JP2011524279A - プラスチック材料を押し出す方法 - Google Patents
プラスチック材料を押し出す方法 Download PDFInfo
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- JP2011524279A JP2011524279A JP2011513903A JP2011513903A JP2011524279A JP 2011524279 A JP2011524279 A JP 2011524279A JP 2011513903 A JP2011513903 A JP 2011513903A JP 2011513903 A JP2011513903 A JP 2011513903A JP 2011524279 A JP2011524279 A JP 2011524279A
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Abstract
Description
ここで、KW0は、半径における完全な自己拭き取り形状の先端角度であり、πは、円の円周長さを円の半径に関連づける定数(π=3.14159)である。密接に互いにかみ合う一組の要素の両要素にわたる先端角度の合計SKW0は、必ず、
ここでZはスクリュー条数であり、Aは2つのスクリュー要素間の中心線距離であり、DEはスクリュー要素の外径である。本発明に係るスクリュー要素のスラスト面および裏面の形状は、要求通りに個々に設計されうる。また、上記条の形状を定める縁は、要求通りに丸みをつけられ得る。
・対応する円弧の上記角度が同じ大きさであり、
・対応する円弧の上記半径の合計が上記中心線距離と等しく、
・上記駆動スクリュー形状の上記円弧の中心点と上記円弧の端点との間の接続線の各1つが、上記従動スクリュー形状の上記対応する円弧の中心点と上記円弧の端点との間の接続線の各1つに対して平行に走り、
・上記円弧の上記中心点から始まり、上記駆動スクリュー形状の上記円弧の端点がある方向は、いずれの場合にも、上記従動スクリュー形状の上記円弧の中心点から始まり、上記従動スクリュー形状の上記対応する円弧の端点がある方向に対して逆向きであり、
・上記駆動スクリュー形状の上記円弧の中心点と上記従動スクリュー形状の上記対応する円弧の中心点との間の距離は、上記中心線距離に対応し、
・上記駆動スクリュー形状の上記円弧の中心点と上記従動スクリュー形状の上記対応する円弧の中心点との間の接続線は、上記駆動スクリュー形状の回転点と上記従動スクリュー形状の回転点との間の接続線と平行であり、
・上記駆動スクリュー形状の上記円弧の中心点が上記従動スクリュー形状の上記対応する円弧の中心点と同じであるために移動しなければならない方向は、上記駆動スクリュー形状の上記回転点が上記従動スクリュー形状の上記回転点と同じであるために移動しなければならない方向と同じである。
・残留スチレン、ことによるとエチルベンゼン、トルエン、キシレン、ブタノン、または他の溶媒を有するポリスチレン
・残留スチレン、残留アクリロニトリル、ことによるとエチルベンゼン、トルエン、キシレン、ブタノン、または他の溶媒を有するスチレンおよびアクリロニトリルコポリマー
・線形の低密度または高密度のポリエチレン、ヘキサン、工業用ヘキサン、プロパン、イソブタン、およびブテン−1、ヘキセン−1、4−メチルペンテン−1、オクテン−1のようなモノマーなどの溶媒を有する分岐ポリエチレン(懸濁液を含むプロセスは、CXプロセス、三井化学(ヘキサン)、ホスタレン(Hostalen(登録商標))プロセスバゼル(Basell)(ヘキサン)、シェブロンフィリップス米国(Chevron Philips USA)(イソブタン)、ボースター(Borstar(登録商標))プロセス、ボレアリス(Borealis)(プロパン)ベルギー、および溶媒プロセスでヘキサンを使用するDSMである)。この関係の詳細は、[6](各種ポリエチレン生産技術の比較分析、化学及び石油エンジニアリング44巻(Chem.&Petroleum Eng.vol.44)、nos.7−8,2008)に記載されている。
・溶媒を有するポリカーボネート、例えばクロロベンゼンおよびメチレンクロライド
・メタクリル酸メチルを有するモノマー、すなわち、ポリメタクリル酸メチル
がある。
・ポリマーが最終反応後に粉末状で得られるポリプロピレン
・ガス相またはスラリープロセスからの高濃度ポリエチレン
・沈降および任意の乾燥後の、例えばアクリロニトリル−ブタジエン−スチレンのようなエマルジョンポリマー
毎時6750gの65%ポリカーボネート溶液が図6の脱気押出機に供給される。フラッシング前の溶液の温度は230℃である。全ゾーンは、従来技術のスクリュー要素を有する。ゾーンAからゾーンLは、2条スクリュー要素を有し、ゾーンMは、3条スクリュー要素を有する。ポリカーボネートの相対粘度は、1.295である。押出機の回転率は、毎分350回転である。入口(ゾーンA)の圧力は、1.4バール(絶対圧)であり、ゾーンC,E,G,JおよびLの圧力は、1バール(絶対圧)から5ミリバール(絶対圧)まで、段階的に下げられる。ゾーンKでは、共沸剤として毎時15キログラムの窒素が加えられ、分散される。
毎時6750gの65%ポリカーボネート溶液が図6の脱気押出機に供給される。フラッシング前の溶液の温度は230℃である。ゾーンA,B,C,D,E,F,GおよびMは、従来技術のスクリュー要素を有する。ゾーンJ,KおよびLは、本発明に係るスクリュー要素を有する。ポリカーボネートの相対粘度は、1.295である。押出機の回転率は、毎分350回転である。入口(ゾーンA)の圧力は、1.4バール(絶対圧)であり、ゾーンC,E,G,JおよびLの圧力は、1バール(絶対圧)から5ミリバール(絶対圧)まで、段階的に下げられる。ゾーンKでは、共沸剤として毎時15キログラムの窒素が加えられ、分散される。
毎時7500gの65%ポリカーボネート溶液が図7の脱気押出機に供給される。上記溶液は、押出機の入口前の多管式熱交換器1によって予熱される。全ゾーンは、従来技術のスクリュー要素を有する。ゾーンAからゾーンLは、2条スクリュー要素を有し、ゾーンMは、3条スクリュー要素を有する。ポリカーボネートの相対粘度は、1.295である。押出機の回転率は、毎分350回転である。入口(ゾーンA)の圧力は、1.4バール(絶対圧)であり、ゾーンC,E,G,JおよびLの圧力は、1バール(絶対圧)から5ミリバール(絶対圧)まで、段階的に下げられる。ゾーンKでは、共沸剤として毎時15キログラムの窒素が加えられ、分散される。
毎時7500gの65%ポリカーボネート溶液が図6の脱気押出機に供給される。フラッシング前の溶液の温度は230℃である。ゾーンA,B,C,D,E,F,GおよびMは、従来技術のスクリュー要素を有する。ゾーンJ,KおよびLは、本発明に係るスクリュー要素を有する。ポリカーボネートの相対粘度は、1.295である。押出機の回転率は、毎分350回転である。入口(ゾーンA)の圧力は、1.4バール(絶対圧)であり、ゾーンC,E,G,JおよびLの圧力は、1バール(絶対圧)から5ミリバール(絶対圧)まで、段階的に下げられる。ゾーンKでは、共沸剤として毎時15キログラムの窒素が加えられ、分散される。
Claims (17)
- 請求項1に記載のプロセスにおいて、
いずれの場合にも、駆動および従動のスクリュー形状のスクリュー要素の形状は、0以上A以下の大きさの半径を有する6×Z個以上の円弧からなり、
上記円弧は、端点で互いに接線方向に結合することを特徴とするプロセス。 - 請求項2に記載のプロセスにおいて、
いずれの場合にも、上記駆動および従動のスクリュー形状の対応する円弧として知られているものの一組の上記スクリュー要素は、
対応する円弧の上記角度が同じ大きさであり、
対応する円弧の上記半径の合計が上記中心線距離と等しく、
上記駆動スクリュー形状の上記円弧の中心点と上記円弧の端点との間の接続線の各1つが、上記従動スクリュー形状の上記対応する円弧の中心点と上記円弧の端点との間の接続線の各1つに対して平行に走り、
上記円弧の上記中心点から始まり、上記駆動スクリュー形状の上記円弧の端点がある方向は、いずれの場合にも、上記従動スクリュー形状の上記円弧の中心点から始まり、上記従動スクリュー形状の上記対応する円弧の端点がある方向に対して逆向きであり、
上記駆動スクリュー形状の上記円弧の中心点と上記従動スクリュー形状の上記対応する円弧の中心点との間の距離は、上記中心線距離に対応し、
上記駆動スクリュー形状の上記円弧の中心点と上記従動スクリュー形状の上記対応する円弧の中心点との間の接続線は、上記駆動スクリュー形状の回転点と上記従動スクリュー形状の回転点との間の接続線と平行であり、
上記駆動スクリュー形状の上記円弧の中心点が上記従動スクリュー形状の上記対応する円弧の中心点と同じであるために移動しなければならない方向は、上記駆動スクリュー形状の上記回転点が上記従動スクリュー形状の上記回転点と同じであるために移動しなければならない方向と同じであることを特徴とするプロセス。 - 請求項1から3のいずれか1つに記載のプロセスにおいて、
上記スクリュー要素の形状の少なくとも1つの先端円弧に、半径0を有する次の円弧があることを特徴とするプロセス。 - 請求項1から4のいずれか1つに記載のプロセスにおいて、
上記スクリュー要素の形状の少なくとも1つの先端円弧に、半径が0より大きく、上記スクリュー直径の0.1倍より小さい次の円弧があることを特徴とするプロセス。 - 請求項1から5のいずれか1つに記載のプロセスにおいて、
上記スクリュー要素の先端円弧および溝円弧は、形状の外周に交互にあることを特徴とするプロセス。 - 請求項1から6のいずれか1つに記載のプロセスにおいて、
上記スクリュー要素は、上記スクリュー要素の上記条数に対応する幾つかの対称軸を有することを特徴とするプロセス。 - 請求項1から7のいずれか1つに記載のプロセスにおいて、
上記スクリュー要素は、点対称を有するが、鏡面対称を有しないことを特徴とするプロセス。 - 請求項1から8のいずれか1つに記載のプロセスにおいて、
上記スクリュー要素は、運搬要素として構成されていることを特徴とするプロセス。 - 請求項1から9のいずれか1つに記載のプロセスにおいて、
上記スクリュー要素は、脱気または運搬ゾーンで使用されることを特徴とするプロセス。 - 請求項1から10のいずれか1つに記載のプロセスにおいて、
上記スクリュー形状の上記直径に対して、0.1から0.001までの範囲にあるクリアランスは、スクリュー要素とバレルとの間および/または隣接するスクリュー要素の間にあることを特徴とするプロセス。 - 請求項1から11のいずれか1つに記載のプロセスにおいて、
上記プラスチック組成物は、熱可塑性プラスチックまたはエラストマであることを特徴とするプロセス。 - 請求項12に記載のプロセスにおいて、
使用される上記熱可塑性プラスチックは、ポリカーボネート、ポリアミド、ポリエステル、特にポリブチレンテレフタレートおよびポリエチレンテレフタレート、ポリ乳酸、ポリエーテル、熱可塑性ポリウレタン、ポリアセタール、フッ化ポリマー、特にポリフッ化ビニリデン、ポリエーテルスルフォン、ポリオレフィン、特にポリエチレンおよびポリプロピレン、ポリイミド、ポリアクリレート、特にポリ(メチル)メタクリレート、ポリフェニレンオキシド、ポリフェニレンスルフィド、ポリエーテルケトン、ポリアリールエーテルケトン、スチレンポリマー、特にポリスチレン、スチレンコポリマー、特にスチレン−アクリロニトリルコポリマー、アクリロニトリル−ブタジエン−スチレンブロックコポリマー、または上記熱可塑性プラスチックのうちの少なくとも2つの混合物であることを特徴とするプロセス。 - 請求項13に記載のプロセスにおいて、
ポリカーボネートまたは他のポリマーを有するポリカーボネートの混合物が、上記熱可塑性プラスチックとして使用されることを特徴とするプロセス。 - 請求項14に記載のプロセスにおいて、
上記ポリカーボネートは、相境界法または溶融エステル交換法によって製造されたことを特徴とするプロセス。 - 請求項12に記載のプロセスにおいて、
使用される上記エラストマは、スチレン‐ブタジエンゴム、天然ゴム、ブタジエンゴム、イソプレンゴム、エチレン−プロピレン−ジエンゴム、エチレン−プロピレンゴム、ブタジエン−アクリロニトリルゴム、水素化ニトリルゴム、ブチルゴム、ハロブチルゴム、クロロプレンゴム、エチレン−酢酸ビニルゴム、ポリウレタンゴム、熱可塑性プラスチックポリウレタン、グタペルカ、アクリレートゴム、フッ素ゴム、シリコーンゴム、スルフィドゴム、クロロスルホニル−ポリエチレンゴム、または上記エラストマのうちの少なくとも2つの組合せであることを特徴とするプロセス。 - 請求項1から16のいずれか1つに記載のプロセスにおいて、
フィラーか、補強剤か、ポリマー添加物か、有機または無機の顔料か、これらの混合物が、上記ポリマーに混合されることを特徴とするプロセス。
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- 2008-06-20 DE DE102008029305A patent/DE102008029305A1/de not_active Withdrawn
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2009
- 2009-05-30 JP JP2011513903A patent/JP5640000B2/ja active Active
- 2009-05-30 CN CN200980123347.2A patent/CN102066067B/zh active Active
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- 2009-05-30 RU RU2011101757/05A patent/RU2513427C9/ru not_active IP Right Cessation
- 2009-05-30 KR KR1020107028461A patent/KR101614176B1/ko active IP Right Grant
- 2009-05-30 SG SG2013047279A patent/SG191688A1/en unknown
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- 2009-06-09 RU RU2011101756/05A patent/RU2522624C9/ru not_active IP Right Cessation
- 2009-06-09 BR BRPI0914295A patent/BRPI0914295A2/pt not_active IP Right Cessation
- 2009-06-09 WO PCT/EP2009/004121 patent/WO2009152973A1/de active Application Filing
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- 2009-06-09 CN CN200980123296.3A patent/CN102066066B/zh active Active
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Cited By (3)
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JP2013522088A (ja) * | 2010-03-24 | 2013-06-13 | ブラハ、ヨーゼフ | 押出機 |
JP2017519667A (ja) * | 2014-07-11 | 2017-07-20 | コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag | 改善された分散効果を有する混合要素 |
JP2017524568A (ja) * | 2014-07-11 | 2017-08-31 | コベストロ、ドイチュラント、アクチエンゲゼルシャフトCovestro Deutschland Ag | 改善された分散効果を有する混合要素 |
Also Published As
Publication number | Publication date |
---|---|
TWI492834B (zh) | 2015-07-21 |
KR101614176B1 (ko) | 2016-04-20 |
SG191688A1 (en) | 2013-07-31 |
RU2513427C2 (ru) | 2014-04-20 |
RU2011101756A (ru) | 2012-07-27 |
EP2291270B1 (de) | 2013-01-30 |
CN102066066A (zh) | 2011-05-18 |
ES2403287T3 (es) | 2013-05-17 |
RU2522624C9 (ru) | 2015-02-20 |
RU2522624C2 (ru) | 2014-07-20 |
US20110233818A1 (en) | 2011-09-29 |
WO2009152973A1 (de) | 2009-12-23 |
CN102066066B (zh) | 2014-08-27 |
JP2011524281A (ja) | 2011-09-01 |
KR20110019747A (ko) | 2011-02-28 |
RU2011101757A (ru) | 2012-07-27 |
TW201016440A (en) | 2010-05-01 |
JP5646467B2 (ja) | 2014-12-24 |
EP2291270A1 (de) | 2011-03-09 |
ES2401333T3 (es) | 2013-04-18 |
US8979355B2 (en) | 2015-03-17 |
BRPI0914295A2 (pt) | 2015-11-03 |
RU2513427C9 (ru) | 2014-09-20 |
US9944008B2 (en) | 2018-04-17 |
CN102066067A (zh) | 2011-05-18 |
CA2728440A1 (en) | 2009-12-23 |
US20110141843A1 (en) | 2011-06-16 |
CN102066067B (zh) | 2015-04-22 |
JP5640000B2 (ja) | 2014-12-10 |
DE102008029305A1 (de) | 2009-12-24 |
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