JP2020516548A - 包装フィルム - Google Patents
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- JP2020516548A JP2020516548A JP2019555493A JP2019555493A JP2020516548A JP 2020516548 A JP2020516548 A JP 2020516548A JP 2019555493 A JP2019555493 A JP 2019555493A JP 2019555493 A JP2019555493 A JP 2019555493A JP 2020516548 A JP2020516548 A JP 2020516548A
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- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
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Abstract
Description
1% PdドープH−チャバザイト(SAR=22):試料を初期湿式含浸により調製した。硝酸Pd(〜8%)溶液を秤量し、ゼオライト上に所望の重量%の金属を得た。次いで、ゼオライトの細孔充填率がおよそ60〜70%になるまで硝酸Pd溶液を水で希釈した。ピペットを使用して溶液をゼオライト粉末(Tosoh Corporationから入手した)に加え、数滴加える毎に溶液を手作業で撹拌し、スパチュラを使用して「湿った塊」を砕き、試料をできるだけ均質に保った。次いで、試料を105℃(2時間)で乾燥し、次いで、ランプ速度10℃/minで500℃の温度で2時間焼成した。
二軸スクリュー押出機(Dr Collin)を使用してPdドープゼオライト粒子を選択されたポリマーと配合した。二軸スクリュー配合速度は、120〜180℃の間の設定温度で20rpmであった。次いで、配合した材料をマスターバッチにペレット化した。
異なる骨格タイプを有するPdドープゼオライト粒子を組み込んだエチル−酢酸ビニルフィルムの調製
二軸スクリュー押出機(Dr Collin)を使用して上述の異なる骨格タイプを有するPdドープゼオライト粒子とエチレン−酢酸ビニル(EVA FL00209)を130℃の温度で配合した。パラジウムドープゼオライトをおよそ1.5重量%含むフィルムが得られるようにゼオライト添加速度およびポリマー添加速度を調節した。次いで、以下の条件を使用して、配合した混合物をインフレーションフィルムラインを通じて押し出し、多層構造体(20μm)を生成した:
内層(EVA):
押出速度:25rpm
供給ゾーンからダイアダプターまでの温度プロファイル(℃):30、130、130、130、130
中層(EVA):
押出速度:25rpm
供給ゾーンからダイアダプターまでの温度プロファイル(℃):30、130、130、130、130
外層(EVA+吸収剤):
押出速度:50rpm
供給ゾーンからダイまでの温度プロファイル(℃):30、130、130、130、130、130、130および130
ゼオライト添加量=正味の灰分/正味のフィルム×100%
Pd−チャバザイト−1.57重量%;
Pd−ZSM−5−1.45重量%;
Pd−ベータ−1.89重量%;
一連の実験を実施して様々なパラジウムドープゼオライトのエチレン除去性能を評価し、ポリマーフィルムへの組込み後と粉末としてのそれらの性能を対比して比較した。
ゼオライト約0.2gを含むフィルムを調製し、シールした1990mlジャー内に置いた。エチレンガスをジャーに注入し、500ppmにした。ジャー内の内部雰囲気を一定の間隔で分析した。エチレンの濃度をGC分析により決定した。ジャー内の温度および湿度を試験中、5℃およびRH90〜95%に維持した。
図1は、エチレン吸着試験の結果を示す。1% Pd−チャバザイト(SAR 22)は、試験した他の骨格タイプと比較して高い除去速度で、かつ特に有利なプロファイルで、調査の期間にわたって継続的にエチレンを除去することが明らかになった。
Pdドープチャバザイト粒子を組み込んだ多層ポリマーフィルムおよびPdドープチャバザイト粉末のエチレン除去能の比較
0.2gの1% Pd−チャバザイト粉末および0.199gの1% Pd−チャバザイト粉末が組み込まれたEVA多層フィルムを実施例1に記載の通り調製した。食品貯蔵条件を模倣できる湿潤低温条件(5℃およびRH90〜95%)のエチレン取込み試験において両方のエチレン除去性能を評価した。多層フィルムのエチレン除去性能を図2に示した。フィルムがゼオライト粉末の活性をおよそ約80%保持することが明らかになった。
LDPEポリマーフィルムの調製および試験
二軸スクリュー押出機(Dr Collin)を使用して低密度ポリエチレン(Lupolen 3020H)を1% Pdドープチャバザイト粒子と配合し、160℃の温度で上述のマスターバッチを生成した。パラジウムドープゼオライトをおよそ2重量%含むフィルムが得られるようにゼオライト添加速度およびポリマー添加速度を調節した。次いで、以下の条件を使用して、配合した混合物をインフレーションフィルムラインを通じて押し出し、多層構造体(20μm)を生成した:
内層(LDPE):
押出速度:25rpm
供給ゾーンからダイアダプターまでの温度プロファイル(℃):30、160、160、160、160
中層(LDPE):
押出速度:25rpm
供給ゾーンからダイアダプターまでの温度プロファイル(℃):30、160、160、160、160
外層(LDPE+吸収剤):
押出速度:50rpm
供給ゾーンからダイまでの温度プロファイル(℃):30、160、160、160、160、160、160および160
Pd−チャバザイト−2.08重量%
一連の実験を実施して様々なパラジウムドープゼオライトのエチレン除去性能を評価し、ポリマーフィルムへの組込み後と粉末としてのそれらの性能を対比して比較した。
ゼオライト0.208gを含むフィルムを調製し、シールした1990mlジャー内に置いた。エチレンガスをジャーに注入し、500ppmにした。ジャー内の内部雰囲気を一定の間隔で分析した。エチレンの濃度をGC分析により決定した。ジャー内の温度および湿度を試験中、5℃およびRH90〜95%に維持した。
LDPE多層フィルムのエチレン除去性能を図3に示した。フィルムがゼオライト粉末の活性をおよそ約60〜70%保持することが明らかになった。
Claims (23)
- 少なくとも1つのポリマーフィルム層を含む、揮発性有機化合物の吸着のための包装フィルムであって、小細孔または中細孔パラジウムドープゼオライトの粒子がポリマーフィルム層内に分散している、包装フィルム。
- ポリマーフィルム層が、エチレン酢酸ビニルコポリマー、低密度ポリエチレン、ポリプロピレンまたは高耐衝撃性ポリスチレンから選択されるポリマーを含む、請求項1に記載の包装フィルム。
- ゼオライトが小細孔ゼオライトである、請求項1または請求項2に記載の包装フィルム。
- ゼオライトが、CHAである骨格タイプを有する、請求項3に記載の包装フィルム。
- 揮発性有機化合物の吸着のためのポリマーフィルムを調製するためのマスターバッチであって、
(i)ポリマーと、
(ii)小細孔または中細孔パラジウムドープゼオライトの粒子と
を含む、マスターバッチ。 - ポリマーが、エチレン酢酸ビニルコポリマー、低密度ポリエチレン、ポリプロピレンまたは高耐衝撃性ポリスチレンから選択される、請求項5に記載のマスターバッチ。
- ゼオライトが、CHAである骨格タイプを有する、請求項5または請求項6に記載のマスターバッチ。
- 少なくとも1つのポリマーフィルム層を含む、揮発性有機化合物の吸着のための包装フィルムであって、ポリマーフィルム層が、請求項5から7のいずれか一項に記載のマスターバッチを含む、包装フィルム。
- 揮発性有機化合物の吸着のためのポリマーフィルムを調製するための方法であって、
(i)少なくとも1種のポリマーと、小細孔または中細孔パラジウムドープゼオライトの粒子とを配合する工程と、
(ii)配合された混合物を押し出して、ポリマーフィルムを形成する工程と
を含む、方法。 - 配合温度および押出温度が120〜180℃の間である、請求項9に記載の方法。
- フィルムがインフレーションフィルム押出またはキャストフィルム押出により形成される、請求項9または請求項10に記載の方法。
- ゼオライトが、CHAである骨格タイプを有する、請求項9から11のいずれか一項に記載の方法。
- ポリマーが、エチレン酢酸ビニルコポリマー、低密度ポリエチレン、ポリプロピレンまたは高耐衝撃性ポリスチレンから選択される、請求項9から12のいずれか一項に記載の方法。
- 少なくとも1つのポリマーフィルム層を含む、揮発性有機化合物の吸着のための包装フィルムであって、ポリマーフィルム層が請求項9から13のいずれか一項に記載の方法により得ることができる、包装フィルム。
- ポリマーフィルム層が1〜10重量%のパラジウムドープゼオライトを含む、請求項1から4、請求項8または請求項14に記載の包装フィルム。
- ゼオライトが、ドープゼオライトの全重量に基づいて0.2〜2重量%パラジウムを含む、請求項1から4のいずれか一項、または請求項8、請求項14もしくは請求項15に記載の包装フィルム。
- ポリマーフィルム層が5〜30μmの厚さを有する、請求項1から4のいずれか一項、または請求項8または請求項14から16のいずれか一項に記載の包装フィルム。
- ゼオライト粒子が5〜10μmの間の粒子サイズ(d50)を有する、請求項1から4のいずれか一項、または請求項8または請求項14から17のいずれか一項に記載の包装フィルム。
- ポリマーフィルム層から実質的になる、請求項1から4のいずれか一項、または請求項8または請求項14から18のいずれか一項に記載の包装フィルム。
- ガス透過性バリア層を含む、請求項1から4のいずれか一項、または請求項8または請求項14から18のいずれか一項に記載の包装フィルム。
- 請求項1から4のいずれか一項、または請求項8または請求項14から20のいずれか一項に記載のフィルムを含む包装構造体。
- 有機物に由来する揮発性有機化合物の吸着のための、請求項1から4のいずれか一項、または請求項8または請求項14から20のいずれか一項に記載の包装フィルムの使用。
- 揮発性有機化合物がエチレンである、請求項22に記載の使用。
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PCT/GB2018/050945 WO2018189519A1 (en) | 2017-04-11 | 2018-04-10 | Packaging films |
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WO2016125050A1 (en) * | 2015-02-02 | 2016-08-11 | Saes Getters S.P.A. | Active package |
WO2016181132A1 (en) * | 2015-05-12 | 2016-11-17 | Innovia Films Limited | Film |
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US7531029B2 (en) * | 2005-06-01 | 2009-05-12 | Basf Catalysts Llc | Coated screen adsorption unit for controlling evaporative hydrocarbon emissions |
GB0522229D0 (en) * | 2005-11-01 | 2005-12-07 | Johnson Matthey Plc | Adsorption of volatile organic compounds derived from organic matter |
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US20110300768A1 (en) * | 2009-02-20 | 2011-12-08 | Reliance Industries Limited | Ethylene adsorbent packaging or barrier material and method of making the same |
GB0911478D0 (en) | 2009-07-02 | 2009-08-12 | Johnson Matthey Plc | Adsorption of volatile organic compounds derived from organic matter |
US8152902B2 (en) * | 2009-09-30 | 2012-04-10 | Cellresin Technologies, Llc | Packaging material such as film, fiber, woven and nonwoven fabric with adsorbancy |
US8697777B2 (en) | 2010-08-04 | 2014-04-15 | National Science & Technology Development Agency | Masterbatch for preparing plastic films with high ethylene permselectivity and the plastic films produced therefrom |
GB201311594D0 (en) * | 2013-06-28 | 2013-08-14 | Johnson Matthey Plc | Water-resistant composition |
KR102383420B1 (ko) * | 2013-12-06 | 2022-04-07 | 존슨 맛쎄이 퍼블릭 리미티드 컴파니 | 귀금속 및 소기공 분자체를 포함하는 수동 NOx 흡착제 |
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JPH03111264A (ja) * | 1989-09-13 | 1991-05-13 | Shinanen New Ceramic:Kk | 鮮度保持包装材料 |
JPH03280827A (ja) * | 1990-03-09 | 1991-12-11 | Toray Ind Inc | エチレン除去剤及びその使用方法 |
JPH04325070A (ja) * | 1991-04-23 | 1992-11-13 | Kiroku Sozai Sogo Kenkyusho:Kk | 鮮度保持フィルムの製造法 |
WO2016125050A1 (en) * | 2015-02-02 | 2016-08-11 | Saes Getters S.P.A. | Active package |
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