Abstract: A process for the di-tertiary-peroxide synthesis, wherein the condensation reaction between a tertiary hydroperoxide and a tertiary alcohol is carried out in the presence of an acid catalyst, constituted by a compound having a mono-sulphonated aromatic ring selected from the following formulae: wherein: R is an alkyl group having from 2 to 9 carbon atoms, preferably from 2 to 6; R′ and R″ are alkyl groups having a number of from 1 to 9 carbon atoms, preferably from 1 to 6.

Abstract: Compositions for the polymer curing, comprising: a) one or more organic peroxides and b) 3,7-Dimethyl-1,3,6-Octatriene (OCIMENE).

Abstract: A process for the di-ter-peroxide synthesis, wherein the condensation reaction between a tertiary hydroperoxide and a tertiary alcohol is carried out in the presence of an acid catalyst, constituted by a compound having a mono-sulphonated aromatic ring selected from the following formulae: 1

Abstract: Compositions for curing polymers comprising one or more organic peroxides and trans-stilbene.

Abstract: Compositions for the polymer curing, comprising:A) one or more organic peroxidesandB) dicyclopentadiene

Abstract: Compositions for the polymer curing, comprising:A) one or more organic peroxides andB) trans,trans-2,6-dimethyl-2,4,6-octatriene

Abstract: Process for producing an aryl-imido-peralkanoic acid by means of the peroxidation with H.sub.2 O.sub.2 of the corresponding alkanoic (non-peroxy) acid, in the presence of a strong acid with a pKa value equal to, or lower than 3, and in the presence of a halogenated solvent, characterized in that said solvent is CH.sub.2 Cl.sub.2 or CHCl.sub.3, that the amount of alkanoic acid submitted to peroxidation is equal to or smaller than the solubility threshold of said alkanoic acid (in said solvent) and that a solution of said acid in said solvent is reacted with H.sub.2 O.sub.2 (at 10.degree.-35.degree. C.), with the molar ratio of said strong acid to said alkanoic acid being lower than 2.

Abstract: There are described mixes, which are curable by using radical intermediates, are based on fluoroelastomers containing bromine or iodine, exhibit, during curing, a low emission of toxic vapors of methyl bromide or iodide and are characterized in that they contain, as cross-linking agents, peroxides having the following formulas: ##STR1## wherein the substitutents from R.sub.1 to R.sub.17 have the significances defined in the specification.

Abstract: The invention relates to liquid peroxidic compositions containing:from 1 to 50 parts by weight of a diperoxide of formula: ##STR1## from 5 to 75 parts by weight of dicumyl peroxide; from 1 to 85 parts by weight of a peroxide of formula: ##STR2## wherein R is H or an alkyl group containing from 1 to 3 C atoms and wherein A is selected from the radical CH.sub.3 and the phenyl radical, optionally substituted.

Abstract: The invention relates to liquid peroxidic compositions containing:from 1 to 50 parts by weight of a diperoxide of formula: ##STR1## from 5 to 75 parts by weight of dicumyl peroxide; from 1 to 85 parts by weight of a peroxide of formula: ##STR2## wherein R is H or an alkyl group containing from 1 to 3 C atoms and wherein A is selected from the radical CH.sub.3 and the phenyl radical, optionally substituted.