| abstract |
A soldering flux comprising a bis (2-oxazoline) compound, a dithiol compound, an organic carboxylic acid compound and an activator which does not require post-soldering cleaning and, yet, does not cause corrosion of the base metal or deterioration of electrical characteristics and helps to clear the statutory regulations on the use of chlorofluorohydrocarbons. n A soldering flux comprising, in addition to the above components, an organic solvent, a thermoplastic resin or/and an epoxy group-containing compound. |