Dragonox -B220

Tris -(2,4-di -tert -butyl -phenyl)-phosphite & tetrakis [methylene-3-(3,5-di-tert-butyl-4-hydroxyphenyl-propionate)] methane. Acts as antioxidant. Used in polyolefins and olefin-copolymers such as polyethylene, polypropylene, polybutene and ethylene-vinylacetate copolymers. The blends can also be used in other polymers such as engineering plastics, styrene homo- and copolymers, polyurethanes, elastomers and other organic substrates.