公开(公告)号：US20210163350A1

公开(公告)日：2021-06-03

申请号：US17257345

申请日：2019-06-27

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Thomas MEIER ,  Natalie Beatrice Janine HERLE ,  Leander VERBELEN ,  Stefan JOSUPEIT

IPC: C03C25/328 ,  C04B35/532 ,  C04B35/524 ,  C04B35/515 ,  C04B35/14 ,  C04B35/16 ,  C04B35/628 ,  C04B35/626 ,  C04B35/634 ,  C04B35/64 ,  C03C1/02 ,  C03C12/00 ,  C03B37/16 ,  B33Y70/10 ,  D01F11/08 ,  D01F11/14

Abstract: A process for the production of sinter powder particles (SP), comprising the steps a) providing at least one continuous filament, b) coating, the at least one continuous filament provided in step a) with at least one thermoplastic polymer to obtain a continuous strand comprising the at least one continuous filament, coated with the at least one thermoplastic polymer, wherein the average cross-sectional diameter of the strand is in the range of 10 to 300 pm, and c) size reducing of the continuous strand provided in step b) in order to obtain the sinter powder particles (SP), wherein the average length of the sinter powder particles (SP) is in the range of 10 to 300 pm. The present invention further relates to sinter powder particles (SP) obtained by the process, the use of the sinter powder particles (SP) in a powder-based additive manufacturing process and sinter powder particles (SP) having an essentially cylindrical shape N as well as a process for the production of a shaped body by laser sintering or high-speed sintering of sinter powder particles (SP).

公开(公告)号：US20190071568A1

公开(公告)日：2019-03-07

申请号：US15999324

申请日：2017-02-16

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Simon GRAMLICH ,  Rainer OSTERMANN ,  Florian RICHTER ,  Raphael DABBOUS ,  Thomas MEIER ,  Wolfgang SCHROF

IPC: C08L77/06 ,  C08K5/357 ,  C08K5/46 ,  C08L77/02 ,  C08K5/3465 ,  C09B67/02 ,  B29C64/153

Abstract: The present invention relates to a polyamide composition (PC) which comprises at least one polyamide (P) and at least one additive (A). The present invention further relates to the use of the polyamide composition (PC) in a selective laser sintering process, in an injection molding process, for producing molded articles and in an extrusion process.

公开(公告)号：US20190177537A1

公开(公告)日：2019-06-13

申请号：US16321086

申请日：2017-07-21

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Florian RICHTER ,  Philipp KLOKE ,  Thomas MEIER ,  Klaus STOLL

IPC: C08L77/02 ,  B29C64/153 ,  B33Y10/00 ,  B33Y70/00

Abstract: The present invention relates to a process for producing a shaped body by selective laser sintering of a sinter powder (SP). The sinter powder (SP) comprises at least one semicrystalline polyimide and at least one nylon-6I/6T. The present invention further relates to a shaped body obtainable by the process of the invention and to the use of nylon-6I/6T in a sinter powder (SP) for broadening the sintering window (WSP) of the sinter powder (SP).

公开(公告)号：US20190160737A1

公开(公告)日：2019-05-30

申请号：US16321089

申请日：2017-07-21

Applicant: BASF SE

Inventor： CLAUS GABRIEL ,  Natalie Beatrice Janine HERLE ,  Thomas MEIER

IPC: B29C64/153 ,  C08K7/06 ,  C08K7/08 ,  C08K7/10 ,  C08K7/14 ,  C08L77/06

Abstract: The present invention relates to a process for producing a shaped body by selective laser sintering of a sinter powder (SP). The sinter powder (SP) comprises at least one semicrystalline polyamide, at least one nylon-6I/6T and at least one reinforcing agent. The present invention further relates to a shaped body obtainable by the process of the invention and to the use of nylon-6I/6T in a sinter powder (SP) comprising at least one semicrystalline polyamide, at least one nylon-6I/6T and at least one reinforcing agent for broadening the sintering window (WSP) of the sinter powder (SP).

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).

公开(公告)号：US20220010133A1

公开(公告)日：2022-01-13

申请号：US17280715

申请日：2019-09-25

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Thomas MEIER ,  Clemens GOTTKE ,  Angelika ZEPP

IPC: C08L77/06 ,  C08L77/02 ,  C09D5/03 ,  C09D177/06 ,  C09D177/02 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/118 ,  B29C64/153

Abstract: The present invention relates to a sinter powder (SP) comprising a first polyamide component (PA1) and a second polyamide component (PA2), where the melting point of the second polyamide component (PA2) is higher than the melting point of the first polyamide component (PA1). 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, and to a shaped body obtainable by the methods of the invention. The present invention further relates to a method of producing the sinter powder (SP).