2238949

Information

• Patent Grant
• 2238949

• References
• Source

• Patent Number

  2,238,949

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1941
  83 years ago

• CPC

  • D06P1/6491 - (Thio)urea or (cyclic) derivatives
  • D06P1/6421 - Compounds containing nitrile groups
  • D06P1/6426 - Heterocyclic compounds
  • D06P1/6494 - Compounds containing a guanyl group R-C-N=
  • D06P5/22 - Effecting variation of dye affinity on textile material by chemical means that react with the fibre
  • D06P5/225 - Aminalization of cellulose; introducing aminogroups into cellulose

• US Classifications

  • 008 - Bleaching and dyeing
  • 530 - Chemistry: natural resins or derivatives
  • 564 - Organic compounds