公开(公告)号：US20230357569A1

公开(公告)日：2023-11-09

申请号：US18022761

申请日：2021-08-24

Applicant: BASF SE

Inventor： Simone SCHILLO ,  Claus GABRIEL ,  Angelika ZEPP ,  Christian LEMAIRE ,  Moritz KOENIG ,  Matthias FISCHER ,  Tim MOSTBERGER ,  Jessica GOERICH

IPC: B29B7/88 ,  B33Y70/00 ,  B29B7/00 ,  C08L77/06 ,  C08K5/5313 ,  C08K3/22

CPC classification number: C08L77/06 ,  B29B7/007 ,  B29B7/88 ,  B33Y70/00 ,  C08K3/22 ,  C08K5/5313 ,  B29C2948/92019 ,  B29C2948/92209 ,  B29L2031/731 ,  C08K2003/2224 ,  C08K2201/003

Abstract: The present invention relates to a filament for 3D printing, comprising (A) at least one semicrystalline polyamide, (B) at least one amorphous polyamide (C) at least one flame retardant of formula (I), wherein R1 and R2 are independently of each other a linear or branched C1-C8alkyl group, or an optionally substituted aryl group, M represents is an alkali metal ion, an alkaline earth metal ion, an aluminum ion, a zinc ion, an iron ion or a boron ion; m represents 1, 2 or 3; and n represents 1, 2 or 3, a process for the preparation of the filament and its use in a process for preparation of a three-dimensional object, by a fused filament fabrication process.

公开(公告)号：US20210332232A1

公开(公告)日：2021-10-28

申请号：US17272331

申请日：2019-08-21

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Angelika ZEPP ,  Thomas MEIER ,  Natalie Beatrice Janine HERLE

IPC: C08L67/02 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  B29C64/153 ,  B29C64/314

Abstract: The present invention relates to a sinter powder (SP) comprising at least one semicrystalline terephthalate polyester (A), at least one amorphous terephthalate polyester (B) and at least one phosphinic salt (C). The present invention further relates to a method of producing a shaped body by sintering the sinter powder (SP) or by an FFF (fused filament fabrication) method, to a shaped body obtainable by the method of the invention, and to the use of a phosphinic salt in a sinter powder (SP) for broadening the sintering window (WSP) of the sinter powder (SP).

公开(公告)号：US20210268726A1

公开(公告)日：2021-09-02

申请号：US17256410

申请日：2019-06-25

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Sebastian WAGNER ,  Natalie Beatrice Janine HERLE ,  Thomas MEIER

IPC: B29C64/153 ,  B33Y70/10 ,  B33Y10/00 ,  C08L77/06 ,  C08K5/053 ,  B33Y40/10 ,  B29C64/314

Abstract: The present invention relates to a method of producing a shaped body, wherein, in step i), a layer of a sinter powder (SP) comprising at least one polyhydric alcohol inter alia is provided and, in step ii), the layer provided in step i) is exposed. The present invention further relates to a method of producing a sinter powder (SP) and to a sinter powder (SP) obtainable by this method. The present invention also relates to use of the sinter powder (SP) in a sintering method, and shaped bodies obtainable by the method of the invention.

公开(公告)号：US20200230876A1

公开(公告)日：2020-07-23

申请号：US16652839

申请日：2018-10-01

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Natalie Beatrice Janine HERLE ,  Thomas MEIER ,  Michael ROTH

IPC: B29C64/153 ,  B29C64/165

Abstract: The present invention relates to a process for producing a shaped body, wherein, in step i), a layer of a sinter powder (SP) comprising at least one mineral flame retardant inter alia is provided and, in step ii), the layer provided in step i) is exposed. The present invention further relates to a process for producing a sinter powder (SP) and to a sinter powder (SP) obtainable by this process. The present invention also relates to the use of the sinter powder (SP) in a sintering process and to shaped bodies obtainable by the process of the invention.

公开(公告)号：US20200023577A1

公开(公告)日：2020-01-23

申请号：US15999529

申请日：2017-02-16

Applicant: BASF SE

Inventor： Rainer OSTERMANN ,  Claus GABRIEL ,  Thomas MEIER ,  Simon GRAMLICH

IPC: B29C64/153 ,  C08L77/02 ,  C08L77/06 ,  C08K5/46 ,  C08K5/3465 ,  C08K5/357

Abstract: The present invention relates to a process for producing shaped bodies by selective laser sintering of a sinter powder (SP) comprising a polyamide (P) and 0.1% to 5% by weight of at least one additive (A). The present invention also relates to shaped bodies comprising polyamide (P) and 0.1% to 5% by weight of at least one additive (A). The present invention further relates to the production of sinter powders (SP) comprising polyamide (P) and 0.1% to 5% by weight of at least one additive (A).

公开(公告)号：US20200010627A1

公开(公告)日：2020-01-09

申请号：US16482490

申请日：2018-01-25

Applicant: BASF SE

Inventor： SIMON GRAMLICH ,  Thomas MEIER ,  Claus GABRIEL ,  Natalie HERLE

IPC: C08J3/14 ,  B33Y70/00 ,  B29C64/314 ,  B33Y40/00 ,  C08J3/20

Abstract: The present invention relates to a process for producing a polyamide powder (PP) comprising at least one semicrystalline polyamide (P) and at least one additive (A). The semicrystalline polyamide (P) and the at least one additive (A) are initially compounded with one another in an extruder and subsequently introduced into a solvent (SV) in which the at least one semicrystalline polyamide (P) then crystallizes to obtain the polyamide powder (PP). The present invention further relates to the thus obtainable polyamide powder (PP) and to the use of the polyamide powder (PP) as sintering powder (SP) and also to a process for producing a shaped body by selective laser sintering of a polyamide powder (PP).