JP5258953B2 - 充填材配合シリコーン組成物のコンパウンディング - Google Patents
充填材配合シリコーン組成物のコンパウンディング Download PDFInfo
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- JP5258953B2 JP5258953B2 JP2011266726A JP2011266726A JP5258953B2 JP 5258953 B2 JP5258953 B2 JP 5258953B2 JP 2011266726 A JP2011266726 A JP 2011266726A JP 2011266726 A JP2011266726 A JP 2011266726A JP 5258953 B2 JP5258953 B2 JP 5258953B2
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- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
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- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
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Description
図1に、本発明の装置及びプロセス10を示す。図1で、D4処理ヒュームドシリカはホッパー12に収容され、14で計量して同方向回転噛合型二軸押出機(L/D=42)16に供給した。14(バレル1)で充填材を加え、加工流体18は20(バレル1)で加えた。この加工流体は、シラノール停止ポリジメチルシロキサン、ビニル停止ジメチルメチルビニルシロキサン及びヒドロキシ末端ポリジメチルメチルビニルシロキサンの組合せであった。シリコーンポリマー22、24は、2つの位置26、28(バレル8、9)で等しい割合で加えた。ヒュームドシリカに随伴した空気と余分な揮発分はベント30及び32(バレル11及び13)を介して除去した。
ベント32(バレル13)で減圧にして残留揮発分(水分、未重合モノマー及び溶媒)の除去を促進した以外は図1に示す手順を繰り返した。スクリューに一対のブリスターリング(バレル12)を用いてベント32(バレル13)を分離した。ベント32では、685〜736mmHg(27〜29インチHg)の減圧にしてシリコーンポリマー組成物の脱揮を実施した。
図2に本発明の別の実施形態を示す。図2に示すプロセスと装置40で、充填材−ポリマー濃縮物又は前処理シリカを用いることなくシリコーン組成物を調製した。図2で、原料ヒュームドシリカ45、HMDZ46及び脱イオン水47を、同方向回転噛合型二軸押出機54(L/D=42)の最初の位置で48、50、52(バレル1)にそれぞれ添加した。加工流体、処理剤、流動促進剤、及び充填材の二次処理用試薬56を58(バレル7)で導入し、等しい割合でビニルシリコーンポリマー60を62(バレル8及び9)で加えた。加工流体溶液は、シラノール停止ポリジメチルシロキサン1.21部、ビニル停止ジメチルメチルビニルシロキサン1.82部及びヒドロキシ末端ポリジメチルメチルビニルシロキサン0.12部を(ポンドで)混合することによって調製した。窒素64を充填材サイド−フィーダーホッパーの底部66及び68(バレル2)と70(バレル10)で添加して不活性雰囲気を作った。ヒュームドシリカに随伴した空気と残留揮発分は大気ベント72と真空ベント74を介して除去した(バレル11、13)。
図3に、図2のプロセスと装置に類似しているが、押出機82が図1及び2の14バレルのものとは違って10のバレルからなる(L/D=30)プロセスと装置を示す。
14 充填材添加口
16 同方向回転噛合型二軸押出機
18 加工流体
22、24 シリコーンポリマー
30、32 ベント
34 搬送セクション(高密度化ステージ)
36 混練セクション(コンパウンディングステージ)
38 脱揮セクション
42、44 シャフト
Claims (13)
- 熱加硫性シリコーンポリマーの連続的製造方法であって、
シリコーンポリマーの添加(26、28)前に第1の位置(34)で単一連続コンパウンディング装置(10)にヒュームドシリカを連続的に供給し、
ヒュームドシリカが単一連続コンパウンディング装置(10)を通って第2の位置(36)に進む間にヒュームドシリカを加工流体又は加工流体と処理剤の組合せとコンパウンディングし、
第2の位置(36)でシリコーンポリマーを単一連続コンパウンディング装置(10)に供給し、
ヒュームドシリカとシリコーンポリマーが第2の位置(36)から単一連続コンパウンディング装置(10)を通って進む間に単一連続コンパウンディング装置(10)によってヒュームドシリカをシリコーンポリマーとコンパウンディングすることを含んでなり、前記単一連続コンパウンディング装置(10)が同方向回転噛合型二軸押出機であり、前記加工流体が前記シリコーンポリマーと異なる、製造方法。 - シリコーンポリマーの添加前に第1の押出機で充填材を加工流体と混合し、
第1の位置の下流の位置に存在する別の押出機内で、前記第1の位置で混合した充填材と加工流体との混合物をシリコーンポリマーと混合することを含んでなり、前記加工流体が前記シリコーンポリマーと異なる、充填材配合シリコーン組成物のコンパウンディング方法。 - 加工特性の異なる2以上の押出機の組合せで当該方法を実施することからなり、充填材と加工流体を第1の押出機で混合し、後の押出機に強制供給する、請求項2記載の方法。
- 第1の同方向回転噛合型二軸押出機と第2の異なる押出機で当該方法を実施することからなる、請求項2記載の方法。
- 第1の同方向回転噛合型二軸押出機で当該方法を実施し、処理された充填材とシリコーンポリマーを第1の押出機からさらに加工するための第2の異方向回転非噛合型二軸押出機に排出することを含む、請求項2記載の方法。
- 第1の異方向回転噛合型二軸押出機で当該方法を実施し、処理された充填材とシリコーンポリマーを第1の押出機からさらに加工するための第2の異方向回転非噛合型二軸押出機に排出することを含む、請求項2記載の方法。
- 第1の単軸押出機で当該方法を実施し、処理された充填材とシリコーンポリマーを第1の押出機からさらに加工するための第2の同方向回転噛合型二軸押出機に排出することを含む、請求項2記載の方法。
- 第1の同方向回転噛合型二軸押出機で当該方法を実施し、処理された充填材とシリコーンポリマーを第1の押出機からさらに加工するための第2の単軸往復式押出機に排出することを含む、請求項2記載の方法。
- 第1の同方向回転噛合型二軸押出機で当該方法を実施し、処理された充填材とシリコーンポリマーを第1の押出機からさらに加工するための第2の同方向回転噛合型二軸押出機に排出することを含んでおり、第1の押出機が第2の押出機より大きいOD/ID比を有する、請求項2記載の方法。
- シラノール停止ポリジメチルシロキサン、ビニル停止ジメチル−メチルビニルシロキサン及びヒドロキシ末端ポリジメチル−メチルビニルシロキサンを含んでなる、シリコーンポリマー組成物製造のための加工流体。
- 0.49〜1.93重量部のシラノール停止ポリジメチルシロキサン、0.73〜2.91重量部のビニル停止ジメチル−メチルビニルシロキサン及び0.05〜0.19重量部のヒドロキシ末端ポリジメチル−メチルビニルシロキサンを含んでなる、請求項10記載の加工流体。
- 0.85〜1.57重量部のシラノール停止ポリジメチルシロキサン、1.27〜2.37重量部のビニル停止ジメチル−メチルビニルシロキサン及び0.08〜0.16重量部のヒドロキシ末端ポリジメチル−メチルビニルシロキサンを含んでなる、請求項10記載の加工流体。
- 1.09〜1.32重量部のシラノール停止ポリジメチルシロキサン、1.64〜2.0重量部のビニル停止ジメチル−メチルビニルシロキサン及び0.11〜0.13重量部のヒドロキシ末端ポリジメチル−メチルビニルシロキサンを含んでなる、請求項10記載の加工流体。
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US09/468,623 US6388001B1 (en) | 1999-12-21 | 1999-12-21 | Compounding filled silicone compositions |
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EP (1) | EP1242512B1 (ja) |
JP (2) | JP4921667B2 (ja) |
CN (2) | CN100595233C (ja) |
DE (1) | DE60033848T2 (ja) |
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1999
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US6388001B1 (en) | 2002-05-14 |
CN1733839A (zh) | 2006-02-15 |
EP1242512A2 (en) | 2002-09-25 |
TWI259193B (en) | 2006-08-01 |
US20020137838A1 (en) | 2002-09-26 |
CN1411485A (zh) | 2003-04-16 |
WO2001046299A2 (en) | 2001-06-28 |
CN1411485B (zh) | 2012-03-21 |
WO2001046299A3 (en) | 2002-01-17 |
CN100595233C (zh) | 2010-03-24 |
JP2012086572A (ja) | 2012-05-10 |
DE60033848T2 (de) | 2007-11-08 |
DE60033848D1 (de) | 2007-04-19 |
JP4921667B2 (ja) | 2012-04-25 |
EP1242512B1 (en) | 2007-03-07 |
JP2003517958A (ja) | 2003-06-03 |
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