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发明公开
CN105838037A 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，包括如下组分：（a）聚己二酸对苯二甲酸丁二酯；(b) 四氢呋喃；其中，基于PBAT树脂组合物的总重量，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四氢呋喃，将PBAT树脂组合物中四氢呋喃的含量控制在10ppm-500ppm范围内，可以使制得PBAT树脂组合物在吹膜挤出速度为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, and b. tetrahydrofuran, wherein the PBAT resin composition contains 10-500ppm of tetrahydrofuran. Through use of a trace amount of tetrahydrofuran in the composition, tetrahydrofuran content of the PBAT resin composition is controlled in a range of 10-500ppm so that when a film blowing extrusion rate of the PBAT resin composition is 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. Tetrahydrofuran in the resin has lubrication effects, prevents nonuniform stress distribution-caused hole blowing at vesicle positions in blow molding and guarantees film blowing production continuity.

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