| 摘要 |
The present invention is a composition stabilized against premature polymerization comprising :
a) one or more olefinic monomers,
b) one or more precursors of peroxides,
c) an efficient amount of one or more additives capable to inhibit the polymerization of the olefinic monomers of a),
d) optionally an efficient amount of one or more additives capable to inhibit the production of peroxides. In an embodiment to make the stabilized composition, the additives c) and d) are introduced separately into the mixture of a) and b). The precursor of peroxides can be selected among alcohols, aldehydes, cetones, ethers and organic acids. The additive capable to inhibit the polymerization of the olefinic monomers can be a stable free radical. The stable free radical is advantageously a stable nitroxide and/or a hydroxylamine substituted with at least one alkyl, aryl or alkylaryl group. The additive capable to inhibit the production of peroxides can be selected among the unhindered phenols, the hindered phenols, the aminophenols and the phenylenediamines.
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