申请人:Roth Michael
公开号:US20050197433A1
公开(公告)日:2005-09-08
The invention relates to a process for the molecular weight increase/crosslinking of non-halogen-containing thermoplastic polymers, in which process a composition comprising a) a non-halogen-containing thermoplastic polymer; b) a functional compound having at least two free-radically reactive ethylenically unsaturated carbon bonds; and
c) an alkoxyamine having a structural unit
which forms free radicals at the melting temperature/processing temperature of the polymer, is mixed and heated above the melting point of the polymer in the case of crystalline polymers or the softening point in the case of amorphous polymers. The invention relates also to the composition itself, to the use thereof in increasing the molecular weight of polymers and to polymers having increased molecular weight or crosslinked polymers prepared in accordance with that process.
本发明涉及一种非含卤热塑性聚合物的增重/交联工艺,在该工艺中,组合物包括 a) 非含卤热塑性聚合物; b) 具有至少两个自由基反应性乙烯不饱和碳键的官能团化合物;以及 c) 具有结构单元的烷氧基胺。
c) 具有以下结构单元的烷氧基胺
在聚合物的熔化温度/加工温度下形成自由基的烷氧基胺,混合并加热至高于聚合物的熔点(如果是结晶聚合物)或软化点(如果是无定形聚合物)。本发明还涉及组合物本身、其在增加聚合物分子量方面的用途以及根据该工艺制备的分子量增加的聚合物或交联聚合物。