strength. Moreover, when manufacturing this polycarbonate resin, a molecular weight modifier, a catalyst, etc. can be used as needed.

本発明にて使用されるアルキルケテンダイマー(B)は下記一般式にて示される化合物である。
一般式1:
The alkyl ketene dimer (B) used in the present invention is a compound represented by the following general formula.
General formula 1:

Figure 2013106622
Figure 2013106622

一般式1において、Rは、同一でも異なっても良いが、炭素数6〜33のアルキル基、好ましくは炭素数10〜21のアルキル基である。   In General Formula 1, R may be the same or different, but is an alkyl group having 6 to 33 carbon atoms, preferably an alkyl group having 10 to 21 carbon atoms.

一般式1において、更に好ましくは、Rは、同一でも異なっても良いが、炭素数が10〜21のアルキル基である化合物が使用できる。   In the general formula 1, more preferably, R may be the same or different, but a compound having an alkyl group having 10 to 21 carbon atoms can be used.

アルキルケテンダイマー(B)の配合量は、ポリカーボネート樹脂(A)100重量部あたり0.01〜20重量部である。0.01重量部未満では耐薬品性に劣り、20重量部を越えると造粒加工が困難になり樹脂組成物のペレットを得ることができなくなることから好ましくない。好ましい配合量は、0.01〜10重量部、更に好ましくは0.03〜5重量部である。   The compounding quantity of an alkyl ketene dimer (B) is 0.01-20 weight part per 100 weight part of polycarbonate resin (A). If it is less than 0.01 parts by weight, the chemical resistance is poor, and if it exceeds 20 parts by weight, granulation processing becomes difficult and it is not possible to obtain pellets of the resin composition. A preferable compounding amount is 0.01 to 10 parts by weight, more preferably 0.03 to 5 parts by weight.

本発明の各種配合成分(A)、(B)の配合方法には特に制限はなく、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ことができる。また、これら配合成分の配合順序や一括混合、分割混合を採用することについても特に制限はない。   There are no particular restrictions on the blending method of the various blending components (A) and (B) of the present invention, and these are mixed by an optional mixer such as a tumbler, ribbon blender, high-speed mixer, etc. It can be melt-kneaded with an extruder or the like. Moreover, there is no restriction | limiting in particular also about the mixing | blending order of these compounding components, collective 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、熱安定剤、染顔料、展着剤(エポキシ大豆油、流動パラフィン等)や強化材(ガラス繊維、炭素繊維、タルク、マイカ等)等、又、他の樹脂を配合することができる。   When mixing, other known additives such as mold release agents, ultraviolet absorbers, antistatic agents, antioxidants, thermal stabilizers, dyes and pigments, epoxy soy oil, liquid paraffin as necessary Etc.), reinforcing materials (glass fiber, carbon fiber, talc, mica, etc.) and other resins can be blended.

本発明の遊技機用電飾部品の照明カバーは、主として射出成形方法にて製造される。この場合、特に限定されないが、100〜300Tクラスの射出成形機を用いることができる。   The lighting cover of the electrical parts for gaming machines of the present invention is manufactured mainly by an injection molding method. In this case, although not particularly limited, an injection molding machine of 100 to 300T class can be used.

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.

使用した配合成分は、以下のとおりである。
ポリカーボネート樹脂:
ビスフェノールAとホスゲンから合成されたポリカーボネート樹脂
(住化スタイロンポリカーボネート社製 カリバー200−20
粘度平均分子量:19000、以下、PCと略記)
酸化防止剤:
アデカ社製 PEP36(以下、AOと略記)
アルキルケテンダイマー(B):
永恒化工社製 AKD1840(以下、AKDと略記)
The compounding components used are as follows.
Polycarbonate resin:
Polycarbonate resin synthesized from bisphenol A and phosgene (Caliber 200-20 manufactured by Sumika Stylon Polycarbonate Co., Ltd.)
Viscosity average molecular weight: 19000, hereinafter abbreviated as PC)
Antioxidant:
Adeca PEP36 (hereinafter abbreviated as AO)
Alkyl ketene dimer (B):
AKD1840 (hereinafter abbreviated as AKD) manufactured by Eiheng Chemical Company

前述の各種配合成分を表1および2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 ratios shown in Tables 1 and 2, and after dry mixing for 10 minutes, using a twin-screw extruder (Kobe Steel KTX37), a melting temperature of 280 ° C. To obtain pellets of polycarbonate resin composition.

(成形品の耐薬品性の評価)
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−100E−C5)を用いて設定温度280℃、射出圧力1600kg/cmにて試験片(127x13x3.2mm)を作成した。
得られた試験片を片持ち梁の耐薬品性試験の治具(図1参照)を用いて任意の歪みをかけて、試験片の中央部に下記薬剤をそれぞれ塗布した。
評価用薬剤
花王社製 マジックリン(以下、C1と略記)
ニベア花王社製 ニベアクリーム(以下、C2と略記)
上記の薬剤塗布後の試験片を23℃および85℃の雰囲気下で48時間放置し、試験片上の割れやヒビの位置から臨界歪み(%)を次式により求めた。
(Evaluation of chemical resistance of molded products)
The pellets of the various resin compositions obtained above were each dried at 125 ° C. for 4 hours, and then set using an injection molding machine (Japan Steel Works J-100E-C5) at a set temperature of 280 ° C. and an injection pressure of 1600 kg / cm 2. A test piece (127 × 13 × 3.2 mm) was prepared.
The obtained test piece was subjected to arbitrary distortion using a jig for chemical resistance test of a cantilever (see FIG. 1), and the following chemicals were respectively applied to the central part of the test piece.
Drug for evaluation Magiclin manufactured by Kao Corporation (hereinafter abbreviated as C1)
Nivea Kao Nivea Cream (hereinafter abbreviated as C2)
The test piece after the above chemical application was left in an atmosphere of 23 ° C. and 85 ° C. for 48 hours, and the critical strain (%) was determined from the position of cracks and cracks on the test piece by the following equation.

Figure 2013106622
Figure 2013106622

上記式にて求めた臨界歪みから、耐薬品性を下記基準にて判定し、臨界歪みが0.7%超(○〜◎)を合格とした。
耐薬品性の判定:
◎:臨界歪みが1.0%以上
○:臨界歪みが0.7%以上〜1.0%未満
△:臨界歪みが0.5%以上〜0.7%未満
×:臨界歪みが0.3%以上〜0.5%未満
××:臨界歪みが0.3%未満
From the critical strain obtained by the above formula, the chemical resistance was judged according to the following criteria, and the critical strain exceeded 0.7% (◯ to ◎) as acceptable.
Determination of chemical resistance:
◎: Critical strain is 1.0% or more ○: Critical strain is 0.7% or more to less than 1.0% △: Critical strain is 0.5% or more to less than 0.7% ×: Critical strain is 0.3 % Or more to less than 0.5% XX: Critical strain is less than 0.3%

(成形品の透明性の評価)
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−100E−C5)を用いて設定温度280℃、射出圧力1600kg/cmにて透明性評価用試験片(150x90x3.0mm)を作成した。
得られた試験片を用いてJIS K7361に準じ、試験片厚み3mmの光線透過率を測定し、光線透過率が80%以上を合格とした。
(Evaluation of transparency of molded products)
The pellets of the various resin compositions obtained above were each dried at 125 ° C. for 4 hours, and then set using an injection molding machine (Japan Steel Works J-100E-C5) at a set temperature of 280 ° C. and an injection pressure of 1600 kg / cm 2. A test piece for transparency evaluation (150 × 90 × 3.0 mm) was prepared.
Using the obtained test piece, the light transmittance of a test piece thickness of 3 mm was measured according to JIS K7361, and the light transmittance was determined to be 80% or more.

(成形品のノッチ付きシャルピー衝撃強度および荷重たわみ温度の評価)
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−100E−C5)を用いて設定温度280℃、射出圧力1600kg/cmにてISO試験法に準じた試験片を作成し、得られた試験片を用いてISO 179−1、ISO75−2に準じノッチ付きシャルピー衝撃強さ及び荷重たわみ温度を測定し、ノッチ付きシャルピー衝撃強度が10KJ/m以上、および、荷重たわみ温度が90℃以上を合格とした。
(Evaluation of notched Charpy impact strength and deflection temperature under load)
The pellets of the various resin compositions obtained above were each dried at 125 ° C. for 4 hours, and then set using an injection molding machine (Japan Steel Works J-100E-C5) at a set temperature of 280 ° C. and an injection pressure of 1600 kg / cm 2. A test piece according to the ISO test method was prepared using the obtained test piece, and the notched Charpy impact strength and the deflection temperature under load were measured according to ISO 179-1 and ISO 75-2. The strength was 10 KJ / m 2 or more and the deflection temperature under load was 90 ° C. or more.

Figure 2013106622
Figure 2013106622

Figure 2013106622
Figure 2013106622

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、耐薬品性、透明性、衝撃強度、耐熱性のそれぞれに亘って良好な結果を示した。   In the case where the polycarbonate resin composition satisfies the constituent requirements of the present invention (Examples 1 to 3), good results were exhibited in each of chemical resistance, transparency, impact strength, and heat resistance.

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。
アルキルケテンダイマーが添加されていない例(比較例1)およびアルキルケテンダイマーの添加量が本発明の定める範囲よりも少ない例(比較例2)においては、何れも耐薬品性に劣っていた。
比較例3はアルキルケテンダイマーの添加量が本発明の定める範囲より多い事から、造粒困難よりペレットが作成出来なかった。
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.
In the case where the alkyl ketene dimer was not added (Comparative Example 1) and the case where the amount of the alkyl ketene dimer added was less than the range defined by the present invention (Comparative Example 2), both had poor chemical resistance.
In Comparative Example 3, since the addition amount of the alkyl ketene dimer was larger than the range defined by the present invention, pellets could not be produced due to difficulty in granulation.

片持ち梁の耐薬品性試験の評価用治具の説明図である。It is explanatory drawing of the jig for evaluation of the chemical resistance test of a cantilever.

1 耐薬品性試験の評価用治具本体
2 試験片
3 試験片の固定用ネジ
4 試験片に歪を与えるネジ
1 Jig body for evaluation of chemical resistance test 2 Test piece 3 Fixing screw for test piece 4 Screw giving distortion to the test piece

Claims (4)

ポリカーボネート樹脂(A)100重量部に対して、下記一般式1に示すアルキルケテンダイマー(B)0.01〜20重量部を必須成分とするポリカーボネート樹脂組成物を成形してなる遊技機用電飾部品の照明カバー。
一般式1:
Figure 2013106622
(一般式1において、Rは、同一でも異なっても良いが、炭素数6〜33のアルキル基をあらわす。)
Electric decoration for gaming machines formed by molding a polycarbonate resin composition containing 0.01 to 20 parts by weight of an alkyl ketene dimer (B) represented by the following general formula 1 as an essential component with respect to 100 parts by weight of a polycarbonate resin (A) Lighting cover for parts.
General formula 1:
Figure 2013106622
(In General Formula 1, R may be the same or different, but represents an alkyl group having 6 to 33 carbon atoms.)
アルキルケテンダイマー(B)の配合量が、ポリカーボネート樹脂(A)100重量部あたり0.03〜5重量部であることを特徴とする請求項1に記載の遊技機用電飾部品の照明カバー。
The lighting cover for an electrical component for a gaming machine according to claim 1, wherein the compounding amount of the alkyl ketene dimer (B) is 0.03 to 5 parts by weight per 100 parts by weight of the polycarbonate resin (A).
遊技機がパチンコ台である請求項1に記載の遊技機用電飾部品の照明カバー。
The lighting cover for an electrical component for a gaming machine according to claim 1, wherein the gaming machine is a pachinko machine.
遊技機がスロット台である請求項1に記載の遊技機用電飾部品の照明カバー。   The lighting cover for an electrical component for a gaming machine according to claim 1, wherein the gaming machine is a slot base.
JP2011251363A 2011-11-17 2011-11-17 Illumination cover of electric decoration part for game machine Pending JP2013106622A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015027330A (en) * 2013-07-30 2015-02-12 住化スタイロンポリカーボネート株式会社 Movable presentation accessory for game machine
JP2015204890A (en) * 2014-04-17 2015-11-19 住化スタイロンポリカーボネート株式会社 Movable performance accessory for game machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015027330A (en) * 2013-07-30 2015-02-12 住化スタイロンポリカーボネート株式会社 Movable presentation accessory for game machine
JP2015204890A (en) * 2014-04-17 2015-11-19 住化スタイロンポリカーボネート株式会社 Movable performance accessory for game machine

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