Polymer antioxidant provider Addivant has expanded the production capacity of its Ultranox 626 antioxidant by more than 40 per cent at its US plant in Morgantown, West Virginia. The company also plans to extend global food-contact approvals for the product to enable broader use in food packaging. Ultranox 626 is an organophospite antioxidant used in a plethora of polymers…