Organic peroxides; chemicals for initiating polymerization; curing agents; chemicals in the nature of crosslinking agents, not for medical use; chemical additives for use in the manufacture of polymers; chemical additives for use in the manufacture of paints; chemical additives for use in the manufacture of rubbers; chemical additives in the nature of resin modifiers; catalysts for use in chemical processes; diagnostic reagents for chemical use, other than for medical or veterinary purposes; ...