Composition of additives, comprising at least one copolymer, one cold-flow improver and one anti-settling additive

A composition of additives comprising:

• at least one copolymer comprising:
• at least one unit having the following formula (I):
• in which
• R1 represents a hydrogen atom or a methyl group,
• X represents —O—CO—, or —CO—O— or —NH—CO— or —CO—NH—, and
• R2 represents a C6 to C24 alkyl group;
• and
• at least one unit having the following formula (II):
• in which
• R represents a C2 to C34 group, comprising at least one nitrogen heterocycle;
• at least one cold flow improver chosen from the copolymers of ethylene and of unsaturated ester(s);
• at least one anti-settling additive and/or paraffin dispersant.