3529921

Information

• Patent Grant
• 3529921

• References
• Source

• Patent Number

  3,529,921

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1970
  54 years ago

• CPC

  • C09B44/04 - from coupling components containing amino as the only directing group
  • C09B31/02 - Disazo dyes
  • C09B44/108 - characterised by a cyclammonium six-membered specific ring not mentioned hereafter
  • C09B44/123 - in a five-membered ring
  • C09B44/126 - in a six-membered ring
  • D06P1/41 - using basic dyes
  • D06P3/70 - material containing nitrile groups
  • D06P3/76 - using basic dyes
  • Y10S8/927 - Polyacrylonitrile fiber

• US Classifications

  • 008 - Bleaching and dyeing