摘要:
Peroxide compositions include an organic peroxide and a polyalkylene polyol, wherein the organic peroxide is an organic monoperoxycarbonate R—O—CO—O—O-tertiary butyl where R is a C1-C6 alkyl.
摘要:
Process for preparing an organic solution of a dialkyl peroxydicarbonate in a liquid organic solvent (S), carried out at least partly in the presence of the liquid organic solvent (S) and comprising at least one step during which, in a medium containing water, an alkyl haloformate is reacted with an inorganic peroxide, the solvent (S) being chosen from the compounds corresponding to the empirical formula: A − (C n H (2n -2) ) − B (I) in which: - A represents a halogen functional group (Al) or a functional group (A2) corresponding to the structure R-C(=O)-O- in which R is chosen from hydrogen; chlorine; substituted or unsubstituted, linear or branched C 1 -C 20 alkyl radicals; substituted or unsubstituted C 3 -C 22 alkenyl radicals; substituted or unsubstituted C 6 -C 10 cycloalkyl radicals; substituted or unsubstituted C 7 -C 12 aralkyl radicals, and substituted or unsubstituted C 6 -C 10 aryl radicals; - B represents either a hydrogen atom or, when A is not (A2), a second halogen functional group (A1); and - n is such that 3 ≤ n ≤ 8. Organic solution of a dialkyl peroxydicarbonate in this solvent (S) and process for preparing a polymer derived from one or more halogenated ethylenically unsaturated monomers.
摘要:
Disinfecting aqueous composition based on a complex of peracetic acid, hydrogen peroxide, peroxyacids and acetic acid, comprising less than 0.15 % in volume of peracetic acid as well as a stabilizer formed by a mixture of non-oxidized essential oils and triacids ; the water in the composition is ultra-pure water of less than 2 microsiemens (Ms) and having a resistivity of more than 108 O/m. The invention finds application in the disinfection particularly of breakable medical devices in neurology or ophthalmology (fiber optics, 3-mirror or quadraspherical glasses) or in contactology (contact lenses).
摘要:
The invention relates to a method to safely produce, handle and transport packaged organic peroxide formulations comprising a reactive phlegmatiser and to the use of such packaged material in polymerisation and polymer modification processes, particularly the high-pressure (co)polymerisation process of ethylene and/or the suspension (co)polymerisation process of styrene.
摘要:
The current invention relates to the stabilisation of peroxyacid solutions. There is provided a tin based stabiliser composition obtained by the ageing of an alkaline solution of a tin compound and a phosphorus containing compound. The stabiliser is particularly suitable for the stabilisation of non-equilibrium solution of peroxyacids.
摘要:
The invention relates to a method to safely produce, handle and transport packaged organic peroxide formulations comprising a reactive phlegmatiser and to the use of such packaged material in polymerisation processes, particularly the high-pressure (co)polymerisation process of ethylene and/or the suspension (co)polymerisation process of styrene.
摘要:
Organic peroxide compositions which contain a β-dicarbonyl compound or a cyclic α-diketone compound to retard the rate of decomposition of the peroxide compound are disclosed.
摘要:
Peracetic acid solutions tend to decompose slowly during storage. The storage stability of the peracetic acid therein can be improved by introduction of an effective amount of an aliphatic alcohol ethoxylate wetting agent which has an EO number of greater than 4 and preferably from 8 to 20. The wetting agent is preferably derived from an alcohol containing from 8 to 18 carbons. Desirably at least 0.1 % and particularly from 0.5 to 5 % alcohol ethoxylate is incorporated.