专利名称：METHOD FOR PRODUCING
MASTERBATCHES
发明人：URUSHIHARA TSUYOSHI,TSUNEIZUMI
YOTA
申请号：EP12860601申请日：20121207公开号：EP2796487A4公开日：20150819
摘要：The present invention provides a method of producing a masterbatch which canyield a masterbatch that contains a metal salt compound and has an improved
moldability with little coloration. The method of producing a masterbatch according tothe present invention is a method of producing a masterbatch in which a metal saltcompound is incorporated into a polyester resin, the method being characterized bycomprising: a first step of obtaining a kneaded product by feeding the polyester resinand the metal salt compound to an extruder and melt-kneading the polyester resin andthe metal salt compound; and a second step of, while continuing kneading after the firststep, further feeding the polyester resin to the extruder and kneading the resultingmixture, wherein, in the first step, the polyester resin and the metal salt compound arefed at such a mass ratio that the amount of the metal salt compound is not more thantwice the amount of the polyester resin; the total amount of the polyester resin fed inthe first and second steps and the metal salt compound fed in the first step is, in termsof mass ratio, in the range of 2 to 20 times the total amount of the polyester resin andthe metal salt compound that are fed in the first step.
申请人：ADEKA CORPORATION
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