Novick, Kim & Lee, PLLC
Aliphatic polyester resin powder suitable for selective laser sintering and its preparation method
A method for preparing an aliphatic polyester resin powder includes the steps ofa) heat dissolving a crystalline aliphatic polyester resin in an organic solvent to obtain an aliphatic polyester resin solution;b) cooling the aliphatic polyester resin solution to precipitate a solid, thereby obtaining a solid-liquid mixture;c) optionally adding an adjuvant to the solid-liquid mixture and mixing; andd) conducting solid-liquid separation and drying to obtain an aliphatic polyester resin powder suitable for selective laser sintering.The crystalline aliphatic polyester resin powder obtained has good antioxidant property, good powder flowability, moderate size, smooth surface, suitable bulk density, and suitable dispersibility and particle size distribution. The aliphatic polyester resin powder is particularly suitable for selective laser sintering method.
BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION CHINA PETROLEUM & CHEMICAL CORPORATION
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Jianye Mu Baige Liying Yiqing Dali Shijun Hao Yihui Jingbo Ruoshi Liqiu Meng Yun
Liu Dong Chou Zhang Bai Gao Zhang Zou Xu Shao Chen Chu Xu Lyu