公开(公告)号：WO2020252224A1

公开(公告)日：2020-12-17

申请号：PCT/US2020/037366

申请日：2020-06-12

Applicant: 3D SYSTEMS, INC.

Inventor： SHIR, Meisam ,  MOUSSA, Khalil

IPC: C08F210/06 ,  B29C64/00

Abstract: Polypropylene-based powders are provided for use in the production of various articles by one or more additive manufacturing techniques. As described further herein, the polypropylene-based powders can exhibit particle morphologies, particle size distributions, and/or compositional parameters advantageous for production of articles having enhanced mechanical properties. In one aspect, a powder composition comprises particles of copolymer or terpolymer having a spherical shape, spheroidal shape, or a mixture of spherical and spheroidal shapes, the copolymer or terpolymer comprising one or more alkene monomeric species and the balance polypropylene.