申请人:Total Petrochemicals Research Feluy
公开号:EP2233505A1
公开(公告)日:2010-09-29
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.
本发明是一种防止过早聚合的稳定组合物,由以下成分组成
a) 一种或多种烯烃单体、
b) 一种或多种过氧化物前体、
c) 一种或多种能有效抑制 a)中烯烃单体聚合的添加剂、
d) 一种或多种可抑制过氧化物生成的高效添加剂。
在制造稳定组合物的一个实施方案中,添加剂 c) 和 d) 被分别引入 a) 和 b) 的混合物中。
过氧化物的前体可以从醇、醛、酮、醚和有机酸中选择。
能够抑制烯烃单体聚合的添加剂可以是稳定的自由基。
稳定的自由基最好是稳定的亚硝基和/或被至少一个烷基、芳基或烷基芳基取代的羟胺。
能够抑制过氧化物生成的添加剂可以从无阻酚、有阻酚、氨基苯酚和苯二胺中选择。