申请人:Allied-Signal Inc.
公开号:US05059728A1
公开(公告)日:1991-10-22
Novel partially fluorinated alkanes having the Formula: ##STR1## wherein each R is the same or different and is selected from the group consisting of CF.sub.3, CHF.sub.2, CH.sub.2 F, and CH.sub.3 CF.sub.2, and R' is an alkyl or fluoroalkyl group having 1 to 6 carbon atoms with the proviso that when each R is CF.sub.3, R' is not CF.sub.3 (CF.sub.2).sub.2 -, CH.sub.3 CF.sub.2 -, or CF.sub.3 have utility as solvents in a variety of industrial cleaning applications including cold cleaning, dry cleaning, and defluxing of printed circuit boards.
具有以下式子的部分氟代烷类新型化合物:##STR1## 其中每个R相同或不同,可从CF.sub.3,CHF.sub.2,CH.sub.2 F和CH.sub.3 CF.sub.2组中选择,R'是具有1到6个碳原子的烷基或氟代烷基,但当每个R为CF.sub.3时,R'不是CF.sub.3(CF.sub.2).sub.2-,CH.sub.3 CF.sub.2-或CF.sub.3。这些化合物可用作溶剂,适用于各种工业清洗应用,包括冷清洗、干洗和印刷电路板的除通。