中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

8 records (took 0.026 seconds)

    2.
    发明专利
    未知

    公开(公告)号：DE102005038612A1

    公开(公告)日：2007-02-22

    申请号：DE102005038612

    申请日：2005-08-16

    Applicant: BASF AG

    Inventor： THATE SVEN ,  KHVOROST ALEXANDER ,  MOEHWALD HELMUT ,  HENNIG INGOLF

    IPC: B01D69/12 ,  C25B9/23 ,  H01M4/88 ,  H01M4/94

    Abstract: The invention relates to a process for producing catalyst coated membranes for electrochemical devices, which comprises the steps A) production of a first semifinished product by application of a first ionomer layer to a first carrier, application of an anode catalyst layer to the first ionomer layer using a first catalyst ink, drying of the anode catalyst layer, B) production of a second semifinished product by application of a second ionomer layer to a second carrier, application of a cathode catalyst layer to the second ionomer layer using a second catalyst ink, drying of the cathode catalyst layer, C) removal of the first and second carrier from the first and second ionomer layer, respectively, and joining of the first semifinished product to the second semifinished product by joining of the first ionomer layer to the second ionomer layer.

    METHOD FOR PRODUCING MEMBRANES COATED WITH A CATALYST ON BOTH SIDES
    3.
    发明专利
    METHOD FOR PRODUCING MEMBRANES COATED WITH A CATALYST ON BOTH SIDES 未知

    公开(公告)号：CA2618192A1

    公开(公告)日：2007-02-22

    申请号：CA2618192

    申请日：2006-08-15

    Applicant: BASF AG

    Inventor： KHVOROST ALEXANDER ,  THATE SVEN ,  HENNIG INGOLF ,  MOEHWALD HELMUT

    IPC: H01M4/88 ,  C25B9/23 ,  H01M8/02 ,  H01M8/10

    Abstract: The invention relates to a method for producing membranes coated with a catalyst on both sides for electrochemical devices, with the following steps : A) producing a first semifinished product by applying a first ionomer layer onto a first support, applying an anode catalyst layer onto the first ionome r layer while using a first catalyst ink, and drying the anode catalyst layer; B) producing a second semifinished product by applying a second ionomer laye r onto a second support, applying a cathode catalyst layer onto the second ionomer layer while using a second catalyst tint, and drying the cathode catalyst layer; C) removing the first and second supports from the first or second ionomer layer and, joining the first semifinished product to the seco nd semifinished product by joining the first ionomer layer to the second ionome r layer.

    5.
    发明专利
    未知

    公开(公告)号：NO20076664L

    公开(公告)日：2008-01-18

    申请号：NO20076664

    申请日：2007-12-28

    Applicant: BASF AG

    Inventor： KHVOROST ALEXANDER ,  WAHSNER GERHARD EUGEN ,  THATE SVEN ,  BOHNKE HARALD ,  LOSCH DENNIS

    IPC: C08J3/05 ,  C08J5/22

    Abstract: The present invention relates to a process for preparing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups, in particular a sulfonated polyaromatic compound, and also aqueous formulations (A) which have been prepared by the process of the invention. Furthermore, the present invention relates to a process for preparing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. The present invention further provides a formulation (C) comprising the dried formulation (B) of the invention and water or the formulation A of the invention and a water-comprising formulation (D) comprising the aqueous formulation (A) or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Furthermore, the present invention relates to dry formulations (E) which are obtained by removing water and solvent from the water-comprising formulations (D) of the invention. The present invention further provides for the use of the water-comprising formulations (D) of the invention and of the dry formulations (E) obtained from these for producing a polymer electrolyte membrane and also the polymer electrolyte membrane itself and a membrane-electrode assembly (MEA) and also a fuel cell comprising the polymer electrolyte membrane of the invention.

    7.
    发明专利
    未知

    公开(公告)号：DE102005030970A1

    公开(公告)日：2007-01-11

    申请号：DE102005030970

    申请日：2005-06-30

    Applicant: BASF AG

    Inventor： KHVOROST ALEXANDER ,  WAHSNER GERHARD EUGEN ,  THATE SVEN ,  BOEHNKE HARALD ,  LOESCH DENNIS

    IPC: B01D71/06 ,  B01D69/12 ,  C08J5/22 ,  H01M8/02

    Abstract: The present invention relates to a process for preparing aqueous formulations (A) comprising at least one polyaromatic compound bearing acid groups, in particular a sulfonated polyaromatic compound, and also aqueous formulations (A) which have been prepared by the process of the invention. Furthermore, the present invention relates to a process for preparing dried formulations (B) by removing the water from the aqueous formulations (A) and also the dried formulations (B) themselves. The present invention further provides a formulation (C) comprising the dried formulation (B) of the invention and water or the formulation A of the invention and a water-comprising formulation (D) comprising the aqueous formulation (A) or the formulation (C) of the invention and additionally at least 2% by weight of an organic solvent. Furthermore, the present invention relates to dry formulations (E) which are obtained by removing water and solvent from the water-comprising formulations (D) of the invention. The present invention further provides for the use of the water-comprising formulations (D) of the invention and of the dry formulations (E) obtained from these for producing a polymer electrolyte membrane and also the polymer electrolyte membrane itself and a membrane-electrode assembly (MEA) and also a fuel cell comprising the polymer electrolyte membrane of the invention.

    AQUEOUS FORMULATIONS CONTAINING POLYAROMATIC COMPOUNDS WITH ACID GROUPS
    8.
    发明专利
    AQUEOUS FORMULATIONS CONTAINING POLYAROMATIC COMPOUNDS WITH ACID GROUPS 未知

    公开(公告)号：CA2613190A1

    公开(公告)日：2007-01-11

    申请号：CA2613190

    申请日：2006-06-29

    Applicant: BASF AG

    Inventor： LOESCH DENNIS ,  THATE SVEN ,  WAHSNER GERHARD EUGEN ,  KHVOROST ALEXANDER ,  BOEHNKE HARALD

    IPC: C08J3/05 ,  C08J5/22 ,  H01M8/10

    Abstract: The invention relates to the following: a method for production of aqueous formulations (A) containing at least one polyaromatic particularly sulphonat ed compound with acid groups and aqueous formulations (A), produced by said method; a method for production of dried formulations (B) by removal of the water from aqueous formulations (A) and the dried formulation (B) itself; a formulation (C), comprising said dried formulation (B) and water or the formulation (A) and a water-containing formulation (D) containing the aqueou s formulation (A) or the formulation (C) and in addition at least 2 wt. % of a n organic solvent; a dry formulation (E), obtained by removal of water and solvent from the aqueous formulation (D); the use of aqueous formulation (D) and the dry formulation (E) obtained therefrom for the production of a polym er electrolyte membrane itself and a membrane/electrode unit (MEA) and a fuel cell comprising said polymer electrolyte membrane.

Patent Agency Ranking