NOVEL ADDITIVE COMPOSITIONS FOR IMPROVING FILTRABILITY LIMIT TEMPERATURE AND SIMULTANEOUS INHIBITION OF N-PARAFFIN CRYSTALS FORMED DURING LOW TEMPERATURE STORAGE OF MEDIUM DISTILLATES

摘要

NOVEL ADDITIVE COMPOSITIONS FOR IMPROVING THE LIMIT TEMPERATURE OF FILTRABILITY AND THE SIMULTANEOUS INHIBITION OF SEDIMENTATION OF N-PARAFFIN CRYSTALS FORMED AT LOW TEMPERATURE, COMPRISING A MIXTURE. /P P - OF A COMPONENT IN THE GROUP OF POLYMERS OR COPOLYMERS OF MOLECULAR WEIGHT COMPRISING BETWEEN 500 AND 15000 AND HAVING A BRANCHING RATE BETWEEN 10 AND 30 POINTS PER 100 CARBON ATOMS; /P P - AND A RESULTING B COMPOUND OF THE CONDENSATION OF AT LEAST ONE CYCLIC ANHYDRIDE AND AT LEAST ONE N LINEAR POLYAMINE ALKYL. /P P APPLICATION TO THE IMPROVEMENT OF THE PROPERTIES OF CUTS HAVING A FINAL POINT OF DISTILLATION LESS THAN 370C, OR AN INITIAL POINT OF DISTILLATION HIGHER THAN 200C.