公开(公告)号：DE19616160A1

公开(公告)日：1997-10-30

申请号：DE19616160

申请日：1996-04-24

Applicant: HOECHST AG

Inventor： SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: C08J5/22 ,  B01J31/10 ,  B01J35/06 ,  C08G75/02 ,  C08G75/20 ,  C25B9/23 ,  H01M4/88 ,  H01M4/92 ,  H01M8/10 ,  H01M8/1004 ,  B01J39/18 ,  C25B13/08 ,  H01M8/02

Abstract: A process is disclosed for producing a cation-exchanging membrane. An organic polymer with sulphonic acid groups and finely divided electroconductive particles of a catalyst material is introduced into a liquid phase and the resulting suspension is used to coat at least one side of a foil made of a cation exchanger material. The process is characterised in that the organic polymer with sulphonic acid groups is soluble in an aprotic polar solvent and contains units of formulas (Ar X) and (Ar Y) at least partially substituted by sulphonic acid groups. Ar and Ar stand for identical or different bivalent arylene radicals, X stands for oxygen or sulphur and Y stands for a carbonyl, sulphoxide or sulphonyl radical. This material is dissolved in a solvent, a finely divided electroconductive catalyst material is suspended in the solution and a foil which contains a polymer cation exchanger with sulphonic acid groups is coated with this suspension. The still solvent-containing coating is treated with a liquid miscible with the solvent but in which the dissolved cation exchanger material is not soluble, so that pores are formed in the resulting film that coats the membrane.

公开(公告)号：DE19610303A1

公开(公告)日：1997-09-25

申请号：DE19610303

申请日：1996-03-18

Applicant: HOECHST AG

Inventor： CLAUS JOACHIM DR ,  DECKERS GREGOR DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: B01D71/52 ,  C08G65/48 ,  C08J5/22 ,  C09D171/10 ,  C25B13/08 ,  H01M8/1025 ,  H01M8/1065 ,  H01M8/1067 ,  H01M8/1072 ,  C08G61/12 ,  C08L71/00 ,  C09D165/00 ,  H01M8/02

Abstract: Sulphonated aromatic polyether-ketones (PEK) contg. units of formula -Ar-Op-Ar-(CO-Ar')x-O-Arm-CO-Ar'y-O-Arn-CO- (II) are claimed, in which 1-100% of the -O-phenylene-CO- units are substd. with a SO3M gp., sulphonated and unsulphonated -O-phenylene-CO- gps., and sulphonated and unsulphonated -O-phenylene-O- gps. in any sequence. In (II), Ar = p- and/or m-phenylene (p- and/or m-Phe); Ar' = phenylene, naphthylene, biphenylene, anthrylene or other arylene; M = H, NR4 (R = H or 1-4C alkyl) or a metal, pref. an alkali(ne earth) metal or sub-Gp. 8 metal; x, n and m = 0 or 1; y = 0, 1, 2 or 3; and p = 1, 2, 3 or 4. Also claimed are: (i) a process for the prodn. of (II); (ii) a polymeric electrolyte soln. contg. (II); and (iii) a film with a thickness of 5 mu m to 1 mm contg. (II).

公开(公告)号：DE19548423A1

公开(公告)日：1997-06-26

申请号：DE19548423

申请日：1995-12-22

Applicant: HOECHST AG

Inventor： CLAUS JOACHIM DR ,  DECKERS GREGOR DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: B01D71/52 ,  C08G65/48 ,  C08J5/22 ,  C09D171/10 ,  C25B13/08 ,  H01M8/1025 ,  H01M8/1065 ,  H01M8/1067 ,  H01M8/1072 ,  C08G61/12 ,  C09D165/00 ,  H01M8/22

Abstract: Sulphonated aromatic polyether-ketones (PEK) contg. units of formula -Ar-Op-Ar-(CO-Ar')x-O-Arm-CO-Ar'y-O-Arn-CO- (II) are claimed, in which 1-100% of the -O-phenylene-CO- units are substd. with a SO3M gp., sulphonated and unsulphonated -O-phenylene-CO- gps., and sulphonated and unsulphonated -O-phenylene-O- gps. in any sequence. In (II), Ar = p- and/or m-phenylene (p- and/or m-Phe); Ar' = phenylene, naphthylene, biphenylene, anthrylene or other arylene; M = H, NR4 (R = H or 1-4C alkyl) or a metal, pref. an alkali(ne earth) metal or sub-Gp. 8 metal; x, n and m = 0 or 1; y = 0, 1, 2 or 3; and p = 1, 2, 3 or 4. Also claimed are: (i) a process for the prodn. of (II); (ii) a polymeric electrolyte soln. contg. (II); and (iii) a film with a thickness of 5 mu m to 1 mm contg. (II).

公开(公告)号：DE19527435A1

公开(公告)日：1997-01-30

申请号：DE19527435

申请日：1995-07-27

Applicant: HOECHST AG

Inventor： HELMER-METZMANN FREDDY DR ,  SCHLEICHER ANDREAS DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: C08G75/0295 ,  H01M8/0289 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1067 ,  H01M8/1072 ,  C08G75/02 ,  B01D71/66 ,  B01J39/18 ,  C08J5/18 ,  C08J5/22 ,  C08L81/02 ,  C25B13/08 ,  D01F6/76 ,  H01M8/02

Abstract: Polyarylene sulphide sulphonic acid (I) is soluble in polar aprotic solvent.

公开(公告)号：DE19510026A1

公开(公告)日：1996-09-26

申请号：DE19510026

申请日：1995-03-20

Applicant: HOECHST AG

Inventor： CLAUS JOACHIM DR ,  DECKERS GREGOR DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: B01D71/52 ,  C08G61/12 ,  C08G65/48 ,  C08J5/22 ,  C08L71/10 ,  C09D171/10 ,  C25B13/08 ,  H01M8/1025 ,  H01M8/1065 ,  H01M8/1067 ,  H01M8/1072 ,  C08G65/40 ,  C08J3/09 ,  C09D165/00

Abstract: Sulphonated aromatic polyether-ketones (PEK) contg. units of formula -Ar-Op-Ar-(CO-Ar')x-O-Arm-CO-Ar'y-O-Arn-CO- (II) are claimed, in which 1-100% of the -O-phenylene-CO- units are substd. with a SO3M gp., sulphonated and unsulphonated -O-phenylene-CO- gps., and sulphonated and unsulphonated -O-phenylene-O- gps. in any sequence. In (II), Ar = p- and/or m-phenylene (p- and/or m-Phe); Ar' = phenylene, naphthylene, biphenylene, anthrylene or other arylene; M = H, NR4 (R = H or 1-4C alkyl) or a metal, pref. an alkali(ne earth) metal or sub-Gp. 8 metal; x, n and m = 0 or 1; y = 0, 1, 2 or 3; and p = 1, 2, 3 or 4. Also claimed are: (i) a process for the prodn. of (II); (ii) a polymeric electrolyte soln. contg. (II); and (iii) a film with a thickness of 5 mu m to 1 mm contg. (II).

公开(公告)号：DE4447126A1

公开(公告)日：1996-07-04

申请号：DE4447126

申请日：1994-12-29

Applicant: HOECHST AG

Inventor： MERTESDORF PETRA DIPL ING ,  SCHNELLER ARNOLD DR ,  WAGENER REINHARD DR ,  WITTELER HELMUT DR

IPC: C25B9/23 ,  H01M4/92 ,  H01M8/1004 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1067 ,  H01M8/1069 ,  H01M8/1086 ,  B01J31/08 ,  B01J31/10 ,  B01J23/40 ,  B01J23/42 ,  C25B13/04 ,  H01M2/14

Abstract: Membrane electrode composite comprises a membrane contg. a polymeric cation exchanger with carboxylic, phosphonic or sulphonic acid gps., which is soluble in a solvent, and finely-divided metals, catalysing the formation of water from H2 and O2, applied to at least one side of the membrane. The novelty is that the part of the membrane covered with metal is porous but contains no closed pores and the metal can also be present in the pores. Also claimed is a method for making the composite. The membrane is provided with a porous surface by a phase inversion process; treated with a soln. of a reducing agent for H2PtCl6; rinsed to remove reducing agent adhering to the surface; and placed in H2PtCl6 soln., so that Pt is deposited on its surface. Alternatively, the membrane with the porous surface is (partly) converted to salt by treatment with an aq. soln. of a K, Rb, Cs or ammonium salt and then on at least one side with H2PtCl6 to deposit a hardly soluble hexachloroplatinate on the surface, then rinsed and treated with reducing agent, so that Pt is deposited on the surface as firmly adhering aggregates. The non-solvent used in the phase inversion stage is water, opt. mixed with a polar aprotic solvent, or an aliphatic alcohol. After treatment with the first solvent, electroconductive C, opt. charged with metal catalyst, may be applied before rinsing or spraying with a second solvent, which is miscible with the first solvent but is a non-solvent for the membrane.

公开(公告)号：DE19548422A1

公开(公告)日：1997-09-11

申请号：DE19548422

申请日：1995-12-22

Applicant: HOECHST AG

Inventor： BOENSEL HARALD DR ,  CLAUS JOACHIM DR ,  DECKERS GREGOR DR ,  FRANK GEORG DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: C25B9/23 ,  H01G9/00 ,  H01G9/155 ,  H01M4/86 ,  H01M4/88 ,  H01M8/0204 ,  H01M8/0206 ,  H01M8/021 ,  H01M8/0271 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1032 ,  H01M4/94 ,  B32B27/28 ,  B32B15/08 ,  B29C41/08

Abstract: The invention relates to continuously produced material composites, with a uniform degree of production quality, containing (a) at least one layer which contains ion-conducting and/or electron-conducting material and (b) at least one layer which contains one or a plurality of other functional materials which come into close contact with an electron-conducting and/or ion-conducting layer. The relative extent of fluctuation of at least one composite property DELTA x/x, selected from the following group: thickness of the material composite, direct current conductibility, alternating current capacity and surface roughness, is

公开(公告)号：DE19548421A1

公开(公告)日：1997-09-11

申请号：DE19548421

申请日：1995-12-22

Applicant: HOECHST AG

Inventor： BOENSEL HARALD DR ,  CLAUS JOACHIM DR ,  DECKERS GREGOR DR ,  FRANK GEORG DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR ,  ROEMMLER MIKE DR ,  HEINE MICHAEL DR

IPC: C25B9/23 ,  H01M4/90 ,  H01M4/92 ,  H01M8/0213 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1039 ,  H01M4/88 ,  B29C43/24

Abstract: A process for producing laminates which contain at least one centrally arranged, ion-conductive membrane which is, at least over a substantial part of its two mutually opposite flat faces, electrically conductively bonded to at least one catalytically active substance and to at least one two-dimensional, gas-permeable, electron-conductive contacting material, the bonding of at least two of the said components having been effected by lamination. The process comprises carrying out the bonding of the ion-conductive membrane, of the catalytically active substance and of the electron-conductive contacting material continuously. The ion-conductive membrane is brought together with at least the electron-conductive contacting material in the exact position by means of transport and feeding devices and the two components are laminated and bonded to one another by pressing them together. The range of variation in the a.c. resistances of the laminates produced by the process according to the invention is ±10%. The laminates are particularly suitable for use in fuel cells or electrolysers.

公开(公告)号：DE19548425A1

公开(公告)日：1997-06-26

申请号：DE19548425

申请日：1995-12-22

Applicant: HOECHST AG

Inventor： HELMER-METZMANN FREDDY DR ,  SCHLEICHER ANDREAS DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: C08G75/0295 ,  H01M8/0289 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1072 ,  C08G75/02 ,  B01D71/66 ,  C08G75/18 ,  C08G75/20 ,  C08J3/09 ,  C08J5/00 ,  C08L81/06 ,  C09D181/02 ,  C09D181/06 ,  C25B13/08 ,  D01F6/26 ,  H01M8/22

Abstract: Polyarylene sulphide-sulphonic acids which are soluble in polar aprotic solvents are new. Also claimed is the prepn. of the acids, comprising completely dissolving the polyarylene sulphide in chloro sulphonic acid, opt. adding oleum or acetic anhydride, and then precipitating the prod. in an aq. medium.

公开(公告)号：DE19545643A1

公开(公告)日：1997-06-12

申请号：DE19545643

申请日：1995-12-07

Applicant: HOECHST AG

Inventor： CLAUS JOACHIM DR ,  DECKERS GREGOR DR ,  SCHNELLER ARNOLD DR ,  WITTELER HELMUT DR

IPC: B01D71/52 ,  C08G61/12 ,  C08G65/48 ,  C08L71/10 ,  C09D171/10 ,  H01M8/1025 ,  H01M8/1065 ,  H01M8/1067 ,  H01M8/1072 ,  B01D61/14 ,  C08J5/18 ,  C09D165/00 ,  H01M8/22

Abstract: Sulphonated aromatic polyether-ketones (PEK) of formula(II) are claimed, in which 1-100% of the -O-phenylene-CO- units are substd. with a SO3M gp., with sulphonated and unsulphonated -O-phenylene-CO- gps. in any sequence -(Ar-O-Ar'-CO-Ar'-O-Ar-CO-Ar"-CO)- (II) Ar, Ar', Ar" = opt. substd. 1,2-, 1,3- or 1,4-phenylene; M = H, NR4 (with R = H or 1-4C alkyl), or an alkali or alkaline earth metal or Sub-Gp. 8 metal, pref. H, NR4 ,Li, Na, K, Ca, Mg, Fe or Pt. Also claimed are: (i) a process for the prodn. of (II); (ii) a polymeric electrolyte soln. contg. (II); and (iii) film with a thickness of from 5 microns to 1 mm contg. (II).