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Triphenyl phosphate

About: Triphenyl phosphate is a research topic. Over the lifetime, 579 publications have been published within this topic receiving 6681 citations. The topic is also known as: phenyl phosphate & TPP.


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Patent
27 Jun 2000
TL;DR: In this article, a flame retardant insulation sheet is composed of a composition comprising (A) a polyphenylene ether-based resin preferably having 0.40-0.6 dl/g intrinsic viscosity measured in chloroform at 30 deg.
Abstract: PROBLEM TO BE SOLVED: To obtain the subject sheet excellent in heat resistance and flame retardancy, not containing a flame retardant or the like including a halogen as an essential component, and useful as an insulation sheet for an electric or electronic equipment or the like by constituting the sheet of a composition comprising a polyphenylene ether-based resin, a phosphoric acid ester-based compound and the like. SOLUTION: This flame retarded insulation sheet is composed of a composition comprising (A) a polyphenylene ether-based resin preferably having 0.40-0.6 dl/g intrinsic viscosity measured in chloroform at 30 deg.C, such as poly(2,6- dimethyl-1,4-phenylene ether), (B) a phosphoric acid ester-based compound such as triphenyl phosphate, (C) preferably a dispersing element having =2 aspect ratio (preferably polyorganosiloxane or the like), preferably regulated so that the amount of the component B based on 100 pts.wt. component A may be 2-65 pts.wt., and the proportion of the component C based on the total amount of the composition may be 0.3-10 wt.%. The sheet has preferably <0.5 mm thickness.

3 citations

Patent
07 May 2009
TL;DR: In this article, a process for preparing a product useful as a flame retardant component comprised of a mixed diacetyl ester formed from tetrabromophthalic anhydride (TBPA), glycol(s), propylene oxide, and acetylating agent is presented.
Abstract: Provided is a process for preparing a product useful as a flame retardant component comprised of a mixed diacetyl ester formed from tetrabromophthalic anhydride (TBPA), glycol(s), propylene oxide, and acetylating agent. The process comprises (A) reacting TBPA and glycol(s) and producing at an elevated temperature a half-ester formed from tetrabromophthalic anhydride and the glycol(s); (B) reacting half-ester with propylene oxide in the presence of a basic alkali metal salt to isopropoxylate the half-ester and (C) acetylating the isopropylated half-ester. Steps (A), (B), and (C) are performed in a liquid triaryl phosphate ester, preferably isopropylated triphenyl phosphate. Step (A) is also a process of the invention. The basic alkali metal salt used in step (B) can be added in (A) if desired.

3 citations

Patent
02 Sep 1965
TL;DR: In this article, a process for the manufacture of polyurethanes by the reaction of organic polyisocyanates with hydroxyl group containing polymers is characterized in that the said reaction is carried out in the presence of a complex compound of a stannous salt with an organic ligand which is an ether, a substituted amide a triester of phosphoric acid or a sulphoxide, provided that such a ligand contains no grouping reactive with an isocyanate group.
Abstract: A process for the manufacture of polyurethanes by the reaction of organic polyisocyanates with hydroxyl group containing polymers is characterized in that the said reaction is carried out in the presence of a complex compound of a stannous salt with an organic ligand which is an ether, a substituted amide a triester of phosphoric acid or a sulphoxide, provided that such a ligand contains no grouping reactive with an isocyanate group The stannous salt may be the chloride, bromide, fluoride, sulphate, orthophosphate, hypophosphite, octaphosphate, oxalate, tartrate, acetate, butyrate, hexoate, octoate, oleate or p-toluene sulphonate Suitable ethers are: di-n-propyl ether, di-n-butyl ether, ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, dioxan, tetrahydrofuran, tetrahydropyran, ethylene propylene and butylene oxides Substituted amides may be: dimethyl and diethyl formamides, dimethylacetamide and N-methylacetamide Suitable triesters of phosphoric acid are tri-n-butyl phosphate, tri-(b -chloroethyl) phosphate, triethylphosphate, triphenyl phosphate, dimethylethyl phosphate, tribenzyl phosphate and tricyclohexyl phosphate Sulphoxides mentioned are: dimethyl, diethyl and dibutyl sulphoxides The polyurethane may be derived from a polyether, polyester or polyesteramide which may have a molecular weight of 200-5000 Many conventional polyisocyanates are listed Foamed polyurethanes may be prepared by use of a conventional blowing agent Polymers having mainly secondary hydroxyl groups eg those derived from propylene glycol, 13-butylene glycol or glycerol are suitable for foam preparation A large number of tertiary cyclic amines for use as catalysts are listed In a typical Example (10) a mixture of oxypropylated glycerol, siloxane foam stabilizer, 4-dimethyl amino-pyridine, water and various tin complexes were mixed with tolylene diisocyanate to form a foam The tin complexes used were those of stannous chloride with tetrahydrofuran, dioxan, diethylen glycol dimethyl ether, tributyl phosphate, tri-(b -chloro-ethyl) phosphate, dimethyl formamide, dimethyl sulphoxide and stannous sulphate with dioxanALSO:Complex compounds of a stannous salt with an organic ligand which is an ether, a substituted amide, a triester of phosphoric acid or a sulphoxide, provided that such ligand contains no grouping reactive with an isocyanate group are used to catalyse polyurethane formation The stannous salt may be the chloride, bromide, fluoride, sulphate, or the phosphate, hypophosphite, metaphosphate, oxalate, tartrate, acetate, butyrate, hexoate, octoate, oleate or p-toluene sulphonate Suitable ethers are: di-n-propyl ether, di-n-butyl ether, ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, dioxan, tetrahydrofuran, tetrahydropyran, and ethylene propylene and butylene oxides Substituted amides may be: diethyl and dimethyl formamides, dimethyl acetamide and N-methyl acetamide Suitable triesters of phosphoric acid are tri-n-butyl phosphate, tri - (b - chloroethyl)phosphate, triethylphosphate, triphenyl phosphate, dimethyl ethyl phosphate, tribenzyl phosphate and tricyclohexyl phosphate Sulphoxides mentioned are: dimethyl, diethyl and dibutyl sulphoxides Examples describe the preparation of complexes of stannous chloride with (1) dioxan, (2) tetrahydrofuran, (4) diethylene glycol dimethyl ether, (5) tributyl phosphate, (6) tri-(b -chloroethyl)phosphate; (7) and (8) dimethyl formamide, (9) dimethyl sulphoxide, (14) N,N-dimethylacetamide, (3) stannous sulphate and dioxan, (11) stannous acetate and dimethyl formamide, (12) stannous oxalate and dimethyl formamide, (13) stannous-p-toluene sulphonate and dimethyl formamide, (15) stannous chloride dihydrate and N,N-dimethyl acetamide

3 citations

Journal ArticleDOI
TL;DR: In this paper, the flame retardant high impact polystyrene (HIPS) with triphenyl phosphate (TPP) and novolac type epoxy resin (NE) were characterized using thermo-gravimetric experiment and the flammability was determined by limited oxygen indices.
Abstract: Thermal and thermo-oxidative decomposition and decomposition kinetics of flame retardant high impact polystyrene (HIPS) with triphenyl phosphate (TPP) and novolac type epoxy resin (NE) were characterized using thermo-gravimetric experiment. And the flammability was determined by limited oxygen indices (LOI). The LOI results show that TPP and NE had a good synthetic effect on the flame retardancy of HIPS. Compared with pure HIPS, the LOI values of HIPS/NE and HIPS/TPP only increased by about 5%, and the LOI value of HIPS/TPP/NE reached 42.3%, nearly 23% above that of HIPS. All materials showed one main decomposition step, as radical HIPS scission predominated during anaerobic decomposition. TPP increased the activity energy effectively while NE affected the thermal-oxidative degradation more with the help of the char formation. With both TPP and NE, the materials could have a comparable good result of both thermal and thermal-oxidative degradation, which could contribute to their effect on the flame retardancy.

3 citations

Patent
19 Aug 1953
TL;DR: A high ash residual fuel oil is a liquid fuel having an ash content of at least 0.005 per cent when measured by method I.P.-4/44 of the Institute of Petroleum as mentioned in this paper.
Abstract: A fuel oil composition which, on combustion in a furnace or internal combustion power plant, yields an ash which has a high melting point and thus does not adhere to or corrode the surfaces of the furnace or power plant, comprises a high ash residual fuel oil and a minor proportion of an oil-soluble organic compound of phosphorus. The high ash residual fuel oil is a liquid fuel having an ash content of at least 0.005 per cent when measured by method I.P.-4/44 of the Institute of Petroleum, having a viscosity of at least 100 seconds Redwood I at 100 DEG F and consisting of or containing a residual petroleum oil; in addition to residual petroleum oil, the high ash residual fuel oil may contain other liquid fuels such as distilled or cracked hydrocarbon fuel oils. In particular, the high ash residual fuel oil may be one which, on combustion, forms an ash containing a high proportion of vanadium and/or sodium compounds. The oil-soluble phosphorus compound may be added to the high ash residual fuel in bulk or it may be injected, either as such or as a solution in a suitable solvent, into the fuel oil supply lines to the burner or burners of a furnace or internal combustion power plant at a point before the burner or burners. Types of phosphorus compounds mentioned are (1) organic esters of oxyacids of phosphorus, such as the alkyl, aryl, alkaryl, aralkyl or cycloalkyl esters of the phosphoric or phosphorus acids, (2) organic derivatives of hydrides of phosphorus, such as the alkyl, aryl, alkaryl, aralkyl or cycloalkyl phosphines, (3) the phosphonium bases or salts thereof, (4) the alkyl, aryl, alkaryl, aralkyl or cycloalkyl phosphonic or phosphinic acids and salts or p esters thereof and (5) the alkyl, aryl, alkaryl, aralkyl or cycloalkyl phosphine oxides. Specific examples of phosphorus compounds are triphenyl phosphate or phosphite, tri-o, -m or p-cresyl phosphates or phosphites, tricumenyl phosphate, trixylenyl phosphate or phosphite, propyl diparacresyl phosphite, tributyl, triethyl or trioctyl phosphate or phosphite, isoamyl octyl phosphate, tri (4-ethylphenyl) phosphate, tri (4-tert. butyl-phenyl) phosphate, tri-2-naphthyl phosphate, tribenzyl phosphate, triphenylethyl phosphate, tricyclohexyl phosphate, tri (trichlorphenyl) phosphate, dilauryl, dicetyl or distearyl hydrogen phosphate, lauryl cetyl hydrogen phosphate, stearyl or lauryl dihydrogen phosphate, dibutyl, diphenyl or dicresyl hydrogen phosphate, tetradecane-1-phosphonic acid, 10-phenyl-decane-1-phosphonic acid, 2, 4-dimethyl-naphthalene-phosphonic acid, diphenylcresyl phosphonite, diphenyl phosphinic acid, ethyl-diphenyl phosphinite, phosphobenzene and triphenyl phosphine. The use of alkoxy phospho polysulphides is disclaimed. In the examples, commercial tricresyl phosphate or tributyl phosphite is added to high ash residual fuel oil

3 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202324
202263
20217
202014
201931
201834