公开(公告)号：US20220251416A1

公开(公告)日：2022-08-11

申请号：US17583671

申请日：2022-01-25

Applicant: Jabil Inc.

Inventor： Thomas George Gardner ,  John Gordon Eue

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

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.

公开(公告)号：US20220380565A1

公开(公告)日：2022-12-01

申请号：US17745219

申请日：2022-05-16

Applicant: Jabil Inc.

Inventor： Nicholas John Dippel ,  Steven Kubiak ,  Zachary Peterson ,  Mathew Artin Torosian ,  John Gordon Eue ,  Thomas Fry

IPC: C08J9/00 ,  C08J9/36 ,  B29B9/02

Abstract: Useful thermoplastic polymer powders are formed by a method comprising: cooling a foam comprised of a thermoplastic foam below the brittleness temperature of the thermoplastic polymer, wherein the foam has an average strut dimension of 10 to 500 micrometers, and comminuting the cooled foam to form a thermoplastic polymer powder. The method allows for the efficient grinding of the thermoplastic polymer having improved morphology and desirable characteristics such as dry flow without flow aids.

公开(公告)号：US11845833B2

公开(公告)日：2023-12-19

申请号：US17745219

申请日：2022-05-16

Applicant: Jabil Inc.

Inventor： Nicholas John Dippel ,  Steven Kubiak ,  Zachary Peterson ,  Mathew Artin Torosian ,  John Gordon Eue ,  Thomas Fry

IPC: B29B9/02 ,  C08G67/02 ,  B33Y70/00 ,  B29C64/314 ,  B33Y40/10 ,  C09D5/03 ,  C09D173/00 ,  C08J9/00 ,  C08J9/36 ,  B29K61/00

CPC classification number: C08G67/02 ,  B29B9/02 ,  B29C64/314 ,  B33Y40/10 ,  B33Y70/00 ,  C08J9/0004 ,  C08J9/36 ,  C09D5/031 ,  C09D173/00 ,  B29K2061/00 ,  B29K2995/004 ,  C08G2150/20 ,  C08J2361/02

Abstract: Useful thermoplastic polymer powders are formed by a method comprising: cooling a foam comprised of a thermoplastic foam below the brittleness temperature of the thermoplastic polymer, wherein the foam has an average strut dimension of 10 to 500 micrometers, and comminuting the cooled foam to form a thermoplastic polymer powder. The method allows for the efficient grinding of the thermoplastic polymer having improved morphology and desirable characteristics such as dry flow without flow aids.

公开(公告)号：US20220363826A1

公开(公告)日：2022-11-17

申请号：US17745274

申请日：2022-05-16

Applicant: Jabil Inc.

Inventor： Thomas Fry ,  John Gordon Eue ,  Steven Kubiak ,  Zachary Peterson ,  Nicholas John Dippel ,  Mathew Artin Torosian

IPC: C08G67/02 ,  C09D5/03 ,  C09D173/00 ,  B33Y40/10 ,  B33Y70/00 ,  B29C64/314

Abstract: A semicrystalline polyketone powder useful for additive manufacturing may be made by dissolving a polyketone having differential scanning calorimetry (DSC) monomodal melt peak, at a temperature above 50° C. to below the melt temperature of the polyketone, precipitating the dissolved polyketone by cooling, addition of a nonsolvent or combination thereof. The method may be used to form polyketones having a DSC melt peak with an enthalpy greater than the starting polyketone.