3024255

Information

• Patent Grant
• 3024255

• References
• Source

• Patent Number

  3,024,255

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1962
  62 years ago

• CPC

  • C09B45/48 - Preparation from other complex metal compounds of azo dyes
  • C07C309/42 - having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings
  • C07C309/50 - having at least one of the sulfo groups bound to a carbon atom of a six-membered aromatic ring being part of a condensed ring system
  • C07C309/73 - to carbon atoms of non-condensed six-membered aromatic rings
  • C09B27/00 - Preparations in which the azo group is formed in any way other than by diazotising and coupling
  • C09B31/00 - Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
  • C09B43/08 - by reduction
  • C09B43/10 - with formation of a new azo or an azoxy bridge
  • C09B43/14 - with phosgene or thiophosgene

• US Classifications

  • 552 - Organic compounds
  • 534 - Organic compounds
  • 548 - Organic compounds
  • 562 - Organic compounds