3139449

Information

• Patent Grant
• 3139449

• References
• Source

• Patent Number

  3,139,449

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1964
  60 years ago

• CPC

  • B01J31/0262 - comprising phosphinous acid (-ester) groups (R2P(OR’)) or the isomeric phosphine oxide groups (R3P=O)
  • B01J31/0261 - comprising phosphonous acid (-ester) groups (RP(OR’)2) or the isomeric phosphinic acid (-ester) groups (R2(R’O)P=O)
  • C07C331/16 - Isothiocyanates
  • C07F9/40 - Esters thereof
  • C07F9/65685 - the ring phosphorus atom being part of a phosphine oxide or thioxide
  • C08G18/83 - Chemically modified polymers
  • Y02P20/52 - using catalysts

• US Classifications

  • 558 - Organic compounds
  • 502 - Catalyst, solid sorbent, or support therefor: product or process of making
  • 568 - Organic compounds
  • 987 - Organic compounds containing a bi, sb, as, or p atom or containing a metal atom of the 6th to 8th group of the periodic system