Cleaning agent containing glycol ethers
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United States of America Patent
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Jan 23, 1996
Grant Date -
N/A
app pub date -
Jul 16, 1993
filing date -
Aug 7, 1992
priority date (Note) -
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Abstract
A cleaning agent composition and method, especially for cleaning electronic components, optical parts, and circuit boards. The liquid agent is completely CFC-free and biologically harmless. The composition includes a dipropylene glycol monoether and one or more of the following: N-alkyl-lactam; dihydro-2(3H)-furanone; a polypropylene glycol ether; R.sub.4 --CH(--OH)--CH.sub.2 --NH.sub.2 ; N(R.sub.5).sub.3 ; R.sub.6 --N[(CH.sub.2 CH.sub.2 O).sub.n H] wherein R.sub.4 is a chain of 1-6 carbons, R.sub.5 is a chain of 2-18 carbons, R.sub.6 is a chain of 8-18 carbons and n is a number between 2 and 25.
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