The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2020
Filed:
Aug. 30, 2016
Kingfa Sci. & Tech. Co., Ltd., Guangzhou, CN;
Changli Lu, Guangzhou, CN;
Zhimin Yuan, Guangzhou, CN;
Tongmin Cai, Guangzhou, CN;
Xianbo Huang, Guangzhou, CN;
Xiangbin Zeng, Guangzhou, CN;
Jian Jiao, Guangzhou, CN;
Renxu Yuan, Guangzhou, CN;
Yuke Zhong, Guangzhou, CN;
Kai Xiong, Guangzhou, CN;
Hui Yang, Guangzhou, CN;
Kaijin Mai, Guangzhou, CN;
Xueteng Dong, Guangzhou, CN;
KINGFA SCI. & TECH. CO., LTD., Guangzhou, CN;
Abstract
The present invention discloses a PBAT resin composition comprising: (a) Poly (butyleneadipate-co-terephthalate); (b) a cyclic esterified product having a structure represented by the formula (I) Wherein the content by weight of the cyclic esterified product is from 10 ppm to 2000 ppm, based on the total weight of the PBAT resin composition. In the present invention, the service life of the PBAT resin composition can be greatly extended by adding cyclic esterified product in the PBAT resin composition and controlling the content of the cyclic esterified product in the composition in the range of 10 ppm to 2000 ppm. And after boiled for 240 hours in 95% ethanol at 40° C., the film produced from blowing or the articles produced from injection have less surface precipitates, with excellent surface appearance properties.