公开(公告)号：EP3260493B1

公开(公告)日：2020-03-25

申请号：EP16884775.4

申请日：2016-12-15

申请人： Kingfa Sci. & Tech. Co., Ltd.

发明人： ZHAO, Wei ,  YUAN, Renxu ,  TANG, Meijun ,  JIAO, Jian ,  XIONG, Kai ,  ZHONG, Yuke ,  YANG, Hui ,  MAI, Kaijin ,  GUO, Zhilong ,  DONG, Xueteng ,  ZENG, Xiangbin

IPC分类号： C08L67/02 ,  C08G63/183 ,  C08K3/08

公开(公告)号：EP3808813A1

公开(公告)日：2021-04-21

申请号：EP19820285.5

申请日：2019-05-28

申请人： Kingfa Sci. & Tech. Co., Ltd.

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

IPC分类号： C08L67/04 ,  C08K5/20 ,  C08K5/098

摘要： 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. Studies show that the viscosity retention rate of the polylactic acid 3D printing material of the present invention reaches 70% or more after storage in a constant-temperature and -humidity chamber (at a temperature at 60°C and a humidity of 60%) for 12 days.

公开(公告)号：EP3296360A1

公开(公告)日：2018-03-21

申请号：EP17764498.6

申请日：2017-03-01

申请人： Kingfa Sci. & Tech. Co., Ltd.

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

IPC分类号： C08L67/02

摘要： The present invention discloses a biodegradable polyester composition, wherein based on a total weight of the biodegradable polyester composition, a weight content of glycidyl methacrylate is 0.05ppm-10ppm. In the present invention, by adding a trace amount of glycidyl methacrylate into a chosen formula of the biodegradable polyester composition and controlling the weight content of glycidyl methacrylate which finally remains in the biodegradable polyester composition as 0.05ppm-10ppm, a compatibility between aliphatic-aromatic polyester and polylactic acid in the biodegradable polyester composition can be greatly enhanced, which enables the biodegradable polyester composition to have excellent surface property of film material, and no fisheye occurs on the film material because of a fluctuation of processing technique.

摘要翻译： 本发明公开了一种生物可降解聚酯组合物，其中基于生物可降解聚酯组合物的总重量，甲基丙烯酸缩水甘油酯的重量含量为0.05ppm-10ppm。 在本发明中，通过在选择的生物降解性聚酯组合物中添加微量的甲基丙烯酸缩水甘油酯，将最终残留于生物降解性聚酯组合物中的甲基丙烯酸缩水甘油酯的重量含量控制在0.05ppm〜10ppm，脂肪族 - 芳香族 可生物降解的聚酯组合物中的聚酯和聚乳酸可以大大增强，这使得可生物降解的聚酯组合物具有优异的膜材料表面性能，并且由于加工技术的波动，在膜材料上不会发生鱼眼。