公开(公告)号：US3681482A

公开(公告)日：1972-08-01

申请号：US3681482D

申请日：1970-02-04

Applicant: FMC CORP

Inventor： PATEL VITHAL C ,  ORWOLL EDWARD F

IPC: C07F9/02 ,  C07F9/12 ,  C07F9/08

CPC classification number: C07F9/025 ,  C07F9/12

Abstract: A process for the permanent removal of color from phosphate esters of alkylphenols which either are colored or become colored on storage by simultaneously bleaching and color-stabilizing the phosphate esters with sodium borohydride or lithium borohydride.

Abstract translation: 通过同时使硼氢化钠或硼氢化锂同时漂白和着色稳定磷酸酯，在烷基酚的磷酸酯上永久除去着色或变色的方法。

公开(公告)号：CA1004004A

公开(公告)日：1977-01-25

申请号：CA179762

申请日：1973-08-28

Applicant: FMC CORP

Inventor： PATEL VITHAL C

IPC: C08J3/00 ,  C07F9/06 ,  C07F9/6581 ,  C08G79/02

Abstract: 1426066 Decolorizing polymeric phosphazenes FMC CORP 27 Sept 1973 [28 Sept 1972] 45206/73 Heading C2P Polymeric phosphazenes are decolorized by contacting them with ozone, ozonized air or ozonized oxygen. If desired the ozonized air or ozonized oxygen may be further diluted with an inert gas and when the phosphazene is a high viscosity ester it may be diluted with an inert solvent, e.g. monochlorobenzene. The phosphazenes may be cyclic and/or linear polymers and typically contain groups represented by the general formula wherein n is at least 3, e.g. 3 to 14, generally 3 to 6, and X and Y are independently selected from (i) a halogen atom, e.g. Cl, (ii) SR where R is a C 1 -C 12 aliphatic (preferably C 2 -C 6 alkyl) C 4 -C 6 cycloaliphatic, C 6 -C 10 aromatic radical, or a heterocyclic radical, and is unsubstituted or substituted, e.g. halo-substituted, (iii) OR where R is as defined in (ii), and (iv) -NR 1 R 2 in which R 1 is H and R 2 is a C 1 -C 6 aliphatic group, (b) R 1 and R 2 are as defined for R above, or (c) -NR 1 R 2 form a 5- or 6-membered nitrogencontaining heterocyclic group and they may be cyclic or linear polymers or mixture thereof. The polymeric phosphazenes also include those of the structure wherein R and n are as defined above. Examples are given for the decolorization of liquid polymeric n-propoxyphosphazene, and two types of polymeric n - propoxyphosphazenes containing P-O-P linkages and prepared by condensing polymeric n-propoxyphosphazene with POCl 3 and polymeric phosphonitrilic chloride respectively with elimination of propyl chloride in each case. Comparative results are also given to evaluate sodium and lithium borohydrides, sodium perborate, H 2 O 2 , peracetic acid, calcium hydrochlorite, and ammonium- and potassium persulphates as decolorizing agents for polymeric n-propoxyphosphazene.

公开(公告)号：CA1002060A

公开(公告)日：1976-12-21

申请号：CA163344

申请日：1973-02-09

Applicant: FMC CORP

Inventor： FRANKO-FILIPASIC BORIVOJ R ,  ORWOLL EDWARD F ,  PATEL VITHAL C

IPC: C08K5/00 ,  C08G79/00 ,  C08G79/02 ,  C08K5/51 ,  D01F1/07 ,  D01F2/08 ,  D01F2/10 ,  C08G

Abstract: 1425853 Liquid polymeric phosphazene derivatives FMC CORP 9 Feb 1973 [11 Feb 1972] 6411/73 Heading C2P [Also in Division C3] Substantially water-insoluble liquid polymeric phosphazenes are prepared by reacting a phosphonitrilate comprising groups of the formula representing both cyclic and linear oligomers in which n is at least 3 for cyclic oligomers and at least 2 for linear oligomers, at least some of X and Y represent the same or different OR groups where R is substituted or unsubstituted C 1 -C 12 aliphatic, C 4 -C 6 cycloaliphatic, or C 6 -C 10 aromatic groups, or heterocyclic radicals having up to 12 carbon atoms, the remainder, if any, of X and Y being halogen atoms, with a phosphorus halide: POX 1 3 , PX 1 3 or PSX 1 3 , where X 1 is a halogen atom, or with a phosphonitrilic halide cyclic or linear oligomer comprising groups of the structure wherein X 1 is Cl or Br and n is as defined above at 50-200‹ C. In another embodiment, the products are obtained by self-reaction at elevated temperature, e.g. 50-200‹ C., of compounds comprising groups of the Formula I above representing both cyclic and linear oligomers in which n is as defined above and X and Y are as defined above and in which 10 to 90 mol. per cent of the X and Y substituents are halogen whereby there is a concomitant increase in the weight percentage of phosphorus in the polymeric phosphazene product. In each type of process the reaction may be carried out in an inert solvent or diluent, e.g. octane or chlorobenzene. The reaction may also be carried out in the presence of copper metal, e.g. an active copper powder, as catalyst and the extent of reaction can be monitored by measurement of organic chloride evolved or analysis for residual chloride. The products generally comprise phosphazene units randomly linked together by an oxygen bridge connecting phosphorus atoms of neighbouring units. In examples the radical R is n-propyl. The products are useful as flame retardants for regenerated cellulose filaments and filamentary articles.