公开(公告)号：US11905178B2

公开(公告)日：2024-02-20

申请号：US18254671

申请日：2021-12-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Markus E. Hirschberg ,  Klaus Hintzer ,  Thomas W. Schoettle ,  Arne Thaler ,  Achim Schmidt-Rodenkirchen ,  Thorsten Gerdes ,  Konstantin Mierdel

IPC: C01B7/19 ,  C01B32/50 ,  C01B32/40

CPC classification number: C01B7/196 ,  C01B32/40 ,  C01B32/50

Abstract: Methods of converting a variety of fluorinated materials into anhydrous hydrogen fluoride are described. The methods include thermally decomposing the fluorinated materials into a gaseous effluent comprising hydrogen fluoride and carbon dioxide. This gaseous effluent is then treated with carbon at a temperature of at least 830° C., converting the carbon dioxide to carbon monoxide (CO) and producing a gaseous product comprising the hydrogen fluoride, which can be condensed to generate anhydrous hydrogen fluoride. These methods can also be used to convert water contained in the gaseous effluent into hydrogen.

公开(公告)号：US11377510B2

公开(公告)日：2022-07-05

申请号：US16646638

申请日：2018-09-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lisa P. Chen ,  Gregg D. Dahlke ,  Denis Duchesne ,  Steven J. Hamrock ,  Klaus Hintzer ,  Markus E. Hirschberg ,  Arne Thaler ,  Tilman C. Zipplies

IPC: C08F214/26 ,  C08F2/10 ,  C08F8/12 ,  C08F214/18 ,  C08J5/22 ,  C08F8/44 ,  C09D11/52 ,  H01M8/10 ,  H01M4/86 ,  C08F216/14 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/1023

Abstract: The copolymer includes divalent units represented by formula —[CF2—CF2]—, divalent units represented by formula: (I), and one or more divalent units independently represented by formula: (II) When Z is hydrogen, the copolymer has an alpha transition temperature of up to 100 ?C. The copolymer has an —SO3Z equivalent weight in a range from 300 to 1400, and a variation of the copolymer in which —SO3Z is replaced with —SO2F has a melt flow index of up to 80 grams per ten minutes measured at a temperature of 265° C. and at a support weight of 5 kg. A catalyst ink or polymer electrolyte membrane including the copolymer are also provided.

公开(公告)号：US10093820B2

公开(公告)日：2018-10-09

申请号：US14891566

申请日：2014-05-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

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

IPC: C08K5/07 ,  C11D3/37 ,  C09D127/18 ,  C08J3/03 ,  C08J3/05 ,  C08F6/16 ,  C08F6/20 ,  C08K5/06 ,  C08K5/41 ,  C08K5/42 ,  C08K5/521 ,  C09D105/00 ,  C08K5/053 ,  C08K5/1545

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

公开(公告)号：US20180273663A1

公开(公告)日：2018-09-27

申请号：US15762267

申请日：2016-09-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gregg D. Dahlke ,  Denis Duchesne ,  Klaus Hintzer ,  Markus E. Hirschberg ,  Kai H. Lochhaas ,  Arne Thaler ,  Tilman C. Zipplies

IPC: C08F214/26 ,  C08F8/22 ,  H01M8/1004 ,  H01M8/1039 ,  H01M4/86

CPC classification number: C08F214/262 ,  C08F8/22 ,  C09D127/18 ,  C09D127/24 ,  H01M4/8668 ,  H01M8/1004 ,  H01M8/1039 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02P70/56

Abstract: A method of making a copolymer is disclosed. The method includes copolymerizing components including tetrafluoroethylene and a compound represented by formula CF2═CF—O—(CF2)a—SO2—X, wherein “a” is a number from 1 to 4, and X is —NZH, —NZ—SO2—(CF2)1-6—SO2X′, or —OZ, wherein Z is independently a hydrogen, an alkali metal cation, or a quaternary ammonium cation, and wherein X is independently —NZH or —OZ. The components include at least 60 mole % of tetrafluoroethylene based on the total amount of components. A copolymer prepared by the method is also provided. A method of making a membrane using the copolymer is also provided. The present disclosure also provides a polymer electrolyte membrane that includes a copolymer made by the method and a membrane electrode assembly that includes such a polymer electrolyte membrane.