JP2015186927A - 剥離面を備えた保護フィルム - Google Patents
剥離面を備えた保護フィルム Download PDFInfo
- Publication number
- JP2015186927A JP2015186927A JP2015143937A JP2015143937A JP2015186927A JP 2015186927 A JP2015186927 A JP 2015186927A JP 2015143937 A JP2015143937 A JP 2015143937A JP 2015143937 A JP2015143937 A JP 2015143937A JP 2015186927 A JP2015186927 A JP 2015186927A
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- JP
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- Prior art keywords
- film
- release
- layer
- adhesive layer
- masking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
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- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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Abstract
【解決手段】上記マスキングフィルムは、接着層と剥離層とを含み、該剥離層は複数の三次元突起部を有する剥離面を含み、該三次元突起部は、該剥離層の一体的な延出部分であり、該三次元突起部は、頂点を有する円錐形状の突起部を含み、該頂点は、該接着層から離れる方向で配向され、該突起部の該頂点の下の領域は、空隙を含み、該接着層は、該剥離層の該突起部に追随しない凝集性単層を形成し、該接着層は、ポリエチレン、メタロセンポリエチレン、メタロセンポリプロピレン、およびエチレンおよびプロピレンから誘導されたモノマー単位を含むメタロセン共重合体ならびにそれらの混合物からなる群より選択されるポリオレフィンを含む。
【選択図】なし
Description
本出願は、2008年6月27日に出願された米国仮特許出願第61/133,356号の出願日の利益を主張する。
本開示は、製造、保存、輸送または使用の間の、基材表面を保護するのに用いるフィルムに関する。本開示は、また、上記フィルムを作製する方法に関する。
1つの実施形態では、マスキングフィルムは、少なくとも1つの三次元剥離面を有する高分子フィルムウェブを含む。
例えば、本発明は、以下の項目を提供する:
(項目1)
接着層と、剥離層とを含み、該剥離層は複数の三次元突起部を有する剥離面を含む、フィルム。
(項目2)
上記三次元突起部は上記剥離層の一体的な延出部分である、項目1記載のフィルム。
(項目3)
上記突起部は真空形成された突起部である、項目2記載のフィルム。
(項目4)
上記突起部は油圧成形された突起部である、項目2記載のフィルム。
(項目5)
上記突起部は機械的に変形された突起部である、項目2記載のフィルム。
(項目6)
上記突起部は深エンボス突起部である、項目5記載のフィルム。
(項目7)
上記突起部は上記フィルムの長さに実質的に延在する隆線を含む、項目2記載のフィルム。
(項目8)
上記剥離層と上記接着層との間に配置された少なくとも1つの中間層をさらに含む、項目1記載のフィルム。
(項目9)
上記三次元突起部は不連続の高分子ビーズを含む、項目1記載のフィルム。
(項目10)
第1の剥離面と、第2の剥離面とを含み、該第1の剥離面および第2の剥離面のうちの少
なくとも1つは複数の三次元突起部を有する、フィルム。
(項目11)
上記三次元突起部は上記剥離層の一体的な延出部分である、項目10記載のフィルム。
(項目12)
上記突起部は、真空形成された突起部、油圧成形された突起部、および機械的に変形された突起部から選択される、項目11記載のフィルム。
(項目13)
上記突起部は上記フィルムの長さに実質的に延在する隆線を含む、項目11記載のフィルム。
(項目14)
多層フィルムを含む、項目10記載のフィルム。
(項目15)
上記三次元突起部は不連続の高分子ビーズを含む、項目10記載のフィルム。
(項目16)
上記第1の剥離面は三次元突起部を含み、上記第2の剥離面は艶消し面を含む、項目10記載のフィルム。
(項目17)
上記第1の剥離面および第2の剥離面の両方は三次元突起部を含む、項目10記載のフィルム。
(項目18)
基材表面を保護する方法であって、
該基材表面と密接に接触してフィルムを設置することを含み、
該フィルムは、剥離面を有する少なくとも1つの剥離層を含み、
該剥離面は複数の三次元突起部を有する、方法。
(項目19)
上記フィルムは、重ねられた基材において2つの隣接する基材表面間に位置する、項目18記載の方法。
(項目20)
上記フィルムは、
a)接着層および剥離層を有するフィルム、
b)接着層、剥離層および該剥離層と該接着層との間に介在する少なくとも1つのコア層を有するフィルム、
c)剥離層および剥離面に対向する艶消し面を有するフィルム、
d)第2の剥離層を有し、該第2の剥離層は複数の三次元突起部を有するフィルム、から選択される、項目18記載の方法。
次元剥離面を有する剥離層を含む。いくつかの実施形態では、マスキングフィルムは、接着層と、三次元剥離面を備えた剥離層とを含む。他の実施形態では、マスキングフィルムは、フィルムの両側に位置する2つの三次元剥離面を含む。マスキングフィルムは単層または多層を含んでいてもよい。接着層と剥離層との間、または2つの剥離層の間に中間層を介在していてもよい。
六角形または任意の他の所望の形状である断面を有していてもよい。
(エチレン−コ−n−アクリル酸ブチルから選択された少なくとも1つの重合体であってもよい。
む。接着層12は、基材16に接着をもたらすように調合されているが、基材16を破損することなく、また基材16にいかなる残留物も残すことなく、もはや必要でない場合に取り除かれるように調合されている。接着層12は、現在、当技術分野で公知であり、今後特有の表面を保護するために開発される任意の所望の調合物であり得る。また、当技術分野で公知のように、接着層は、非常に滑らかな表面で作製されて、基材表面との密接な接触を促進することが好ましい。
造および使用中に接着層の滑らかな面の潜在的破損を低減するか、またはフィルムの弾性率を改善するために調合してもよい。ある特定の実施形態では、マスキングフィルムは15,000psi(103.4MPa)より大きい弾性率を有するべきである。ある特定の実施形態では、マスキングフィルムの弾性率は、15,000psi(103.4MPa)より大きく350,000psi(2413.17MPa)未満であってもよい。ある特定の実施形態では、剥離層は240,000psi(1654.74MPA)(±15%)の弾性率を有するべきである。この範囲の弾性率は、マスキングフィルムの湿潤特性に影響することなく、接着層に対して保護をもたらすことが望ましい。
ルまたは溝を有する成形構造上に剥離層42および接着層44を同時押出し成形し、次いで、同時押出し成形物に真空を施して(上記で検討するように)、剥離層を形成する重合体を溝に引き込むことによって作製することができる。重合体が冷えると、フィルムは重合体が溝に引き込まれた位置に対応する隆線を形成する。接着層ができるだけ滑らかなままであるように、剥離層44の表面が溝に引き込まれないことを確実にするように注意しなければならない。フィルムを作製する他の方法も都合よく使用してもよい。
ル78の間に形成されたロール間隙でウェブ72とまとめられる。2つのウェブ72、76はロール間隙で積層され、次いで、ロール74から取り除かれて最終フィルム構造物80を製造する。所望により、当技術分野で公知であり、例えば、参照によって本明細書に援用される米国特許第4,995,930号で教示されるように、真空を適用して積層を支援してもよい。さらに、製造される特有の実施形態によって、ウェブ76は、開口部を備えているか、または開口部のない三次元フィルム、エンボスフィルム、深エンボスフィルム、接着層などであってもよい。
オノマーは、重合体構成要素の不連続の範囲のイオン相互作用により、独特の物理的特性を有する重合体である。ほとんどのアイオノマーは、少数であるがかなりの割合の構成モノマーがイオン群を有する重合体である。ある特定の実施形態では、アイオノマーはカリウムアイオノマーであってもよい。
表1の組成を有する一連のフィルムを調製した。
1つの滑らかな接着面および対向する剥離面を有する一連の単層ポリエチレンフィルムを作製した。滑らかなチルロール上に前の実施例で用いた低密度ポリエチレン/スリップ剤のブレンドをキャスティングすることによってフィルムを作製した。図8に見られるように、テクスチャード加工または彫刻エンボスロールでフィルムの反対側に圧力を加えた。テクスチャード加工エンボスロールはゴムから作製され、1.397ミクロン(55マイクロインチ)の粗さを有する表面テクスチャを有していた。彫刻エンボスロールもゴムから作製され、ダイヤモンド形状パターンで一連の深い彫刻溝を有していた。次いで、フィルムの各表面を、180°剥離試験で特別の開発接着強度試験方法を使用して接着についてテストした。結果を表3に記載する。
各側に剥離面を有する一連のポリエチレンフィルムを作製した。彫刻チルロール上に前の実施例で用いた低密度ポリエチレン/スリップ剤のブレンドをキャスティングすることによってフィルムを作製した。チルロールは、ダイヤモンドパターンの形状で一連の深い彫刻溝を含む彫刻面を有していた。図8に見られるように、テクスチャード加工エンボスロールでフィルムの反対側に圧力を加えた。テクスチャード加工エンボスロールはゴムから作製され、1.397ミクロン(55マイクロインチ)の粗さを有する表面テクスチャ
を有していた。次いで、フィルムの各表面を接着についてテストした。結果を表4に記載する。表4に見られるように、本実施形態では、フィルムは基材に接着しなかった。
表5に記載した組成を有する一連の3層同時押出し成形フィルムを調製した(層2はコア層であり、層1および3は外側すなわち「表皮」層である)。フィルムは、成形スクリーン上に成型し、成形スクリーンは、周囲に巻き付けられ、真空を施して図4Aに表したフィルム材料を形成する薄いワイヤーを有する。フィルムの様々な物理的特性についてテストした。結果を表6に記載する。
11 開口
12 接着層
13 突起部
14 剥離層
15 剥離面
16 基材
70 ダイ
72 ウェブ(カーテン)
74 ロール
76 ウェブ
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- 2009-06-26 EP EP09760031.6A patent/EP2331646B1/en active Active
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CN102066512A (zh) | 2011-05-18 |
ES2659060T3 (es) | 2018-03-13 |
JP2011521071A (ja) | 2011-07-21 |
EP2331646A2 (en) | 2011-06-15 |
KR101625241B1 (ko) | 2016-05-27 |
CN103991263A (zh) | 2014-08-20 |
KR20110028257A (ko) | 2011-03-17 |
EP2331646B1 (en) | 2017-11-29 |
KR20150117301A (ko) | 2015-10-19 |
US9993988B2 (en) | 2018-06-12 |
JP5833592B2 (ja) | 2015-12-16 |
JP2016145369A (ja) | 2016-08-12 |
WO2009158036A3 (en) | 2010-04-15 |
WO2009158036A2 (en) | 2009-12-30 |
KR20170003715A (ko) | 2017-01-09 |
TWI503230B (zh) | 2015-10-11 |
US20120141732A1 (en) | 2012-06-07 |
JP6344838B2 (ja) | 2018-06-20 |
US20140190612A1 (en) | 2014-07-10 |
CN103991263B (zh) | 2018-07-06 |
JP2013136791A (ja) | 2013-07-11 |
TW201008773A (en) | 2010-03-01 |
CN102066512B (zh) | 2014-06-04 |
KR101828663B1 (ko) | 2018-02-12 |
KR101828736B1 (ko) | 2018-03-29 |
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