Tertiary butylcatechol

Toluhydroquinone and methyl / fX butyUiydroquinone provide improved resin color retention 2,5-di-/-butyIhydroquinone also moderates the cure rate of the resin. Quaternary ammonium compounds, such as benzyl trimethyl ammonium hydroxide, are effective stabilizers in combination with hydroquinones and also produce beneficial improvements in color when promoted with cobalt octoate. Copper naphthenate is an active stabilizer at levels of 10 ppm at higher levels (150 ppm) it infiuences the cure rate. Tertiary butylcatechol (TBC) is a popular stabilizer used by fabricators to adjust room temperature gelation characteristics. [Pg.317]

In the case of mechanism (6) there are materials available which completely prevent chain growth by reacting preferentially with free radicals formed to produce a stable product. These materials are known as inhibitors and include quinone, hydroquinone and tertiary butylcatechol. These materials are of particular value in preventing the premature polymerisation of monomer whilst in storage, or even during manufacture. [Pg.27]

Chemical Reactivity - Reactivity with Water No reaction Reactivity with Common Materials No reactions Stability During Transport Stable Neutralizing Agentsfor Acids and Caustics Not pertinent Polymerization Slow at ordinary temperatures but when hot may rupture container. Also polymerized by metal salts such as those of iron or aluminum Inhibitor of Polymerization Tertiary Butylcatechol (typically 10 to 50 ppm). [Pg.394]

Normal Butylbeniene is sometimes stablized with tertiary-butylcatechol (T8C) which can be removed by distillation. [Pg.52]

Estlander T, Kostiainen M, Jolanki R, Kanerva L (1998) Active sensitization and occupational allergic contact dermatitis caused by para-tertiary-butylcatechol. Contact Dermatitis 38 96-100... [Pg.595]

Macfarlane AW, Yu RC, King CM (1990) Contact sensitivity to para-tertiary-butylcatechol in an artificial limb. Contact Dermatitis 22 56-57... [Pg.595]

Haustein U-F, Tegetmeyer L, Ziegler V (1985) Allergic and irritant potential of benzoyl peroxide. Contact Dermatitis 13 252-257 Horio T, Tanaka K, Komura J (1977) Depigmentation due to para-tertiary butylcatechol. Int Arch Occup Environ Health 39 ... [Pg.605]

Moroni P, Tomasini M (1992) Contact leukoderma induced by occupational contact with fibre-glass and polyester resins with quinones and tertiary butylcatechol. Dermatosen 40 ... [Pg.620]

PTBP is used in the production of PTBP-FR. Formerly, PTBP has been added in excess, which might have caused concomitant reactions, whereas nowadays this is no longer relevant. PTBP and para-tertiary butylcatechol, both antioxidants in plastics, might cross-react. As PTBP-FR, they are also known for their toxic effects on skin. Toxic exposure to PTBP-FR may cause chemical burn and even toxic leukoderma. Vitiligo-like leukoderma on the hands of PTBP-FR-exposed shoe-manufacturing workers has been found in the above cited Italian study. For... [Pg.644]

Other compounds (polyfunctional azidine hardeners, dipropylene glycol diacrylate, para-tertiary-butylcatechol)... [Pg.664]

Synonyms PTBC 4-ferf-butylcatechol 4-tert-butylpyrocatechol TBC 4-(i,i-dimethylethyl)-i,2-benzenediol tertiary-butylcatechol Uses antioxidant in polyester resins polymerization inhibitor in PVC antioxidant in oil A... [Pg.1199]

Tertiary butyl alcohol (see Butyl alcohol, tert) Tertiary butylcatechol (see Butylcatechol, tert) Tertiary butylmercaptan (see Butyl mercaptan, tert)... [Pg.959]

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