发明授权
US5073206A Method of cleaning using azeotrope-like compositions of
1,1-dichloro-1-fluoroethane, methanol and nitromethane
失效
使用1,1-二氯-1-氟乙烷,甲醇和硝基甲烷的共沸组合物进行清洗的方法
- 专利标题: Method of cleaning using azeotrope-like compositions of 1,1-dichloro-1-fluoroethane, methanol and nitromethane
- 专利标题(中): 使用1,1-二氯-1-氟乙烷,甲醇和硝基甲烷的共沸组合物进行清洗的方法
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申请号: US490024申请日: 1990-03-07
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公开(公告)号: US5073206A公开(公告)日: 1991-12-17
- 发明人: David P. Wilson , Ian R. Shankland , Earl A. E. Lund
- 申请人: David P. Wilson , Ian R. Shankland , Earl A. E. Lund
- 申请人地址: NY Morristown
- 专利权人: Allied-Signal Inc.
- 当前专利权人: Allied-Signal Inc.
- 当前专利权人地址: NY Morristown
- 主分类号: C11D7/50
- IPC分类号: C11D7/50 ; C23G5/028
摘要:
A method of cleaning a solid surface is disclosed. The method involves spraying the solid surface with azeotrope-like compositions by using a propellant. The azeotrope-like compositions comprise from about 93.0 to about 98.0 weight percent 1,1-dichloro-1-fluoroethane, from about 7 to about 2 weight percent methanol, and from about 0.1 to about 0.01 weight percent nitromethane. Preferably, the propellant is selected from the group consisting of hydrocarbons, chlorofluorocarbons, hydrochlorofluorocarbon, hydrofluorocarbon, dimethyl ether, carbon dioxide, nitrogen, nitrous oxide, methylene oxide, air, and mixtures thereof.
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