中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

104 records (took 0.022 seconds)

    21.
    发明专利
    未知

    公开(公告)号：DE50305864D1

    公开(公告)日：2007-01-11

    申请号：DE50305864

    申请日：2003-09-08

    Applicant: BASF AG

    Inventor： ROTERMUND UDO ,  HEMPEL RENATE ,  HESSE MICHAEL ,  RUDLOFF JAN ,  DESSEIX MARYLINE

    IPC: C04B38/00 ,  H01G11/24 ,  H01G11/32 ,  H01G11/48

    Abstract: A foam (I) comprises at least 70 wt.% of carbon with an average cell size of over 20 microns, a porosity of 35-99.5% , over 90% open cells, an internal surface area of over 50 m2/g with cell crosspieces that have a triangular cross-section with inwardly curved sides and pores in the cell framework material of 0.2-50 nm in size and a volume of 0.01-0.8 cm3/g. Independent claims are included for: (1) a powder material (II) prepared by comminution of the foam (I) and; (2) a process for the production of the foam (I) by pyrolysis of a polymer foam, comprising at least 30 wt.% of a polymer material having a nitrogen content of greater than 6 wt.%, porosity of 35-99.5%, open cell content of less than 1% and inorganic materials processed into the foam or applied onto the surface whereby during and/or after pyrolysis the foam treated with water vapor, carbon dioxide and/or oxygen at over 400 degreesC.

    22.
    发明专利
    未知

    公开(公告)号：DE19752037B4

    公开(公告)日：2006-11-09

    申请号：DE19752037

    申请日：1997-11-24

    Applicant: BASF AG

    Inventor： GUETTES BERND ,  HINZ WERNER ,  LAUSBERG DIETRICH ,  ROTERMUND UDO

    IPC: C08G18/48 ,  C08G18/32 ,  C08G18/40

    Abstract: Polyurethanes (PUR) are obtained by reacting (a) polyfunctional isocyanates (optionally in presence of blowing agents and normal additives etc.) with (b) special isocyanate-reactive compounds comprising polyether-alcohols with a single functionality of n \! 0.1, where n = 3-9. An Independent claim is also included for the production of rigid PUR foam by the process described above with blowing agents (c) as an obligatory component.

    23.
    发明专利
    未知

    公开(公告)号：DE10056251B4

    公开(公告)日：2006-06-08

    申请号：DE10056251

    申请日：2000-11-14

    Applicant: BASF AG

    Inventor： BIEDERMANN ANJA ,  KRECH RUEDIGER ,  ROTERMUND UDO ,  REICHELT MICHAEL

    IPC: C08G18/08 ,  B29C44/50 ,  C08G18/66 ,  C08J9/12

    Abstract: Polyurethane foam is produced by processing the reaction mixture (polyisocyanates and compounds with at least two NCO-reactive hydrogen atoms) in an extruder in which the pressure is higher than atmospheric pressure. A method for the production of polyurethane foam by reacting polyisocyanates with compounds containing at least two hydrogen atoms which react with isocyanate groups involves (a) mixing these reactants, (b) feeding the mixture into an extruder in which the internal pressure is above atmospheric pressure, (c) extruding the foamed mixture and (d) hardening the foam. An Independent claim is also included for polyurethane foam, especially rigid polyurethane foam, obtained by this method.

    FOAM MATERIAL CONSISTING PREDOMINANTLY OF CARBON HAVING A HIGH INNER SURFACE AND METHOD FOR THE PRODUCTION THEREOF
    24.
    发明专利
    FOAM MATERIAL CONSISTING PREDOMINANTLY OF CARBON HAVING A HIGH INNER SURFACE AND METHOD FOR THE PRODUCTION THEREOF 未知

    公开(公告)号：AU2003266363A1

    公开(公告)日：2004-04-08

    申请号：AU2003266363

    申请日：2003-09-08

    Applicant: BASF AG

    Inventor： RUDLOFF JAN ,  DESSEIX MARYLINE ,  ROTERMUND UDO ,  HEMPEL RENATE ,  HESSE MICHAEL

    IPC: C04B38/00 ,  H01G11/24 ,  H01G11/32 ,  H01G11/48

    Abstract: A foam (I) comprises at least 70 wt.% of carbon with an average cell size of over 20 microns, a porosity of 35-99.5% , over 90% open cells, an internal surface area of over 50 m2/g with cell crosspieces that have a triangular cross-section with inwardly curved sides and pores in the cell framework material of 0.2-50 nm in size and a volume of 0.01-0.8 cm3/g. Independent claims are included for: (1) a powder material (II) prepared by comminution of the foam (I) and; (2) a process for the production of the foam (I) by pyrolysis of a polymer foam, comprising at least 30 wt.% of a polymer material having a nitrogen content of greater than 6 wt.%, porosity of 35-99.5%, open cell content of less than 1% and inorganic materials processed into the foam or applied onto the surface whereby during and/or after pyrolysis the foam treated with water vapor, carbon dioxide and/or oxygen at over 400 degreesC.

Patent Agency Ranking