3642425

Information

• Patent Grant
• 3642425

• References
• Source

• Patent Number

  3,642,425

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1972
  52 years ago

• CPC

  • D06P1/908 - using specified dyes
  • C09B1/473 - the acyl groups being residues of a sulfonic acid
  • C09B1/60 - substituted by aliphatic, cycloaliphatic or araliphatic radicals
  • Y10S8/938 - Solvent dyes

• US Classifications

  • 008 - Bleaching and dyeing
  • 552 - Organic compounds