| 发明名称 |
COOLING AGENTS FOR COOLING SYSTEMS IN FUEL CELL DRIVES |
| 摘要 |
The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, from which are produced ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 mus/cm, based on alkylene glycols or the derivatives thereof, and containing orthosilicic acid esters of formula (I) wherein the variables R<SUP>1 </SUP>to R<SUP>4 </SUP>are the same or different and represent C<SUB>1</SUB>-C<SUB>20 </SUB>alkyl substituents, C<SUB>2</SUB>-C<SUB>20 </SUB>alkenyl substituents, C<SUB>1</SUB>-C<SUB>20 </SUB>hydroxyalkyl substituents, optionally substituted C<SUB>6</SUB>-C<SUB>12 </SUB>aryl substituents and/or glycol ether substituents of formula (CH<SUB>2</SUB>-CH<SUB>2</SUB>-O)<SUB>n</SUB>-R<SUP>5 </SUP>wherein R<SUP>5 </SUP>represents hydrogen or C<SUB>1</SUB>-C<SUB>5 </SUB>alkyl and n represents a number between 1 and 5 |
| 申请公布号 |
EP1346004(B1) |
申请公布日期 |
2006.08.23 |
| 申请号 |
EP20010991850 |
申请日期 |
2001.12.14 |
| 申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
WENDEROTH, BERND;MESZAROS, LADISLAUS;DAMBACH, STEFAN;FIDORRA, UWE;BERGEMANN, MARCO |
| 分类号 |
C09K3/00;C09K5/20;C09K5/08;H01M8/04;H01M8/10 |
主分类号 |
C09K3/00 |
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