发明授权
US5258138A Process for stabilizing ethylenically unsaturated compounds and
stabilized monomer compositions
失效
用于稳定烯属不饱和化合物和稳定的单体组合物的方法
- 专利标题： Process for stabilizing ethylenically unsaturated compounds and stabilized monomer compositions
- 专利标题（中）： 用于稳定烯属不饱和化合物和稳定的单体组合物的方法
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申请号： US956436申请日： 1992-10-02
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公开(公告)号： US5258138A公开(公告)日： 1993-11-02
- 发明人: Leslie R. Gatechair , Raymond Seltzer , James L. Hyun
- 申请人： Leslie R. Gatechair , Raymond Seltzer , James L. Hyun
- 申请人地址： NY Ardsley
- 专利权人： Ciba-Geigy Corporation
- 当前专利权人： Ciba-Geigy Corporation
- 当前专利权人地址： NY Ardsley
- 主分类号： C07C7/20
- IPC分类号： C07C7/20 ; C07C51/50 ; C07C57/075 ; C07C67/62 ; C09K15/22 ; C07C61/16 ; C07C69/52 ; C09K15/16
摘要：
A process for stabilizing an ethylenically unsaturated monomer or oligomer from premature polymerization is disclosed whereby a stabilizing amount of an amine, preferably a substituted hindered amine, in combination with phenothiazine or other related heterocyclic moiety is added to said polymerizable monomer or oligomer. The ethylenically unsaturated monomer or oligomer encompass vinyl monomers or oligomers bearing at least one polymerizable moiety. The combination of substituted hindered amine plus phenothiazine inhibits premature polymerization in the liquid and/or vapor phase.