3549664

Information

• Patent Grant
• 3549664

• References
• Source

• Patent Number

  3,549,664

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1970
  54 years ago

• CPC

  • C09B1/585 - substituted by aryl radicals
  • C09B1/06 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/20 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/50 - Amino-hydroxy-anthraquinones Ethers and esters thereof
  • Y10S8/921 - Cellulose ester or ether
  • Y10S8/922 - Polyester fiber

• US Classifications

  • 552 - Organic compounds
  • 008 - Bleaching and dyeing