Patent · US Active

Biodegradable polyester composition

US10385204B2 · kind B2 · utility

1Cited by

0References

23Claims

0Family size

Assignee

Hongmei Yang · CN

Inventors

Changli Lu · Tangxia, CN
Zhimin Yuan · Tangxia, CN
Tongmin Cai · Tangxia, CN
Xianbo Huang · Tangxia, CN
Xiangbin Zeng · Longbeilingcun, CN
Jian Jiao · Tangxia, CN
Renxu Yuan · Tangxia, CN
Yuke Zhong · Tangxia, CN
Kai Xiong · 流花街道, CN
Hui Yang · Cincinnati, US
Kaijin Mai · Tangxia, CN
Xueteng Dong · Tangxia, CN

Key dates

Filing date	Feb 24, 2017
Grant date	Aug 20, 2019
Priority date	—
Expiry date	Feb 24, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/035
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.