公开(公告)号：US12209200B2

公开(公告)日：2025-01-28

申请号：US17583671

申请日：2022-01-25

Applicant: LUMAS Polymers LLC

Inventor： Thomas George Gardner ,  John Gordon Eue

IPC: C08G75/23 ,  B29C64/153 ,  B29C64/314 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C08J3/09 ,  C08J3/11 ,  C09D181/06

Abstract: A semicrystalline polyarylethersulfone (PAES) useful for additive manufacturing may be made by a method comprising: dissolving an amorphous polyarylethersulfone in a polar aprotic halogenated hydrocarbon solvent at a temperature adequate to effectively form a solution, and subsequently and spontaneously bring about reprecipitation of a semicrystalline polyarylethersulfone from the solution. The semicrystalline polyarylethersulfone may have a crystallinity of at least 30% by weight. The semicrystalline PAES, upon being heated, melting and uniting together in layers during additive manufacturing cools without substantially recrystallizing, allows for deformation-free articles to be formed having low residual stress.