JP2009143019A - 押出樹脂板の製造方法 - Google Patents
押出樹脂板の製造方法 Download PDFInfo
- Publication number
- JP2009143019A JP2009143019A JP2007320088A JP2007320088A JP2009143019A JP 2009143019 A JP2009143019 A JP 2009143019A JP 2007320088 A JP2007320088 A JP 2007320088A JP 2007320088 A JP2007320088 A JP 2007320088A JP 2009143019 A JP2009143019 A JP 2009143019A
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- Prior art keywords
- roll
- resin
- rolls
- extruded
- thermoplastic resin
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- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 3
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Abstract
【解決手段】ダイ3から押出される溶融熱可塑性樹脂4を、第1ロールと第2ロールとの間に挟み込み、前記第2ロールに巻き掛けた状態で、さらに第2ロールと第3ロールとの間に挟み込んで成形・冷却する、熱可塑性樹脂からなる押出樹脂板11の製造方法であって、前記第1ロールおよび第3ロールが、高剛性の金属ロール6a,6bであり、前記第2ロールが、外周部に金属製薄膜9を備えた金属弾性ロール7(弾性ロール)である。
【選択図】図2
Description
(1)ダイから押出される溶融熱可塑性樹脂を、第1ロールと第2ロールとの間に挟み込み、前記第2ロールに巻き掛けた状態で、さらに第2ロールと第3ロールとの間に挟み込んで成形・冷却する、熱可塑性樹脂からなる押出樹脂板の製造方法であって、前記第1ロールおよび第3ロールが、高剛性の金属ロールであり、前記第2ロールが、外周部に金属製薄膜を備えた弾性ロールであることを特徴とする押出樹脂板の製造方法。
(2)前記弾性ロールは、略円柱状の軸ロールと、この軸ロールの外周面を覆うように配置された円筒形の金属製薄膜と、前記軸ロールと金属製薄膜との間に封入された流体とを備えており、前記流体を温度制御することによって、前記弾性ロールを温度制御可能に構成した前記(1)記載の押出樹脂板の製造方法。
(3)前記第1〜第3ロールの表面温度(Tr)を、押出樹脂板を構成する熱可塑性樹脂の熱変形温度(Th)に対して、(Th−20℃)≦Tr≦(Th+20℃)の範囲内にする前記(1)または(2)記載の押出樹脂板の製造方法。
(4)押出樹脂板の厚さが2mm以下である前記(1)〜(3)のいずれかに記載の押出樹脂板の製造方法。
押出機2:スクリュー径35mm、一軸、ベント付き(日立造船(株)製)。
フィードブロック:2種2層分配(日立造船(株)製)。
ダイ3:Tダイ、リップ幅1500mm、リップ間隔1mm(日立造船(株)製)。
ロール:横型、面長1600mm、径300mmφの冷却ロール3本。
図2に示した構成をロール構成1とした。具体的には、第1〜第3ロールを以下のように構成した。
(第1,第3ロール)
表面状態を鏡面にしたステンレス鋼製のスパイラルロールを高剛性の金属ロール6a,6bとし、これを第1,第3ロールとした。
(第2ロール)
軸ロール8の外周面を覆うように金属製薄膜9を配置し、軸ロール8と金属製薄膜9との間に流体10を封入した金属弾性ロール7を第2ロールとした。軸ロール8、金属製薄膜9および流体10は、次の通りである。
軸ロール8:ステンレス鋼製
金属製薄膜9:厚さ2mmのステンレス鋼製の鏡面金属スリーブ
流体10:油であり、この油を温度制御することによって、金属弾性ロール7を温度制御可能にした。より具体的には、温度調節機のON−OFF制御により前記油を加熱、冷却して温度制御可能にし、軸ロール8と金属製薄膜9との間に循環させた。
なお、金属弾性ロール7と金属ロール6aとの接触長さL1、金属弾性ロール7と金属ロール6bとの接触長さL2は、いずれも4mmにした。
第1〜第3ロールを、いずれも高剛性の金属ロール(表面状態を鏡面にしたステンレス鋼製のスパイラルロール)とした。
高剛性の金属ロール6aを第2ロール、金属弾性ロール7を第1ロールにした以外は、前記ロール構成1と同様に構成した。すなわち、温度制御可能な金属弾性ロール7を第1ロール、高剛性の金属ロール6a,6bを第2,第3ロールとした。
樹脂1:芳香族ポリカーボネートのみの重合体(住友ダウ(株)製の「カリバー301−10」)。熱変形温度(Th)は140℃。
樹脂2:メタクリル酸メチル/アクリル酸メチル=98/2(重量比)の共重合体。熱変形温度(Th)は100℃。
樹脂3:メタクリル酸メチル/アクリル酸メチル=96/4(重量比)の共重合体70重量%に下記参考例で得たアクリル系多層弾性体を30重量%含有させたアクリル樹脂系組成物。熱変形温度(Th)は100℃。
(ゴム状重合体の製造)
特公昭55−27576号の実施例に記載の方法に準拠して、三層構造からなるアクリル系多層弾性体を製造した。具体的には、まず、内容積5Lのガラス製反応容器に、イオン交換水1700g、炭酸ナトリウム0.7g、過硫酸ナトリウム0.3gを仕込み、窒素気流下で撹拌後、ペレックスOT−P((株)花王製)4.46g、イオン交換水150g、メチルメタクリレート150g、アリルメタクリレート0.3gを仕込んだ後、75℃に昇温し150分間撹拌を続けた。
<押出樹脂板の作製>
表1に示す種類の樹脂を押出機1にて溶融混練し、フィードブロックおよびダイ3の順に供給した。そして、ダイ3から押出された溶融熱可塑性樹脂4を、表1に示すロール構成の第1〜第3ロール間に通して成形・冷却し、表1に示す厚さの押出樹脂板を得た。
樹脂層Aとして、表1に示す種類の樹脂を押出機1にて溶融混練し、フィードブロックに供給した。一方、樹脂層Bとして、表1に示す種類の樹脂を押出機2にて溶融混練し、フィードブロックに供給した。押出機1からフィードブロックに供給される樹脂層Aが主層となり、押出機2からフィードブロックに供給される樹脂層Bが表層(片面/上側)となるように、共押出成形を行った。
得られた各押出樹脂板(実施例1、2および比較例1〜3)について、第3ロールへの密着状態と、押出樹脂板の外観評価を行った。各評価方法を以下に示すと共に、その結果を表1に示す。
押出成形中に第3ロールへの熱可塑性樹脂の密着状態を目視で確認した。なお、判定基準は以下のものを用いた。
○:第3ロールに均一に密着していた
△:部分的に第3ロールから浮きあがっていた
×:第3ロールにほとんど密着していなかった
得られた押出樹脂板の状態を目視で確認した。なお、判定基準は以下のものを用いた。
○:両面とも平滑で問題なし
△:ほとんど平滑であるが、一部に凹みや模様あり
×:筋や凹みが確認される
3 ダイ
4 溶融熱可塑性樹脂
5 冷却ロール
6a,6b 金属ロール
7,15 金属弾性ロール
8,16 軸ロール
9,17 金属製薄膜
10 流体
11 押出樹脂板
Claims (4)
- ダイから押出される溶融熱可塑性樹脂を、第1ロールと第2ロールとの間に挟み込み、前記第2ロールに巻き掛けた状態で、さらに第2ロールと第3ロールとの間に挟み込んで成形・冷却する、熱可塑性樹脂からなる押出樹脂板の製造方法であって、
前記第1ロールおよび第3ロールが、高剛性の金属ロールであり、前記第2ロールが、外周部に金属製薄膜を備えた弾性ロールであることを特徴とする押出樹脂板の製造方法。 - 前記弾性ロールは、略円柱状の軸ロールと、この軸ロールの外周面を覆うように配置された円筒形の金属製薄膜と、前記軸ロールと金属製薄膜との間に封入された流体とを備えており、
前記流体を温度制御することによって、前記弾性ロールを温度制御可能に構成した請求項1記載の押出樹脂板の製造方法。 - 前記第1〜第3ロールの表面温度(Tr)を、押出樹脂板を構成する熱可塑性樹脂の熱変形温度(Th)に対して、(Th−20℃)≦Tr≦(Th+20℃)の範囲内にする請求項1または2記載の押出樹脂板の製造方法。
- 押出樹脂板の厚さが2mm以下である請求項1〜3のいずれかに記載の押出樹脂板の製造方法。
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JP2007320088A JP5123654B2 (ja) | 2007-12-11 | 2007-12-11 | 押出樹脂板の製造方法 |
CN2008101851087A CN101456251B (zh) | 2007-12-11 | 2008-12-09 | 生产挤出树脂板的方法 |
TW103125283A TWI483832B (zh) | 2007-12-11 | 2008-12-09 | 製造擠出樹脂板的方法 |
TW097147831A TW200946329A (en) | 2007-12-11 | 2008-12-09 | Method for producing extruded resin sheet |
DE102008061428A DE102008061428A1 (de) | 2007-12-11 | 2008-12-10 | Verfahren zur Herstellung einer extrudierten Harzfolie |
IT000922A ITTO20080922A1 (it) | 2007-12-11 | 2008-12-10 | Procedimento per la produzione di un foglio di resina estruso. |
US12/332,091 US20090179344A1 (en) | 2007-12-11 | 2008-12-10 | Method for producing extruded resin sheet |
KR1020080125700A KR101506038B1 (ko) | 2007-12-11 | 2008-12-11 | 압출 수지 시트의 제조 방법 |
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JP (1) | JP5123654B2 (ja) |
KR (1) | KR101506038B1 (ja) |
CN (1) | CN101456251B (ja) |
DE (1) | DE102008061428A1 (ja) |
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JP2010260236A (ja) * | 2009-05-01 | 2010-11-18 | Dainippon Printing Co Ltd | エンボス装置、バックアップロール、加工品の製造方法、および、バックアップロールの製造方法 |
KR101543823B1 (ko) * | 2010-10-29 | 2015-08-11 | 에스카보 시토 가부시키가이샤 | 압출 수지판의 제조 방법 |
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JP2012121271A (ja) * | 2010-12-09 | 2012-06-28 | Sumitomo Chemical Co Ltd | 積層押出樹脂板の製造方法 |
TW201424984A (zh) * | 2012-12-28 | 2014-07-01 | Chi Mei Corp | 光學板的成型裝置及光學板的成型方法 |
FR3001180B1 (fr) * | 2013-01-18 | 2015-07-10 | Batscap Sa | Dispositif de laminage, procede de laminage, film d'electrolyte ainsi obtenu et ensemble de stockage d'energie forme a partir d'au moins un film ainsi lamine |
JP6338864B2 (ja) * | 2014-01-17 | 2018-06-06 | 東洋鋼鈑株式会社 | 延伸フィルムの製造方法 |
CN107743423B (zh) * | 2015-06-12 | 2021-09-07 | 3M创新有限公司 | 使用可变形金属辊进行液体涂覆的方法和设备 |
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DE102021003028A1 (de) * | 2021-06-15 | 2022-12-15 | NOWOFOL Kunststoffprodukte GmbH & Co. Kommanditgesellschaft | Verfahren zur Herstellung einer Fluorpolymerfolie, verfahrensgemäß hergestellte Folie und Verwendung derselben |
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US20090179344A1 (en) | 2009-07-16 |
KR101506038B1 (ko) | 2015-03-25 |
DE102008061428A1 (de) | 2009-06-18 |
CN101456251A (zh) | 2009-06-17 |
TWI483832B (zh) | 2015-05-11 |
CN101456251B (zh) | 2013-03-27 |
JP5123654B2 (ja) | 2013-01-23 |
TW200946329A (en) | 2009-11-16 |
TW201441002A (zh) | 2014-11-01 |
ITTO20080922A1 (it) | 2009-06-12 |
KR20090061603A (ko) | 2009-06-16 |
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