2937997

Information

• Patent Grant
• 2937997

• References
• Source

• Patent Number

  2,937,997

• Date Filed

  Not available

• Date Issued

  Tuesday, May 24, 1960
  64 years ago

• CPC

  • C07D235/20 - Two benzimidazolyl-2 radicals linked together directly or via a hydrocarbon or substituted hydrocarbon radical
  • C11D3/42 - Brightening agents; Blueing agents
  • C11D9/448 - Brightening agents
  • D06L3/1214 - with anionic brighteners
  • D06L3/1228 - with disperse brighteners
  • D06L3/1235 - Optical brightening in organic solvent

• US Classifications

  • 510 - Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions
  • 252 - Compositions
  • 548 - Organic compounds