发明授权
US4886900A Tetrakis(3-(3,5-di-tert.buyl-4-hydroxyphenyl)propionyl-oxymethyl)
methane with amorphous structure, process for its preparation and its
use as a stabilizer
失效
具有无定形结构的四（3-（3,5-二叔丁基-4-羟基苯基）丙酰氧基甲基）甲烷，其制备方法及其作为稳定剂
- 专利标题： Tetrakis(3-(3,5-di-tert.buyl-4-hydroxyphenyl)propionyl-oxymethyl) methane with amorphous structure, process for its preparation and its use as a stabilizer
- 专利标题（中）： 具有无定形结构的四（3-（3,5-二叔丁基-4-羟基苯基）丙酰氧基甲基）甲烷，其制备方法及其作为稳定剂
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申请号： US74561申请日： 1987-07-17
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公开(公告)号： US4886900A公开(公告)日： 1989-12-12
- 发明人: Carlo Neri , Nereo Nodari , Giovanni Sandre
- 申请人： Carlo Neri , Nereo Nodari , Giovanni Sandre
- 申请人地址： ITX Palermo
- 专利权人： Enichem Sintesi S.p.A.
- 当前专利权人： Enichem Sintesi S.p.A.
- 当前专利权人地址： ITX Palermo
- 优先权： ITX21258A/86 19860725
- 主分类号： C07C69/732
- IPC分类号： C07C69/732 ; C07C49/04 ; C07C51/42 ; C08K5/10 ; C08K5/13 ; C08K5/134
摘要：
Tetrakis[3,5-di-tert.butyl-4-hydroxyphenyl)-propionyl-oxymethyl]methane with amorphous structure, with glass transition temperature T.sub.g comprised within the range of from about 40.degree. C. to 50.degree. C. and free from endothermic melting peaks at temperatures higher than 50.degree. C. and of up to 200.degree. C. is obtained by means of the melting of crystalline tetrakis[3-(3,5-di-tert.butyl-4-hydroxyphenul)-propionyl-oxymethyl]methane and sudden cooling of the molten material.