2741659

Information

• Patent Grant
• 2741659

• References
• Source

• Patent Number

  2,741,659

• Date Filed

  Not available

• Date Issued

  Tuesday, April 10, 1956
  68 years ago

• CPC

  • D06P1/44 - using insoluble pigments or auxiliary substances
  • C09B43/12 - by acylation of amino groups
  • C09B43/38 - by reacting two or more ortho-hydroxy naphthoic acid dyes with polyamines

• US Classifications

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