公开(公告)号：US20190027769A1

公开(公告)日：2019-01-24

申请号：US16082721

申请日：2017-03-06

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Gregg D. Dahlke ,  Denis Duchesne ,  Klaus Hintzer ,  Kai Helmut Lochhaas ,  Arne Thaler ,  Tilman C. Zipplies

IPC分类号： H01M8/1039 ,  H01M4/62 ,  H01M8/1032 ,  C08F214/26

摘要： The copolymer includes divalent units represented by formula: (I), one or more independently selected fluorinated divalent units, and —SO2X end groups. In this formula, b is 2 to 8, c is 0 to 2, and e is 1 to 8. In each SO2X, X is independently F, —NZH, —NZSO2(CF2)1−6SO2X′, —NZ[SO2(CF2)aSO2NZ]1−10SO2X′, or —OZ, wherein Z is a hydrogen, an alkali-metal cation or a quaternary ammonium cation, X′ is independently —NZH or —OZ, and each a is independently 1 to 6. The copolymer has an —SO2X equivalent weight of up to 1000. The method includes copolymerizing components including fluorinated olefin and a compound represented by formula CF2═CF—CF2(O—CbF2b)c—O—(CeF2e)—SO2X′, wherein b, c, and e are as defined above. A method of making a membrane using the copolymer or ionomer is also provided. A polymer electrolyte membrane that includes the copolymer or the ionomer and a membrane electrode assembly that includes such a polymer electrolyte membrane are also provided.

公开(公告)号：US09694333B2

公开(公告)日：2017-07-04

申请号：US15302525

申请日：2015-04-15

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Klaus Hintzer ,  Egon Obermaier ,  Arne Thaler

IPC分类号： C07C51/42 ,  B01F17/00 ,  B01J49/07 ,  B01J49/57 ,  B01J41/12 ,  B01J41/05

CPC分类号： B01F17/0035 ,  B01J41/05 ,  B01J41/12 ,  B01J49/07 ,  B01J49/57 ,  C07C51/47 ,  C07C59/135

摘要： Described herein is a process for recovering a branched, ether-containing fluorinated emulsifier from an anion exchange resin by (1) contacting the anion exchange resin with a recovery fluid to form an eluate, the recovery fluid comprising an ammonium salt, water, and a water-miscible solvent, wherein the fluorinated emulsifier is of the formula: [Rf-(0-R′f)n-0-CF(CF3)-C(0)0-]i M+1; and (2) separating the anion exchange resin from the eluate.

公开(公告)号：US20160122572A1

公开(公告)日：2016-05-05

申请号：US14891566

申请日：2014-05-16

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Tilman C. Zipples ,  Arne Thaler ,  Egon Obermaier ,  Klaus Hintzer ,  Michael C. Dadalas

IPC分类号： C09D127/18 ,  C08K5/41 ,  C08K5/42 ,  C08K5/521 ,  C09D105/00 ,  C08K5/06

CPC分类号： C09D127/18 ,  C08F6/16 ,  C08F6/20 ,  C08J3/03 ,  C08J3/05 ,  C08K5/053 ,  C08K5/06 ,  C08K5/1545 ,  C08K5/41 ,  C08K5/42 ,  C08K5/521 ,  C09D105/00 ,  C08L27/18

摘要： Provided are processes for upconcentrating fluoropolymer dispersions. Also provided are upconcentrated dispersions and substrates coated with such dispersions.

摘要翻译： 提供了富含氟聚合物分散体的方法。 还提供了上层分散体和涂有这种分散体的基材。