Rubber acceleration

Crystalline powder, m.p. 174-179 C. Prepared by treatment of thiocarbanilide with sulphur, or by heating aniline, carbon disulphide and nitrobenzene. It is an important rubber accelerator, and on oxidation gives dibenzthiazyl disulphide, also a rubber accelerator. 

Dimeihylamine, C2H7N, (CH3)2NH. Colourless, inflammable liquid with an ammoniacal odour, mp -96" C, b.p. 7°C. Occurs naturally in herring brine. Prepared in the laboratory by treating nitrosodimetbyl-aniline with a hot solution of sodium hydroxide. Dimethylamine is largely used in the manufacture of other chemicals. These include the solvents dimethylacetamide and dimethyl-formamide, the rocket propellant unsym-metrical dimethylhydrazine, surface-active agents, herbicides, fungicides and rubber accelerators. 

It is used for hair dyeing, as a rubber accelerator and as a photographic developer. Derivatives are extensively used as developers in colour photography. 

CmHizN S, PhNHC(S)NHPh. Colourless flakes m.p. 15rC. Prepared by boiling aniline with carbon disulphide. It is used commercially as a rubber accelerator. 

Rubber accelerator Rubber antioxidant Rubber bearings Rubber blends Rubber cements Rubber chemicals... 

Accelerators. During sulfur vulcanization of rubber, accelerators serve to control time to onset of vulcanization, rate of vulcanization, and number and type of sulfur cross-links that form. These factors in turn play a significant role in determining the performance properties of the vulcanizate. 

Arsenic compouds Rubber accelerators and anti-oxidants... 

NaN02 is used for diazotizing in dyestuff manuf, in org synthesis, rubber accelerators, prepn of nitric oxide, pharmaceuticals, photographic reag, curing meats, dyeing and printing textile fabrics, etc... 

Detergents Cosmetics Corrosion inhibitor Plasticizer Rubber accelerator Detergents Cosmetics Corrosion inhibitor Plasticizer Rubber accelerator ... 

Applications Open-column chromatography was used for polymer/additive analysis mainly in the 1950-1970 period (cf. Vimalasiri et al. [160]). Examples are the application of CC to styrene-butadiene copoly-mer/(additives, low-MW compounds) [530] and rubbers accelerators, antioxidants) [531]. Column chromatography of nine plasticisers in PVC with various elution solvents has been reported [44], as well as the separation of CHCI3 solvent extracts of PE/(BHT, Santonox R) on an alumina column [532]. Similarly, Santonox R and Ionol CP were easily separated using benzene and Topanol CA and dilaurylthiodipropionate using cyclohexane ethyl acetate (9 1 v/v) [533]. CC on neutral alumina has been used for the separation of antioxidants, accelerators and plasticisers in rubber extracts [534]. Column chromatography of polymer additives has been reviewed [160,375,376]. 

FD-MS is also an effective analytical method for direct analysis of many rubber and plastic additives. Lattimer and Welch [113,114] showed that FD-MS gives excellent molecular ion spectra for a variety of polymer additives, including rubber accelerators (dithiocar-bamates, guanidines, benzothiazyl, and thiuram derivatives), antioxidants (hindered phenols, aromatic amines), p-phcnylenediamine-based antiozonants, processing oils and phthalate plasticisers. Alkylphenol ethoxylate surfactants have been characterised by FD-MS [115]. Jack-son et al. [116] analysed some plastic additives (hindered phenol AOs and benzotriazole UVA) by FD-MS. Reaction products of a p-phenylenediaminc antiozonant and d.v-9-lricoscnc (a model olefin) were assessed by FD-MS [117],... 

Aniline is an aromatic amine used in the manufacture of dyes, dye intermediates, rubber accelerators, and antioxidants. It has also been used as a solvent, in printing inks, and as an intermediate in the manufacture of pharmaceuticals, photographic developers, plastics, isocyanates, hydroquinones, herbicides, fungicides, and ion-exchange resins. It is produced commercially by catalytic vapor phase hydrogenation of nitrobenzene (Benya and Cornish 1994 HSDB 1996). Production of aniline oil was listed at approximately 1 billion pounds in 1993 (U.S. ITC 1994). Chemical and physical properties are listed in Table 1-2. 

Used industrially in the manufacture of butyl alcohol, butyraldehyde, quinaldine, resins, rubber antioxidants, insecticides, and other chemicals used as a solvent, warning agent in fuel gases, as a rubber accelerator, in leather tanning, and as a denaturant in alcohol. 

Schiff base org chem RR C=NR" Any of a class of derivatives of the condensation of aldehydes or ketones with primary amines colorless crystals, weakly basic hydrolyzed by water and strong acids to form carbonyl compounds and amines used as chemical intermediates and perfume bases, in dyes and rubber accelerators, and in liquid crystals for electronics, shif, bas ... 

Uses Removing carbon dioxide and hydrogen sulfide from natural gas in emulsifiers, hair waving solutions, polishes softening agent for hides agricultural sprays pharmaceuticals, chemical intermediates corrosion inhibitor rubber accelerator nonionic detergents wool treatment. 

Uses Intermediate for pharmaceuticals, dyestuffs, emulsifying agents, and rubber accelerators solvent for dyes, resins, and oils catalyst for making polyurethane foams. 

Uses Intermediate in the synthesis of rubber accelerators, dyes, pharmaceuticals, insecticides, bactericides, textiles, and surface-active agents solvent dehairing agent solubilizer for 2,4-D. 

Uses Rubber accelerator solvent in fiber and plastic industry rocket fuels lubricants condensers to increase dielectric constant industrial solvent antioxidant nematocide softener of copolymers research chemical plasticizer in acrylonitrile polymers inhibit nitrification in soil chemical intermediate for 1,1-dimethylhydrazine. 

Uses Vulcanizer seed disinfectant rubber accelerator rabbit, deer and rodent repellent bacteriostat in soap. Protective fungicide applied to foliage to control Botrytis spp. On ornamentals, lettuce, soft fruit, and vegetables Venturia pirina on pears. Also used in fields and orchards to control birds, rodents, and deer (Worthing and Hance, 1991). Prevents infestation of... 

Uses. Rubber accelerator and vulcanizer, as an activator of thiazole accelerators, and as a plasticizer in neoprene pharmaceutical grade used in treatment of alcoholism... 

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