Effect of the masterbatch carrier on the pigment dispersion and mechanical properties of colored polyolefins

Polyethylene and polybutene were used as carriers to produce two color concentrates with a high amount of organic pigments. Different colored plastic products, namely polyethylene film and polypropylene injection molded parts, were produced using both masterbatches. The polybutene masterbatch promotes a better dispersion of the pigment and improves the toughness of injection molded polypropylene.