REACTION PRODUCTS OF POLYISOBUTYLENES AND NITROGEN OXIDES ORMIXTURES OF NITROGEN OXIDES AND OXYGEN AND THEIR USE AS FUEL AND LUBRICANT ADDITIVES

摘要

The invention concerns reaction products of polyisobutylenes having an avera ge polymerisation degree P of 10 to 100 and a proportion E of 60 to 90 % of double bonds which can be reacted with maleic acid anhydride, E corresponding to 100 % of the calculated theoretical value if each polyisobutylene molecule has a reactive double bon d of this type, with nitrogen oxides or mixtures of nitrogen oxides and oxygen. These reacti on products are suitable as fuel additives, in particular for spark-ignition engines, and a lubricant additives.