- 专利标题: Process for making 1,1-dichloro-1,2-difluoroethane
-
申请号: US587153申请日: 1990-09-19
-
公开(公告)号: USH1188H公开(公告)日: 1993-05-04
- 发明人: Mario J. Nappa , Allen C. Sievert
- 申请人: Mario J. Nappa , Allen C. Sievert
- 申请人地址: DE Wilmington
- 专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人地址: DE Wilmington
- 主分类号: C07C17/04
- IPC分类号: C07C17/04
摘要:
A process for the preparation of 1,1-dichloro-1,2-difluoroethane (HCFC-132c) comprising contacting 1,1-dichloroethylene with lead dioxide and anhydrous hydrogen fluoride. Addition of fluorine to the double bond of vinylidene chloride can be achieved using inexpensive and readily available commercial raw materials.
公开/授权文献
- US5636177A Static random access memory with improved noise immunity 公开/授权日:1997-06-03
信息查询