3907904

Information

• Patent Grant
• 3907904

• References
• Source

• Patent Number

  3,907,904

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • C08K5/0041 - Optical brightening agents, organic pigments
  • C07C1/324 - the hetero-atom being a phosphorus atom
  • C07C15/52 - containing a group with formula
  • C07C43/215 - having unsaturation outside the six-membered aromatic ring
  • C07D317/50 - with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to atoms of the carbocyclic ring

• US Classifications

  • 568 - Organic compounds
  • 008 - Bleaching and dyeing
  • 162 - Paper making and fiber liberation
  • 252 - Compositions
  • 549 - Organic compounds
  • 558 - Organic compounds