JP2004168997A - レーザー光透過性着色熱可塑性樹脂組成物及びレーザー溶着方法 - Google Patents
レーザー光透過性着色熱可塑性樹脂組成物及びレーザー溶着方法 Download PDFInfo
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- JP2004168997A JP2004168997A JP2003331910A JP2003331910A JP2004168997A JP 2004168997 A JP2004168997 A JP 2004168997A JP 2003331910 A JP2003331910 A JP 2003331910A JP 2003331910 A JP2003331910 A JP 2003331910A JP 2004168997 A JP2004168997 A JP 2004168997A
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- laser light
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- thermoplastic resin
- resin composition
- laser
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/009—Working by laser beam, e.g. welding, cutting or boring using a non-absorbing, e.g. transparent, reflective or refractive, layer on the workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/18—Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/244—Overlap seam welding
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- B29C66/7332—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being coloured
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
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Abstract
【解決手段】 ジスアゾ酸性染料(1)から得られるアニオン成分と有機アンモニウム成分により構成されるジスアゾ造塩染料を含有するレーザー光透過性着色熱可塑性樹脂組成物。
【化1】
・・・(1)
E:式(2)又は式(3)
R1・R2:アリール、ピラゾロン
E、R1、及びR2の1以上がスルホン酸基を有する
【化2】
・・・(2)
R3・R4:水素原子、アルキル、スルホン酸基
【化3】
・・・(3)
R5・R6:水素原子、スルホン酸基
【化4】
・・・(4)
R15:スルホン酸基
レーザー光透過性着色熱可塑性樹脂組成物からなるレーザー光透過材とレーザー光吸収材が当接した状態で、レーザー光がレーザー光透過材を透過してレーザー光吸収材に吸収されるように照射するレーザー溶着方法。
【選択図】 なし
Description
[式(1)中、
Eは、下記式(2)、式(3)、又は式(4)で表される基を示し、
R1及びR2は、それぞれ独立して、置換基を有しない若しくは有するアリール基、又は置換基を有しない若しくは有するピラゾロン基を示し、
E、R1、及びR2の何れか1又は2以上が、置換基としてスルホン酸基を有する。]
[式(5)中、R7乃至R10は、それぞれ独立して、水素原子、アルキル基、シクロアルキル基、アルコキシアルキル基、アルカノール基、置換基を有しない若しくは有するアリール基、置換基を有しない若しくは有するアラルキル基、又は下記式(A)で表される基を示す。]
Eは、上記式(2)、式(3)、又は式(4)で表される基を示し、
R1及びR2は、それぞれ独立して、
置換基を有しない若しくは環上に置換基(例えば、アルキル基[例えばメチル、エチル、プロピル、isoプロピル、n-ブチル、tert-ブチル、n−ペンチル、isoペンチル、ヘキシル、ヘプチル、オクチル等の炭素数1乃至8のアルキル基]、置換基[例えば炭素数1乃至4のアルキル、Cl、Br等のハロゲン等]を有する若しくは有しないアリール基[例えばフェニル基、ナフチル基等]、水酸基、スルホン酸基、カルボキシル基、ハロゲン[例えばCl、Br等]、アルコキシ基[例えばメトキシ、エトキシ、プロポキシ等の炭素数1乃至8のアルコキシ基]、アミノ基、又は置換基[例えば炭素数1乃至4のアルキル、Cl、Br等のハロゲン等]を有する若しくは有しないアニリド基)を有するアリール基[例えばフェニル基、ナフチル基等]、又は
置換基を有しない若しくは置換基(例えば、アルキル基[例えばメチル、エチル、プロピル、isoプロピル、n-ブチル、tert-ブチル、n−ペンチル、isoペンチル、ヘキシル、ヘプチル、オクチル等の炭素数1乃至8のアルキル基]、置換基を有しない若しくは置換基[例えば炭素数1乃至4のアルキル、Cl、Br等のハロゲン等]を有するアリール基[例えばフェニル基、ナフチル基等]、水酸基、カルボキシル基、スルホン酸基、ハロゲン[例えばCl、Br等]、又はアルコキシ基[例えばメトキシ、エトキシ、プロポキシ等の炭素数1乃至8のアルコキシ基])を有するピラゾロン基を示し、
E、R1、及びR2の何れか1又は2以上が、置換基としてスルホン酸基を有し、その各スルホン酸基は、−SO3Hであるか、又はアルカリ金属(Li、Na、K等)若しくはアルカリ土類金属(Mg、Ca、Ba等)等の塩の形(−SO3[アルカリ金属若しくはアルカリ土類金属]等)であってもよい。なお、上記式(1)を用いて本発明におけるジスアゾ造塩染料のアニオン成分を表した場合、式(1)における1以上のスルホン酸基が−SO3 −となる。
上記式(3)において、R5及びR6は、それぞれ独立して、水素原子又はスルホン酸基を示す。
式(5)において、R7乃至R10は、それぞれ独立して、
水素原子、
アルキル基(例えば、メチル、エチル、n−プロピル、isoプロピル、n−ブチル、isoブチル、tert−ブチル、n−ペンチル、isoペンチル、tert−ペンチル、ヘキシル、ヘプチル、オクチル、ノニル、デシル、ウンデシル、ドデシル等の枝分れがあってもよい炭素数1乃至12のアルキル基)、
シクロアルキル基(例えば、シクロプロピル、シクロペンチル、シクロヘキシル、シクロヘプチル等の炭素数3乃至8のシクロアルキル基、又は、ジハイドロアジエチルアミンの残基)、
アルコキシアルキル基(例えば、[メトキシ、エトキシ、プロポキシ、ブトキシ、ペンチルオキシ、ヘキシルオキシ、又はオクチルオキシ等][メチル、エチル、プロピル、ブチル、ペンチル、又はオクチル等]等、すなわちエトキシメチル、メトキシエチル等の炭素数2乃至20のアルコキシアルキル基)、
置換基を有しない若しくは置換基[例えば、アミノ基、低級(炭素数1乃至4の)アルキル基、Cl、Br等のハロゲン]を有するアリール基(例えばフェニル、低級アルキル置換フェニル、ハロゲン化フェニル、ナフチル、アミノナフチル)、
置換基を有しない若しくは置換基[例えば、アミノ基、炭素数1乃至4のアルキル基、Cl、Br等のハロゲン]を有するアラルキル基(例えば、ベンジル基、α−メチルベンジル基、α,α−ジメチルベンジル基、α−ブチルベンジル基、フェネチル基、ナフチルアルキル基[例えば、ナフチルメチル、ナフチルエチル等])、又は
アルカノール基(例えば−CH2OH、−C2H4OH、−C3H6OH等)を示す。]
ポリエステル樹脂としては、例えばテレフタル酸とエチレングリコールとの重縮合反応によって得られるポリエチレンテレフタレート樹脂、及びテレフタル酸とブチレングリコールとの重縮合反応によって得られるポリブチレンテレフタレート樹脂を挙げることができる。その他のポリエステル樹脂の例としては、上記ポリエステル樹脂におけるテレフタル酸成分の一部(例えば15モル%以下[例えば0.5乃至15モル%]、好ましくは5モル%以下[例えば0.5乃至5モル%])および/またはエチレングリコール成分の一部(例えば15モル%以下[例えば0.5乃至15モル%]、好ましくは5モル%以下[例えば0.5乃至5モル%])を置換した共重合体を挙げることができる。また、2又は3種以上のポリエステル樹脂を混合したものであってもよい。
イソフタル酸、ナフタレンジカルボン酸、ジフェニルジカルボン酸、ジフェノキシエタンジカルボン酸、ジフェニルエーテルジカルボン酸、ジフェニルスルホンジカルボン酸等の芳香族ジカルボン酸;ヘキサヒドロテレフタル酸、ヘキサヒドロイソフタル酸等の脂環式ジカルボン酸;アジピン酸、セバチン酸、アゼライン酸等の脂肪族ジカルボン酸;p−β−ヒドロキシエトキシ安息香酸等の二官能性カルボン酸の1種又は2種以上を挙げることができる。
レーザー光透過性を有する他の青色着色剤と前記ジスアゾ造塩染料を含有する赤色レーザー光透過性着色熱可塑性樹脂組成物を混合して使用することにより紫色のレーザー光透過性着色熱可塑性樹脂組成物を得ることができる。
PBT(ポリブチレンテレフタレート樹脂)・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例1の着色剤・・・・0.80g
上記配合物をステンレス製タンブラーに入れ、1時間撹拌混合した。得られた混合物を、射出成形機(東洋機械金属社製 商品番号:Si−50)を用いて、シリンダー温度260℃、金型温度80℃で通常の方法で射出成形したところ、外観及び表面光沢が良好で色むらがない均一な赤色の試験片が得られた。
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例2の着色剤・・・・0.80g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例3の着色剤・・・・0.80g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例4の着色剤・・・・2.40g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例5の着色剤・・・・2.40g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例6の着色剤・・・・1.20g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
製造例7の着色剤・・・・2.40g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
比較製造例1の着色剤・・・・0.80g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
C.I.Pigment Red 144(ジスアゾ顔料)・・・・0.80g
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:5008AS)
C.I.Pigment Yellow 93(ジスアゾ顔料)・・・・0.80g
GF−PP(繊維強化ポリプロピレン樹脂)・・・・400g(日本ポリケム社製 商品番号:HG30U)
製造例1の着色剤・・・・0.80g
GF−PP・・・・400g(日本ポリケム社製 商品番号:HG30U)
製造例2の着色剤・・・・0.80g
GF−PP・・・・400g(日本ポリケム社製 商品番号:HG30U)
C.I.Pigment Yellow 147(アントラキノン系顔料)・・・・0.80g
GF−PP・・・・400g(日本ポリケム社製 商品番号:HG30U)
比較製造例2の着色剤・・・・0.80g
分光光度計(日本分光社製 商品番号:V−570型)に各試験片をセットし試験片:図1の試験片10における厚みが1.5mmの部分を、波長範囲λ=400乃至1200nmの範囲で透過率を測定した。表4及び5には、各試験片についての波長940nmの半導体レーザー光の透過率を示した。
試験片に白色のPET(ポリブチレンテレフタレート)フィルムを貼りつけ、それをオーブンに入れて160℃で3時間放置し、その後、試験片からPETフィルムを剥して観察し易いように無色透明のOHP(オーバーヘッドプロジェクタ)用シートに貼りつけた。
上記実施例1乃至9並びに比較例1乃至5の射出成形において、配合物の混合物により通常ショットを行った後、残りの混合物をポリブチレンテレフタレート樹脂の場合はシリンダー温度260℃のシリンダー内で、またポリプロピレン樹脂の場合は220℃のシリンダー内で15分間滞留させ、その後で射出成形を行って試験片を得た。
ポリブチレンテレフタレート樹脂を用いたレーザー光吸収性試験片(レーザー光吸収材)は以下のようにして作製した。
PBT・・・・400g(三菱エンジニアリングプラスチックス社製 商品番号:商品番号:5008AS)
カーボンブラック・・・・2.00g
GF−PP・・・・400g(日本ポリケム社製 商品番号:HG30U)
カーボンブラック・・・・0.80g
前記(4)で得られた溶着物に対し、JISK7113−1995に準じ、引張試験機(島津製作所社製AG−50kNE)にて、試験片10側とレーザー光吸収性試験片12側に縦方向(図1における左右方向)に試験速度10mm/minで引張試験を行って、引張溶着強度を測定した。
12 レーザー光吸収性試験片
14 レーザービーム
16 溶着部分
Claims (9)
- ジスアゾ造塩染料を含有してなるレーザー光透過性着色熱可塑性樹脂組成物。
- ジスアゾ造塩染料が、ジスアゾ酸性染料から得られるアニオン成分と有機アンモニウム成分とにより構成される造塩染料であり、前記酸性染料が下記式(1)で表される請求項1記載のレーザー光透過性着色熱可塑性樹脂組成物。
[式(1)中、
Eは、下記式(2)、式(3)、又は式(4)で表される基を示し、
R1及びR2は、それぞれ独立して、置換基を有しない若しくは有するアリール基、又は置換基を有しない若しくは有するピラゾロン基を示し、
E、R1、及びR2の何れか1又は2以上が、置換基としてスルホン酸基を有する。]
[式(2)中、R3及びR4は、それぞれ独立して、水素原子、アルキル基、又はスルホン酸基を示す。]
[式(3)中、R5及びR6は、それぞれ独立して、水素原子又はスルホン酸基を示す。]
[式(4)中、R15は、スルホン酸基を示す。] - 熱可塑性樹脂がポリエステル樹脂である請求項1乃至3の何れかに記載のレーザー光透過性着色熱可塑性樹脂組成物。
- 熱可塑性樹脂がポリプロピレン樹脂である請求項1乃至3の何れかに記載のレーザー光透過性着色熱可塑性樹脂組成物。
- 上記ジスアゾ造塩染料が、黄色、オレンジ色、赤色、青色又は紫色を呈する請求項1乃至5の何れかに記載のレーザー光透過性着色熱可塑性樹脂組成物。
- 黒色を呈する請求項1乃至5の何れかに記載のレーザー光透過性着色熱可塑性樹脂組成物。
- 請求項1乃至7記載の何れかのレーザー光透過性着色熱可塑性樹脂組成物からなるレーザー光透過材と、レーザー光吸収材とが当接した状態で、レーザー光が前記レーザー光透過材を透過して前記レーザー光吸収材に吸収されるようにそのレーザー光を照射することにより、前記レーザー光透過材とレーザー光吸収材との当接部を溶着させることを特徴とするレーザー溶着方法。
- レーザー光吸収材が、着色剤として少なくともカーボンブラックを用いたレーザー光吸収性着色樹脂組成物からなるものである請求項8記載のレーザー溶着方法。
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- 2003-11-05 US US10/702,674 patent/US7153384B2/en not_active Expired - Fee Related
- 2003-11-06 EP EP03025621A patent/EP1418202A3/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
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JP4446706B2 (ja) | 2010-04-07 |
EP1418202A3 (en) | 2004-11-17 |
US20040144483A1 (en) | 2004-07-29 |
EP1418202A2 (en) | 2004-05-12 |
US7153384B2 (en) | 2006-12-26 |
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