2922690

Information

• Patent Grant
• 2922690

• References
• Source

• Patent Number

  2,922,690

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1960
  64 years ago

• CPC

  • C09B11/26 - Triarylmethane dyes in which at least one of the aromatic nuclei is heterocyclic
  • C09B23/105 - two >CH- groups
  • C09B47/08 - Preparation from other phthalocyanine compounds
  • C09B69/02 - Dyestuff salts
  • C13B30/08 - Washing residual mother liquor from crystals
  • Y10S8/903 - Triple mixture of anionic, cationic, and nonionic emulsifiers for dyeing
  • Y10S8/905 - Mixed anionic and cationic emulsifiers for dyeing
  • Y10S8/908 - Anionic emulsifiers for dyeing
  • Y10S8/917 - Wool or silk
  • Y10S8/927 - Polyacrylonitrile fiber

• US Classifications

  • 008 - Bleaching and dyeing
  • 534 - Organic compounds