JP5408391B2 - 低温性能に優れた管ねじ継手 - Google Patents
低温性能に優れた管ねじ継手 Download PDFInfo
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- JP5408391B2 JP5408391B2 JP2013519304A JP2013519304A JP5408391B2 JP 5408391 B2 JP5408391 B2 JP 5408391B2 JP 2013519304 A JP2013519304 A JP 2013519304A JP 2013519304 A JP2013519304 A JP 2013519304A JP 5408391 B2 JP5408391 B2 JP 5408391B2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
-
- C—CHEMISTRY; METALLURGY
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- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
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- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/08—Casing joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16L15/001—Screw-threaded joints; Forms of screw-threads for such joints with conical threads
- F16L15/004—Screw-threaded joints; Forms of screw-threads for such joints with conical threads with axial sealings having at least one plastically deformable sealing surface
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- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
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- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
- F16L15/009—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with axial sealings having at least one plastically deformable sealing surface
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/18—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings
- F16L58/182—Protection of pipes or pipe fittings against corrosion or incrustation specially adapted for pipe fittings for screw-threaded joints
-
- C—CHEMISTRY; METALLURGY
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- C10M2205/022—Ethene
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- C10M2205/0225—Ethene used as base material
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- C—CHEMISTRY; METALLURGY
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- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
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- C10M2209/062—Vinyl esters of saturated carboxylic or carbonic acids, e.g. vinyl acetate
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- C10N2080/00—Special pretreatment of the material to be lubricated, e.g. phosphatising or chromatising of a metal
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Plasma & Fusion (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Lubricants (AREA)
- Laminated Bodies (AREA)
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Description
2)被膜が前記共重合体粒子と固体潤滑剤とを組み合わせて含有すると耐焼付き性がさらに向上する;
3)被膜の基剤(マトリックス)となる熱可塑性ポリマーとしてはポリオレフィン樹脂もしくはエチレン−酢酸ビニル共重合樹脂が、固体潤滑剤としては黒鉛が好ましい。
本発明では、管ねじ継手を構成するピンとボックスの少なくとも一方の接触表面に、熱可塑性固体潤滑被膜を形成する。この固体潤滑被膜には、ねじ継手による鋼管同士の締結の際において、低・温暖・熱帯地域(−20℃〜+50℃)はもとより、特に極低温地域(−60℃〜−20℃)においても、締結初期のメークアップトルクが高くなってノーショルダーを起こしたり、ねじ緩め初期のブレイクアウトトルクが高くなったりするということがなく、それにより焼付きを十分に防止でき、かつ保管時の発錆を防止することが求められる。
(1)滑り易い特定の結晶構造、例えば、六方晶層状結晶構造を有することにより潤滑性を示すもの(例、黒鉛、酸化亜鉛、窒化硼素)、
(2)結晶構造に加えて反応性元素を有することにより潤滑性を示すもの(例、二硫化モリブデン、二硫化タングステン、ふっ素化黒鉛、硫化スズ、硫化ビスマス)、
(3)化学反応性により潤滑性を示すもの(例、或る種のチオ硫酸塩型化合物)、および
(4)摩擦応力下での塑性または粘塑性挙動により潤滑性を示すもの(例、ポリテトラフルオロエチレン<PTFE>およびポリアミド)
に大別される。
上記の熱可塑性固体潤滑被膜を管ねじ継手のピンとボックスの一方(例、ボックス)の接触表面だけに形成した場合、他方(例、ピン)の接触表面は、例えば、後述する下地処理のみであってもよいが、好ましくは防錆性を付与するために、他方の接触表面には固体防食被膜を最上表面処理被膜層として形成する。
管ねじ継手の接触表面であるピンおよびボックスのねじ部やシール部はねじ切りを含む切削加工により形成され、一般にその表面粗さは3〜5μm程度である。接触表面の表面粗さをこれより大きくすると、その上に形成される被膜の密着性を高めることができ、結果として耐焼付き性や耐食性といった性能を改善することができる。そのために、ピンおよびボックスの少なくとも一方の部材、好ましくは両方の部材の接触表面に、被膜形成に先立って、表面粗さを大きくすることができる下地処理を施すことが好ましい。
炭素鋼(C:0.21%、Si:0.25%、Mn:1.1%、P:0.02%、S:0.01%、Cu:0.04%、Ni:0.06%、Cr:0.17%、Mo:0.04%、残部:鉄および不純物)製の管ねじ継手(外径:17.78cm(7インチ)、肉厚:1.036cm(0.408インチ)のピン表面およびボックス表面に、以下のようにして下地処理を施した。
(熱可塑性ポリマー基剤)
・ポリオレフィン樹脂(セメダイン株式会社、HM321、軟化点130℃):21.5%
・エチレン−酢酸ビニル共重合樹脂(セメダイン株式会社、HM221、軟化点105℃):21.5%
・低分子量ポリオレフィン(三井化学、210P、軟化点123℃):42%
(アクリル・シリコーン共重合体粒子)
・日信化学株式会社、シャリーヌR−170S、平均粒径30μm:10%
(固体潤滑剤)
・土状黒鉛(日本黒鉛(株)、青P、平均粒径7μm):5%。
実施例1で使用したのと同じ炭素鋼製の管ねじ継手のピン表面およびボックス表面に、以下のようにして表面処理を施した。
UVランプ出力:4kW、
紫外線波長:260nm。
(熱可塑性ポリマー基剤)
・ポリオレフィン樹脂(セメダイン、HM321、軟化点130℃):22.5%
・エチレン−酢酸ビニル共重合樹脂(セメダイン、HM221、軟化点105℃):22.5%
・低分子量ポリオレフィン(三井化学、210P、融点123℃):45%
(アクリル・シリコーン共重合体粒子)
・日信化学、シャリ−ヌR−170S、平均粒径30μm:5%
(固体潤滑剤)
・土状黒鉛(日本黒鉛、青P、平均粒径7μm):5%。
炭素鋼より焼付きが起こり易い13Cr鋼(C:0.19%、Si:0.25%、Mn:0.9%、P:0.02%、S:0.01%、Cu:0.04%、Ni:0.11%、Cr:13%、Mo:0.04%、残部:鉄および不純物)製の管ねじ継手(外径:24.448cm(9−5/8インチ)、肉厚:1.105cm(0.435インチ)のピン表面およびボックス表面に、以下のようにして表面処理を施した。
UVランプ出力:4kW、
紫外線波長:260nm。
(熱可塑性ポリマー基剤)
・ポリオレフィン樹脂(セメダイン株式会社、HM321、軟化点130℃):20%
・エチレン−酢酸ビニル共重合樹脂(セメダイン株式会社、HM221、軟化点105℃):20%
・低分子量ポリオレフィン(三井化学、210P、融点123℃):40%
(アクリル・シリコーン共重合体粒子)
・日信化学株式会社、シャリ−ヌR−170S、平均粒径30μm:10%
(固体潤滑剤)
・土状黒鉛(日本黒鉛(株)、青P、平均粒径7μm):5%
(防錆剤)
・Caイオン交換シリカ(富士シリシア、サイリシア52Mo):5%。
実施例1で使用したのと同じ炭素鋼製の管ねじ継手のピン表面およびボックス表面に、以下のようにして表面処理を施した。
UVランプ出力:4kW、
紫外線波長:260nm。
(熱可塑性ポリマー基剤)
・ポリオレフィン樹脂(セメダイン株式会社、HM321、軟化点130℃):22.5%
・エチレン−酢酸ビニル共重合樹脂(セメダイン株式会社、HM221、軟化点105℃):22.5%
・低分子量ポリオレフィン(三井化学、210P、融点123℃):45%
(固体潤滑剤)
・土状黒鉛(日本黒鉛(株)、青P、平均粒径7μm):5%
(防錆剤)
・Caイオン交換シリカ(富士シリシア株式会社のサイリシア52Mo):5%。
実施例1で使用したのと同じ炭素鋼製の管ねじ継手のピン表面およびボックス表面に、以下のようにして表面処理を施した。
UVランプ出力:4kW、
紫外線波長:260nm。
・ポリエチレンホモ重合体(CLARIANT、LICOWAXTM PE 520):9%
・カルナバワックス:15%
・ステアリン酸亜鉛:15%
・液状ポリアルキルメタクリレート(ROHMAX社、VISCOPLEXTM 6-950):5%
・腐食抑制剤(King Industries, Inc.、NA-SULTM Ca/W1935):40%
・ふっ素化黒鉛:3.5%
・酸化亜鉛:1%
・二酸化チタン:5%
・三酸化ビスマス:5%
・シリコーン樹脂粒子(日信化学工業社、KMP-590、平均粒径2μm):1%
・酸化防止剤(Ciba-Geigy社製)
IRGANOXTM L150:0.3%
IRGAFOSTM 168:0.2%。
Claims (18)
- ねじ部とねじ無し金属接触部とを含む接触表面をそれぞれ備えたピンとボックスとから構成される管ねじ継手であって、ピンとボックスの少なくとも一方の接触表面が、最上表面処理被膜層として熱可塑性固体潤滑被膜を有し、この熱可塑性固体潤滑被膜が、熱可塑性ポリマー基剤中に、シリコーン樹脂およびフッ素樹脂から選ばれた樹脂とこれとは別の熱可塑性樹脂との共重合体の粒子を含有する被膜であることを特徴とする、管ねじ継手。
- 前記熱可塑性固体潤滑被膜がピンとボックスの一方の接触表面に形成され、ピンとボックスの他方の接触表面が、最上表面処理被膜層として紫外線硬化樹脂を主成分とする固体防食被膜を有する、請求項1に記載の管ねじ継手。
- 前記共重合体の粒子がアクリル・シリコーン共重合体粒子である、請求項1または2に記載の管ねじ継手。
- 前記アクリル・シリコーン共重合体粒子が平均粒径10〜40μmの球状粒子であり、前記被膜中のその含有量が0.5〜30質量%である、請求項3に記載の管ねじ継手。
- 前記熱可塑性ポリマー基剤がポリオレフィン樹脂およびエチレン−酢酸ビニル共重合樹脂から選ばれた1種または2種以上の樹脂からなる、請求項1または2に記載の管ねじ継手。
- 前記熱可塑性固体潤滑被膜がさらに固体潤滑剤を含有する、請求項1または2に記載の管ねじ継手。
- 前記固体潤滑剤が黒鉛である、請求項6に記載の管ねじ継手。
- 前記熱可塑性固体潤滑被膜の厚みが10〜200μmである、請求項1または2に記載の管ねじ継手。
- 前記固体防食被膜の厚みが5〜50μmである、請求項2に記載の管ねじ継手。
- 油井管の締結に使用される、請求項1または2に記載の管ねじ継手。
- (1)熱可塑性ポリマー基剤材料と、(2)シリコーン樹脂およびフッ素樹脂から選ばれた樹脂と別の熱可塑性樹脂との共重合体の粒子、とを含有することを特徴とする、管ねじ継手に熱可塑性固体潤滑被膜を形成するための組成物。
- 前記共重合体の粒子がアクリル・シリコーン共重合体粒子である、請求項11に記載の組成物。
- 前記アクリル・シリコーン共重合体粒子が、平均粒径10〜40μmの球状粒子であり、その含有量が組成物全固形分に対して0.5〜30質量%である、請求項12に記載の組成物。
- 前記熱可塑性ポリマー基剤材料が、ポリオレフィン樹脂およびエチレン−酢酸ビニル共重合樹脂から選ばれた1種または2種以上である、請求項11〜13のいずれかに記載の組成物。
- さらに固体潤滑剤を含有する、請求項11〜14のいずれかに記載の組成物。
- 前記固体潤滑剤が黒鉛である、請求項15に記載の組成物。
- ねじ部とねじ無し金属接触部とを有する接触表面をそれぞれ備えたピンとボックスとから構成され、表面処理被膜層を有する管ねじ継手の製造方法であって、ピンおよびボックスの少なくとも一方の接触表面に、熱可塑性ポリマー基剤が溶融状態にある請求項11〜16のいずれかに記載の組成物を塗布した後、冷却することによって、該接触表面上に最上表面処理被膜層として固体潤滑被膜を形成することを特徴とする、管ねじ継手の製造方法。
- 前記固体潤滑被膜をピンとボックスの一方の接触表面上に形成し、ピンとボックスの他方の接触表面には、紫外線硬化型樹脂を主成分とする組成物の塗布と紫外線照射により、最上表面処理被膜層として固体防食被膜を形成する、請求項17に記載の方法。
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JP2013519304A JP5408391B2 (ja) | 2010-11-05 | 2011-11-04 | 低温性能に優れた管ねじ継手 |
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JP2010248789 | 2010-11-05 | ||
JP2013519304A JP5408391B2 (ja) | 2010-11-05 | 2011-11-04 | 低温性能に優れた管ねじ継手 |
PCT/JP2011/076018 WO2012060474A1 (en) | 2010-11-05 | 2011-11-04 | Tubular threaded joint having improved low temperature performance |
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JP2013545940A JP2013545940A (ja) | 2013-12-26 |
JP5408391B2 true JP5408391B2 (ja) | 2014-02-05 |
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US (1) | US9169951B2 (ja) |
EP (1) | EP2635834B1 (ja) |
JP (1) | JP5408391B2 (ja) |
CN (1) | CN103299118B (ja) |
AR (1) | AR083782A1 (ja) |
AU (1) | AU2011324338B2 (ja) |
BR (1) | BR112013011120A2 (ja) |
CA (1) | CA2815791C (ja) |
EA (1) | EA023140B1 (ja) |
ES (1) | ES2588441T3 (ja) |
MX (1) | MX336521B (ja) |
MY (1) | MY158833A (ja) |
PL (1) | PL2635834T3 (ja) |
UA (1) | UA104975C2 (ja) |
WO (1) | WO2012060474A1 (ja) |
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UA112576C2 (uk) * | 2012-06-07 | 2016-09-26 | Ніппон Стіл Енд Сумітомо Метал Корпорейшн | Нарізне з'єднання для сталевої труби |
US20140127423A1 (en) * | 2012-11-07 | 2014-05-08 | Dana Automotive Systems Group, Llc | Method for preventing corrosion between two workpieces |
FR3000168B1 (fr) * | 2012-12-21 | 2015-01-02 | Vallourec Mannesmann Oil & Gas | Ensemble pour la realisation d'un joint filete tubulaire resistant au grippage |
US10336962B2 (en) * | 2014-03-20 | 2019-07-02 | Nippon Steel & Sumitomo Metal Corporation | Composition for solid lubricating coating, threaded connection for pipe or tube including the solid lubricating coating formed from the composition, and method of producing the threaded connection |
AR100804A1 (es) * | 2014-06-23 | 2016-11-02 | Nippon Steel & Sumitomo Metal Corp | Conexión roscada para tuberías de la industria del petróleo y composición para recubrimiento fotocurable |
AT516684B1 (de) | 2015-01-13 | 2018-08-15 | Voestalpine Tubulars Gmbh & Co Kg | Lösbare Gewindeverbindung mit asymmetrischer Beschichtung |
CN114543379A (zh) * | 2015-03-30 | 2022-05-27 | 开利公司 | 低油制冷剂和蒸汽压缩*** |
US11781682B2 (en) * | 2015-04-16 | 2023-10-10 | Krzysztof Jan Wajnikonis | Enhancements of mechanical connector technology |
FR3035476B1 (fr) * | 2015-04-23 | 2017-04-28 | Vallourec Oil & Gas France | Joint filete tubulaire dote d'un revetement metallique sur le filetage et la portee d'etancheite |
WO2017047722A1 (ja) * | 2015-09-18 | 2017-03-23 | 新日鐵住金株式会社 | 組成物、その組成物から形成された固体潤滑被膜を備えた管用ねじ継手、及び、その管用ねじ継手の製造方法 |
WO2017127191A1 (en) * | 2016-01-21 | 2017-07-27 | Baker Hughes Incorporated | Well screens and methods to reduce screen plugging |
RU2668582C1 (ru) * | 2017-06-08 | 2018-10-02 | Семён Михайлович Блажнов | Способ визуального контроля свинчивания нефтепромысловых труб. |
CN108533220A (zh) * | 2018-02-26 | 2018-09-14 | 中国石油天然气股份有限公司 | 一种油田用油套管外防腐喷砂除锈丝扣保护装置及方法 |
RU2687718C1 (ru) * | 2018-06-07 | 2019-05-15 | Семён Михайлович Блажнов | Способ визуального контроля свинчивания муфтового соединения нефтегазопромысловых труб |
CN110529056B (zh) * | 2019-09-05 | 2020-09-22 | 大庆华油石油科技开发有限公司 | 一种用于采油井中的可伸缩油管短接 |
CN111139124B (zh) * | 2019-12-31 | 2022-06-07 | 湖北回天新材料股份有限公司 | 预涂型高温抗咬合剂及其制备方法和应用 |
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EP1844255B2 (en) | 2005-01-13 | 2018-07-04 | Nippon Steel & Sumitomo Metal Corporation | Threaded joint for steel pipes |
RU2360174C1 (ru) * | 2005-03-29 | 2009-06-27 | Сумитомо Метал Индастриз, Лтд. | Резьбовое соединение для стальных труб |
US7883118B2 (en) * | 2005-03-29 | 2011-02-08 | Sumitomo Metal Industries, Ltd. | Threaded joint for steel pipes |
FR2892174B1 (fr) | 2005-10-14 | 2007-12-28 | Vallourec Mannesmann Oil Gas F | Element filete tubulaire muni d'un revetement protecteur sec |
JP2007224234A (ja) * | 2006-02-27 | 2007-09-06 | Du Pont Mitsui Polychem Co Ltd | アクリル・シリコーン共重合体含有樹脂組成物からなるフィルム又はシート及び該樹脂組成物の層を有する積層体 |
AU2008332419B2 (en) | 2007-12-04 | 2012-08-09 | Nippon Steel Corporation | Threaded joint for pipes |
FR2937046B1 (fr) * | 2008-10-15 | 2012-10-19 | Vallourec Mannesmann Oil & Gas | Composition de lubrification a coefficient de frottement adaptable, pour un element filete d'un composant de joint filete tubulaire |
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2011
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- 2011-11-04 JP JP2013519304A patent/JP5408391B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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CA2815791A1 (en) | 2012-05-10 |
MX336521B (es) | 2016-01-21 |
CA2815791C (en) | 2016-04-12 |
UA104975C2 (uk) | 2014-03-25 |
AU2011324338B2 (en) | 2015-09-03 |
BR112013011120A2 (pt) | 2016-08-02 |
US9169951B2 (en) | 2015-10-27 |
AU2011324338A1 (en) | 2013-06-06 |
EP2635834B1 (en) | 2016-07-20 |
EP2635834A4 (en) | 2014-06-18 |
JP2013545940A (ja) | 2013-12-26 |
MY158833A (en) | 2016-11-15 |
WO2012060474A1 (en) | 2012-05-10 |
EP2635834A1 (en) | 2013-09-11 |
PL2635834T3 (pl) | 2017-01-31 |
EA023140B1 (ru) | 2016-04-29 |
AR083782A1 (es) | 2013-03-20 |
EA201390652A1 (ru) | 2013-09-30 |
CN103299118A (zh) | 2013-09-11 |
ES2588441T3 (es) | 2016-11-02 |
US20130277961A1 (en) | 2013-10-24 |
CN103299118B (zh) | 2015-04-22 |
MX2013005089A (es) | 2014-03-12 |
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