2661305

Information

• Patent Grant
• 2661305

• References
• Source

• Patent Number

  2,661,305

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1953
  71 years ago

• CPC

  • D06L3/1242 - Optical brightening in gaseous or solid form
  • D06L3/1228 - with disperse brighteners
  • Y10S8/06 - Resin bleach
  • Y10T428/2971 - Impregnation
  • Y10T442/2582 - Coating or impregnation contains an optical bleach or brightener or functions as an optical bleach or brightener [e.g., it masks fabric yellowing, etc.]

• US Classifications

  • 442 - Fabric
  • 008 - Bleaching and dyeing
  • 252 - Compositions
  • 427 - Coating processes
  • 428 - Stock material or miscellaneous articles
  • 546 - Organic compounds