JP2019506496A - 酸素気密性プラスチック、及び酸素気密性プラスチックから製造された包装材料 - Google Patents
酸素気密性プラスチック、及び酸素気密性プラスチックから製造された包装材料 Download PDFInfo
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- JP2019506496A JP2019506496A JP2018539112A JP2018539112A JP2019506496A JP 2019506496 A JP2019506496 A JP 2019506496A JP 2018539112 A JP2018539112 A JP 2018539112A JP 2018539112 A JP2018539112 A JP 2018539112A JP 2019506496 A JP2019506496 A JP 2019506496A
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- polymer
- packaging material
- polymer blend
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- packaging
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Abstract
Description
Claims (22)
- 15〜70%w/wのポリビニルアルコール(PVOH)及び/又はPVOHコポリマーと、30〜85%w/wの更なるポリマーとを含む、ポリマーブレンド。
- PVOHコポリマーはエチレン‐ビニルアルコールコポリマー(EVOH)である、請求項1に記載のポリマーブレンド。
- 前記更なるポリマーは、生分解性ポリマー、特にEN13432及び/又はEN14995に準拠して堆肥化できるプラスチックである、請求項1に記載のポリマーブレンド。
- 前記生分解性ポリマーは、脂肪族及び脂肪族芳香族ポリエステル、ポリエステルアミド、ポリ乳酸、ポリヒドロキシ脂肪酸、デンプン及びその誘導体、タンパク質、リグニン、並びにセルロース誘導体からなる群から選択される、請求項3に記載のポリマーブレンド。
- 前記更なるポリマーは、ポリエチレン(PE)、ポリプロピレン(PP)、ポリアミド(PA)及びポリスチレン(PS)からなる群から選択される、請求項1又は2に記載のポリマーブレンド。
- ポリビニルアルコール(PVOH)及び/又はPVOHコポリマー及び前記更なるポリマーを、混合、融合及び圧縮して、溶融状態の均質な混合物を得ることによって得られる、請求項1〜5のいずれか1項に記載のポリマーブレンド。
- 前記均質な混合物は、押出成形機又は射出成形機のスクリュを用いて製造できる、請求項6に記載のポリマーブレンド。
- 前記均質な混合物は、続いて顆粒化又は一次成形プロセスに供することができる、請求項6又は7に記載のポリマーブレンド。
- 前記ポリマーブレンドは、顆粒材料として存在する、請求項1〜8のいずれか1項に記載のポリマーブレンド。
- ポリマーブレンド、特に請求項1〜6のいずれか1項に記載のポリマーブレンドの製造方法であって、
前記方法は、以下のステップ:
(a)ポリビニルアルコール(PVOH)及び/又はPVOHコポリマーと更なるポリマーとを混合するステップであって、前記更なるポリマーと、PVOH及び/又はPVOHコポリマーとの、質量ベースの混合比は、85:15〜30:70である、ステップ;
(b)前記ステップ(a)で得られた混合物を融合、混合及び圧縮して、均質な混合物を得るステップ
を含む、方法。 - (c)前記ステップ(b)で得られた前記均質な混合物を押出成形するステップ
を更に含む、請求項10に記載の方法。 - (d)前記ステップ(c)で得られた押出成形物を顆粒化するステップ
を更に含む、請求項11に記載の方法。 - (e)前記均質な混合物、前記押出成形物又は顆粒材料を、一次成形するステップ
を更に含む、請求項10〜12のいずれか1項に記載の方法。 - ガス透過性が低い包装材料を製造するための、請求項1〜9のいずれか1項に記載のポリマーブレンドの使用。
- 射出成形、ディープドロー及び/又は牽引によって包装材料を使用するための、請求項14に記載の使用。
- 前記ガス透過性は、ISO15105‐2に従って測定した場合に、0.1〜1×10‐4cm3/m2/日、特に0.15〜0.9×10‐4cm3/m2/日である、請求項14又は15に記載の使用。
- 前記包装材料は生分解性であり、特にEN13432及び/又はEN14995に準拠して堆肥化できる、請求項14〜16のいずれか1項に記載の使用。
- 請求項1〜9のいずれか1項に記載のポリマーブレンドから少なくともある程度製造された、包装材料。
- 一次成形によって、特に射出成形、ディープドロー及び/又は牽引によって製造される、請求項18に記載の包装材料。
- 前記包装材料は生分解性であり、特にEN13432及び/又はEN14995に準拠して堆肥化できる、請求項18又は19に記載の包装材料。
- 前記包装材料は、ISO15105‐2に従って測定した場合に、0.1〜1×10‐4cm3/m2/日、特に0.15〜0.9×10‐4cm3/m2/日である、ガス透過性、特に酸素透過性を有する、請求項18〜20のいずれか1項に記載の包装材料。
- 前記包装材料は、特に食品コンテナとして設計された、食品用の包装材料である、請求項18〜21のいずれか1項に記載の包装材料。
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