KR20090085155A - 향상된 내고열성을 가지는 파이프 - Google Patents
향상된 내고열성을 가지는 파이프 Download PDFInfo
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- KR20090085155A KR20090085155A KR20097013715A KR20097013715A KR20090085155A KR 20090085155 A KR20090085155 A KR 20090085155A KR 20097013715 A KR20097013715 A KR 20097013715A KR 20097013715 A KR20097013715 A KR 20097013715A KR 20090085155 A KR20090085155 A KR 20090085155A
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- fraction
- base resin
- polyethylene
- pipe
- copolymer
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- 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
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
-
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
-
- 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
-
- 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
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
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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)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Resistance Heating (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
| 단위 | 실시예 1 | 비교예 1 | |
| 예비중합 반응기 | |||
| 온도 | ℃ | 60 | 70 |
| 압력 | bar | 61 | 64.2 |
| 배분 | 중량% | 0 | 2 |
| 루프 반응기 | |||
| 온도 | ℃ | 85 | 85 |
| 압력 | bar | 58 | 64 |
| C2 농도 | mol% | 5.7 | 5.8 |
| H2/C2 비율 | mol/kmol | 0.46 | 293 |
| C4/C2 비율 | mol/kmol | 92 | 163 |
| 배분 | 중량% | 51 | 38 |
| MFR2 | g/10분 | 110 | 300 |
| 밀도 | kg/m3 | 939 | 964 |
| 공단량체 | 부텐-1 | 부텐-1 | |
| 가스 상 반응기 | |||
| 온도 | ℃ | 80 | 85 |
| 압력 | bar | 20 | 19.5 |
| H2/C2 비율 | mol/kmol | 0 | 20 |
| C4/C2 비율 | mol/kmol | 0 | 138 |
| C6/C2 비율 | mol/kmol | 4 | 0 |
| 배분 | 중량% | 49 | 60 |
| 공단량체 | 헥센-1 | 부텐-1 | |
| 베이스 수지 밀도 | kg/m3 | 936 | 942.2 |
| 합성 | JSW CIM90P EXTRUDER | JSWCIM460P | |
| 공급량 | kg/hr | 217 | |
| SEI | kWh/t | 277 | 235 |
| 융해점 | ℃ | 222 | 285 |
| 배합된 수지의 특성 | |||
| 헥센-1 함량 | 중량% | 1.3 | 0 |
| 부텐-1 함량 | 중량% | 1.6 | 2.2 |
| MFR2 | g/10분 | 0.45 | |
| MFR5 | g/10분 | 1.4 | 0.45 |
| MFR21 | g/10분 | 10 | |
| Mw | g/mol | 157,000 | 240,000 |
| Mn | g/mol | 17,200 | 8,600 |
| MWD | 9.1 | 28 | |
| 화합물 밀도 | kg/m3 | 937.2 | 942.5 |
| SHI(2.7/210) | 8.6 | 21.8 | |
| SHI(5/300) | 15.2 | 36.5 | |
| Eta0 .05 | Pa s | 23450 | 82250 |
| E-모듈러스 | MPa | 640 | 868 |
| 휨 모듈러스 | MPa | 596 | 730 |
| 0℃에서 충격강도 | kJ/m2 | 10 | 16 |
| -20℃에서 충격강도 | kJ/m2 | 5.9 | |
| 언노치 ( Unnotched ) 32 mm 파이프의 압력 테스트 | |||
| 95℃에서 4.3MPa | h | 406 | <21 |
| Tcritical 에서 RCP-응력 | ℃ | +1 | |
Claims (16)
- 하기 분획 (A) 및 분획 (B)를 포함하는 폴리에틸렌 베이스 수지를 포함하는 폴리에틸렌 조성물로 이루어진 파이프:c. 에틸렌 공중합체의 분획 (A), 및d. 에틸렌 단일- 또는 공중합체의 분획 (B)여기서, 상기 분획 (A)는 상기 분획 (B) 보다 낮은 분자량을 가지고, 상기 폴리에틸렌 베이스 수지는 적어도 분획 (A) 및 (B)의 중합반응 내 단일 활성점 촉매(SSC)를 사용하는 중합과정에 의해 제조되며,상기 베이스 수지는(i) 940kg/m3 이하의 밀도,및(ii) 190℃/5kg에서 적어도 0.20g/10분의 MFR5를 가지고,상기 폴리에틸렌 조성물은 95 ℃ 및 4.3 MPa에서 ISO 1167에 따라 측정될 때 적어도 250시간의 고장시간을 갖는다.
- 제 1 항에 있어서,상기 에틸렌 공중합체 (A)는 945 kg/m3 미만의 밀도를 가지는 것인 파이프.
- 제 1 항 또는 제 2 항에 있어서,상기 분획 (A)는 에틸렌 및 C4 내지 C20 알파-올레핀 공단량체의 공중합체인 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 분획 (A)는 10 내지 300 g/10분의 유동속도(melt flow rate) MFR2를 가지는 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 폴리에틸렌 베이스 수지의 분획 (A) 및 분획 (B)의 중량비는 60:40 내지 40:60인 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 에틸렌 공중합체 (A) 및 에틸렌 단일- 또는 공중합체 (B)는 동일한 단 일 활성점 촉매의 존재 하에서 중합되는 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 폴리에틸렌 베이스 수지의 분자량 분포(MWD)는 5 내지 25인 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 폴리에틸렌 베이스 수지의 SHI(2.7/210)은 20 미만인 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 SHI(5/300)는 35 미만인 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,0.05 kPa의 전단 속도(Shear rate, eta0 .05)에서 상기 폴리에틸렌 베이스 수지의 점도는 적어도 15,000kPa인 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 폴리에틸렌 조성물은 ISO179에 따라 측정될 때 적어도 0 ℃에서 8 kJ/m2의 샤르피 충격 강도를 가지는 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 폴리에틸렌 조성물은 ISO 13477에 따라 측정될 때 +2℃ 또는 그 이하의 RCP-S4 값을 가지는 것인 파이프.
- 전술한 항 중 어느 한 항에 있어서,상기 폴리에틸렌 조성물은 ISO 527에 따른 400 내지 900 MPa의 탄성 모듈러스를 가지는 것인 파이프.
- 하기 분획 (A) 및 분획 (B)를 포함하는 폴리에틸렌 베이스 수지를 포함하는 폴리에틸렌 조성물로 이루어진 파이프의 제조방법:a. 에틸렌 공중합체의 분획 (A), 및b. 에틸렌 단일- 또는 공중합체의 분획 (B)여기서, 상기 분획 (A)는 상기 분획 (B) 보다 낮은 분자량을 가지고, 상기 폴리에틸렌 베이스 수지는 분획 (A) 및 (B) 중 적어도 하나의 중합반응에서 단일 활성점 촉매(SSC)를 사용하는 중합과정에 의해 제조되며,상기 베이스 수지는(i) 940kg/m3 이하의 밀도,및(ii) 190℃/5kg에서 적어도 0.20g/10분의 MFR5를 가지고,상기 폴리에틸렌 조성물은, 95℃ 및 4.3MPa에서 ISO 1167에 따라 측정될 때 적어도 250시간의 고장시간을 갖는다.
- 제 14 항에 있어서,상기 분획 (A) 및 분획 (B)는 동일한 단일 활성점 촉매의 존재 하에서 중합되는 것인 파이프의 제조방법.
- 하기 분획 (A) 및 분획 (B)를 포함하는 폴리에틸렌 베이스 수지를 포함하는 폴리에틸렌 조성물의 용도:a. 에틸렌 공중합체의 분획 (A), 및b. 에틸렌 단일- 또는 공중합체의 분획 (B)를 포함하며, 상기 분획 (A)는 상기 분획 (B) 보다 낮은 분자량을 가지고, 상기 폴리에틸렌 베이스 수지는 적어도 분획 (A) 및 (B)의 중합반응 내 단일 활성점 촉매(SSC)를 사용하는 중합과정에 의해 제조되며,상기 베이스 수지는(i) 940kg/m3 이하의 밀도,및(ii) 190℃/5kg에서 적어도 0.20g/10분의 MFR5를 가지고,상기 폴리에틸렌 조성물은, 95℃ 및 4.3MPa에서 ISO 1167에 따라 측정될 때 적어도 250시간의 고장시간을 갖는다.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06024951.3 | 2006-12-01 | ||
| EP20060024951 EP1927627B1 (en) | 2006-12-01 | 2006-12-01 | Pipe having improved high temperature resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20090085155A true KR20090085155A (ko) | 2009-08-06 |
| KR101037923B1 KR101037923B1 (ko) | 2011-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR20097013715A Active KR101037923B1 (ko) | 2006-12-01 | 2007-11-21 | 향상된 내고열성을 가지는 파이프 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US9017784B2 (ko) |
| EP (1) | EP1927627B1 (ko) |
| KR (1) | KR101037923B1 (ko) |
| CN (2) | CN101541878B (ko) |
| AT (1) | ATE461972T1 (ko) |
| AU (1) | AU2007324879B2 (ko) |
| BR (1) | BRPI0719304A8 (ko) |
| CA (1) | CA2670047C (ko) |
| DE (1) | DE602006013161D1 (ko) |
| ES (1) | ES2339963T3 (ko) |
| PL (1) | PL1927627T3 (ko) |
| RU (1) | RU2426931C2 (ko) |
| WO (1) | WO2008064810A1 (ko) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140074887A (ko) * | 2011-09-09 | 2014-06-18 | 셰브론 필립스 케미컬 컴퍼니 엘피 | 폴리에틸렌 첨가제 조성물 및 이로부터 제조되는 물품 |
| KR20170093124A (ko) * | 2015-06-22 | 2017-08-14 | 아부 다비 폴리머스 씨오. 엘티디 (보르쥬) 엘엘씨. | 늘어짐 및 압출 특성이 향상된 배관 응용을 위한 폴리에틸렌 조성물 |
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| EP1674490A1 (en) * | 2004-12-23 | 2006-06-28 | Borealis Technology Oy | Copolymer |
| US7754834B2 (en) | 2007-04-12 | 2010-07-13 | Univation Technologies, Llc | Bulk density promoting agents in a gas-phase polymerization process to achieve a bulk particle density |
| EP2130859A1 (en) | 2008-06-02 | 2009-12-09 | Borealis AG | Polymer compositions having improved homogeneity and odour, a method for making them and pipes made thereof |
| EP2130863A1 (en) * | 2008-06-02 | 2009-12-09 | Borealis AG | High density polymer compositions, a method for their preparation and pressure-resistant pipes made therefrom |
| EP2133367A1 (en) | 2008-06-09 | 2009-12-16 | INEOS Manufacturing Belgium NV | Novel Copolymers |
| WO2010049169A1 (en) | 2008-10-31 | 2010-05-06 | Borealis Ag | Cross-linkable polyethylene resin for pipes made by a single-site catalyst |
| US20110268902A1 (en) * | 2008-10-31 | 2011-11-03 | Borealis Ag | Multimodal polymer |
| CA2741717C (en) * | 2008-10-31 | 2017-05-09 | Borealis Ag | Multimodal polymer |
| US10082228B2 (en) * | 2008-10-31 | 2018-09-25 | Borealis Ag | Cross-linked polyethylene pipe |
| CN102597020B (zh) | 2009-11-11 | 2014-07-23 | 博瑞立斯有限公司 | 包含以高压方法生产的聚烯烃的聚合物组合物,高压方法和制品 |
| DE102012101854A1 (de) * | 2012-03-06 | 2013-09-12 | Rehau Ag + Co | Verwendung eines Polymermaterials |
| ES2660121T3 (es) * | 2013-12-20 | 2018-03-20 | Borealis Ag | Composición de polietileno con alta flexibilidad y resistencia a altas temperaturas, adecuada para aplicaciones en tubos |
| CN103980611A (zh) * | 2014-05-12 | 2014-08-13 | 惠州市沃特新材料有限公司 | 一种汽车膨胀水箱用聚丙烯组合物及其制备方法 |
| EP3088458B2 (en) * | 2015-04-27 | 2022-10-05 | Abu Dhabi Polymers Company Limited (Borouge) L.L.C. | Polyethylene composition suitable for pipe applications |
| WO2017207493A1 (en) | 2016-05-31 | 2017-12-07 | Borealis Ag | Polymer composition and a process for production of the polymer composition |
| WO2018089195A1 (en) | 2016-11-08 | 2018-05-17 | Univation Technologies, Llc | Bimodal polyethylene |
| CN108503935B (zh) * | 2017-02-28 | 2021-04-13 | 中国石油化工股份有限公司 | 易加工耐热聚乙烯组合物及其制备方法 |
| SG11202001172PA (en) | 2017-08-28 | 2020-03-30 | Univation Tech Llc | Bimodal polyethylene |
| ES3065684T3 (en) | 2017-09-11 | 2026-05-07 | Univation Tech Llc | Carbon black-containing bimodal polyethylene composition |
| BR112020018814B1 (pt) | 2018-03-28 | 2023-12-12 | Univation Technologies, Llc | Composição de polietileno bimodal, método para produzir uma composição de polietileno bimodal, artigo fabricado e tampa ou fecho de garrafa |
| EP3887411A1 (en) * | 2018-11-29 | 2021-10-06 | Borealis AG | Polymer composition and process for making the same |
| CN115335448B (zh) * | 2020-03-30 | 2025-02-28 | Sabic环球技术有限责任公司 | 用于浆料运输管的热塑性材料 |
| WO2022072223A1 (en) | 2020-09-30 | 2022-04-07 | Univation Technologies, Llc | Bimodal polyethylene copolymers for pe-80 pipe applications |
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| SE513632C2 (sv) | 1998-07-06 | 2000-10-09 | Borealis Polymers Oy | Multimodal polyetenkomposition för rör |
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| EP1041113A1 (en) * | 1999-03-30 | 2000-10-04 | Fina Research S.A. | Polyolefins and uses thereof |
| EP1146078B1 (en) * | 2000-04-13 | 2009-12-23 | Borealis Technology Oy | Polymer composition for pipes |
| CN100362049C (zh) * | 2001-08-31 | 2008-01-16 | 陶氏环球技术公司 | 多峰聚乙烯材料 |
| ES2274413T3 (es) * | 2004-03-12 | 2007-05-16 | Borealis Technology Oy | Tuberia a presion de lldpe. |
| PL1764389T3 (pl) * | 2005-09-15 | 2008-10-31 | Borealis Tech Oy | Rura bezciśnieniowa zawierająca kompozycję multimodalnego polietylenu z wypełniaczem nieograniczonym |
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2006
- 2006-12-01 DE DE200660013161 patent/DE602006013161D1/de active Active
- 2006-12-01 EP EP20060024951 patent/EP1927627B1/en active Active
- 2006-12-01 AT AT06024951T patent/ATE461972T1/de not_active IP Right Cessation
- 2006-12-01 ES ES06024951T patent/ES2339963T3/es active Active
- 2006-12-01 PL PL06024951T patent/PL1927627T3/pl unknown
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2007
- 2007-11-21 RU RU2009120116A patent/RU2426931C2/ru active
- 2007-11-21 AU AU2007324879A patent/AU2007324879B2/en not_active Ceased
- 2007-11-21 WO PCT/EP2007/010093 patent/WO2008064810A1/en not_active Ceased
- 2007-11-21 KR KR20097013715A patent/KR101037923B1/ko active Active
- 2007-11-21 CA CA 2670047 patent/CA2670047C/en active Active
- 2007-11-21 US US12/517,107 patent/US9017784B2/en active Active
- 2007-11-21 CN CN2007800437558A patent/CN101541878B/zh active Active
- 2007-11-21 CN CN2012103431664A patent/CN102898719A/zh active Pending
- 2007-11-21 BR BRPI0719304A patent/BRPI0719304A8/pt not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140074887A (ko) * | 2011-09-09 | 2014-06-18 | 셰브론 필립스 케미컬 컴퍼니 엘피 | 폴리에틸렌 첨가제 조성물 및 이로부터 제조되는 물품 |
| KR20170093124A (ko) * | 2015-06-22 | 2017-08-14 | 아부 다비 폴리머스 씨오. 엘티디 (보르쥬) 엘엘씨. | 늘어짐 및 압출 특성이 향상된 배관 응용을 위한 폴리에틸렌 조성물 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2670047C (en) | 2013-01-08 |
| BRPI0719304A2 (pt) | 2014-02-04 |
| AU2007324879A1 (en) | 2008-06-05 |
| US9017784B2 (en) | 2015-04-28 |
| DE602006013161D1 (de) | 2010-05-06 |
| EP1927627B1 (en) | 2010-03-24 |
| US20100055366A1 (en) | 2010-03-04 |
| BRPI0719304A8 (pt) | 2017-12-26 |
| EP1927627A1 (en) | 2008-06-04 |
| RU2009120116A (ru) | 2011-01-10 |
| RU2426931C2 (ru) | 2011-08-20 |
| CN102898719A (zh) | 2013-01-30 |
| ATE461972T1 (de) | 2010-04-15 |
| ES2339963T3 (es) | 2010-05-27 |
| CN101541878A (zh) | 2009-09-23 |
| PL1927627T3 (pl) | 2010-09-30 |
| AU2007324879B2 (en) | 2010-07-29 |
| CN101541878B (zh) | 2013-05-29 |
| CA2670047A1 (en) | 2008-06-05 |
| WO2008064810A1 (en) | 2008-06-05 |
| KR101037923B1 (ko) | 2011-06-01 |
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