The purpose of this research was to develop active flexible polymer packaging to scavenge oxygen and ethylene. For Oxygen, systems based on Hydroxyl terminated polybutadiene with a catalyser and for ethylene, systems based on pumice and KMnO4 were used. The research was performed step by step, testing first compounds and blends scavenging capacity, the LDPE based films and finally ending with multilayer films. The results obtained showed very good results on gas absorption. This research provides a feasible methodology and promising prospect for active food packaging.