Azole derivatives are used in anti-freeze concentrates for improving the active life of 1,3-propanediol-based coolants for fuel cells especially used in vehicles

Azole derivatives are used in anti-freeze concentrates for improving the active life of 1,3-propanediol-based coolants for fuel cells especially used in vehicles

  • CN 1,726,269 A
  • Filed: 12/03/2003
  • Published: 01/25/2006
  • Est. Priority Date: 12/12/2002
  • Status: Active Grant
First Claim
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1. fuel cell drives cooling system antifreeze concentrates, promptly use moisture coolant composition by what this enriched material can obtain that specific conductivity is no more than 50 μ

  • S/cm, and this enriched material is based on 1, ammediol or 1, the mixture of ammediol and aklylene glycol and/or its derivative and contain one or more and have 2 or 3 heteroatomic 5 membered heterocyclic compounds (azole derivative) that are selected from nitrogen and sulphur, described heterogeneous ring compound be sulfur atom-containing or contain and be no more than a sulphur atom and can have aromatics or the saturated hexa-atomic structure division that condenses not.

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