JP6814749B2 - 低ミクロゲル表面保護フィルム - Google Patents
低ミクロゲル表面保護フィルム Download PDFInfo
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- JP6814749B2 JP6814749B2 JP2017562622A JP2017562622A JP6814749B2 JP 6814749 B2 JP6814749 B2 JP 6814749B2 JP 2017562622 A JP2017562622 A JP 2017562622A JP 2017562622 A JP2017562622 A JP 2017562622A JP 6814749 B2 JP6814749 B2 JP 6814749B2
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- resin material
- film
- polymer
- kpa
- shear stress
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
- B29B13/022—Melting the material to be shaped
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- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
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- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- Physics & Mathematics (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
本出願は、2015年6月5日に出願された米国仮特許出願第62/171,473号の優先権を主張し、その開示全体は参照により本明細書に組み込まれる。
表面保護フィルムについての厳しいミクロゲル含有物および表面トポグラフィー要件の1つの影響は、標準検査技術が十分でない場合があることである。フィルム表面に許容されない突起を生じる可能性のあるミクロゲルのサイズは非常に小さいため、通常の方法では検出できない場合がある。本発明の方法を使用して製造された微細化樹脂材料および表面保護フィルムを評価するために、新しい検査技術が必要とされた。以下の段落は、以下の実施例において記載されるデータを提供するために使用した検査方法について記載する。
実施例1
ベースラインとして、多層PEフィルムを、図3に示したものと同様の従来のせん断応力押出ラインを使用して形成した。多層は、コア層、接着層、および剥離層を含んだ。コア層は低密度ポリエチレン(LDPE)99.992%およびIrganox1010 0.008%から形成した。接着層は、ブテンコポリマーポリエチレンプラストマー75%、高密度ポリエチレン(HDPE)15%およびLDPE 10%から形成した。剥離層は、LDPE 85%およびHDPE 15%から形成した。各層の構成成分を事前混合し、3つの混合物を3台の一軸押出機に別個に供給した。各押出機において、ポリマー材料を約66kPaの推定最大せん断応力に供し、最終5ミクロンの溶融フィルターを含む複数のろ過段階を通した。ろ過された溶融物を、フィルムダイを通して押出し、なめらかなキャストロール上で単一の三層フィルムにキャストした。次いで、冷却したフィルムを巻き取り機に取った。フィルムのサンプルを取り、上で記載した技術を使用して検査して、ミクロゲルサイズおよび計数情報を決定した。
微細化した多層PEフィルムをM200と同様の高せん断応力方法を使用して形成した。多層フィルムは、コア層、接着層、および剥離層を含んだ。コアおよび剥離層はいずれもLDPE 59.4%、HDPE 40%、Irganox(登録商標)1076 0.48%およびIrgafos(登録商標)168 0.12%から形成した。接着層はブテンコポリマーポリエチレンプラストマー75%、HDPE 15%、LDPE 9.56%、Irganox(登録商標)1076 0.32%およびIrgafos(登録商標)168 0.12%から形成した。
別の微細化多層PEフィルムを、M200に同様の高せん断応力方法を使用して形成した。この多層フィルムはコア層、接着層、および剥離層を含んだ。コアおよび剥離層はいずれもLDPE 59.85%、HDPE 40%、Irganox(登録商標)1076 0.06%およびSandostab P−EPQ 0.09%から形成した。接着層はブテンコポリマーポリエチレンプラストマー54.85%、HDPE 30%、エチレンオクテンエラストマー15%、Irganox(登録商標)1076 0.09%およびSandostab P−EPQ 0.09%から形成した。
Claims (10)
- ポリマー樹脂材料を微細化する方法であって、
前記樹脂材料を溶融し、250kPa〜400kPaの範囲のせん断応力に供して、微細化樹脂材料を形成するステップを含む方法。 - 前記ポリマー樹脂材料が、主に1種または複数のポリオレフィンからなる、請求項1に記載の方法。
- 前記ポリマー樹脂材料が、主にポリエチレンからなる、請求項1に記載の方法。
- 前記ポリマー樹脂材料を1種または複数の酸化防止剤と混合するステップをさらに含む、請求項1に記載の方法。
- 前記ポリマー樹脂材料を300kPa〜375kPaの範囲のせん断応力に供して、前記微細化樹脂材料を形成する、請求項1に記載の方法。
- 前記微細化樹脂材料を押出および固化するステップをさらに含む、請求項1に記載の方法。
- 前記ポリマー樹脂材料が、重量による少なくとも大部分がポリエチレンで構成され、
方法が、
前記ポリマー樹脂材料を1種または複数の酸化防止剤と混合するステップと、
前記微細化樹脂材料を押出および固化するステップと
をさらに含む、請求項1に記載の方法。 - ポリマーフィルムを形成する方法であって、
主にポリエチレンからなるポリマー樹脂材料を用意するステップと、
前記ポリマー樹脂材料を1種または複数の酸化防止剤と混合して、樹脂材料混合物を形成するステップと、
前記樹脂材料混合物を溶融し、250kPa〜400kPaの範囲のせん断応力に供して、微細化樹脂材料を形成するステップと、
前記微細化樹脂材料を押出して、ポリマーフィルムを形成するステップと
を含む、方法。 - 前記微細化樹脂材料を押出してポリマーフィルムを形成するステップの動作の前に、前記微細化樹脂材料を押出および固化するステップと、
前記押出および固化された微細化樹脂材料を溶融し、70kPa未満のせん断応力に供するステップと
をさらに含む、請求項8に記載の方法。 - 第1の外側フィルム表面を画定する剥離層と、
前記第1の外側フィルム表面の反対側の第2の外側フィルム表面を画定する接着層と
を含み、
前記剥離層および前記接着層のうちの少なくとも1つが、本質的にポリエチレンからなり、かつ100ミクロンを超える最大寸法を有するミクロゲルを実質的に含まず、
前記接着層が、55重量%〜75重量%のブテンコポリマーポリエチレンおよび15重量%〜30重量%の高密度ポリエチレンを含む、
多層熱可塑性ポリマーフィルム。
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| US201562171473P | 2015-06-05 | 2015-06-05 | |
| US62/171,473 | 2015-06-05 | ||
| PCT/US2016/035770 WO2016196965A1 (en) | 2015-06-05 | 2016-06-03 | Low microgel surface protection film |
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| EP (1) | EP3302859A4 (ja) |
| JP (1) | JP6814749B2 (ja) |
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| CN (1) | CN107848048B (ja) |
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| US2935502A (en) * | 1958-02-05 | 1960-05-03 | Union Carbide Corp | Process for the high temperature, high pressure shear degradation of solid polyethylene |
| BE626361A (ja) * | 1961-12-26 | 1900-01-01 | ||
| FI922879A7 (fi) * | 1991-06-21 | 1992-12-22 | Himont Inc | Etenpolymer med hoeg smaelthaollfasthet, foerfarande foer dess framstaellning och dess anvaendning |
| US5320798A (en) * | 1993-02-17 | 1994-06-14 | Exxon Chemical Patents, Inc. | Method for processing polyolefins at high shear rates |
| US5525679A (en) * | 1994-07-25 | 1996-06-11 | The Dow Chemical Company | Chlorinated and chlorosulfonated elastic substantially linear olefin polymers |
| US5872205A (en) * | 1995-08-30 | 1999-02-16 | Balke; Stephen Thomas | Polymer segregation process |
| CA2229273A1 (en) * | 1998-02-10 | 1999-08-10 | Balke, Steven T. | Polymer segregation process |
| JP2001301009A (ja) * | 2000-04-20 | 2001-10-30 | Sekisui Chem Co Ltd | 合成樹脂フィルムの製造方法 |
| TW200504093A (en) * | 2003-05-12 | 2005-02-01 | Dow Global Technologies Inc | Polymer composition and process to manufacture high molecular weight-high density polyethylene and film therefrom |
| US20050048303A1 (en) * | 2003-08-29 | 2005-03-03 | Henderson Kevin O. | Multilayer films, adhesive constructions, and articles using the same |
| US6878454B1 (en) * | 2003-12-05 | 2005-04-12 | Univation Technologies, Llc | Polyethylene films |
| WO2006062504A1 (en) * | 2004-12-06 | 2006-06-15 | Avery Dennison Corporation | Multilayer films, adhesive constructions, and articles using the same |
| PL1712574T3 (pl) * | 2005-04-12 | 2008-08-29 | Borealis Tech Oy | Folia polietylenowa o ulepszonych właściwościach przetwórczych i mechanicznych |
| US20070045893A1 (en) * | 2005-08-26 | 2007-03-01 | Himanshu Asthana | Multilayer thermoplastic films and methods of making |
| US7393916B2 (en) * | 2005-11-01 | 2008-07-01 | Univation Technologies, Llc | Method of reducing gels in polyolefins |
| JP5104132B2 (ja) * | 2007-09-03 | 2012-12-19 | 東ソー株式会社 | 多層積層体 |
| KR101614820B1 (ko) * | 2008-02-05 | 2016-04-22 | 듀폰-미츠이 폴리케미칼 가부시키가이샤 | 점착성 수지 조성물 및 점착 필름 또는 시트 |
| US8957158B2 (en) * | 2008-09-25 | 2015-02-17 | Basell Polyolefine Gmbh | Impact resistant LLDPE composition and films made thereof |
| JP5729033B2 (ja) * | 2011-03-15 | 2015-06-03 | 凸版印刷株式会社 | 薄膜フィルムの製造方法 |
| JP5883584B2 (ja) * | 2011-06-17 | 2016-03-15 | 日東電工株式会社 | 粘着シート |
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| JP2018519376A (ja) | 2018-07-19 |
| TW201716201A (zh) | 2017-05-16 |
| US20160355650A1 (en) | 2016-12-08 |
| BR112017026115A8 (pt) | 2022-12-27 |
| US20200002489A1 (en) | 2020-01-02 |
| CN107848048B (zh) | 2020-11-13 |
| CN107848048A (zh) | 2018-03-27 |
| TWI611894B (zh) | 2018-01-21 |
| EP3302859A4 (en) | 2019-02-13 |
| KR20180014155A (ko) | 2018-02-07 |
| BR112017026115A2 (pt) | 2018-08-14 |
| IL256023A (en) | 2018-01-31 |
| WO2016196965A1 (en) | 2016-12-08 |
| EP3302859A1 (en) | 2018-04-11 |
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