| abstract |
The invention relates to an oxygen absorption polyester composite material used for the barrier packaging, which comprises polyester homopolymer, copolymer or the blend thereof, and comprises at least transition metal carboxylate catalyst which can oxidize polybutadiene or polyether or polyisoprene, and promote the oxidization. The material can be accomplished once during the polyester polymerization production process. The invention has high oxygen absorption performance and can absorb oxygen for a long time, which is suitable for processing the single-layer barrier product used for the food packaging, for example, bottle, sheet material and film, etc., and can be used for packaging the food, the beverage and the medicine, etc. which are sensitive to the oxygen. |