公开(公告)号：ZA200400190B

公开(公告)日：2005-03-30

申请号：ZA200400190

申请日：2004-01-12

Applicant: BASF AG

Inventor： LADISLAUS MESZAROS ,  BERND WENDEROTH ,  STEFAN DAMBACH ,  UWE FIDORRA

IPC: C09K20060101 ,  C09K5/08 ,  F01P11/14 ,  C09K5/20 ,  H01M20060101 ,  H01M8/04

Abstract: An antifreeze concentrate for cooling systems in fuel-cell drives which gives ready-to-use aqueous coolant compositions having a conductivity of at most 50 muS/cm, based on alkylene glycols or derivatives thereof and containing one or more five-membered heterocyclic compounds (azole derivatives) having 2 or 3 hetero atoms from the group consisting of nitrogen and sulfur, which contain no or at most one sulfur atom and which may carry a fused aromatic or saturated six-membered ring.