Search results
Results from the WOW.Com Content Network
As each phenol group contains only a single t-butyl group they are considered to have low steric hindrance and thus high activity. Arranging three of these around an isocyanurate core gives a compound with a sufficiently high boiling point that it is not volatilised out of the plastic during plastic extrusion and moulding (up to 320 °C in the case of PA).
Tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate is a chemical compound used as a polymer stabilizer in plastics. Like other hindered phenols it acts as a primary antioxidant. More than 1000 tonnes per year are used in the EU.
Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate - an inexpensive and commonly used polymer stabiliser; Tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate - a polymer stabiliser commonly used to protect against long term heat aging; Irganox 1098 - a polymer stabiliser with metal chelation properties
Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate is significantly less volatile than simpler phenolic antioxidants such as butylhydroxytoluene (BHT). This makes it more suitable to stabilising plastics, as it is not driven out by the high temperatures experienced during plastic extrusion and moulding, [2] when they are heated to 150-320 °C (300–600 °F). [3]
Probucol, sold under the trade name Lorelco among others, is an anti-hyperlipidemic drug [1] initially developed for the treatment of coronary artery disease.Clinical use was discontinued in some countries after it was found that the drug may have the undesired effect of lowering HDL in patients with a previous history of heart disease.
Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite is an organophosphite used as a polymer stabilizer in plastics. Like other phosphite antioxidants it primarily acts to remove hydroperoxides and is typically used in combination with hindered phenolic antioxidants such as pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) .
Musk xylene is also known in english as musk xylol, 1-tert-butyl-3,5-dimethyl-2,4,6-trinitrobenzene, tert-butyl-trinitro-xylene, 5-tert-butyl-2,4,6-trinitroxylene, 1-(1,1-dimethylethyl)-3,5-dimethyl-2,4,6-trinitrobenzene, 2,4,6-trinitro-1,3-dimethyl-5-tert-butylbenzene, 2,4,6-trinitro-3,5-dimethyl-tert-butylbenzene, 5-tert-butyl-2,4,6-trinitro-m-xylene, 5-tert-butyl-2,4,6-trinitro-meta-xylene ...
3-Methylheptane is a branched alkane isomeric to octane. Its structural formula is CH 3 CH 2 CH(CH 3)CH 2 CH 2 CH 2 CH 3. It has one stereocenter. Its refractive index is 1.398 (20 °C, D). [citation needed]