CA2584080C - Inherently open-celled polypropylene foam with large cell size - Google Patents

Inherently open-celled polypropylene foam with large cell size Download PDF

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Publication number
CA2584080C
CA2584080C CA2584080A CA2584080A CA2584080C CA 2584080 C CA2584080 C CA 2584080C CA 2584080 A CA2584080 A CA 2584080A CA 2584080 A CA2584080 A CA 2584080A CA 2584080 C CA2584080 C CA 2584080C
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CA
Canada
Prior art keywords
less
foam
polymer
polymer blend
polypropylene
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA2584080A
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English (en)
French (fr)
Other versions
CA2584080A1 (en
Inventor
Sandrine Burgun
Suresh Subramonian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Global Technologies LLC
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Dow Global Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Global Technologies LLC filed Critical Dow Global Technologies LLC
Publication of CA2584080A1 publication Critical patent/CA2584080A1/en
Application granted granted Critical
Publication of CA2584080C publication Critical patent/CA2584080C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/22—After-treatment of expandable particles; Forming foamed products
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • 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
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03—Extrusion of the foamable blend
    • 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
    • C08J2205/00—Foams characterised by their properties
    • C08J2205/04—Foams characterised by their properties characterised by the foam pores
    • C08J2205/05—Open cells, i.e. more than 50% of the pores are open
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/14—Applications used for foams
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
    • C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
CA2584080A 2004-10-22 2005-10-07 Inherently open-celled polypropylene foam with large cell size Expired - Fee Related CA2584080C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US62149504P 2004-10-22 2004-10-22
US60/621,495 2004-10-22
PCT/US2005/036002 WO2006047060A1 (en) 2004-10-22 2005-10-07 Inherently open-celled polypropylene foam with large cell size

Publications (2)

Publication Number Publication Date
CA2584080A1 CA2584080A1 (en) 2006-05-04
CA2584080C true CA2584080C (en) 2013-03-12

Family

ID=35500650

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2584080A Expired - Fee Related CA2584080C (en) 2004-10-22 2005-10-07 Inherently open-celled polypropylene foam with large cell size

Country Status (12)

Country Link
US (1) US7759404B2 (https=)
EP (1) EP1805250B1 (https=)
JP (1) JP5031572B2 (https=)
KR (1) KR20070083746A (https=)
CN (1) CN101044195B (https=)
AT (1) ATE388985T1 (https=)
AU (1) AU2005299985A1 (https=)
CA (1) CA2584080C (https=)
DE (1) DE602005005351T2 (https=)
DK (1) DK1805250T3 (https=)
ES (1) ES2299101T3 (https=)
WO (1) WO2006047060A1 (https=)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4796235B2 (ja) * 2001-03-27 2011-10-19 上野製薬株式会社 ビナフトール誘導体金属塩およびその製法
AU2003301313A1 (en) * 2002-10-17 2004-05-04 Dow Global Technologies Inc. Highly filled polymer compositions
KR100781511B1 (ko) * 2005-06-29 2007-12-03 삼성전자주식회사 홈 네트워크를 기반으로 하는 스트리밍 서비스 방법 및시스템
EP1847555A1 (en) 2006-04-18 2007-10-24 Borealis Technology Oy Multi-branched Polypropylene
EP1900764B1 (en) * 2006-08-25 2009-04-01 Borealis Technology Oy Polypropylene foam
WO2008148898A1 (es) * 2007-06-07 2008-12-11 Ulma C Y E, S. Coop. Composición, procedimiento e instalación para obtener en continuo una plancha espumada de naturaleza polimérica y plancha así obtenida
EP2000504A1 (en) 2007-06-08 2008-12-10 Borealis Technology Oy Polymer composition with high impact resistance and high melt strength
JP5107692B2 (ja) * 2007-12-17 2012-12-26 株式会社ジェイエスピー ポリプロピレン系樹脂発泡粒子、及びその発泡粒子成形体
US8552116B2 (en) 2009-10-13 2013-10-08 Kaneka Corporation Polypropylene resin, polypropylene resin composition, and foam-injection-molded article
JP5602468B2 (ja) * 2010-03-24 2014-10-08 株式会社ジェイエスピー ポリプロピレン系樹脂発泡ブロー成形体の製造方法
DE102011000399A1 (de) 2011-01-28 2012-08-02 Benecke-Kaliko Ag Verfahren zur Herstellung einer mehrschichtigen Kunststofffolie
US9067705B2 (en) 2011-06-17 2015-06-30 Berry Plastics Corporation Process for forming an insulated container having artwork
EP2720954B1 (en) 2011-06-17 2017-09-13 Berry Plastics Corporation Insulated container
US9102461B2 (en) 2011-06-17 2015-08-11 Berry Plastics Corporation Insulated sleeve for a cup
WO2012174422A2 (en) 2011-06-17 2012-12-20 Berry Plastics Corporation Insulated container with molded brim
JP5914141B2 (ja) * 2011-07-29 2016-05-11 日東電工株式会社 ポリオレフィン系樹脂発泡体用樹脂組成物、ポリオレフィン系樹脂発泡体、発泡体製造方法、及び発泡シール材
ES2486615B2 (es) 2011-08-31 2017-03-08 Berry Plastics Corporation Formulación, resina o extruido para conformar una estructura celular aislante, polimérica y no aromática, artículo y material que se obtiene, recipiente conformado y proceso de obtención.
DE102011083434B4 (de) 2011-09-26 2016-11-17 Neue Materialien Bayreuth Gmbh Verfahren zur Herstellung eines offenzelligen Polymerschaums
EP2819758A1 (en) * 2012-02-29 2015-01-07 Scott C. Smith Apparatus and methods for removing contaminants from a liquid
WO2014025877A1 (en) 2012-08-07 2014-02-13 Berry Plastics Corporation Cup-forming process and machine
RU2015119420A (ru) 2012-10-26 2016-12-20 Берри Пластикс Корпорейшн Полимерный материал для теплоизоляционного контейнера
AR093944A1 (es) 2012-12-14 2015-07-01 Berry Plastics Corp Troquelado para envase
AR093943A1 (es) 2012-12-14 2015-07-01 Berry Plastics Corp Reborde de un envase termico
US9840049B2 (en) 2012-12-14 2017-12-12 Berry Plastics Corporation Cellular polymeric material
EP2945994B1 (en) 2013-01-18 2018-07-11 Basf Se Acrylic dispersion-based coating compositions
CN104969531B (zh) * 2013-02-07 2019-02-15 飞利浦灯具控股公司 配置多控制器网络中的交互控制
US9957365B2 (en) 2013-03-13 2018-05-01 Berry Plastics Corporation Cellular polymeric material
AU2014239318A1 (en) 2013-03-14 2015-10-15 Berry Plastics Corporation Container
US10842574B2 (en) 2013-03-15 2020-11-24 Xodus Medical, Inc. Robotic patient protection system comprising a head mask structure, configured to protect the head of a patient, for use in robotic surgical procedures
US10842206B2 (en) 2013-03-15 2020-11-24 Xodus Medical, Inc. Patient protection system configured to protect the head of a patient
CN105592997A (zh) 2013-08-16 2016-05-18 比瑞塑料公司 用于绝缘容器的聚合物材料
WO2015031298A1 (en) 2013-08-26 2015-03-05 Berry Plastics Corporation Polymeric material for container
CN107075198A (zh) * 2014-03-10 2017-08-18 汉高股份有限及两合公司 声阻尼组合物
JP2017511287A (ja) * 2014-03-11 2017-04-20 プリントパック イリノイ インコーポレイテッド ブロー成形容器を製造するための組成物及び方法
WO2015156890A1 (en) * 2014-04-09 2015-10-15 Exxonmobil Chemical Patents Inc. Compositions comprising propylene-based elastomers, foamed layers made therefrom, and methods of making the same
US9758655B2 (en) 2014-09-18 2017-09-12 Berry Plastics Corporation Cellular polymeric material
US10513589B2 (en) 2015-01-23 2019-12-24 Berry Plastics Corporation Polymeric material for an insulated container
WO2016141179A1 (en) 2015-03-04 2016-09-09 Berry Plastics Corporation Polymeric material for container
EP3580275B1 (en) * 2017-02-07 2023-07-19 ExxonMobil Chemical Patents Inc. High melt strength polypropylenes with improved processability
CA3013585A1 (en) 2017-08-08 2019-02-08 Berry Global, Inc. Insulated container
BR112020018162B1 (pt) 2018-03-06 2024-01-23 Braskem America, Inc Composição espumante, e, espuma
US20240228722A9 (en) * 2021-02-18 2024-07-11 Sabic Global Technologies B.V. High melt strength polypropylene composition

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573152A (en) 1969-07-29 1971-03-30 Foster Grant Co Inc Thermoplastic elongated cellular products
US4389859A (en) * 1979-08-06 1983-06-28 Colosio Cesare Knitting machine
US4323528A (en) 1980-08-07 1982-04-06 Valcour Imprinted Papers, Inc. Method and apparatus for making large size, low density, elongated thermoplastic cellular bodies
JPS5923731B2 (ja) 1980-11-22 1984-06-04 日本スチレンペ−パ−株式会社 ポリプロピレン系樹脂予備発泡粒子
US4464484A (en) 1982-12-20 1984-08-07 Japan Styrene Paper Corporation Process for producing prefoamed polymer particles
US4714716A (en) 1984-11-16 1987-12-22 The Dow Chemical Company Lightly crosslinked linear olefinic polymer foams and process for making
IN166935B (https=) 1985-01-31 1990-08-11 Himont Inc
US4824720A (en) 1988-02-11 1989-04-25 The Dow Chemical Company Coalesced polyolefin foam having exceptional cushioning properties
US5116881A (en) * 1990-03-14 1992-05-26 James River Corporation Of Virginia Polypropylene foam sheets
US5527573A (en) 1991-06-17 1996-06-18 The Dow Chemical Company Extruded closed-cell polypropylene foam
AU1598097A (en) * 1996-02-07 1997-08-28 Tetra Laval Holdings & Finance Sa Thermoformable foam sheeting for producing open containers
US5817705A (en) 1996-10-15 1998-10-06 Tenneco Protective Packaging Inc. Short time frame process for producing extruded closed cell low density propylene polymer foams
US6417240B1 (en) * 1998-08-28 2002-07-09 Dow Global Technologies Inc. Foams prepared from blends of syndiotactic polypropylenes and thermoplastic polymers
US6541105B1 (en) * 1999-09-16 2003-04-01 Dow Global Technologies Inc. Acoustical open-cell polylefins and process for making
JP3704034B2 (ja) * 1999-12-06 2005-10-05 積水化成品工業株式会社 ポリプロピレン系樹脂発泡体、成形品およびその製法
HUP0300270A3 (en) * 2000-03-17 2004-09-28 Dow Global Technologies Inc Mi Process for producing polyolefin foam having a high service temperature this cellular foam and using them
CA2400648C (en) * 2000-03-17 2009-10-13 Dow Global Technologies Inc. Preparation of a macrocellular acoustic foam
HUP0301995A2 (hu) 2000-03-17 2003-09-29 Dow Global Technologies Inc. Hang- és hżelnyelésre alkalmas extrudált poliolefin habanyag, berendezés ennek elżállítására és az ebbżl készült szigetelższerkezet
AU2002211352A1 (en) * 2000-10-23 2002-05-06 Dow Global Technologies Inc. Propylene polymer foams
WO2002086719A2 (en) * 2001-04-24 2002-10-31 Koninklijke Philips Electronics N.V. Improved error correction scheme for use in flash memory allowing bit alterability
AU2002316094B2 (en) 2001-06-01 2007-03-22 Dow Global Technologies Inc. Fire resistance acoustic foam
US6946495B2 (en) * 2004-01-28 2005-09-20 Zwynenburg James L Foamable composition using recycled or offgrade polypropylene

Also Published As

Publication number Publication date
EP1805250A1 (en) 2007-07-11
DE602005005351D1 (de) 2008-04-24
DK1805250T3 (da) 2008-08-25
WO2006047060A1 (en) 2006-05-04
CA2584080A1 (en) 2006-05-04
EP1805250B1 (en) 2008-03-12
US7759404B2 (en) 2010-07-20
ATE388985T1 (de) 2008-03-15
CN101044195B (zh) 2010-05-26
AU2005299985A1 (en) 2006-05-04
US20080058437A1 (en) 2008-03-06
CN101044195A (zh) 2007-09-26
JP5031572B2 (ja) 2012-09-19
ES2299101T3 (es) 2008-05-16
JP2008518047A (ja) 2008-05-29
DE602005005351T2 (de) 2009-03-26
KR20070083746A (ko) 2007-08-24

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