Patent ID: 7829522

Claim:
Composition which can be used in particular as odorant for a gaseous fuel, more particularly natural gas, consisting of: from 0.1 to 49.9% of an alkyl sulphide (I) of formula: R 1 —S—R 2 in which R 1 and R 2 , which are identical or different, and are selected from: an alkyl radical comprising from 1 to 4 carbon atoms; or a saturated or unsaturated ring with the sulphur atom to which they are attached, comprising from 3 to 5 carbon atoms which is optionally substituted by a C 1 -C 4 alkyl or C 1 -C 4 alkenyl radical; from 50 to 99.8% of an alkyl acrylate (II), the alkyl radical of which comprises from 1 to 12 carbon atoms; from 0.001 to 0.1% of a compound (III) which inhibits the polymerization of the alkyl acrylate (II), comprising a single, stable nitroxide radical of formula (IV): in which R 3 and R 4 are selected from: a tertiary or secondary hydrocarbon radical comprising from 2 to 30 carbon atoms, and optionally one or more heteroatoms chosen from sulphur, phosphorus, nitrogen or oxygen; or a cyclic hydrocarbon radical with the nitrogen atom to which they are attached, comprising from 4 to 10 carbon atoms, the said radical optionally being substituted.