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Tricresyl phosphate plasticizer

Plasticizers. Addition of softeners to NBR improve tack and adhesion properties. The most common plasticizers are esters (dibutyl phthalate, tricresyl phosphate), ester gums, alkyd resins, etc. [Pg.657]

Cresylic acid is mainly used as degreasing agent and as a disinfectant of a stabilized emulsion in a soap solution. Cresols are used as flotation agents and as wire enamel solvents. Tricresyl phosphates are produced from a mixture of cresols and phosphorous oxychloride. The esters are plasticizers for vinyl chloride polymers. They are also gasoline additives for reducing carbon deposits in the combustion chamber. [Pg.133]

Tricresyl phosphate (TCP, a gasoline additive in the 1960s alleged to be a com cat exudate) used to be the popular plasticizer, but dioctyl phthalate has now replaced it. Dioctyl phthalate is the primary end-use for 2-ethylhexanol. [Pg.349]

Uses Disinfectant phenolic resins tricresyl phosphate ore flotation textile scouring agent organic intermediate manufacturing salicylaldehyde, coumarin, and herbicides surfactant synthetic food flavors para isomer only) food antioxidant dye, perfume, plastics, and resins manufacturing. [Pg.801]

Waldo Semon patented the use of tricresyl phosphate as a plasticizer for PVC in 1933. This was later replaced by the less toxic di-2-ethylhexyl phthalate (DOP), which is now the most widely used plasticizer. The worldwide production of plasticizer is on the order of 3.2 million tons annually. Volume-wise, about 90% of the plasticizers are used with PVC and PVC-containing systems. [Pg.484]

Since cellulose nitrate is intractable, in 1870 John W. Hyatt added camphor as a plasticizer to flexibilize this plastic. Some 60 years later, Waldo Semon used tricresyl phosphate as a plasticizer for PVC. Dialkyl phthalates, such as dioctyl phthalate (DOP) and other alkyl phthalates which replaced the more toxic tricresyl phosphate, are now used as plasticizers primarily for PVC at an annual rate of 1 million tons. [Pg.129]

Because of the presence of the chlorine atom In every repeating unit PVC does not bum as readily as hope. When used as a plasticizer, tricresyl phosphate also contributes to flame retardancy. In contrast, the organic ester plasticizers, such as DOP, contribute to the combustibility of plasticized PVC Tricresyl phosphate is more toxic than organic esters, and DOP is more toxic than aliphatic esters, such as dioctyl adipate. [Pg.153]

Sometimes, addition of plasticizer imparts flame retardant characteristics in addition to other properties. Phosphate esters such as tris(2-ethyl hexyl) phosphate (TOP), tricresyl phosphate (TCP), chlorinated paraffin hydrocarbons etc. impart excellent flame retardant characteristics to many polymers. [Pg.268]

Plasticizers include tricresyl phosphate and trixylyl phosphate. Foaming agents can be added in the case of using the polymers for wires, which require low dielectric constant and low dielectric loss tangent, such as communication cables, coaxial cables for computers and high-frequency cables. [Pg.28]

An exact analysis of plasticizers according to this method involves fluctuations in the Rp values, characterized by the authors as daily deviations. To eliminate these fluctuations the authors related their Rp values to tricresyl phosphate (of high meta content) with a mean Rp value equated to 0.66. [Pg.106]

Several gas chromatographic separations of phenols from plasticizers have been accomplished. Dinonyl phthalate (25) or silicone oil (20) are recommended as column materials. Saponification is best carried out in glycolic potassium hydroxide, which, for example, saponifies tricresyl phosphate quantitatively. [Pg.115]

In our study all experiments were performed using one single type of plasticizer —tricresyl phosphate. This product is compatible in all proportions with the polymer. By spot check experiments it was found, however, that similar results were also obtained with other types of plasticizers. [Pg.181]

The crystallizability of bisphenol A polycarbonate is markedly increased by the addition of plasticizers, such as tricresyl phosphate. [Pg.191]

In Fig. II the effect of plasticizer is shown for the system poly(vinyl chloride)/tricresyl phosphate. Water also affects the conductivity considerably but its precise function is by no means clear particularly at low moisture contents (135). The presence of ionic impurities causes increased conductivity but the effect of organic impurities is less apparent. For instance, the addition of plasticizers of differing purity to poly-... [Pg.345]

Tricresyl Phosphate (TCP)—Colorless to yellow liquid used as a gasoline and lubricant additive and plasticizer. Formula, PO(OC6H4Ch3)3. [Pg.1259]

Phosphites. The phosphates, second only to phthalates in production volume, are favored for flame resistance and low volatility. Tricresyl phosphate (mixed meta and para isomers) is the most popular it is used in polyvinyl chloride and in nitrocellulose lacquers. Resins plasticized with tricresyl phosphate are deficient in low-temperature flexibility. Diphenyl cresyl phosphate and triphenyl phosphate are other examples, the former for polyvinyl chloride, the latter for cellulose acetate. Diphenyl-2-ethylhexylphosphate is preferred to tricresyl phosphate in polyvinyl chloride where its low toxicity and improved low-temperature flexibility are required. Tn(2-elliylliexyl)-phosphale is outstanding among phosphates used in polyvinyl chloride with respect to low-temperature flexibility in flame- and oil resistance, however, it is inferior to tricresyl phosphate. Tri(butoxvethyl)phosphate finds some use in synthetic rubber. [Pg.1316]

Polychloroethene (polyvinyl chloride), as usually prepared, is atactic and not very crystalline. It is relatively brittle and glassy. The properties of polyvinyl chloride can be improved by copolymerization, as with ethenyl ethanoate (vinyl acetate), which produces a softer polymer ( Vinylite ) with better molding properties. Polyvinyl chloride also can be plasticized by blending it with substances of low volatility such as tris-(2-methylphenyl) phosphate (tricresyl phosphate) and dibutyl benzene-1,2-dicarboxylate (dibutyl phthalate) which, when dissolved in the polymer, tend to break down its glasslike structure. Plasticized polyvinyl chloride is reasonably flexible and is widely used as electrical insulation, plastic sheeting, and so on. [Pg.1435]

Other 2-ethylhexanol based plasticizers were introduced, including some which imparted outstanding low temperature flexibility—dioctyl adipate (DOA), dioctyl azelate (DOZ), dioctyl sebacate (DOS), and trioctyl phosphate (TOF). In addition, TOF showed high resistance to microorganisms which was important in military applications. Furthermore, TOF improved flame resistance. However, the mixed ester—octyl diphenyl phosphate—also introduced in the forties—was far superior and showed a better balance of low temperature performance and flame resistance than either TOF or the well-established plasticizer—tricresyl phosphate (TCP). Each of these found a market as a specialty plasticizer because of these specific performance attributes. None, however, was a serious threat to DOP on an overall price-performance basis. Rather, they were used to supplement the properties of DOP where its performance was inadequate. [Pg.186]

Murray [91] has described a gas chromatographic method for the determination in water of triarylphosphate esters (lmol S-140, tricresyl phosphate, cresol phosphate). These substances are used commercially as lubricant oil and plastic additives, hydraulic fluids and plasticisers. The method involves extraction from the samples, hydrolysis and measurement of the individual phenols by gas chromatography as the trimethylsilyl derivatives. The lower detection limit was about 3ppm. [Pg.271]

The volume leaders among fire retardants with 35 million pounds were the three phosphate plasticizers for PVC tricresyl phosphate, cresyl diphenyl phosphate and triphenyl phosphate. The remaining 6 million pounds were made up of octyl diphenyl phosphate, tributyl phosphate, tri(dibromopropyl) phosphate, tri(dichloropropyl) phosphate and tri-(chloroethyl) phosphate. Polymeric phosphorus and phosphorus halogen-containing additives are used in concentrations of 3-25 p.p.h. in polyesters, flexible and rigid polyurethane foam, and phenolics. [Pg.14]

As Table V shows, the plasticizer improved flame resistance and made the compositions softer. Six parts of tricresyl phosphate increased the impact strength notably with little decrease in hardness. With 12 parts of this plasticizer present, the impact strength was intermediate, but the loss in hardness was serious. [Pg.557]

Amylose triacetate prepared from butanol-precipitated starch may be plasticized with almost any of the common plasticizers which are applicable to the plasticization of cellulose triacetate. For example, some suitable plasticizers are dimethyl or diethyl tartrate, tributyl citrate, tributyl phosphate, tricresyl phosphate, polyethylene glycol, and pentaerythritol tetraacetate. Addition of only 10-20% plasticizer is sufficient to give amylose triacetate films a useful and lasting degree of... [Pg.299]

The mixture of cresols obtained from coal tar is called cresylic acid, an important technical product used as a disinfectant and in the manufacture of resins and tricresyl phosphate. Cresols are useful as raw materials for various chemical products, disinfectants, and synthetic resins. The isomer o-cresol is a starting material for the herbicides 4,6-dinitro-o-cresol and 2-methyl-4-chlorophenoxyacetic acid. The isomers w-cresol and p-cresol are used in phenol-formaldehyde resins and are converted to tricresyl phosphate (a plasticizer and gasoline additive) and to di-t-butyl cresols (antioxidants called BHT). [Pg.679]

Use Manufacture of cyclic and acyclic esters for plasticizers, gasoline additives, hydraulic fluids and organophosphorus compounds, chlorinating agent and catalyst, dopant for semiconductor-grade silicon, tricresyl phosphate, and fire-retarding agents. [Pg.986]

The effect of adding a low-molecular-weight substance to a polymer is to lower its glass transition temperature. The effect is well known, and is exploited in practice to obtain flexible products of poly(vinyl chloride) by adding relatively nonvolatile diluents such as dibutyl phthalate or tricresyl phosphate as plasticizers to the polymer. [Pg.116]

In addition numerous compounds were detected which may serve as potential anthropogenic markers with respect to their source specifity and environmental persistence. Plasticizers (alkylsulfonic acid aryl esters, tributyl and tricresyl phosphates), synthetic fragrances (galaxolide, tonalide, 4-oxoisophorone) and additives of personal care products (4-methoxycinnamic acid 2-ethylhexyl ester, benzyl benzoate, dibenzyl ether, benzophenone) occurred due to sewage treatment plant effluents and reflect therefore an anthropogenic contamination of the particulate riverine matter, even in marine systems. [Pg.191]

The most widely used thermoplastic polymer is the ethylene—vinyl acetate copolymer, which is obtainable in a wide range of molecular weights as well as in a variety of compositions. Often flexibilizers or plasticizers are added in order to improve both the mechanical shock resistance and the thermal properties of the adhesive. Polybutenes, phthalates, and tricresyl phosphate have been used as plasticizers. Tackifying agents can also be added. Because hot-melt adhesives are frequendy ethylene-based, they are subject to oxidation if, as in a typical situation, the adhesive sits in an applicator for long periods before use. Thus, antioxidants such as hindered phenols are often used, as are fillers. Fillers are added to opacify or to modify the adhesive s flow characteristics, as well as to reduce cost. Wax is also a very important component. Wax alters surface characteristics by decreasing both the liquid adhesive s surface tension and its viscosity in the melt. Upon solidification, however, the wax acts to increase the strength of the adhesive. Both paraffin and microcrystalline wax are used (see Waxes). [Pg.235]


See other pages where Tricresyl phosphate plasticizer is mentioned: [Pg.480]    [Pg.480]    [Pg.235]    [Pg.373]    [Pg.464]    [Pg.432]    [Pg.112]    [Pg.172]    [Pg.58]    [Pg.386]    [Pg.251]    [Pg.94]    [Pg.6]    [Pg.185]    [Pg.1280]    [Pg.776]    [Pg.278]    [Pg.464]    [Pg.235]    [Pg.1000]    [Pg.745]    [Pg.86]    [Pg.388]   
See also in sourсe #XX -- [ Pg.170 ]




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