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:
Sep. 27, 2022
Filed:
May. 28, 2019
Kingfa Sci. & Tech. Co., Ltd., Guangdong, CN;
Kai Xiong, Guangdong, CN;
Zhimin Yuan, Guangdong, CN;
Tongmin Cai, Guangdong, CN;
Xianbo Huang, Guangdong, CN;
Xiangbin Zeng, Guangdong, CN;
Jian Jiao, Guangdong, CN;
Changli Lu, Guangdong, CN;
Hui Yang, Guangdong, CN;
Kaijin Mai, Guangdong, CN;
Xueteng Dong, Guangdong, CN;
Weida Ou, Guangdong, CN;
KINGFA SCI. & TECH. CO., LTD., Guangdong, CN;
Abstract
The present invention relates to a polylactic acid 3D printing material and a preparation method thereof, which belong to the technical field of polymer materials. The polylactic acid 3D printing material of the present invention comprises the following preparation raw materials in parts by weight: (a) 40-95 parts of crystalline or semi-crystalline polylactic acid, (b) 5-60 parts of noncrystalline polylactic acid, and (c) 0-1.0 parts of a processing aid. In the polylactic acid 3D printing material, a weight of dextral polylactic acid represents 0.5%-8% of a total weight of the polylactic acid. According to the present invention, a polylactic acid 3D printing material with a good aging resistance property can be obtained, by selecting and using two kinds of polylactic acids with different optical purities as raw materials, rationally distributing the proportional relationship between the two, and defining the content of dextral polylactic acid.