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公开(公告)号：EP4438632A1
公开(公告)日：2024-10-02
申请号：EP23305433.7
申请日：2023-03-29
申请人： ARKEMA FRANCE
发明人： GOLDBACH, James , ROUSSELLE, Brice , LABOUR, Thomas , FIORIO, Gaelle , BONNET, Anthony , ALLARD BRETON, Béatrice , BRUEL, Stéphanie
摘要： The invention relates to a process that results in a vinylidene fluoride polymer composition with a reduced level of residual impurities, notably total oxidizable carbon (TOC) and fluoride ions. Such improvements can be accomplished in a cost-effective manner through the combination of a polymer recipe that uses a low amount of or no surfactants and the isolation of the polymer, especially in a dewatering extruder. The invention also relates to the use of such a vinylidene fluoride polymer for conveying ultrapure water in high purity applications.
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公开(公告)号：EP3966259A1
公开(公告)日：2022-03-16
申请号：EP20802619.5
申请日：2020-05-07
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3.发明公开
公开(公告)号：EP3960777A1
公开(公告)日：2022-03-02
申请号：EP20795104.7
申请日：2020-04-27
发明人： HAYASHI, Tadao , TAIRA, Takahiro , YOSHIDA, Hirotoshi , OKUI, Chiaki , YAMANAKA, Taku , KATO, Taketo
IPC分类号： C08F6/16 , C08K5/095 , C08K5/098 , C08L27/12 , B01J20/26 , B01J20/28 , B01J41/05 , B01J41/14 , B01J47/018
摘要： The present invention provides a method for producing a purified fluoropolymer aqueous dispersion, comprising: (A) bringing a fluoropolymer aqueous dispersion obtained using a hydrocarbon surfactant into contact with an anion exchange resin A or a synthetic adsorbent,
wherein the anion exchange resin A has:
an ion-exchange group represented by the following general formula (A1):
-N + R 1 R 2 R 3 X -
wherein R 1 , R 2 , and R 3 are the same as or different from each other, and are each a hydrogen atom or an organic group, and at least one of R 1 , R 2 , and R 3 is an organic group having 3 or more carbon atoms; and X is a counter ion; or
an ion-exchange group represented by the following general formula (A2):
-NR 4 R 5
wherein R 4 and R 5 are the same as or different from each other, and are each a hydrogen atom or an organic group, and at least one of R 4 and R 5 is an organic group having 2 or more carbon atoms.-
公开(公告)号：EP3790913A1
公开(公告)日：2021-03-17
申请号：EP19732450.2
申请日：2019-05-08
发明人： HINTZER, Klaus , JOCHUM, Florian D. , KOENIGSMANN, Herbert , SCHROOTEN, Jens , ZIPPLIES, Tilman C. , WEILANDT, Karl D.
IPC分类号： C08F214/26 , C08F6/16
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公开(公告)号：EP2882783B1
公开(公告)日：2020-01-01
申请号：EP13745037.5
申请日：2013-07-30
申请人： BASF SE
发明人： FILGES, Ulrich , POTZOLLI, Bernd de , WOLFF, Andy
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6.发明授权
公开(公告)号：EP2876116B1
公开(公告)日：2019-02-20
申请号：EP13819986.4
申请日：2013-07-17
申请人： Kuraray Co., Ltd.
IPC分类号： C08F2/20 , C08F8/12 , C08F18/04 , C08F118/08 , C08F14/06 , C08F18/00 , C08F114/06 , C08F214/18 , C08L29/04 , C08F6/16 , C08F18/08 , C08F16/06 , C08F2/38 , C08F116/06
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公开(公告)号：EP3423188A1
公开(公告)日：2019-01-09
申请号：EP17714932.5
申请日：2017-03-02
IPC分类号： B01J41/14 , B01J47/00 , B01J49/00 , B01J20/26 , C07C51/08 , B01J41/05 , C08F6/16 , C02F1/28 , C02F1/42
CPC分类号： B01J41/05 , B01J20/267 , B01J47/02 , C02F1/42 , C02F2001/422 , C02F2101/36 , C07C51/08 , C07C51/47 , C07C55/32 , C07C59/135 , C08F6/16
摘要： Provided are methods for removing a perfluorinated alkanoic acid from solutions containing the perfluorinated alkanoic acid and a fluorinated alkoxy acid. These methods include contacting the first solution with an anion-exchange resin to produce a second solution and a resultant anion-exchange resin having perfluorinated alkanoic acid adsorbed thereto, wherein the perfluorinated alkanoic acid is present in the first solution at a first concentration and is present in the second solution at a second concentration which is lower than the first concentration, and separating the second solution from the resultant anion-exchange resin.
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公开(公告)号：EP3150642A1
公开(公告)日：2017-04-05
申请号：EP15798799.1
申请日：2015-05-28
申请人： LG Chem, Ltd.
发明人： HEO, Chang Hoe , JOO, Eun Jung , SHIN, Dae Young , SHIN, Joon Ho
摘要： The present application relates to a method for removing an unreacted vinyl chloride monomer (VCM) in polyvinyl chloride (PVC). According to an illustrative stripping apparatus and a stripping method using the stripping apparatus of the present application, in a stripping process using steam, a temperature difference between a raw material including a target substance to be removed and steam is minimized to suppress foam generation in the stripping process, thereby increasing efficiency of removing the target substance to be removed, particularly, an unreacted VCM in PVC. In addition, a cleansing cycle to remove foams generated in the stripping apparatus can be reduced, thereby not only securing economic feasibility of the process, but also preventing degradation in quality of a final product that may occur when an antifoamer to remove the foams is used.
摘要翻译： 本申请涉及在聚氯乙烯（PVC）中除去未反应的氯乙烯单体（VCM）的方法。 根据使用本申请的剥离装置的说明性剥离装置和剥离方法，在使用蒸汽的汽提过程中，包括待除去的目标物质的原料与蒸汽之间的温差最小化，以抑制在 剥离过程，从而提高去除要除去的目标物质的效率，特别是PVC中未反应的VCM。 此外，可以减少除去汽提装置中产生的泡沫的清洁循环，从而不仅确保了该方法的经济可行性，而且防止了当使用消泡剂除去泡沫时可能发生的最终产品的质量下降 。
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公开(公告)号：EP3075749A1
公开(公告)日：2016-10-05
申请号：EP14866065.7
申请日：2014-10-23
发明人： KIM, Sinyoung , LIM, Seong Soo , LEE, Suran , KIM, Jaeho , SHIN, Sang Hong
CPC分类号： C08F6/005 , C08C4/00 , C08F210/14 , C08J11/02 , C08J2323/08 , C08J2323/20 , Y02P20/582 , C08L23/0815 , C08F2/34 , C08F2500/08 , C08L23/04
摘要： Provided is a method of purifying polyolefin, the method including the step of contacting linear low-density polyethylene synthesized by a gas phase polymerization reaction with a purge gas containing an ethylene gas and an inert gas in a purge bin. According to this purification method, residual alkene monomers with high carbon numbers may be removed in a simpler and more efficient manner.
摘要翻译： 提供一种聚烯烃的净化方法，该方法包括使通过气相聚合反应合成的线性低密度聚乙烯与含有乙烯气体和惰性气体的吹扫气体接触的步骤。 根据该纯化方法，可以以更简单，更有效的方式除去具有高碳数的残留烯烃单体。
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10.发明公开METHOD FOR PRODUCING AQUEOUS FLUORINE-CONTAINING POLYMER DISPERSING ELEMENT, AND PURIFIED AQUEOUS FLUORINE-CONTAINING POLYMER DISPERSING ELEMENT 审中-公开方法制备含水FLUOR含POLYMERDISPERGIERELEMENTS和纯化含的氟POLYMERDISPERGIERELEMENT
公开(公告)号：EP2853548A4
公开(公告)日：2016-03-16
申请号：EP13793904
申请日：2013-05-22
申请人： DAIKIN IND LTD
IPC分类号： C08F6/16 , B01D71/32 , B01J39/18 , C08F2/24 , C08F6/02 , C08F8/12 , C08F8/26 , C08F14/18 , C08F216/14
CPC分类号： C08F216/1466 , B01D69/02 , B01D71/32 , B01D2325/14 , C08F2/24 , C08F6/02 , C08F6/16 , C08F8/12 , C08F8/26 , C08F14/18 , C08F2216/1475 , H01M8/1025 , H01M8/1039 , C08L27/12
摘要： An object of the present invention is to provide methods for preparing a fluoropolymer aqueous dispersion that allow efficient removal of iron ions from fluoropolymer aqueous dispersions, and purified fluoropolymer aqueous dispersions. The present invention relates to a method for preparing a fluoropolymer aqueous dispersion, including: step (A) of preparing a fluoropolymer aqueous dispersion comprising a fluoropolymer having at least one selected from the group consisting of - SO 2 Y and -COOR (wherein Y is a halogen, and R is a C1 to C4 alkyl) by emulsion polymerization; step (B) of heating the fluoropolymer aqueous dispersion to 50°C or higher; and step (C) of contacting the fluoropolymer aqueous dispersion with an ion exchange resin for cation exchange after step (B), thereby providing a purified fluoropolymer aqueous dispersion, the fluoropolymer aqueous dispersion being adjusted to pH 7 or lower from the end of the polymerization in step (A) to the end of step (C).
摘要翻译： 本发明的一个目的是提供一种用于制备氟聚合物分散体wässrige并允许从含氟聚合物非水性分散体，并纯化氟聚合物非水性分散体有效地除去铁离子的提供方法。 本发明涉及一种用于制备氟聚合物分散体wässrige，包括：制备一种氟聚合物水性分散体，其包括选自下组的至少一个由具有含氟聚合物的步骤（A） - SO 2 Y和COOR（worin Y是 卤素，并且R为C1-C4烷基）通过乳液聚合; 加热含氟聚合物分散体wässrige至50℃或更高的工序（B）; 与离子交换树脂接触，含氟聚合物分散体wässrige为阳离子交换AfterStep的（B），由此提供纯化氟聚合物分散wässrige的和步骤（C）中，含氟聚合物分散体wässrige被调节至pH为7或更低从聚合结束 在步骤（A）至步骤（C）结束。
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