-
公开(公告)号:US4994529A
公开(公告)日:1991-02-19
申请号:US446757
申请日:1989-12-06
CPC分类号: C08J7/123 , B29C59/14 , B29K2023/12 , C08J2323/12
摘要: A process is provided for improving the resistance to deterioration when exposed to weather and the adherence to other materials of polypropylene, particularly in the form of moldings, which comprises subjecting a surface of polypropylene to the action of activated oxygen gas at a temperature below about 100.degree. C. in the presence of an N-alkyl or N-acyl 2,2,6,6-tetramethyl piperidyl compound for a time sufficient to improve such weather resistance and adherence.
摘要翻译: 提供了一种提高暴露于天气时耐劣化性能和与聚丙烯其它材料的粘合性,特别是成型品形式的粘合性的方法,该方法包括使聚丙烯表面在低于约100℃的温度下进行活性氧气的作用 在N-烷基或N-酰基2,2,6,6-四甲基哌啶基化合物的存在下,足以改善这种耐候性和粘附性的时间。
-
公开(公告)号:US4997888A
公开(公告)日:1991-03-05
申请号:US376088
申请日:1989-07-06
CPC分类号: C08J7/123 , B29C59/14 , B29K2023/12 , C08J2323/12
摘要: A process is provided for improving the resistance to deterioration when exposed to weather and the adherence to other materials of polypropylene, particularly in the form of moldings, which comprises subjecting a surface of polypropylene to the action of activated oxygen gas at a temperature below about 100.degree. C. in the presence of an N-alkyl or N-acyl 2,2,6,6-tetramethyl piperidyl compound for a time sufficient to improve such weather resistance and adherence.
-