发明授权
US5055606A Alkylthiopropionic pentaerythritol esters and solvent refining thereof
失效
烷基硫代丙酸季戊四醇酯及其溶剂精制
- 专利标题: Alkylthiopropionic pentaerythritol esters and solvent refining thereof
- 专利标题(中): 烷基硫代丙酸季戊四醇酯及其溶剂精制
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申请号: US588476申请日: 1990-09-25
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公开(公告)号: US5055606A公开(公告)日: 1991-10-08
- 发明人: Michael H. Fisch , Mark E. Flanagan , Richard D. Peveler
- 申请人: Michael H. Fisch , Mark E. Flanagan , Richard D. Peveler
- 申请人地址: NY New York
- 专利权人: Witco Corporation
- 当前专利权人: Witco Corporation
- 当前专利权人地址: NY New York
- 主分类号: C07C319/28
- IPC分类号: C07C319/28 ; C07C323/52
摘要:
3-alkylthiopropionic acids which are esterified with pentaerythritol are provided. The esters are solvent refined with especially effective organic solvent blends. Tetraesters thus processed are especially useful as stabilizers for polymer resins and polymers.
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