公开(公告)号：US20180148573A1

公开(公告)日：2018-05-31

申请号：US15578252

申请日：2017-02-24

申请人： Hongmei YANG

发明人： Changli LU ,  Zhimin YUAN ,  Tongmin CAI ,  Xianbo HUANG ,  Xiangbin ZENG ,  Jian JIAO ,  Renxu YUAN ,  Yuke ZHONG ,  Kai XIONG ,  Hui YANG ,  Kaijin MAI ,  Xueteng DONG

IPC分类号： C08L67/02 ,  C08K3/34 ,  C08K3/26 ,  C08K5/156

CPC分类号： C08L67/02 ,  C08K3/26 ,  C08K3/34 ,  C08K5/156 ,  C08K2003/265 ,  C08L3/02 ,  C08L25/14 ,  C08L67/04 ,  C08L2201/06 ,  C08L2201/08 ,  C08L2203/16 ,  C08L2205/02 ,  C08L2205/03 ,  C08L2205/035 ,  C08K3/013

摘要： A biodegradable polyester composition based on a total weight of the biodegradable polyester composition, including a weight content of a cyclic ester compound having a structure shown as formula (I), which is 100 ppm-950 ppm is provided. The cyclic ester compound is added into the composition and controlling the content of the cyclic ester compound in a range of 100 ppm-950 ppm to realize an anti-thermal oxidative aging property of the biodegradable polyester composition. In addition, a film is prepared by blow molding or a part prepared by injection molding after being digested with 95% ethanol at 40° C. for 240 hours.

公开(公告)号：US20180142060A1

公开(公告)日：2018-05-24

申请号：US15578249

申请日：2016-12-15

申请人： Hongmei YANG

发明人： Changli LU ,  Zhimin YUAN ,  Tongmin CAI ,  Xianbo HUANG ,  Xiangbin ZENG ,  Jian JIAO ,  Renxu YUAN ,  Yuke ZHONG ,  Kai XIONG ,  Hui YANG ,  Kaijin MAI ,  Xueteng DONG

IPC分类号： C08G63/183 ,  C08G63/06 ,  C08L67/02 ,  C08L67/04 ,  C08K3/04 ,  C08L3/04

CPC分类号： C08G63/183 ,  C08G63/06 ,  C08K3/04 ,  C08K3/26 ,  C08K3/34 ,  C08K5/07 ,  C08K5/11 ,  C08K5/20 ,  C08K13/02 ,  C08L3/02 ,  C08L3/04 ,  C08L63/00 ,  C08L67/02 ,  C08L67/04 ,  C08L2201/06 ,  C08L2205/02 ,  C08L2205/03 ,  C08L33/068 ,  C08K3/013 ,  C08L97/02 ,  C08K3/36

摘要： A biodegradable polyester composition based on a total weight of the biodegradable polyester composition, including a weight content of cyclopentanone which is 0.5 ppm-85 ppm is provided. The cyclopentanone is added into the composition and controlling the content of cyclopentanone in the composition within a range of 0.5 ppm-85 ppm to realize a lubrication degree of a film of biodegradable polyester during a blow molding process. When a velocity of film blowing is 176 Kg/h, a range of a film thickness is less than 0.2 μm and a relative deviation of the film thickness is less than 1%.