摘要:
A process for the production of dialkyl peroxides by reaction of an alcohol and/or an olefin with an organic hydroperoxide using a solid acidic zeolite catalyst.
摘要:
There are described mixtures which are curable by using radical intermediates, are based on fluoroelastomers containing bromine and/or iodine, exhibit, during curing, a low emission of toxic vapors of methyl bromide or iodide and are characterized in that they contain, as crosslinking agents, peroxides having the following formulae: wherein the groups R₁ to R₁₇ have the meanings given in claim 1.
摘要:
The present invention relates to a novel antioxidant-peroxide compound of Structure A, in which the definitions of X, Y, R, An, x, and y are given in the Summary of the Invention section, for example, t-butyl peroxy-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, processes for producing polymeric compositions of enhanced oxidative stability via initiation of polymerization of ethylenically unsaturated monomers, curing of elastomers and unsaturated polyester resins, modification of polypropylene and other polymers and copolymers, and crosslinking of olefin polymers and copolymers, and the resulting polymers having enhanced oxidative stability.
摘要:
Zur Herstellung vom t-Alkyl-t-aralkylperoxiden der allgemeinen Formel I wobei R einen Alkylrest mit 1 bis 4 C-Atomen, Rʹ, Rʺ und R‴ gleiche oder verschiedene Alkylreste mit 1 bis 5 C-Atomen bedeuten und n eine Zahl zwischen 1 und 3 ist, setzt man ein Olefin der allgemeinen Formel II mit einem t-Alkylhydroperoxid der allgemeinen Formel III um worin R, Rʹ, Rʺ und R‴ sowie n die oben angegebene Bedeutung haben, und führt die Umsetzung in Gegenwart von wäßriger Salzsäure durch.
摘要:
The invention concerns compounds, gas mixtures as well as methods for dielectrically insulating electric active parts using certain fluorinated peroxide compounds.
摘要:
The invention relates to a method for efficiently and safely producing organic peroxides, preferably dialkyl peroxides, peroxycarboxylic acids, peroxycarboxylic esters, diacyl peroxides, peroxycarbonate esters, peroxydicarbonates, ketone peroxides, and perketals with the aid of at least one static micromixer. Also disclosed is a device for carrying out the inventive method.