Polyester based cobalt concentrates for oxygen scavenging compositions

The invention claims a transition metal and polyester polymer mixing the solid resulting from the mother material the transition metal as main material weight of 1000-40 000 ppm of metal a polyester polymer the amount of the main material weight of at least 40%. To the modified polyester polymer made by the raw material and it is easy to be with the transition metal mixture formed by melting extrusion it is not brittle polymer. Can be the raw material through the melting processing zone in the solid polyester particles solid polyamide particles and solid of this kind of base material particles formed by mixing melt and the fused mass direct the product is formed in order to obtain the bottle blank bottle and oxygen scavenging. With solid raw material to prepare the bottle blank of the b colour value * and l * colour value and temperature is used for atomizing a liquid carrier made of the bottle blank is improved. The best the granule which can be effectively from the mixture in at least partially remove water content under the condition of the dry area at the same time drying so as to further improve colour value * b and l colour value *.