BIFUNCTIONAL ADDITIVES FOR LIQUID HYDROCARBONS OBTAINED BY GRAFTING STARTING WITH COPOLYMERS OF ETHYLENE AND/OR PROPYLENE AND VINYL ESTER

摘要

The present invention relates to the synthesis and the use of novel copolymers based on ethylene and/or propylene and vinyl ester(s) modified by grafting, effective for improving both the resistance to cold and the lubricity of liquid hydrocarbons, in particular middle distillates originating from the distillation of petroleum and crude oils, in particular those with a low sulphur content.