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1.发明授权
公开(公告)号：EP0633877B1
公开(公告)日：1997-08-20
申请号：EP93908534.6
申请日：1993-03-19
IPC分类号： C07C251/56 , C08K5/30 , C08L23/02
CPC分类号： C07C251/86 , C08K5/30
摘要： Disclosed are a class of phenolic-hydrazide compounds of structure (I) and (II) which are useful as stabilizers for polyolefins. The phenolic-hydrazide compounds inhibit oxidative degradation of polyolefins which is attributable to heat and/or ultraviolet light and is promoted or accelerated by metals, e.g., copper, in contact with the polyolefin. In formula (I) and (II) A is hydrogen or a group having formula (a); B is a group having formula (b), (c), (d) or (e); L is a divalent, trivalent or tetravalent hydrocarbon radical having up to about 12 carbon atoms.
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2.发明公开NOVEL PHENOLIC-HYDRAZIDE COMPOUNDS AND POLYOLEFIN COMPOSITIONS STABILIZED THEREWITH 失效酚醛酰肼以及您稳定的聚烯烃组合物。
公开(公告)号：EP0633877A1
公开(公告)日：1995-01-18
申请号：EP93908534.0
申请日：1993-03-19
CPC分类号： C07C251/86 , C08K5/30
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