Selective admixture of additives for modifying a polymer

摘要: The molecular weight of solid polymers, particularly polyolefins, is modified by addition organic peroxides (or other free radical generators), which admixed in a first reaction zone. polymer then melted followed additives such as antioxidants and light stabilizers, are second zone where intense rapid mixing occurs, within the barrel an extruder. separate admixture primary secondary provides improved color odor characteristics for compared to concurrent all additives.