Patent ID: 6395942
Filing Date: 2002-05-28
Classification: C07C

Abstract:
A process for increasing the thermal stability of a polymerization inhibitor selected from the group consisting of and mixtures thereof, where R and R1 are each independently hydrogen, cyclohexyl, phenyl or an alkyl group having from 1 to 18 carbon atoms, the process comprising adding to the organic compound an effective amount of a stabilizer selected from the group consisting of and mixtures thereof, where R2 is selected from the group consisting of hydrogen, cyclohexyl, phenyl, and an alkyl group having from 1 to 10 carbon atoms, and R3 is selected from the group consisting of hydrogen, cyclohexyl, an alkyl group having from 1 to 18 carbon atoms and an aromatic group having from 6 to 10 carbon atoms.