JPWO2016051612A1 - 真空成形用シート用前駆体、真空成形用シートおよびその製造方法、ならびに成形品の製造方法 - Google Patents
真空成形用シート用前駆体、真空成形用シートおよびその製造方法、ならびに成形品の製造方法 Download PDFInfo
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- JPWO2016051612A1 JPWO2016051612A1 JP2016551469A JP2016551469A JPWO2016051612A1 JP WO2016051612 A1 JPWO2016051612 A1 JP WO2016051612A1 JP 2016551469 A JP2016551469 A JP 2016551469A JP 2016551469 A JP2016551469 A JP 2016551469A JP WO2016051612 A1 JPWO2016051612 A1 JP WO2016051612A1
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Images
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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Abstract
Description
表1に記載したようなメルトマスフローレイト(MFR)の高密度ポリエステル樹脂と、平均粒子径(d50)が2.2μmで、粒子径45μm以上の粒子を含有しない炭酸カルシウム粉末とを、質量比が20:80となるように調節し、さらにマグネシウムステアレートを両原料に対し1、3、5質量%となるように配合した。上記混合物を、Tダイを備えた小型二軸混練押出成形機(テクノベル製)により設定温度220℃で混練し、直接成形してシート(平均厚さ200μm)を作成した。
メルトマスフローレイトが0.8g/10分の高密度ポリエチレン樹脂と、実施例1で用いた炭酸カルシウム粉末とを表2に示す所定の質量比となるように調節するとともに、前記両原料総量100質量部に対し、マグネシウムステアレートを3質量部となるように配合する。上記原料について、実施例1と同様にして、直接法成形を行った。ダイス出口から成形シートを引取ロール(90℃)に引き取り後、直ちに巻取ロール(30℃)に巻き取り、その際の引取ロールおとよび巻取ロールの回転速度をそれぞれ1.75m/minに設定した。得られた真空成形用シートの平均厚さは、200μmであった。
高密度ポリエチレン樹脂と炭酸カルシウム粉末とを、表2の配合比で混合するほかは、実施例2,3,4と同様にしてシートを成形し、平均厚さ200μmの真空成形用シートを得た。
上で得た真空成形用シートから、シート製造時の搬送方向(MD方向)、およびそれに直交する方向(TD方向)を長辺とする、幅15mmの短冊状の試験片を切り出し、1000Nのロードセルを取り付けた引張試験機((株)A&D製)を用い、120℃において、引張速度500mm/分の条件で引張試験を行い、フィルム破断時における強度および伸張率を測定した。
本明細書において、メルトマスフローレイトの値は、JIS K7210:1999「プラスチック−熱可塑性プラスチックのメルトマスフローレート(MFR)」(但し、試験温度190℃)により測定される値を意味する。
高密度ポリエチレン樹脂(メルトマスフローレイト=0.8g/10分)と平均粒子径(d=50)が2.2μmで、粒子径45μm以上の粒子を含有しない炭酸カルシウム粉末を、質量比45:55となるように調節し、さらにマグネシウムステアレートを両原料に対し3質量%となるように配合して、Tダイを備え付けた同方向回転式二軸押出成形機を用いて混合し混練を行い、直接成形して厚みが400μmの真空成形用シートを作成した。
実施例4と同条件で作成した厚さ400μmの真空成形用シートを実施例4と同じ真空成形機により同一条件で、深さ73mmのテスト用金型を用いて成形した。成形物は該金型を十分に再現しており、結果は良好であった。
12 固形物体
Claims (12)
- 熱可塑性樹脂、無機物質粉末および内部滑剤を含有し、前記熱可塑性樹脂と前記無機物質粉末とが、質量比で55:45〜30:70の範囲で含まれる、真空成形用シート。
- シート製造時のシートの搬送方向と直交する方向(TD方向)および搬送方向(MD方向)において、JIS K7127−1999に準拠して測定された120℃における伸長率がいずれも20%以上である、請求項1に記載の真空成形用シート。
- 前記内部滑剤が、脂肪酸、金属石鹸、脂肪族アミド、およびアルコールの脂肪族エステルからなる群から選択される一種以上を含む、請求項1または2に記載の真空成形用シート。
- 前記内部滑剤が、前記熱可塑性樹脂および前記無機物質粉末の総量100質量部に対し、0.5〜5.0質量部含有される、請求項1〜3いずれか1項に記載の真空成形用シート。
- 熱可塑性樹脂、無機物質粉末および内部滑剤を含有し、前記熱可塑性樹脂と前記無機物質粉末とが、質量比で55:45〜30:70の範囲で含まれる混練物からなる、真空成形用シート用前駆体。
- 熱可塑性樹脂、無機物質粉末、および内部滑剤を含有し、前記熱可塑性樹脂と前記無機物質粉末とが質量比で55:45〜30:70の範囲で含まれる混練物をシート状に成形して成形シートとする成形工程を含む、真空成形用シートの製造方法。
- 前記混練物が、請求項5に記載の真空成形用シート用前駆体を含む、請求項6に記載の真空成形用シートの製造方法。
- 前記成形工程が、二軸押出成形機を用いて混練された前記混練物を押出成形する工程を含む、請求項6に記載の真空成形用シートの製造方法。
- 前記成形シートを搬送方向に移動させる途中で、前記成形シートの表面に固体物体を押し付け、その当接部分において前記成形シートを折り曲げた状態にすることにより、前記成形シートの内部に作用する応力を発生させる曲げ処理工程を有する、請求項6〜8いずれか1項に記載の真空成形用シートの製造方法。
- 前記混練物が、前記熱可塑性樹脂および前記無機物質粉末の総量100質量部に対し、前記内部滑剤を0.5〜5.0質量部含有する、請求項6〜9いずれか1項に記載の真空成形用シートの製造方法。
- 請求項1〜4いずれか1項に記載の真空成形用シートに、真空成形加工により形状を賦形する、成形品の製造方法。
- 前記熱可塑性樹脂に対する前記無機物質粉末の含有量(質量比)が、50/50以上である請求項11に記載の成形品の製造方法。
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2014
- 2014-12-05 KR KR1020177009452A patent/KR20170061138A/ko not_active Application Discontinuation
- 2014-12-05 US US15/515,429 patent/US20170217078A1/en not_active Abandoned
- 2014-12-05 WO PCT/JP2014/082308 patent/WO2016051612A1/ja active Application Filing
- 2014-12-05 EP EP14902939.9A patent/EP3202551A4/en not_active Withdrawn
- 2014-12-05 CN CN201480082127.0A patent/CN106715082B/zh not_active Expired - Fee Related
- 2014-12-05 BR BR112017006105A patent/BR112017006105A2/pt active Search and Examination
- 2014-12-05 RU RU2017112992A patent/RU2674949C2/ru not_active IP Right Cessation
- 2014-12-05 JP JP2016551469A patent/JP6675530B2/ja active Active
- 2014-12-05 MA MA40139A patent/MA40139B1/fr unknown
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2017
- 2017-03-27 PH PH12017500573A patent/PH12017500573A1/en unknown
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Also Published As
Publication number | Publication date |
---|---|
EP3202551A1 (en) | 2017-08-09 |
WO2016051612A1 (ja) | 2016-04-07 |
BR112017006105A2 (pt) | 2017-12-19 |
RU2017112992A3 (ja) | 2018-11-08 |
CN106715082B (zh) | 2020-05-08 |
CN106715082A (zh) | 2017-05-24 |
EP3202551A4 (en) | 2018-06-13 |
JP6675530B2 (ja) | 2020-04-01 |
MA40139A1 (fr) | 2017-12-29 |
US20170217078A1 (en) | 2017-08-03 |
KR20170061138A (ko) | 2017-06-02 |
RU2674949C2 (ru) | 2018-12-13 |
RU2017112992A (ru) | 2018-11-08 |
PH12017500573A1 (en) | 2017-08-30 |
MA40139B1 (fr) | 2018-05-31 |
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