Polymerization inhibition of isoprene

Details Polymerization inhibition of isoprene Polymerization inhibition of isoprene

C - Chemistry, Metallurgy

07

C

C07C 11/18 (2006.01) C07C 7/20 (2006.01) C09K 15/24 (2006.01)

Patent

CA 2327717

It has been discovered that the polymerization of dime compounds, such as isoprene, may be inhibited by the addition of a composition that contains a at least one phenylenediamine, at least one sterically hindered phenol, and at least one hydroxylamine. This three-component composition exhibits synergistically improved results over the use of the components individually or in paired combinations. In one preferred embodiment, the polymerization inhibiting composition includes phenylenediamine (PDA), butylated hydroxytoluene (BHT), and N,N'- diethylhydroxylamine (DEHA).

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