Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Antifreeze concentrates and coolant compositions based on polyglycols and amides for protecting magnesium and the alloys thereof
Ready-to-use aqueous coolant compositions having alkylene glycols, glycerol and/or 1,3-propanediol and a) from 0.05 to 10% by weight, based on the total amount of the composition, of one or more polyethylene glycols and/or polypropylene glycols and b) from 0.01 to 10% by weight, based on the total amount of the composition, of one more carboxamides and/or sulfonamides are useful for inhibiting corrosion in the case of magnesium and magnesium alloys.
BASF Aktiengesellschaft
C C C C
C23F C23F C09K C23F
inventional inventional inventional inventional
Bernd Gerhard Stefan
Wenderoth Wei? Dambach