2681348

Information

• Patent Grant
• 2681348

• References
• Source

• Patent Number

  2,681,348

• Date Filed

  Not available

• Date Issued

  Tuesday, June 15, 1954
  70 years ago

• CPC

  • C09B47/305 - prepared by demetallizing metal Pc compounds
  • C09B47/067 - from phthalodinitriles naphthalenedinitriles, aromatic dinitriles prepared in situ, hydrogenated phthalodinitrile
  • C09B47/08 - Preparation from other phthalocyanine compounds

• US Classifications

  • 540 - Organic compounds