3726852

Information

• Patent Grant
• 3726852

• References
• Source

• Patent Number

  3,726,852

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1973
  51 years ago

• CPC

  • C09B67/0076 - Preparations of cationic or basic dyes in liquid form
  • C07C51/412 - by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part
  • C09B44/14 - 1, 2-Diazoles or hydrogenated 1,2-diazoles Pyrazolium; Indazolium
  • C09B44/16 - 1, 3-Diazoles or hydrogenated 1,3-diazoles (Benz)imidazolium
  • C09B69/06 - of cationic dyes with organic acids or with inorganic complex acids
  • C09B69/065 - of cationic azo dyes

• US Classifications

  • 534 - Organic compounds