3691148

Information

• Patent Grant
• 3691148

• References
• Source

• Patent Number

  3,691,148

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1972
  52 years ago

• CPC

  • C07D213/79 - Acids Esters
  • C07C255/00 - Carboxylic acid nitriles
  • C07D233/72 - Two oxygen atoms
  • C07D333/38 - Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
  • C07D487/04 - Ortho-condensed systems
  • C09B33/02 - Disazo dyes
  • C09B43/00 - Preparation of azo dyes from other azo compounds
  • C09B43/06 - by oxidation
  • C09B43/11 - by introducing hydrocarbon radicals or substituted hydrocarbon radicals on primary or secondary amino groups
  • C09B43/12 - by acylation of amino groups
  • C09B43/136 - with polyfunctional acylating agents
  • C09B43/26 - with polyfunctional acylating agents
  • C09B44/005 - Special process features in the quaternization reaction
  • C09B44/20 - Thiazoles or hydrogenated thiazoles

• US Classifications

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