发明授权
US1530670A Vat dyestuffs and process of making the same by condensing thioderivatives of benzoquinones with arylamines 失效
大豆染料和通过将苯醌与芳基胺的硫代衍生物相同的方法制得

  • 专利标题: Vat dyestuffs and process of making the same by condensing thioderivatives of benzoquinones with arylamines
  • 专利标题(中): 大豆染料和通过将苯醌与芳基胺的硫代衍生物相同的方法制得
  • 申请号: US49696821
    申请日: 1921-08-30
  • 公开(公告)号: US1530670A
    公开(公告)日: 1925-03-24
  • 发明人: RICHARD HERZ
  • 申请人: LEOPOLD CASSELLA & CO GMBH
  • 专利权人: Leopold Cassella & Co Gmbh
  • 当前专利权人: Leopold Cassella & Co Gmbh
  • 优先权: US49696821 1921-08-30
  • 主分类号: C09B57/00
  • IPC分类号: C09B57/00
Vat dyestuffs and process of making the same by condensing thioderivatives of benzoquinones with arylamines
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