Resistance of ashless dispersant additives to oxidation and thermal decomposition

L. Bartha, J. Hancsok, E. Bobest

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Ashless dispersants of the type of alkenyl‐succinic anhydride derivatives were prepared. The resistance of these compounds to oxidation and thermal decomposition was investigated by thermoanalytical methods. Results were compared to those obtained in a panel coking test of these additives at 300°C in a multifunctional package. It was found that data obtained by DSC could be used for rating the stability of polyisobutenyl‐succinimides against thermo‐oxidation.

Original languageEnglish
Pages (from-to)83-92
Number of pages10
JournalLubrication Science
Issue number2
Publication statusPublished - Jan 1992



  • DSC
  • additive
  • ashless
  • dispersant
  • oxidation
  • panel coking test
  • thermal decomposition

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Materials Chemistry

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