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Invention Grant
US2776985A Aromatic phosphonic acid esterification catalysts 失效
芳香膦酸酯化催化剂

  • Patent Title: Aromatic phosphonic acid esterification catalysts
  • Patent Title (中): 芳香膦酸酯化催化剂
  • Application No.: US33860553
    Application Date: 1953-02-24
  • Publication No.: US2776985A
    Publication Date: 1957-01-08
  • Inventor: MCKINNIS ART C
  • Applicant: UNION OIL CO
  • Assignee: Union Oil Co
  • Current Assignee: Union Oil Co
  • Priority: US33860553 1953-02-24
  • Main IPC: C07F9/38
  • IPC: C07F9/38
Aromatic phosphonic acid esterification catalysts
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