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发明公开
CN105838038A 一种PBAT树脂组合物 无效 - 驳回

一种PBAT树脂组合物
摘要：
本发明公开了一种PBAT树脂组合物，包括组分：（a）聚己二酸对苯二甲酸丁二酯；(b)铁元素；（c）四氢呋喃；其中，基于PBAT树脂组合物的总重量，铁元素的重量含量为1ppm-500ppm，四氢呋喃的重量含量为10ppm-500ppm。本发明通过在组合物中添加微量的铁元素和四氢呋喃,将铁元素的含量控制在1ppm-500ppm范围内，四氢呋喃的重量含量控制在10ppm-500ppm范围内，使制备得到的PBAT树脂组合物在沸水老化24小时和48小时后，b值变化小于2，具有明显改善的耐沸水老化颜色稳定性，且在吹膜挤出速度为178Kg/h时，膜厚极差
摘要（英）：

The invention discloses a poly(butyleneadipate-co-terephthalate) (PBAT) resin composition. The PBAT resin composition comprises a, PBAT, b, iron and c, tetrahydrofuran, wherein the PBAT resin composition contains 1-500ppm of iron and 10-500ppm of tetrahydrofuran. Through use of a trace amount of iron and tetrahydrofuran in the composition, iron content of the PBAT resin composition is controlled in a range of 1-500ppm and tetrahydrofuran content of the PBAT resin composition is controlled in a range of 10-500ppm so that after aging in boiling water for 24h and 48h, a b value is less than 2 and boiling water aging-resistant color stability is obviously improved, and at a film blowing extrusion rate of 178Kg/h, a film thickness range is less than 0.2 microns and film thickness relative deviation is less than 1%. The composition has improved film blowing characteristics. Nonuniform stress distribution-caused hole blowing at vesicle positions in blow molding is prevented and film blowing production continuity is guaranteed.

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