Divalent Chalcogen Double Bonded Directly To The Phosphorus Patents (Class 558/207)
And three divalent chalcogens single bonded directly to the phosphorus (e.g., trialkyl phosphates, etc.) (Class 558/208)
And two divalent chalcogens single bonded directly to the phosphorus (Class 558/214)
  • Resorcinol compounds
    Patent number: 4661601
    Abstract: New compounds having the formula 1 ##STR1## wherein W is hydrogen, halogen, n-alkyl, --NHCOR.sup.1, --COR.sup.1, or phenoxyacetylamino optionally substituted by one or two C.sub.1-12 straight- or branched chain alkyl, X is a substituent in the coupling position and is selected from hydrogen, chlorine, bromine, --SR.sup.11 or a nitrogen-containing heterocyclic residue attached at a ring nitrogen atom, and Y is a group having the formula 2 ##STR2## wherein Q is selected from the residues: --COOR.sup.4 or --CONR.sup.4 R.sup.5, --OM, --NR.sup.7 R.sup.8, --PO(OR.sup.9)[O].sub.x R.sup.10 with X=0 or 1, --SO.sub.2 OH, --SO.sub.2 NR.sup.4 R.sup.5 or CN. The groups R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, M, k and n are defined hereinafter.These compounds are used as black color couplers in photographic materials.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: April 28, 1987
    Assignee: Ciba-Geigy AG
    Inventor: Frederick H. Howell
  • Phosphonic acid salts as flame retardants for polyurethanes and polyisocyanurates
    Patent number: 4656200
    Abstract: The invention provides salts of methyl phosphonic acid and its mono- or di-methyl ester with certain amines. The salts are useful flame retardant additives for polyurethanes and polyisocyanurates.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: April 7, 1987
    Assignee: Ciba-Geigy AG
    Inventors: Brian G. Clubley, Richard J. Dellar, David L. Buszard, Norman Richardson