JP2016221955A - 多層ポリウレタン保護フィルム - Google Patents
多層ポリウレタン保護フィルム Download PDFInfo
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- JP2016221955A JP2016221955A JP2016090236A JP2016090236A JP2016221955A JP 2016221955 A JP2016221955 A JP 2016221955A JP 2016090236 A JP2016090236 A JP 2016090236A JP 2016090236 A JP2016090236 A JP 2016090236A JP 2016221955 A JP2016221955 A JP 2016221955A
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- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
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- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
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Abstract
【解決手段】第一層、第二層およびシリコーン系PSA層を含み、第一層は、(a)ポリエステル系ポリウレタン、ポリカーボネート系ポリウレタンまたはその組合せもしくはブレンドから選択される、溶剤系または水系脂肪族ポリウレタン;または(b)ポリカプロラクトン系熱可塑性脂肪族ポリウレタン、ポリエステル系熱可塑性脂肪族ポリウレタン、ポリエーテル系熱可塑性脂肪族ポリウレタンまたはその組合せのいずれかから構成されるか、いずれかから主として構成されるか、またはいずれかを少なくとも含む多層保護フィルム。
【選択図】なし
Description
(a)ポリエステル系ポリウレタン、ポリカーボネート系ポリウレタンまたはその組合せもしくはブレンドから選択される、溶剤系または水系脂肪族ポリウレタン;または
(b)ポリカプロラクトン系熱可塑性脂肪族ポリウレタン、ポリエステル系熱可塑性脂肪族ポリウレタン、ポリエーテル系熱可塑性脂肪族ポリウレタンまたはその組合せ
のいずれかから構成されるか、いずれかから主として構成されるか、またはいずれかを少なくとも含む。
代替法1:
1.脂肪族ポリウレタン(PU)のキャリアウェブ上へのコーティング
2.脂肪族TPUのキャリアウェブ上への押し出し
3.1および2のラミネーション
4.キャリアウェブ上へのSi−PSAコーティング
5.1および2のラミネーション生成物とのラミネーション
1.脂肪族TPUのキャリアウェブ上への押し出し
2.脂肪族ポリウレタン(PU)の脂肪族TPU上へのコーティング
3.脂肪族TPUからのキャリアウェブの除去
4.脂肪族TPUの裏面へのシリコーン系PSAのコーティング
1.脂肪族TPUのキャリアウェブ上への押し出し
2.工程1とは異なる脂肪族TPUの、先に塗布された脂肪族TPU層上への押し出しコーティング
3.脂肪族TPUからのキャリアウェブの除去
4.脂肪族TPUの裏面へのシリコーン系PSAのコーティング
1.脂肪族TPUのキャリアウェブ上への押し出し
2.1とは異なる脂肪族TPUのキャリアウェブ上への押し出し
3.1および2のラミネーション
4.脂肪族TPU1からのキャリアウェブの除去
5.脂肪族TPU1の裏面へのシリコーン系PSAのコーティング
1.2つの異なる脂肪族TPUのキャリアウェブ上への共押し出し
2.キャリアウェブの除去
3.脂肪族TPUの裏面へのシリコーン系PSAのコーティング
−脂肪族PU
−脂肪族TPU
−シリコーン系PSA
を有する。
−脂肪族TPU
−脂肪族TPU(第一層TPUとは異なる化学的特性および/または物理的特性)
−シリコーン系PSA
を有する。
(a)ポリエステル系ポリウレタン、ポリカーボネート系ポリウレタンまたはその組合せもしくはブレンドから選択される、溶媒系または水系脂肪族ポリウレタン;または
(b)ポリカプロラクトン系熱可塑性脂肪族ポリウレタン、ポリエステル系熱可塑性脂肪族ポリウレタン、ポリエーテル系熱可塑性脂肪族ポリウレタンまたはその組合せ
のいずれかからなるか、いずれかから主としてなるか、またはいずれかを少なくとも含む。
本発明による多層保護フィルムを製造する方法は:(a)脂肪族TPU層をキャリアウェブ上に形成する工程、(b)脂肪族PU、または脂肪族TPU層を第一のTPU層上に形成する工程、ここで2つのTPU層は異なる物理的特性および/または化学的特性を有し、(c)第一の脂肪族TPU層からキャリアウェブを除去する工程、(d)最初にキャリアウェブで保護された脂肪族TPU表面に、シリコーン系PSAをコーティングするか、またはそうでなければ塗布する工程を含む。
本発明による多層保護フィルムを製造する方法は、(a)第一すなわち脂肪族PU層を形成する工程;(b)第二すなわち脂肪族TPU層を形成する工程;(c)シリコーン系PSA層を形成する工程;(d)脂肪族PU層の1つの主表面を脂肪族TPU層の1つの主表面に接着させる工程;(e)(例えば、密着のために、コロナ処理して、感圧接着剤を熱的にラミネートするか、コーティングするか、またはそうでなければ塗布することによって)シリコーン系PSA層を、脂肪族TPU層の反対側の主表面に接着させる工程を含み、脂肪族TPU層は、脂肪族PU層およびシリコーン系PSA層の間に挟まれている。脂肪族PU層は、水系脂肪族ポリウレタン分散体(すなわち、PUD)から作製された脂肪族ポリウレタン、または溶媒系脂肪族ポリウレタン溶液から作製された脂肪族ポリウレタンから構成されるか、それらから主として構成されるか、またはそれらを少なくとも含む。脂肪族ポリウレタンは、ポリエステル系ポリウレタン、ポリカーボネート系ポリウレタン、または双方の組合せとすることができる。脂肪族TPU層は、ポリカプロラクトン系脂肪族TPU(すなわち、熱可塑性ポリウレタン)から構成されるか、それから主として構成されるか、またはそれを少なくとも含む。PSA層は、感圧シリコーン接着剤を含む。
Claims (14)
- 少なくとも1つの脂肪族ポリウレタンまたは少なくとも1つの熱可塑性脂肪族ポリウレタンを含む第一層、前記脂肪族ポリウレタンは、ポリエステル系ポリウレタン、ポリカーボネート系ポリウレタン、ポリカプロラクトン系熱可塑性脂肪族ポリウレタン、もしくはそれらの組合せであり、前記熱可塑性脂肪族ポリウレタンは、ポリカプロラクトン系ポリウレタン、ポリエステル系ポリウレタン、ポリエーテル系ポリウレタン、もしくはそれらの組合せである;
熱可塑性脂肪族ポリウレタンの第一層とは異なった物理的特性および/または化学的特性を有する少なくとも1つの熱可塑性脂肪族ポリウレタンを含む第二層、前記熱可塑性脂肪族ポリウレタンは、ポリカプロラクトン系ポリウレタン、ポリエステル系ポリウレタン、ポリエーテル系ポリウレタン、またはそれらの組合せである;および
少なくとも1つの感圧シリコーン接着剤を含むPSA層;
を含む多層保護フィルムであって、
前記第一層は前記第二層の1つの主表面に接着され、前記PSA層は前記第二層の反対側の主表面に接着され、前記第二層は、前記第一層および前記PSA層の間に挟まれ、
前記脂肪族ポリウレタンは、少なくとも1つの脂肪族ポリオールおよび少なくとも1つの脂肪族ジイソシアネートの反応生成物であり、前記脂肪族ポリオールは、ポリエステルポリオール、ポリカーボネートポリオール、ポリカプロラクトンポリオール、またはそれらの組合せである、多層保護フィルム。 - 前記ポリウレタンが前記脂肪族ポリオールと、少なくとも1つの脂肪族ジイソシアネートおよび少なくとも1つの脂肪族トリイソシアネートの混合物との反応生成物である、請求項1に記載のフィルム。
- 前記脂肪族ジイソシアネートがイソホロンジイソシアネートを含む、請求項1または2に記載のフィルム。
- 前記脂肪族ジイソシアネートがビス(4−イソシアナト−シクロヘキシル)メタンを含む、請求項1または2に記載のフィルム。
- 前記脂肪族ポリウレタンが前記ポリカーボネート系ポリウレタンである、請求項1〜4のいずれかに記載のフィルム。
- 前記脂肪族ポリウレタンが前記ポリエステル系ポリウレタンである、請求項1〜4のいずれかに記載のフィルム。
- 前記脂肪族ポリウレタンが前記ポリエステル系ポリウレタンおよび前記ポリカーボネート系ポリウレタンの組合せである、請求項1〜4のいずれかに記載のフィルム。
- 前記脂肪族ポリウレタンがわずかに架橋されたポリウレタンである、請求項1〜7のいずれかに記載のフィルム。
- 前記脂肪族ポリウレタンが水系ポリウレタンである、請求項1〜8のいずれかに記載のフィルム。
- 前記脂肪族ポリウレタンが溶剤系ポリウレタンである、請求項1〜8のいずれかに記載のフィルム。
- 前記フィルムが透明である、請求項1〜10のいずれか一項に記載のフィルム。
- 前記フィルムが物品の表面に適合するサイズおよび形状とされる、請求項1〜11のいずれかに記載のフィルム。
- 請求項12に記載の前記多層保護フィルムによって保護された表面を有する物品。
- 多層保護フィルムの製造方法であって、
(a)少なくとも1つの脂肪族ポリウレタンまたは少なくとも1つの熱可塑性脂肪族ポリウレタンを含む第一層を形成する工程、前記脂肪族ポリウレタンは、ポリエステル系ポリウレタン、ポリカーボネート系ポリウレタン、ポリカプロラクトン系熱可塑性脂肪族ポリウレタン、もしくはそれらの組合せであり、または、
少なくとも1つの熱可塑性脂肪族ポリウレタンは、前記熱可塑性脂肪族ポリウレタンがポリカプロラクトン系ポリウレタン、ポリエステル系ポリウレタン、ポリエーテル系ポリウレタン、またはそれらの組合せである;
(b)熱可塑性脂肪族ポリウレタンの第一層とは異なる物理的特性および/または化学的特性を有する少なくとも1つの熱可塑性脂肪族ポリウレタンを含む第二層を形成する工程、前記熱可塑性脂肪族ポリウレタンは、ポリカプロラクトン系ポリウレタン、ポリエステル系ポリウレタン、ポリエーテル系ポリウレタン、またはそれらの組合せである;
(c)少なくとも1つの感圧シリコーン接着剤を含むPSA層を形成する工程;
(d)第一層の1つの主表面を第二層の1つの主表面に接着させる工程;および、
(e)PSA層を第二層の反対側の主表面に接着させる工程、第二層は第一層およびPSA層の間に挟まれる;
を含み、
前記脂肪族ポリウレタンは、少なくとも1つの脂肪族ポリオールおよび少なくとも1つの脂肪族ジイソシアネートの反応生成物であり、前記脂肪族ポリオールは、ポリエステルポリオール、ポリカーボネートポリオール、ポリカプロラクトンポリオール、またはそれらの組合せである、方法。
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JP2021134310A (ja) * | 2020-02-28 | 2021-09-13 | 宇部興産株式会社 | ポリウレタン樹脂水性分散体を含む接着剤組成物 |
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