发明授权
US5308528A Cleaning composition based on 1,1-dichloro-1-fluoroethane and methyl
formate
失效
基于1,1-二氯-1-氟乙烷和甲酸甲酯的清洗组合物
- 专利标题： Cleaning composition based on 1,1-dichloro-1-fluoroethane and methyl formate
- 专利标题（中）： 基于1,1-二氯-1-氟乙烷和甲酸甲酯的清洗组合物
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申请号： US651813申请日： 1991-02-07
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公开(公告)号： US5308528A公开(公告)日： 1994-05-03
- 发明人: Daniel Desbiendras , Jean-Jacques Martin , Pascal Michaud
- 申请人： Daniel Desbiendras , Jean-Jacques Martin , Pascal Michaud
- 申请人地址： FRX
- 专利权人： Societe Atochem
- 当前专利权人： Societe Atochem
- 当前专利权人地址： FRX
- 优先权： FRX9001395 19900207
- 主分类号： C11D7/26
- IPC分类号： C11D7/26 ; C11D7/28 ; C11D7/50 ; C11D7/60 ; C23G5/028 ; H05K3/26 ; C11D7/30
摘要：
For replacing cleaning compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane (F113), the invention provides a composition comprising 55 to 80% by weight of 1,1-dichloro-1-fluoroethane (F141b) and 45 to 20% by weight of methyl formate. These two compounds form a positive azeotrope (b.p.=28.4.degree. C. at atmospheric pressure).The composition, which may be stabilized, can be used for cleaning solid surfaces, in particular for removing flux from printed circuits and for degreasing mechanical parts.
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