Composition for limiting the formation and/or agglomeration of gas hydrates

A composition, comprising:

• (i) at least one compound represented by formula (I) or a salt thereof:
• wherein
• R1 represents a linear or branched, saturated or unsaturated C6 to C30 alkyl chain, wherein the alkyl chain is optionally interrupted with one or more hydrocarbon-based rings,
• R2 represents a hydrogen atom or a group —(CHRa—CHRb)—COOR5, wherein Ra and Rb, which may be identical or different, represent, independently of each other, a hydrogen atom or a methyl group,
• R3 represents a hydrogen atom or a group —(CHRa—CHRb)—COOR6, wherein Ra and Rb, which may be identical or different, represent, independently of each other, a hydrogen atom or a methyl group,
• R4 represents a hydrogen atom or a group —(CHRa—CHRb)—COOR7, wherein Ra and Rb, which may be identical or different, represent, independently of each other, a hydrogen atom or a methyl group,
• R5, R6 and R7, which may be identical or different, represent, independently of each other, a hydrogen atom or a linear or branched, saturated or unsaturated C1 to C12 alkyl chain,
• wherein at least one of the radicals R2, R3 or R4 comprises a carboxylic acid function (—COOH),
• m represents an integer ranging from 1 to 6,
• n represents an integer ranging from 0 to 10, and
• p is 0 or 1;
• and
• (ii) at least one nonionic surfactant.