| Acetylacetone peroxide formulation for fast curing of unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures, including a VR system. CAS number: 37187-22-7 EINECS/ELINCS No: 253-384-9 Applications: Trigonox 44B VRE is an acetyl acetone peroxide formulation for the curing of unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures. With the curing system Trigonox 44B VRE/cobalt accelerator a much faster speed of cure may be achieved than with curing systems based on a MEKP plus cobalt accelerator, at room and elevated temperatures. Normally the gel times with Trigonox 44B VRE are comparable to those with Butanox M-50. Trigonox 44B VRE is particularly suitable in those applications where a fast mould-turnover is required, e.g. for the cold press moulding or resin injection moulding techniques. The system Trigonox 44B VRE/cobalt accelerator will give a higher peak exotherm than a standard MEKP/cobalt accelerator system. Due to this fact, is it recommendable to avoid the production of too thick laminates in one operation. At low temperatures a reasonable speed of cure is still obtained when Trigonox 44B VRE is used in combination with large amounts of cobalt accelerator possibly in combination with N,N Dimethylaniline as promotor. Information provided by Nouryon |
