3770474

Information

• Patent Grant
• 3770474

• References
• Source

• Patent Number

  3,770,474

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1973
  51 years ago

• CPC

  • C09B67/0032 - Treatment of phthalocyanine pigments
  • C09B47/06 - Preparation from carboxylic acids or derivatives thereof
  • C09B47/061 - having halogen atoms linked directly to the Pc skeleton
  • C09B47/067 - from phthalodinitriles naphthalenedinitriles, aromatic dinitriles prepared in situ, hydrogenated phthalodinitrile
  • C09B47/0676 - having nitrogen atom(s) linked directly to the skeleton
  • C09B67/0019 - of phthalocyanines

• US Classifications

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