申请人:Adeka Corporation
公开号:EP2423260A1
公开(公告)日:2012-02-29
Provided in a method of producing a plastic bottle in which molding cycle is improved and a highly transparent plastic bottle rarely having a problem of discoloration such as whitening is produced. The method according to the present invention is a method of producing a plastic bottle comprising 0.005 to 0.025 parts by mass of a 1,2-benzisothiazol-3(2H)-one 1,1-dioxide compound with respect to 100 parts by mass of a polyester resin, the method comprising preparing a masterbatch containing 0.01 to 0.5 parts by mass of the above-described 1,2-benzisothiazol-3(2H)-one 1,1-dioxide compound with respect to 100 parts by mass of the polyester resin, subsequently mixing the masterbatch and polyester resin to produce a mixture, and molding the mixture into the shape of a bottle. Further, it is preferred that the above-described polyester resin be a polyethylene terephthalate resin.
本发明提供了一种生产塑料瓶的方法,在这种方法中,成型周期得到了改善,并生产出了一种很少出现变色问题(如变白)的高透明度塑料瓶。根据本发明的方法,是一种生产塑料瓶的方法,该塑料瓶含有 0.005 至 0.025 质量份的 1,2-苯并异噻唑-3(2H)-酮 1,1-二氧化物,相对于 100 质量份的聚酯树脂,该方法包括制备含有 0.01至0.5质量份的上述1,2-苯并异噻唑-3(2H)-酮1,1-二氧化物母料与100质量份的聚酯树脂混合,然后将母料和聚酯树脂混合生成混合物,并将混合物模塑成瓶子形状。此外,上述聚酯树脂最好是聚对苯二甲酸乙二醇酯树脂。