JP4495590B2 - 高い透明度で高い剛性のフィルム - Google Patents
高い透明度で高い剛性のフィルム Download PDFInfo
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- JP4495590B2 JP4495590B2 JP2004536028A JP2004536028A JP4495590B2 JP 4495590 B2 JP4495590 B2 JP 4495590B2 JP 2004536028 A JP2004536028 A JP 2004536028A JP 2004536028 A JP2004536028 A JP 2004536028A JP 4495590 B2 JP4495590 B2 JP 4495590B2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B32B27/06—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
- B32B27/08—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 of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- 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
-
- 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
- B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
- B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
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- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0625—LLDPE, i.e. linear low density polyethylene
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/0633—LDPE, i.e. low density polyethylene
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
- B29K2023/0608—PE, i.e. polyethylene characterised by its density
- B29K2023/065—HDPE, i.e. high density polyethylene
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
-
- 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
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
-
- 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
- B29K2025/00—Use of polymers of vinyl-aromatic compounds 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
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/256—Sheets, plates, blanks or films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/91—Product with molecular orientation
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31909—Next to second addition polymer from unsaturated monomers
- Y10T428/31913—Monoolefin polymer
- Y10T428/31917—Next to polyene polymer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
図2は、3種類のフィルムについての収縮及び2%割線モジュラスの棒グラフを示す。
図3は、図2の3種類のフィルムについての光学的特性データの棒グラフを示す。
実施例1は、A/B/A構造で製造された3層フィルムであった。LDPE501Iをスキン層に用いそしてダウレックス(商標)2038をコア層に用いた。実施例1を製造するのに用いた同時押出条件は次の通りであった:ダイギャップ:50ミル、層比率:15/70/15%、生産速度:225ポンド/時(lb/hr)=9ポンド/時−実施例1を製造するのに用いたダイ円周(インチ)は次の通りであった:溶融温度:440/420/440°F。BURは2.5又は3.5であった。
本発明の3層構造の追加例を一つの比較例CSF(USP6,187,397B1より)と共に表Iに示す。これらの例は、飲料用包装、収縮一括包装、及び高い透明度の収縮フィルムに対して望ましい適切な収縮を有する高い剛性及び高い透明度を示す3層フィルムを示している。
通常の同時押出インフレートフィルムラインで、後二軸延伸を用いないで、高い透明度で高い剛性の5層フィルムを製造した。フィルムは全てA/B/C/B/Aフィルム構造を有していた。フィルムの層は、表IIに示す成分及び(全フィルム厚さの)パーセンテージを有していた。フィルムは全て全体の厚さ1.5ミルを有していた。
実施例1:
スキン層にダウ・ポリスチレン・スチロン(Styron)663(商標)及びK樹脂(K−13)を用いて、種々の3層構造を製造した。LDPE132I又はダウレックス2045とLDPE132Iとのブレンドをコア層に用いた。これらの構造の特性を表IIIに示す。
Claims (22)
- 少なくとも3層を有する同時押出ホットインフレートフィルムであって、2層のスキン層の間に挟まれたコア層を含み、ASTM−D−1003で測定して15%未満の曇り度値、ASTM−D−638で測定して50,000psiを超える2%割線モジュラス、及びASTM−D−2732で測定して0%psiを超える横方向(CD)収縮を有し、ここで、
(a)前記コア層が、低密度ポリエチレン、高密度ポリエチレン、低密度ポリエチレンと高密度ポリエチレンとのブレンド、ポリプロピレンランダムコポリマー及び環状オレフィンコポリマーからなる群より選ばれ、そして
(b)前記スキン層がシングルサイト触媒を用いて製造される均質に枝分れしたポリエチレン樹脂を含まないという条件で、前記スキン層は、同じであっても異なっていてもよく、低密度ポリエチレン;低密度ポリエチレンと線状低密度ポリエチレンとのブレンド;ポリスチレン;環状オレフィンコポリマー;スチレン−ブタジエンブロックコポリマー及びポリプロピレンランダムコポリマーからなる群より選ばれる、フィルム。 - 前記フィルムが5%未満の曇り度値を有する、請求項1に記載するフィルム。
- 前記フィルムが少なくとも6psiの横方向収縮力により特徴付けられる、請求項1に記載のフィルム。
- 100,000psiを超える2%割線モジュラスを有する、請求項1に記載のフィルム。
- 0%と50%との間の横方向収縮を有する、請求項1に記載のフィルム。
- 単数又は複数の内層の低密度ポリエチレンがASTM D−1238で測定して1.0以下のメルトインデックスI2を有する、請求項1に記載のフィルム。
- 前記フィルムが3層を有する、請求項1に記載のフィルム。
- フィルム構造A/B/A(スキン層は同じ樹脂であることを意味する)又はA/B/C(スキン層は異なる樹脂であることを意味する)を有する、請求項7に記載のフィルム。
- 60,000psiを超える2%割線モジュラスを有する、請求項7に記載のフィルム。
- 70,000psiを超える2%割線モジュラスを有する、請求項7に記載のフィルム。
- 80,000psiを超える2%割線モジュラスを有する、請求項7に記載のフィルム。
- 100,000psiを超える2%割線モジュラスを有する、請求項7に記載のフィルム。
- 0%と50%との間の横方向収縮を有する、請求項7に記載のフィルム。
- 少なくとも3層を有する同時押出ホットインフレートフィルムであって、コア層と、2層のスキン層の間に挟まれた少なくとも1つの他の内層を含み、ASTM−D−1003で測定して15%未満の曇り度値、ASTM−D−638で測定して50,000psiを超える2%割線モジュラス、及びASTM−D−2732で測定して0%を超える横方向(CD)収縮を有し、ここで、
(a)内層が、同じであっても異なっていてもよいという条件で、低密度ポリエチレン、線状低密度ポリエチレン、高密度ポリエチレン、それらのブレンド、ポリプロピレンランダムコポリマー、スチレン/ブタジエンコポリマー、ポリスチレン及び環状オレフィンコポリマーからなる群より選ばれ、そして
(b)スキン層がシングルサイト触媒を用いて製造される均質に枝分れしたポリエチレン樹脂を含まないという条件で、スキン層は、同じであっても異なっていてもよく、低密度ポリエチレン;低密度ポリエチレンと線状低密度ポリエチレンとのブレンド;低密度ポリエチレンと超低密度ポリエチレンとのブレンド;ポリスチレン;エチレン酢酸ビニルコポリマー;エチレン酢酸ビニルコポリマーと線状低密度ポリエチレンとのブレンド;環状オレフィンコポリマー;スチレン−ブタジエンブロックコポリマー;及びポリプロピレンランダムコポリマーからなる群より選ばれる、フィルム。 - 前記フィルムが100,000psiを超える2%割線モジュラスを有する、請求項14に記載のフィルム。
- 前記フィルムが0%と50%との間の横方向収縮を有する、請求項14に記載のフィルム。
- 単数又は複数の内層の低密度ポリエチレンがASTM D−1238で測定して1.0以下のメルトインデックスI 2 を有する、請求項14に記載のフィルム。
- 前記フィルムが5%未満の曇り度値を有する、請求項14に記載のフィルム。
- 前記フィルムがフィルム構造A/B/C/B/A(2つのスキン層は同じ樹脂であり、2つの内層は同じ樹脂であることを意味する)又はA/B/C/D/E(全ての層が異なる樹脂であることを意味する)を有する、請求項14に記載のフィルム。
- 前記フィルムが少なくとも6psiの横方向収縮力により特徴付けられる、請求項14に記載のフィルム。
- 前記スキン層が、ポリスチレン、スチレン−ブタジエンコポリマー、又は環状オレフィンコポリマーを含む、請求項14に記載のフィルム。
- 前記環状オレフィンコポリマーが、エチレン−ノルボルネンコポリマーである、請求項21に記載のフィルム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41109202P | 2002-09-16 | 2002-09-16 | |
PCT/US2003/025395 WO2004024433A2 (en) | 2002-09-16 | 2003-08-14 | High clarity, high stiffness films |
Publications (2)
Publication Number | Publication Date |
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JP2005538867A JP2005538867A (ja) | 2005-12-22 |
JP4495590B2 true JP4495590B2 (ja) | 2010-07-07 |
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JP2004536028A Expired - Fee Related JP4495590B2 (ja) | 2002-09-16 | 2003-08-14 | 高い透明度で高い剛性のフィルム |
Country Status (10)
Country | Link |
---|---|
US (1) | US8092920B2 (ja) |
EP (1) | EP1539489B1 (ja) |
JP (1) | JP4495590B2 (ja) |
KR (1) | KR101092056B1 (ja) |
CN (1) | CN1681650B (ja) |
AU (1) | AU2003268092A1 (ja) |
BR (1) | BR0314444B1 (ja) |
ES (1) | ES2490717T3 (ja) |
MX (1) | MXPA05002885A (ja) |
WO (1) | WO2004024433A2 (ja) |
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WO2006049070A1 (ja) * | 2004-11-01 | 2006-05-11 | Asahi Kasei Chemicals Corporation | 開封容易な袋 |
US7265183B2 (en) | 2004-11-01 | 2007-09-04 | Ticona Llc | High clarity, low friction polyethylene compositions for films |
US7473473B2 (en) * | 2004-12-01 | 2009-01-06 | Cryovac, Inc. | Tear resistant shrink film |
US20060115613A1 (en) * | 2004-12-01 | 2006-06-01 | Cryovac, Inc. | Patch bag and barrier bag |
US20060177641A1 (en) * | 2005-02-09 | 2006-08-10 | Breese D R | Multilayer polyethylene thin films |
US20080075901A1 (en) * | 2005-02-23 | 2008-03-27 | Lee S Thomas | Multilayer Films Including Cycloolefin Copolymer and Styrene-Butadiene Copolymer |
EP1717021B1 (fr) | 2005-04-29 | 2012-06-27 | Ceisa Packaging | Film thermorétractable, de haute clarté et de haute rigidité |
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- 2003-08-14 AU AU2003268092A patent/AU2003268092A1/en not_active Abandoned
- 2003-08-14 JP JP2004536028A patent/JP4495590B2/ja not_active Expired - Fee Related
- 2003-08-14 KR KR1020057004407A patent/KR101092056B1/ko active IP Right Grant
- 2003-08-14 MX MXPA05002885A patent/MXPA05002885A/es active IP Right Grant
- 2003-08-14 US US10/527,142 patent/US8092920B2/en not_active Expired - Fee Related
- 2003-08-14 ES ES03749043.0T patent/ES2490717T3/es not_active Expired - Lifetime
- 2003-08-14 WO PCT/US2003/025395 patent/WO2004024433A2/en active Application Filing
- 2003-08-14 EP EP20030749043 patent/EP1539489B1/en not_active Expired - Lifetime
- 2003-08-14 CN CN038219883A patent/CN1681650B/zh not_active Expired - Fee Related
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CN103029389A (zh) * | 2012-12-03 | 2013-04-10 | 安徽省宁国双津(集团)实业有限公司 | 一种五层医用液体药剂包装薄膜及其制造方法 |
CN103029389B (zh) * | 2012-12-03 | 2015-06-10 | 安徽双津实业有限公司 | 一种五层医用液体药剂包装薄膜及其制造方法 |
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AU2003268092A1 (en) | 2004-04-30 |
MXPA05002885A (es) | 2005-10-05 |
CN1681650A (zh) | 2005-10-12 |
WO2004024433A2 (en) | 2004-03-25 |
US8092920B2 (en) | 2012-01-10 |
WO2004024433A3 (en) | 2004-09-16 |
CN1681650B (zh) | 2010-12-29 |
JP2005538867A (ja) | 2005-12-22 |
US20060057410A1 (en) | 2006-03-16 |
BR0314444B1 (pt) | 2014-12-30 |
EP1539489A2 (en) | 2005-06-15 |
KR20050049494A (ko) | 2005-05-25 |
ES2490717T3 (es) | 2014-09-04 |
BR0314444A (pt) | 2005-07-19 |
KR101092056B1 (ko) | 2011-12-12 |
EP1539489B1 (en) | 2014-06-04 |
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