公开(公告)号：US20240247103A1

公开(公告)日：2024-07-25

申请号：US18289857

申请日：2022-05-16

Applicant: Jabil Inc.

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

IPC: C08G67/02 ,  B29B13/02 ,  B29K71/00 ,  B33Y70/00 ,  C08J3/14

CPC classification number: C08G67/02 ,  B29B13/021 ,  B33Y70/00 ,  C08J3/14 ,  B29K2071/00 ,  B29K2995/004 ,  C08J2373/00

Abstract: In one instance a semicrystalline polyketone powder useful for additive manufacturing is comprised of a bimodal melt peak determined by an initial differential scanning calorimetry (DSC) scan at 20° C./min and a D90 particle size of at most 300 micrometers and average particle size of 1 micrometer to 150 micrometers equivalent spherical diameter. In another instance, A composition is comprised of a semicrystalline polyketone powder having a melt peak and a recrystallization peak, wherein the melt peak and recrystallization peak fail to overlap.

公开(公告)号：US20230340211A1

公开(公告)日：2023-10-26

申请号：US18304997

申请日：2023-04-21

Applicant: Jabil Inc.

Inventor： Thomas Fry ,  Michael Frye ,  Nicholas John Dippel

IPC: C08J3/16 ,  C08J3/11 ,  C09D5/03 ,  C09D167/00 ,  C09D175/04

CPC classification number: C08J3/16 ,  C08J3/11 ,  C09D5/031 ,  C09D167/00 ,  C09D175/04 ,  C08J2367/00 ,  C08J2375/00

Abstract: Spherical thermoplastic polymer powders useful for additive manufacturing may be made at high throughputs by a method comprising polymer in a dispersing medium at a temperature above the polymer melting temperature (Tm) under shear for short times (e.g., less than 30 minutes) to form a mixture that is then rapid (faster than ambient cooling) cooled below Tm. The method is particularly useful for thermoplastic polymers having a high melt flow index (MFI) or low capillary viscosity at high shear (˜1000 s−1) within 20 or 30° C. of the polymer's melt temperature. The method may also include a crystallizing temperature below Tm and above the glass transition temperature Tg of the polymer to crystallize amorphous polymers or increase the crystallinity of semi-crystalline polymers.

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.

公开(公告)号：US20240270905A1

公开(公告)日：2024-08-15

申请号：US18289865

申请日：2022-05-16

Applicant: Jabil Inc.

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

IPC: C08G67/02 ,  C08J3/14 ,  C08J9/36

CPC classification number: C08G67/02 ,  C08J3/14 ,  C08J9/36 ,  C08J2201/054 ,  C08J2373/00

Abstract: A semicrystalline poly ketone 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.

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：US20220363825A1

公开(公告)日：2022-11-17

申请号：US17745169

申请日：2022-05-16

Applicant: Jabil Inc.

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

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

Abstract: In one instance a semicrystalline polyketone powder useful for additive manufacturing is comprised of a bimodal melt peak determined by an initial differential scanning calorimetry (DSC) scan at 20° C./min and a D90 particle size of at most 300 micrometers and average particle size of 1 micrometer to 150 micrometers equivalent spherical diameter. In another instance, A composition is comprised of a semicrystalline polyketone powder having a melt peak and a recrystallization peak, wherein the melt peak and recrystallization peak fail to overlap.