Search International and National Patent Collections

1. (WO2017152773) BIODEGRADABLE POLYESTER COMPOSITION

Pub. No.:    WO/2017/152773    International Application No.:    PCT/CN2017/074675
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Sat Feb 25 00:59:59 CET 2017
IPC: C08L 67/02
C08L 67/04
C08L 3/02
C08L 25/14
C08K 5/1535
C08K 5/07
C08K 13/02
C08K 3/34
C08K 3/26
Applicants: KINGFA SCI. & TECH. CO., LTD.
金发科技股份有限公司
Inventors: LU, Changli
卢昌利
YUAN, Zhimin
袁志敏
CAI, Tongmin
蔡彤旻
HUANG, Xianbo
黄险波
ZENG, Xiangbin
曾祥斌
JIAO, Jian
焦健
YUAN, Renxu
苑仁旭
ZHONG, Yuke
钟宇科
XIONG, Kai
熊凯
YANG, Hui
杨晖
MAI, Kaijin
麦开锦
DONG, Xueteng
董学腾
Title: BIODEGRADABLE POLYESTER COMPOSITION
Abstract:
The present invention discloses a biodegradable polyester composition, wherein, tetrahydrofuran is contained in a weihgt content of 3ppm-200ppm,cyclopentanone is contained in a weight content of 0.5ppm-85ppm, based on the total weight of the biodegradable polyester composition. By adding tetrahydrofuran and cyclopentanone in the composition and controling the contents thereof in certain ranges,the present invention may significantly improve the poor printing phenomenon of a biodegradable polyester composition during printing, and prevent not only ink being separated from a film, but also too much ink being adhered to the film, thereby allowing the film to exhibit an excellent printing performance. In addition, the present invention may improves the lubrication degree of the film of the biodegradable polyester composition during blow molding, and ensure the stability of the bubbles and the continuity of the film blowing at a film blowing speed of 176Kg/h, a film thickness range of <0.2 μm and a film thickness relative deviation of <1%.