The order of grafting efficiency was as follows: dibenzoyl peroxide (BPO) >
cumene hydroperoxide (CHP) > di-4-tert-butyl-cyclohexyl peroxide (BCHPC) > dicumyl peroxide (DCP) [approximately equal to] di-tert-butyl peroxide (DTBP).
Cumene hydroperoxide (CHP) manufactured by Akzo Nobel Chemical was used as the initiator at 1.5 wt% based on the weight of the resin system.
Cumene hydroperoxide (CHP) in a solution form (Akzo Nobel Chemical) was used as the initiator, and a solution of 6.0 wt% of cobalt naphthenate (Huls America) was used as the promoter.
Peroxide initiators include MEKP and other ketone peroxides, t-butyl perbenzoate, t-butyl hydroperoxide,
cumene hydroperoxide, dicumyl peroxide, and BPO paste.
Peroximon curing agents for polyester resins include MEK peroxides (K1 and K10), methylisobutyl ketone peroxide (K2), acetylacetone (K3), and
cumene hydroperoxide (CH).
CHP-158 is an 89%-pure, low-color solution of
cumene hydroperoxide for room-temperature and heat-assisted curing processes as well as applications where lower exotherms are required, as with thick sections.
Curing agents for polyester resins include several peroxides under the Peroximon brand: MEK peroxide (K1 and K10), methylisobutyl ketone peroxide (K2), acetylacetone (K3), and
cumene hydroperoxide (CH).
For corrosion-resistance: Argus' new CHP-5 is a specially formulated
cumene hydroperoxide that's said to be nonfoaming in vinyl esters and also to provide faster gel and cure than standard
cumene hydroperoxide.
A relatively new initiator for vinyl esters is Trigonox 239A
cumene hydroperoxide solution from Akzo Chemicals Inc., Chicago.
Peroxide initiators include MEKP and other ketone peroxides, t-butyl perbenzoate, t-butyl hydroperoxide, and
cumene hydroperoxide. Company's new MEKP's include the following: