3804630

Information

• Patent Grant
• 3804630

• References
• Source

• Patent Number

  3,804,630

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1974
  50 years ago

• CPC

  • G03C7/29 - Azo dyes therefor
  • C07D333/38 - Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen
  • C09B35/26 - the tetrazo component being a derivative of a diaryl urea
  • C09B35/28 - the tetrazo component containing two aryl nuclei linked by at least one of the groups -CON<, -SO2N<, -SO2-, or -SO2-O-
  • C09B43/12 - by acylation of amino groups
  • C09B43/136 - with polyfunctional acylating agents
  • C09B43/145 - with polycarboxylic acids
  • C09B62/09 - Disazo or polyazo dyes

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 534 - Organic compounds