Patent ID: 6881355

Claim:
An antifreeze concentrate comprising a) from 0.05 to 10% by weight of one or more sulfonated or sulfated polyglycols of the formula R—(O) l -(A-O) m —(CH 2 ) k —SO 3 X in which A is C 2 - to C 4 -alkylene, R is H, C 1 - to C 10 -alkyl, C 2 - to C 20 -alkenyl or C 6 - to C 18 -aryl, X is H, an alkali metal or alkaline earth metal, K is a number from 0 to 10, L is 0 or 1, M is a number from 1 to 200, b) from 0.05 to 5% by weight of one or more carbamates of the formula in which X is O or S, R is C 1 - to C 8 -alkyl or C 6 - to C 18 -aryl, or a corresponding ammonium salt, c) from 0.05 to 5% by weight of an aliphatic or aromatic amine, d) from 0.01 to 1% by weight of a hydrocarbon-triazole, e) alkylene glycols to 100% by weight.