JP2006508830A - 生分解性多層フィルム - Google Patents
生分解性多層フィルム Download PDFInfo
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- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B27/00—Layered products comprising a layer of synthetic resin
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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- B32B9/045—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2003/00—Use of starch or derivatives as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/04—Polyesters derived from hydroxycarboxylic acids
- B29K2067/046—PLA, i.e. polylactic acid or polylactide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0059—Degradable
- B29K2995/006—Bio-degradable, e.g. bioabsorbable, bioresorbable or bioerodible
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
最小限の酸素透過性を有し、延伸可能でありそしてN2、CO2および水蒸気に関して明確なバリヤー効果を有する該多層フィルムの提供。
【解決手段】この課題は、それぞれ少なくとも1種類のa)変性された熱可塑性澱粉ブレンドよりなる澱粉ブレンド層およびb)生分解性ポリエステルよりなるポリエステル層
よりなる同時押出成形によって得られる得る多層フィルムによって解決される。
Description
− 酸素浸透性が小さいこと(酸素透過性)、
− 水蒸気透過性が小さいこと、
− 優れた機械的性質、
− シーリング性能、
− 延伸性能、
− 包装時の優れた作業性能、
− 経済的製法、
− 食品安全性、
− 経済的で環境に優しい廃棄処分。
− 積層:ベース層の上に積層用層を次に適用する;
− 同時押出成形:一つの作業段階で数層を同時に製造する;
− ブレンドの製造:材料を混合しそして押出成形して層とする。
間の各成分が似た融点および粘度であることである。これらのパラメーターはできるだけ互いに近似しているべきであるかまたは可塑剤または結合剤または他の添加物の様な添加物によって相互に近づけることができる。
- J. Schroter の Biologisch abbaubare Werkstoffe (BAW), “Kunststoffe 89”, (1999) 4, 第 101-104頁;
- F. Reckert の Biologisch abbaubare Kunststoffe, “Kunststoffe 92 (2002) 1”, 第 78-79頁。
− 完全に生分解性であり、
− 酸素透過性が少なく、
− 延伸可能でありそして
− N2、CO2および水蒸気に関して明確なバリヤー効果を有する
該多層フィルムを提供することである。
a)変性された熱可塑性澱粉ブレンドよりなる澱粉ブレンド層および
b)生分解性ポリエステルよりなるポリエステル層
よりなる同時押出成形によって得られる多層フィルムによって解決される。
− 30〜75%、好ましくは40〜75%の澱粉、
− 2〜10%の水、
− 10〜50%、好ましくは15〜40%の生分解性ポリエステル、
− 5〜20%の相容化剤、
− 10%までの可塑剤、および
− 3%までの加工助剤。
で表される。
− 優れた引裂強度、
− 優れた伸長性、
− (1.5倍までの)延伸可能性、
− 優れたシーリング性、
− 完全な生分解性、
− 食品にとって安全。
a)変性された熱可塑性澱粉ブレンドよりなる層および
b)生分解性ポリエステルよりなる層
が同時に形成される同時押出成形法によって製造される。
− 押出成形機の種類および大きさ、
− 澱粉ブレンド中の各成分の重量比、
− スクリューの形状、
− 温度、滞留時間、
− 剪断速度、
− 剪断条件のもとでの各成分の粘度比、
− 剪断負荷時間、
− 界面エネルギー。
Ecoflex FBX 7011, (BASF, Ludwigshafen):ブタンジオール、アジピン酸およびテレフタル酸の各モノマーよりなるランダムな脂肪族芳香族コポリエステル。テレフタル酸の割合は30%より少ない。
PLA 4042 D, (Cargill Dow LLC, USA):ポリラクチド。
BIOPar(R) 9345, (BIOP Biopolymer Technologies AG, Dresden) : 澱粉、相容化剤、グリセリン、加工助剤および種々の割合のポリエステルよりなる澱粉ブレンド。
BIOPar(R) 9345/15 : 以下の成分を含有する:
約 40 % 〜50 % の澱粉、
10 % 〜 20 % の相容化剤、
1 % 〜3 % の加工助剤、
20 % 〜50 % の EcoFlex FBX 7011 (MFI 10)
10 % のグリセリン。
BIOPar(R) 9345/31 : 50 % のEcoFlex FBX 7011 (MFI 10)を含有する。
BIOPar(R) 9345/30 : 40 % のEcoFlex FBX 7011 (MFI 10)を含有する。
BIOPar(R) 9312/23 : 30 % のEcoFlex FBX 7011 (MFI 10)を含有する。
BIOPar(R)9313/24 : 20 % のEcoFlex FBX 7011 (MFI 10)を含有する。
- 押出機 A: Ecoflex FBX 7011外側層用のVarex(R), 60.30 D ;
- 押出機 B:BIOPar7 9345-30 中間層用の Varex(R), 90.30 D(LTS スクリュー 37021001装備);
- 押出機 C:Ecoflex FBX 7011内側層用の Varex(R), 60.30 D ;
- 顆粒物質の計量供給装置および特別な混合および均一化領域を備えた搬送スク リューおよび篩交換器(screen changers);
- 280 mmのダイス内径、0.8mmの間隙幅を有する三層フィルムのためのブローフィル ム-ダイス
1,530mmのフィルム幅および40μmのフィルム厚さで以下のパラメータが達成される:
- 169.6kg/時の総材料処理量、
- 圧力:外側280bar、中間247bar、内側250bar、および
- 温度:
胴体−フィルター外側: - 120 - 140 - 150 - 140 - 140 - 140 °C
胴体−フィルター中間: - 100 - 120 - 130 - 130 - 130 - 125 - 125 - 130 °C
胴体−フィルター内側: - 120 - 140 - 150 - 140 - 140 - 140 °C
ブローダイス温度: 130 °C
- 取り出し速度: 17.7 m/分
・ ブロー比: 1:3.5 〜 1:5。
- Ecoflex FBX 7011外側層用の外部押出機 K 45-24 D C ;
- BIOPar(R) 9345-30 中間層用の、バリヤースクリューを装備した主要押出機 K 70-30 D-B;
- Ecoflex FBX 7011内側層用の押出機K 45-24 D C ;
- 顆粒物質の計量供給装置、および
・ 220 mmのダイス内径、1.0mmの間隙幅を有する三層フィルムのためのブローフィル ム−ダイス、
・ 適当な取り出しシステム。
- 総材料処理量:125kg/時、
- 圧力:外側135bar、中間260bar、内側195bar、および
- 温度:
胴体−フィルター外側: - 120 - 140 - 150 - 140 - 140 - 140 °C
胴体−フィルター中間: - 100 - 120 - 130 - 130 - 130 - 125 - 125 - 130 °C
胴体−フィルター内側: - 120 - 140 - 150 - 140 - 140 - 140 °C
ブローダイス温度 :130 °C
・ ブロー比: 1:2 〜 1:4。
- 取り出し速度: 20 m/分
- Ecoflex FBX 7011外側層用の、混合ヘッドを備えた外側押出成形機 BFA 30-25, LD 1:25, PE,
- BIOPar(R)9345-30 中間層用の、バリヤースクリュー(スクリュウー径45m m)、PEスクリューおよびMaddock要素を装備した主要押出機(Battenfeld 型 Uni-Ex 1-45-25 B、LD 1:25;
. Ecoflex FBX 7011内側層用の、混合ヘッドを有するPEスクリューを装備した内側 用押出成形機 BFA 30-25, LD 1:25。
- ConPro Gravimetric Feedhoppers Type KTW G3をベースとする、顆粒材料の計量供 給装置および
- 直径80mm、ノズル間隙1.0mmの単層または3〜5層フィルム用ブロー成形 フィルム用ダイス、および
・ 適当な取り出しシステム。
- 総材料処理量:20kg/時、
- 圧力:外側220bar、中間380bar、内側220bar、および
- 温度:
胴体−フィルター外側: - 140 - 151 - 155 - 145 - 142 °C
胴体−フィルター中間: - 110 - 140 - 140 - 135 - 135 °C
胴体−フィルター内側: - 140 - 151 - 155 - 145 - 142 °C
ブローダイス温度 130 °C
- ブロー比: 1:3.2、
- 取り出し速度: 8 m/分。
- 中間層Bの澱粉ブレンドの組成(第2、3および5列)、
- 延伸 (第6および7列)、
・ 湿度(第8列)。
実施例2 (第1列および第2列): 0.8mm
実施例3(第3および第4列):1.0mm
Claims (23)
- それぞれ少なくとも1枚の
a)1%より多く10%までの水を含有する変性された熱可塑性澱粉ブレンドよりなる澱粉ブレンド層および
b)生分解性ポリエステルよりなるポリエステル層
よりなる同時押出成形によって得られる多層フィルムにおいて、澱粉ブレンド層が少なくとも2種類のランダムな繰返モノマー単位よりなるポリヒドロキシアルカノエートコポリマーを含有しておらず、その際に第一のモノマーが構造式(I)
[式中、R1がHまたはClまたはC2−アルキル基であり、nは1または2である。]
を有しそして第二のモノマーが構造式 (II)
[式中、R2はC3〜C19−アルキルまたはC3〜C19アルケニル基である。]
を有するかまたは第二のモノマーは構造式 (III):
[式中、mは2〜9である。]
で表されることを特徴とする、上記多層フィルム。 - 澱粉ブレンド層が2種類のポリエステル層で囲われている、請求項1に記載の多層フィルム。
- 変性された熱可塑性澱粉ブレンドが以下の成分:
− 30〜75%の澱粉、
− 2〜10%の水、
− 10〜50%の生分解性ポリエステル、
− 5〜20%の相容化剤、
− 10%までの可塑剤および
− 3%までの加工助剤
よりなる、請求項1または2に記載の多層フィルム。 - 生分解性ポリエステルがモノマーとしてのジヒドロキシ化合物およびジカルボン酸よ
りなる請求項1〜3のいずれか一つに記載の多層フィルム。 - モノマーがブタンジオール、アジピン酸およびテレフタル酸;またはブタンジオール、コハク酸およびアジピン酸である請求項4に記載の多層フィルム。
- ポリエステル層がポリラクチドまたはポリラクチドと他のポリエステルとのブレンドまたはポリ酢酸ビニルを含有する、請求項1〜3のいずれか一つに記載の多層フィルム。
- 相容化剤がブロック状態で配置された親水性基および疎水性基を有しているポリマー成分を含有する、請求項3に記載の多層フィルム。
- 相容化剤がブロック状態で鹸化されている鹸化されたポリ酢酸ビニルを含有する、請求項7に記載の多層フィルム。
- 可塑剤がグリセリンである、請求項3に記載の多層フィルム。
- フィルムの総厚が10μm〜300μmの範囲内にある、請求項1〜9のいずれか一つに記載の多層フィルム。
- ポリエステル層の厚さが1μm〜100μmの間である、請求項1〜10のいずれか一つに記載の多層フィルム。
- 澱粉ブレンド層の厚さが5μm〜250μmである、請求項1〜11のいずれか一つに記載の多層フィルム。
- 澱粉ブレンド層がポリエステル層の2倍〜10倍厚い、請求項1〜12のいずれか一つに記載の多層フィルム。
- 同時押出成形、好ましくはブロー押出成形によって請求項1の多層フィルムを製造する方法において、それぞれ少なくとも1種類のa)変性された熱可塑性澱粉ブレンドの層およびb)生分解性ポリエステルの層で構成されており、澱粉ブレンド層およびポリエステル層の各材料が同時押出成形の際に似ている溶融特性および粘度特性を有しそして澱粉ブレンド層が1%より多く10%までの水を含有することを特徴とする、上記方法。
- 内側層および外側層の材料が130℃および10kgの荷重で10分当たり4〜10gのMFI値粘度および160℃および10kgの荷重で10分当たり5g〜40gのMFI値を有する、請求項14に記載の方法。
- 澱粉ブレンドの温度を90℃〜140℃に維持する、請求項14または15に記載の方法。
- ポリエステルの温度を110〜150℃の間に維持するかまたはポリエステル層のためにポリラクチド類を使用する場合には150〜190℃の間に維持する、請求項14〜16のいずれか一つに記載の方法。
- 1:2〜1:5のブロー比および8〜30m/分の取り出し速度である、請求項14〜17のいずれか一つに記載の方法。
- フィルムを押出成形後に延伸する、請求項14〜18のいずれか一つに記載の方法。
- フィルムが40〜80℃の温度で延伸される、請求項19に記載の方法。
- フィルムを1:5の比で延伸する、請求項19または20に記載の方法。
- 請求項1〜13のいずれか一つに記載の多層フィルムの包装材料としての用途。
- 請求項1〜13のいずれか一つに記載の多層フィルムの食品用包装材料としての用途。
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DE2002158227 DE10258227A1 (de) | 2002-12-09 | 2002-12-09 | Biologisch abbaubare Mehrschichtfolie |
PCT/DE2003/004157 WO2004052646A1 (de) | 2002-12-09 | 2003-12-09 | Biologisch abbaubare mehrschichtfolie |
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-
2002
- 2002-12-09 DE DE2002158227 patent/DE10258227A1/de not_active Withdrawn
-
2003
- 2003-12-09 CN CNA2003801054920A patent/CN1723123A/zh active Pending
- 2003-12-09 PT PT03812564T patent/PT1581388E/pt unknown
- 2003-12-09 JP JP2004557811A patent/JP4619127B2/ja not_active Expired - Fee Related
- 2003-12-09 AT AT03812564T patent/ATE549158T1/de active
- 2003-12-09 CA CA2543306A patent/CA2543306C/en not_active Expired - Lifetime
- 2003-12-09 EP EP11174359A patent/EP2399738A1/de not_active Withdrawn
- 2003-12-09 ES ES03812564T patent/ES2385020T3/es not_active Expired - Lifetime
- 2003-12-09 EP EP03812564A patent/EP1581388B1/de not_active Expired - Lifetime
- 2003-12-09 WO PCT/DE2003/004157 patent/WO2004052646A1/de active Application Filing
- 2003-12-09 US US10/538,020 patent/US20070042207A1/en not_active Abandoned
- 2003-12-09 AU AU2003296535A patent/AU2003296535A1/en not_active Abandoned
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2005
- 2005-06-09 NO NO20052785A patent/NO20052785L/no not_active Application Discontinuation
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Cited By (7)
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JP2009533283A (ja) * | 2006-04-14 | 2009-09-17 | ビオ−テック ビオロギッシェ ナトゥーアフェアパックンゲン ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト | 多層シート及びその製造方法 |
US8715816B2 (en) | 2006-04-14 | 2014-05-06 | Biotec Biologische Naturverpackungen Gmbh & Co. Kg | Multilayer film and method for manufacturing same |
JP2010525962A (ja) * | 2007-04-30 | 2010-07-29 | エバプ エンバイロンメンタルズ リミテッド | 生分解性多層高分子フィルムおよびそれから製造された包装材 |
JP2010527393A (ja) * | 2007-05-14 | 2010-08-12 | アルケマ フランス | 再生可能/生物分解可能な材料をベースにした共押出し用結合剤 |
JP2015508341A (ja) * | 2011-12-22 | 2015-03-19 | プランチック テクノロジーズ リミテッド | 多層フィルム |
JP2015533733A (ja) * | 2012-09-21 | 2015-11-26 | プランチック テクノロジーズ リミテッド | 食品パッケージ |
WO2021049637A1 (ja) * | 2019-09-13 | 2021-03-18 | 三菱ケミカル株式会社 | 生分解性積層シート、容器形成用シート及び生分解性容器 |
Also Published As
Publication number | Publication date |
---|---|
US20070042207A1 (en) | 2007-02-22 |
CN1723123A (zh) | 2006-01-18 |
CA2543306A1 (en) | 2004-06-24 |
NO20052785D0 (no) | 2005-06-09 |
WO2004052646A1 (de) | 2004-06-24 |
JP4619127B2 (ja) | 2011-01-26 |
PT1581388E (pt) | 2012-06-18 |
EP1581388A1 (de) | 2005-10-05 |
ES2385020T3 (es) | 2012-07-17 |
EP1581388B1 (de) | 2012-03-14 |
ATE549158T1 (de) | 2012-03-15 |
NO20052785L (no) | 2005-09-05 |
EP2399738A1 (de) | 2011-12-28 |
DE10258227A1 (de) | 2004-07-15 |
CA2543306C (en) | 2013-07-23 |
AU2003296535A1 (en) | 2004-06-30 |
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