3518247

Information

• Patent Grant
• 3518247

• References
• Source

• Patent Number

  3,518,247

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1970
  54 years ago

• CPC

  • C09B1/20 - Preparation from starting materials already containing the anthracene nucleus
  • C09B1/50 - Amino-hydroxy-anthraquinones Ethers and esters thereof
  • C09B23/00 - Methine or polymethine dyes
  • C09B43/006 - by introduction of hydrocarbon radicals on C-atom of azo dye
  • C09B43/11 - by introducing hydrocarbon radicals or substituted hydrocarbon radicals on primary or secondary amino groups
  • C09B44/005 - Special process features in the quaternization reaction
  • C09B51/00 - Nitro or nitroso dyes
  • C09B69/00 - Dyes not provided for by a single group of this subclass
  • C09B69/001 - Dyes containing an onium group attached to the dye skeleton via a bridge
  • Y10S8/919 - Paper
  • Y10S8/927 - Polyacrylonitrile fiber

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing
  • 106 - Compositions: coating or plastic
  • 546 - Organic compounds
  • 549 - Organic compounds