Cleaning agent for removing soldering flux based on alkylene glycol branched monoalkyl ether
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsToru Shiino, Kenichi Nobuta, Yoshikazu Yamagata, Tokihiko Shimizu
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Abstract
A cleaning agent for removing a residue of soldering flux, which essentially consists of mono-, di-, or tri-alkylene glycol mono branched C.sub.3 -C.sub.5 alkyl ether, which can remove with high safety both ionic residues and resinous materials contained in a soldering flux, which remain on the surface of a soldered electronic substrate. The cleaning agent of the present invention does not adversely affect the insulation and materials used in an electronic device.
Claims5
A cleaning agent for removing a soldering flux consisting of at least 75% by weight of diethylene glycol monoisobutyl ether and a positive amount up to 25% by weight of water.
A method of removing soldering flux from an electronic device having a soldering flux thereon, which comprises cleaning the electronic device with a cleaning agent consisting of 75-100% by weight of diethylene glycol monoisobutyl ether and 0-25% by weight of water.
Dependencies are inferred from the claim text.