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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.:

US 10400100 B1

PDFFull Text
Date of Patent:
Sep. 03, 2019

Filed:

Feb. 24, 2017

Biodegradable polyester composition

Applicants:

Kingfa Sci. & Tech. Co., Ltd., Guangdong, CN;

Zhuhai Wango Chemical Co., Ltd., Guangdong, CN;

Tianjin Kingfa New Material Co., Ltd., Tianjin, CN;

Inventors:

Changli Lu, Guangdong, CN;

Zhimin Yuan, Guangdong, CN;

Tongmin Cai, Guangdong, CN;

Xianbo Huang, Guangdong, CN;

Xiangbin Zeng, Guangdong, CN;

Jian Jiao, Guangdong, CN;

Renxu Yuan, Guangdong, CN;

Yuke Zhong, Guangdong, CN;

Kai Xiong, Guangdong, CN;

Hui Yang, Guangdong, CN;

Kaijin Mai, Guangdong, CN;

Xueteng Dong, Guangdong, CN;

Assignees:

KINGFA SCI. & TECH. CO., LTD., Guangdong, CN;

ZHUHAI WANGO CHEMICAL CO., LTD., Guangdong, CN;

TIANJIN KINGFA NEW MATERIAL CO., LTD., Tianjin, CN;

Attorney:

JCIPRNET

Primary Examiner:

Terressa Boykin

Int. Cl.
CPC ...
C08J 5/18 (2006.01); C08L 67/02 (2006.01); C08K 3/26 (2006.01); C08K 3/34 (2006.01); C08K 5/07 (2006.01); C08K 5/1535 (2006.01); C08K 13/02 (2006.01); C08L 3/02 (2006.01); C08L 25/14 (2006.01); C08L 67/04 (2006.01);
U.S. Cl.
CPC ...
C08L 67/02 (2013.01); C08J 5/18 (2013.01); C08K 3/26 (2013.01); C08K 3/34 (2013.01); C08K 5/07 (2013.01); C08K 5/1535 (2013.01); C08K 13/02 (2013.01); C08L 3/02 (2013.01); C08L 25/14 (2013.01); C08L 67/04 (2013.01); C08J 2367/02 (2013.01); C08J 2403/02 (2013.01); C08J 2425/14 (2013.01); C08J 2467/04 (2013.01); C08L 2201/06 (2013.01); C08L 2203/16 (2013.01); C08L 2205/02 (2013.01); C08L 2205/03 (2013.01); C08L 2205/035 (2013.01);
Abstract

A biodegradable polyester composition based on a total weight of the biodegradable polyester composition, including a weight content of tetrahydrofuran, which is 3 ppm-200 ppm; and based on the total weight of the biodegradable polyester composition, a weight content of cyclopentanone is 0.5 ppm-85 ppm is provided. The tetrahydrofuran and cyclopentanone is added into the composition and controlling the content of tetrahydrofuran and the content of cyclopentanone in a certain range in the composition to realize printing performance. Moreover, 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%.

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