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1.发明申请Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions 审中-公开用于降低含氟聚合物水分散体中氟化表面活性剂的量的方法公开(公告)号：US20050070633A1
公开(公告)日：2005-03-31
申请号：US10992961
申请日：2004-11-19
申请人： Rebekka Epsch , Klaus Hintzer , Gernot Lohr , Werner Schwertfeger
发明人： Rebekka Epsch , Klaus Hintzer , Gernot Lohr , Werner Schwertfeger
摘要： The present invention provides a process of reducing the amount of fluorinated emulsifier in an aqueous fluoropolymer dispersion by contacting the aqueous fluoropolymer dispersion with an anion exchange resin in a non-fixed resin bed, the process comprising: (a) mixing the aqueous fluoropolymer dispersion with an effective amount of a surfactant so as to stabilize the fluoropolymer dispersion while being contacted with the anion exchange resin; (b) contacting the aqueous fluoropolymer dispersion with an anion exchange resin by agitating the aqueous fluoropolymer dispersion with an effective amount of anion exchange resin for a time of less than 4 hours to reduce the amount of fluorinated emulsifier in the aqueous fluoropolymer dispersion to a desired level; and (c) separating the anion exchange resin from the aqueous fluoropolymer dispersion.
摘要翻译： 本发明提供一种通过使含氟聚合物含水分散体与阴离子交换树脂在非固定树脂床中接触来降低含氟聚合物水分散体含量的方法，该方法包括：（a）将含氟聚合物水分散体与 有效量的表面活性剂，以便在与阴离子交换树脂接触的同时稳定含氟聚合物分散体; （b）通过用有效量的阴离子交换树脂搅拌含氟聚合物水分散体少于4小时使含氟聚合物含水分散体与阴离子交换树脂接触，将含氟聚合物水分散体中的氟化乳化剂的量减少到所需的 水平; 和（c）从含氟聚合物含水分散体中分离阴离子交换树脂。
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2.发明授权Process for reducing the amount of fluorinated surfactant in aqueous fluoropolymer dispersions 失效用于降低含氟聚合物水分散体中氟化表面活性剂的量的方法公开(公告)号：US06825250B2
公开(公告)日：2004-11-30
申请号：US10429387
申请日：2003-05-05
申请人： Rebekka Epsch , Klaus Hintzer , Gernot Löhr , Werner Schwertfeger
发明人： Rebekka Epsch , Klaus Hintzer , Gernot Löhr , Werner Schwertfeger
IPC分类号： C08L100
摘要： The present invention provides a process of reducing the amount of fluorinated emulsifier in an aqueous fluoropolymer dispersion by contacting the aqueous fluoropolymer dispersion with an anion exchange resin in a non-fixed resin bed, the process comprising: (a) mixing the aqueous fluoropolymer dispersion with an effective amount of a surfactant so as to stabilize the fluoropolymer dispersion while being contacted with the anion exchange resin; (b) contacting the aqueous fluoropolyrner dispersion with an anion exchange resin by agitating the aqueous fluoropolymer dispersion with an effective amount of anion exchange resin for a time of less than 4 hours to reduce the amount of fluorinated emulsifier in the aqueous fluoropolymer dispersion to a desired level; and (c) separating the anion exchange resin from the aqueous fluoropolymer dispersion.
摘要翻译： 本发明提供一种通过使含氟聚合物含水分散体与阴离子交换树脂在非固定树脂床中接触来降低含氟聚合物水分散体含量的方法，该方法包括：（a）将含氟聚合物水分散体与 有效量的表面活性剂，以便在与阴离子交换树脂接触的同时稳定含氟聚合物分散体;（b）通过用有效量的阴离子交换树脂搅拌含氟聚合物水分散体使其与阴离子交换树脂接触， 少于4小时的时间将含氟聚合物水分散体中的氟化乳化剂的量减少到所需水平; 和（c）从含氟聚合物含水分散体中分离阴离子交换树脂。
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3.发明申请Aqueous fluoropolymer dispersion comprising a melt processible fluoropolymer and having a reduced amount of fluorinated surfactant 审中-公开包含可熔融加工的含氟聚合物并且具有减少量的氟化表面活性剂的含水氟聚合物分散体公开(公告)号：US20050043471A1
公开(公告)日：2005-02-24
申请号：US10933738
申请日：2004-09-03
申请人： Rebekka Epsch , Freidrich Kloos , Gernot Lohr
发明人： Rebekka Epsch , Freidrich Kloos , Gernot Lohr
IPC分类号： C08F2/00 , C08F6/16 , C09D127/12
CPC分类号： C08F6/16 , C09D127/12 , C08L2666/54
摘要： The present invention provides an aqueous fluoropolymer dispersion comprising a melt processible fluoropolymer in an amount of at least 25% by weight based on the weight of the aqueous fluoropolymer dispersion and a fluorinated surfactant having a molecular weight of not more than 1000 g/mol in an amount of not more than 100 ppm, preferably less than 50 ppm, more preferably less than 25 ppm and most preferably less than 10 ppm based on the weight of fluoropolymer solids or being free of said fluorinated surfactant. The aqueous fluoropolymer dispersion has a conductivity of at least 200 μS/cm, preferably at least 500 μS/cm and more preferably at least 1000 μS/cm.
摘要翻译： 本发明提供一种含氟聚合物含水聚合物，其含有至少25重量％的可熔融加工的含氟聚合物，其含量基于含氟聚合物水分散体的含量和分子量不超过1000g / mol的氟化表面活性剂 相对于含氟聚合物固体的重量或不含所述氟化表面活性剂，其量不超过100ppm，优选小于50ppm，更优选小于25ppm，最优选小于10ppm。 含氟聚合物水分散体的电导率为至少200μS/ cm，优选为至少500μS/ cm，更优选为至少1000μS/ cm。
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4.发明授权Fluoropolymer dispersion containing no or little low molecular weight fluorinated surfactant 有权不含或少量低分子量氟化表面活性剂的含氟聚合物分散体公开(公告)号：US08598267B2
公开(公告)日：2013-12-03
申请号：US11851431
申请日：2007-09-07
IPC分类号： C08L27/12
CPC分类号： C09D127/12 , C08K5/42
摘要： The present invention provides a fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of 10 to 400 nm dispersed in water whereby the dispersion is free of fluorinated surfactant having a molecular weight of less than 1000 g/mol or contains the fluorinated surfactant having a molecular weight of less than 1000 g/mol in an amount of not more than 0.025% by weight based on the total weight of solids in the dispersion. The dispersion further comprises a non-ionic surfactant and an anionic surfactant selected from fluorinated anionic surfactants having a molecular weight of at least 1000 g/mol, non-fluorinated anionic surfactants and mixtures thereof.
摘要翻译： 本发明提供一种氟聚合物分散体，其含有平均粒径为10〜400nm的含氟聚合物颗粒，其分散在水中，由此该分散体不含分子量小于1000g / mol的氟化表面活性剂，或含有具有分子量 重量小于1000g / mol，其量不得大于0.025％（重量），基于分散体中固体的总重量。 分散体还包含非离子表面活性剂和选自分子量至少为1000g / mol的氟化阴离子表面活性剂，非氟化阴离子表面活性剂及其混合物的阴离子表面活性剂。
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5.发明申请FLUOROPOLYMER DISPERSION CONTAINING NO OR LITTLE LOW MOLECULAR WEIGHT FLUORINATED SURFACTANT 有权含有低分子量氟分解表面活性剂的氟聚合物分散体公开(公告)号：US20080287599A1
公开(公告)日：2008-11-20
申请号：US11851431
申请日：2007-09-07
IPC分类号： C08L27/12
CPC分类号： C09D127/12 , C08K5/42
摘要： The present invention provides a fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of 10 to 400 nm dispersed in water whereby the dispersion is free of fluorinated surfactant having a molecular weight of less than 1000 g/mol or contains the fluorinated surfactant having a molecular weight of less than 1000 g/mol in an amount of not more than 0.025% by weight based on the total weight of solids in the dispersion. The dispersion further comprises a non-ionic surfactant and an anionic surfactant selected from fluorinated anionic surfactants having a molecular weight of at least 1000 g/mol, non-fluorinated anionic surfactants and mixtures thereof.
摘要翻译： 本发明提供一种氟聚合物分散体，其含有平均粒径为10〜400nm的含氟聚合物颗粒，其分散在水中，由此该分散体不含分子量小于1000g / mol的氟化表面活性剂，或含有具有分子量 重量小于1000g / mol，其量不得大于0.025％（重量），基于分散体中固体的总重量。 分散体还包含非离子表面活性剂和选自分子量至少为1000g / mol的氟化阴离子表面活性剂，非氟化阴离子表面活性剂及其混合物的阴离子表面活性剂。
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6.发明授权Fluoropolymer dispersions containing no or little low molecular weight fluorinated surfactant 有权不含或少量低分子量氟化表面活性剂的含氟聚合物分散体公开(公告)号：US07279522B2
公开(公告)日：2007-10-09
申请号：US10486860
申请日：2002-08-06
IPC分类号： C08L27/12
CPC分类号： C09D127/12 , C08K5/42
摘要： The present invention provides a fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of 10 to 400 nm dispersed in water whereby the dispersion is free of fluorinated surfactant having a molecular weight of less than 1000 g/mol or contains the fluorinated surfactant having a molecular weight of less than 1000 g/mol in an amount of not more than 0.025% by weight based on the total weight of solids in the dispersion. The dispersion further comprises a non-ionic surfactant and an anionic surfactant selected from fluorinated anionic surfactants having a molecular weight of at least 1000 g/mol, non-fluorinated anionic surfactants and mixtures thereof.
摘要翻译： 本发明提供一种氟聚合物分散体，其含有平均粒径为10〜400nm的含氟聚合物颗粒，其分散在水中，由此该分散体不含分子量小于1000g / mol的氟化表面活性剂，或含有具有分子量 重量小于1000g / mol，其量不得大于0.025％（重量），基于分散体中固体的总重量。 分散体还包含非离子表面活性剂和选自分子量至少为1000g / mol的氟化阴离子表面活性剂，非氟化阴离子表面活性剂及其混合物的阴离子表面活性剂。
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