2469693

Information

• Patent Grant
• 2469693

• References
• Source

• Patent Number

  2,469,693

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1949
  76 years ago

• CPC

  • C13B20/14 - using ion-exchange materials
  • B01J39/185 - obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
  • B01J41/085 - Organic material
  • C08G73/0206 - Polyalkylene(poly)amines
  • C08G73/022 - from polyamines and epihalohydrins

• US Classifications

  • 521 - Synthetic resins or natural rubbers
  • 071 - Chemistry: fertilizers
  • 127 - Sugar, starch, and carbohydrates
  • 210 - Liquid purification or separation
  • 528 - Synthetic resins or natural rubbers
  • 536 - Organic compounds