专利检索 ap:("GLYCO CHEMICALS, INC.") AND inv:"Rosen, Marvin" 第 1 页

1.

发明公开
Process for the interconversion of crystalline forms of ethylene bis-stearamide 失效
标题翻译：一种用于转换乙烯 - 双硬脂酰胺的结晶形式的过程。

公开(公告)号：EP0023088A1

公开(公告)日：1981-01-28

申请号：EP80302096.5

申请日：1980-06-20

申请人： GLYCO CHEMICALS, INC.

发明人： Rosen, Marvin , Franklin, Lloyd C.

IPC分类号： C07C102/00 , C07C103/44

CPC分类号： C07C231/00 , C07C233/00

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.