Patent ID: 7883639

Claim:
A stabilized cyclic alkene composition comprising: one or more cyclic alkenes, and at least one antioxidant compound of formula (I), wherein R 1 through R 5 each independently is H, OH, C 1 -C 8 linear, branched, or cyclic alkyl, C 1 -C 8 linear, branched, or cyclic alkoxy or substituted or unsubstituted aryl; and wherein said antioxidant compound is present in an amount between about 1 ppm and 200 ppm; and wherein said composition is purged with at least one gas selected from the group consisting of: helium, neon, argon, krypton, xenon, radon, nitrogen, carbon monoxide and carbon dioxide, after said composition is introduced to a container intended for storage or shipping of said composition.