发明公开
EP0023088A1 Process for the interconversion of crystalline forms of ethylene bis-stearamide
失效
一种用于转换乙烯 - 双硬脂酰胺的结晶形式的过程。
- 专利标题： Process for the interconversion of crystalline forms of ethylene bis-stearamide
- 专利标题（中）： 一种用于转换乙烯 - 双硬脂酰胺的结晶形式的过程。
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申请号： EP80302096.5申请日： 1980-06-20
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公开(公告)号： EP0023088A1公开(公告)日： 1981-01-28
- 发明人: Rosen, Marvin , Franklin, Lloyd C.
- 申请人： GLYCO CHEMICALS, INC.
- 申请人地址： 51 Weaver Street Greenwich, CT 06830 US
- 专利权人： GLYCO CHEMICALS, INC.
- 当前专利权人： GLYCO CHEMICALS, INC.
- 当前专利权人地址： 51 Weaver Street Greenwich, CT 06830 US
- 代理机构： Arthur, Bryan Edward
- 优先权： US51203 19790622
- 主分类号： C07C102/00
- IPC分类号： C07C102/00 ; C07C103/44
摘要：
(57) A process for preparing alpha and beta crystalline forms of N,N' ethylene bis-stearamide (EBS). Heating of EBS at temperatures of 120°C-160°C to melt the EBS results in formation of 95+% alpha which when cooled to 40°C or less remains in the alpha state, but upon reheating to about 80°C results in 95 + %conversion to the beta crystalline form. Heating of the alpha crystalline form at temperatures ranging from about 45-90°C for selected periods of time results in mixtures of alpha and beta.
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