Patent ID: 8137419

Claim:
Composition which can be used in particular as odorant for a gaseous fuel, more particularly natural gas, comprising: (a) from 5 to 14.95% of parts by weight of at least one 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 comprising from 3 to 5 carbon atoms when taken with the sulphur atom to which they are attached which ring is optionally substituted by a C 1 -C 4 alkyl or C 1 -C 4 alkenyl radical; (b) from 85 to 94.95% parts by weight of at least two alkyl acrylates (II), the alkyl radicals of which comprise from 1 to 12 carbon atoms; (c) from 0.005 to 0.05% part by weight of at least one compound (III) which inhibits the polymerization of the alkyl acrylates (II) in the absence of oxygen, consisting of a stable nitroxide radical of formula (IV): in which R 3 and R 4 , which are identical or different, and 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 comprising from 4 to 10 carbon atoms taken with the nitrogen atom to which they are attached, said radical optionally being substituted.