3M Innovative Properties Company
Dual cure polythioether
Compositions that are curable to polythioether polymers are provided, comprising: a) a dithiol monomer; b) a diene monomer; c) a radical cleaved photoinitiator; d) a peroxide; and e) an amine; where the peroxide and amine together are a peroxide-amine redox initiator. In some embodiments, the amine is a tertiary amine. In some embodiments, the amine is selected from the group consisting of dihydroxyethyl-p-toluidine, N,N-diisopropylethylamine, and N, N, N′, N″, N″-pentamethyl-diethylenetriamine. In some embodiments, the peroxide is selected from the group consisting of di-tert-butyl peroxide, methyl ethyl ketone peroxide, and benzoyl peroxide. In some embodiments, the composition may additionally comprise a polythiol monomer having three or more thiol groups.
3M INNOVATIVE PROPERTIES COMPANY
B C C C C C C B C
B05D C08G C08G C08L C08G C08L C09J B64D C08F
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Junting Yizhong Jonathan D. Sheng Joel D. Susan E.
Li Wang Zook Ye Oxman DeMoss