公开(公告)号：EP4357417A1

公开(公告)日：2024-04-24

申请号：EP22947732.8

申请日：2022-12-05

申请人： Beijing Bluepha Microbiology Technology Co., Ltd. ,  Jiangsu Lansu Biomaterial Co., Ltd.

发明人： MA, Zhiyu ,  MA, Yiming ,  LI, Teng ,  ZHANG, Haoqian

IPC分类号： C08L67/04

CPC分类号： Y02W90/10

摘要： The invention relates to the technical field of polyhydroxyalkanoate materials, and specifically discloses a marine degradable polyhydroxyalkanoate composition, a molded body and a preparation method thereof. The polyhydroxyalkanoate composition includes: (A): 38 to 89.5 parts of a polyhydroxyalkanoate; (B): 10 to 30 parts of an other fully biodegradable resin; (C): an additive, including: 0.1 to 0.5 parts of a chain extender, 0.1 to 1 parts of an antioxidant, and 0.1 to 1 part of a lubricant; (D): 0 to 30 parts of a filler. The molded body prepared from the composition provided by the present invention has high marine degradability and meets the marine biodegradation certification standard. In addition, the preparation method of the present invention can improve the processability and processing efficiency of the blended composition provided by the present invention.

公开(公告)号：EP4349913A1

公开(公告)日：2024-04-10

申请号：EP22940494.2

申请日：2022-12-28

申请人： Beijing Bluepha Microbiology Technology Co., Ltd.

发明人： MA, Zhiyu ,  MA, Yiming ,  LI, Teng ,  ZHANG, Haoqian

IPC分类号： C08L67/04 ,  C08K5/20 ,  C08K5/09 ,  C08K5/05

摘要： The present invention relates to the field of biodegradable materials, and specifically provides a polyhydroxyalkanoate composition comprising a crystallization accelerator, and a molded body. The polyhydroxyalkanoate composition comprises polyhydroxyalkanoate and a crystallization accelerator, wherein the crystallization accelerator is one or more of fatty acid amide compounds. By selecting fatty acid amide as the crystallization accelerator of polyhydroxyalkanoate, the composition provided by the present invention provides a certain time guarantee for the crystallization of the molded body, promotes the crystallization and molding of polyhydroxyalkanoate, and at the same time, solves the problem that the polyhydroxyalkanoate resin is adhered to processing equipment parts in the process of processing the polyhydroxyalkanoate molded body in the prior art, and improves the processing efficiency of preparing the molded body.