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| USP -400P |
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| Peroxyketals |
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| 3006-86-8 |
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USP 400P is an 80% solution of the peroxyketal, 1, 1-Di (t-Butyl peroxy) cyclohexane, in butyl benzyl phthlate. It is a highly efficient source of free radicals for the curing of unsaturated polyester resins at temperatures of about 116'C - 165'C. (240'F - 329'F). USP 400P is more reactive than t-butyl peroxybenzoate
however, the shelf life of the catalyzed compound is usually the same or longer with USP 400P . This improved shelf life feature is particularly advantageous in premix or sheet molding compound (SMC) type applications. Due to the chemical structure of USP 400P , it is more resistant to various pigments, dyes and fillers, which can reduce catalyzed shelf life of polyester compounds and affect flow times in heated dies. |
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Purity, wt.% : 78-80
Active Oxygen, % : 9.58 min
Form : Clear liquid
Specific Gravity @ 20'C : 0.968
Flash Point, Setaflash C.C., 'C ('F). : 70(158)
Solubility @20'C : Soluble in most organic solvents Insoluble in Water
Refractive Index @ 25'C : 1.455 |
| Industrial field |
additive, plastic, polymer, resin, monomer, rubber & additives |
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