申请人:Adeka Corporation
公开号:EP2796487A1
公开(公告)日:2014-10-29
The present invention provides a method of producing a masterbatch which can yield a masterbatch that contains a metal salt compound and has an improved moldability with little coloration.
The method of producing a masterbatch according to the present invention is a method of producing a masterbatch in which a metal salt compound is incorporated into a polyester resin, the method being characterized by comprising: a first step of obtaining a kneaded product by feeding the polyester resin and the metal salt compound to an extruder and melt-kneading the polyester resin and the metal salt compound; and a second step of, while continuing kneading after the first step, further feeding the polyester resin to the extruder and kneading the resulting mixture, wherein, in the first step, the polyester resin and the metal salt compound are fed at such a mass ratio that the amount of the metal salt compound is not more than twice the amount of the polyester resin; the total amount of the polyester resin fed in the first and second steps and the metal salt compound fed in the first step is, in terms of mass ratio, in the range of 2 to 20 times the total amount of the polyester resin and the metal salt compound that are fed in the first step.
本发明提供了一种母料的生产方法,该方法可生产出含有金属盐化合物的母料,且母料的成型性得到改善,着色少。
根据本发明的母料生产方法是一种在聚酯树脂中掺入金属盐化合物的母料生产方法,其特征在于该方法包括:第一步,通过将聚酯树脂和金属盐化合物加入挤出机,并对聚酯树脂和金属盐化合物进行熔融捏合,得到捏合产品;第二步,在第一步后继续捏合的同时,进一步将聚酯树脂加入挤出机,并对得到的混合物进行捏合,其中,在第一步中,聚酯树脂和金属盐化合物的加入量比例为金属盐化合物的量不超过聚酯树脂量的两倍;在第一步和第二步中加入的聚酯树脂和在第一步中加入的金属盐化合物的总量,就质量比而言,是在第一步中加入的聚酯树脂和金属盐化合物总量的 2 至 20 倍之间。