3627750

Information

• Patent Grant
• 3627750

• References
• Source

• Patent Number

  3,627,750

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1971
  52 years ago

• CPC

  • C09B35/28 - the tetrazo component containing two aryl nuclei linked by at least one of the groups -CON<, -SO2N<, -SO2-, or -SO2-O-
  • C09B33/147 - in which the coupling component is a bis -(-o-hydroxy-carboxylic- acid amide)
  • C09B33/153 - in which the coupling component is a bis-(aceto-acetyl amide) or a bis-(benzoyl-acetylamide)
  • C09B35/023 - in which the coupling component is a hydroxy or polyhydroxy compound
  • C09B35/033 - in which the coupling component is an arylamide of an o-hydroxy-carboxylic acid or of a beta-keto-carboxylic acid
  • C09B43/32 - by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines by reacting keto-groups with amines
  • C09B43/38 - by reacting two or more ortho-hydroxy naphthoic acid dyes with polyamines

• US Classifications

  • 534 - Organic compounds
  • 106 - Compositions: coating or plastic