3679657

Information

• Patent Grant
• 3679657

• References
• Source

• Patent Number

  3,679,657

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1972
  52 years ago

• CPC

  • C09B44/101 - characterised by the coupling component having an amino directing group
  • C09B1/02 - Hydroxy-anthraquinones Ethers or esters thereof
  • C09B1/20 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/50 - Amino-hydroxy-anthraquinones Ethers and esters thereof
  • C09B1/542 - Anthraquinones with aliphatic, cycloaliphatic, araliphatic or aromatic ether groups
  • C09B1/58 - with mercapto groups substituted by aliphatic, cycloaliphatic, araliphatic or aryl radicals
  • C09B3/10 - Amino derivatives
  • C09B5/00 - Dyes with an anthracene nucleus condensed with one or more heterocyclic rings with or without carbocyclic rings
  • C09B23/143 - the ethylene chain carrying a COOH or a functionally modified derivative, e.g.-CN, -COR, -COOR, -CON=, C6H5-CH=C-CN
  • C09B39/00 - Other azo dyes prepared by diazotising and coupling
  • C09B43/206 - with formation of OCXN or OSO2N group
  • C09B51/00 - Nitro or nitroso dyes
  • C09B62/00 - Reactive dyes
  • C09B62/443 - the reactive group being alternatively specified
  • C09B62/78 - with other reactive groups
  • C09B69/00 - Dyes not provided for by a single group of this subclass
  • C09B69/001 - Dyes containing an onium group attached to the dye skeleton via a bridge

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing
  • 548 - Organic compounds
  • 552 - Organic compounds
  • 558 - Organic compounds
  • 560 - Organic compounds
  • 564 - Organic compounds