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：US20230082902A1

公开(公告)日：2023-03-16

申请号：US17783278

申请日：2020-11-17

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Jordan Thomas KOPPING ,  Thomas MEIER ,  Erik GUBBELS ,  Ruth LOHWASSER ,  Simon KNIESEL

IPC: B29C64/153 ,  C08L67/02 ,  B33Y70/00 ,  C08G63/183 ,  C08J3/12

Abstract: The present invention relates to a sinter powder (SP) comprising at least one semicrystalline terephthalate polyester (A) which is prepared by reacting at least one aromatic dicarboxylic acid (a) and at least two aliphatic diols (b1) and (b2), where the aliphatic diol (b1) is neopentyl glycol. The present invention further relates to a method of producing the sinter powder (SP), and to a method of producing a shaped body by sintering the sinter powder (SP). The present invention further relates to the shaped body obtainable by the sintering. The present invention also relates to the use of the sinter powder (SP) in a sintering method.

公开(公告)号：US20200230875A1

公开(公告)日：2020-07-23

申请号：US16652444

申请日：2018-10-01

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Thomas MEIER ,  Natalie Beatrice Janine HERLE ,  Leander VERBELEN ,  Kara Ann NOACK

IPC: B29C64/153 ,  B33Y10/00 ,  B29C64/268 ,  B33Y70/00 ,  B29B9/12 ,  B29C64/314 ,  C08L77/02

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 near infrared reflector 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 the sinter powder (SP) obtainable by this process, and to the use of a near infrared reflector in a sinter powder (SP). The present invention also relates to a shaped body obtainable by the process of the invention.

公开(公告)号：US20240279507A1

公开(公告)日：2024-08-22

申请号：US18571874

申请日：2022-06-08

Applicant: BASF SE

Inventor： Stephan DOHMEN ,  Elmar POESELT ,  Claus GABRIEL ,  Leander VERBELEN ,  Florian A. DEME ,  Jocelyn SALAS LAZO ,  Jean ROCHETTE

IPC: C09D175/06 ,  B29B13/10 ,  B29C64/153 ,  B29K75/00 ,  B29K105/00 ,  B29K105/12 ,  B29K105/16 ,  B29K307/04 ,  B29K309/02 ,  B29K309/08 ,  B33Y10/00 ,  B33Y70/00 ,  C09D5/03 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D7/80 ,  C09D175/08

CPC classification number: C09D175/06 ,  B29B13/10 ,  B33Y70/00 ,  C09D5/031 ,  C09D5/032 ,  C09D5/037 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D7/80 ,  C09D175/08 ,  B29C64/153 ,  B29K2075/00 ,  B29K2105/0005 ,  B29K2105/122 ,  B29K2105/16 ,  B29K2105/251 ,  B29K2307/04 ,  B29K2309/02 ,  B29K2309/08 ,  B33Y10/00

Abstract: The present invention relates to a sinter powder (SP) comprising 58.5% to 99.95% by weight of at least one thermoplastic polyurethane (A), 0.05% to 1.5% by weight of at least one flow agent (B), 0% to 5% by weight of at least one organic additive (C), 0% to 5% by weight of at least one further additive (D) and 0% to 30% by weight of at least one reinforcer (E), based in each case on the sum total of the percentages by weight (A), (B), (C), (D) and (E), wherein the thermoplastic polyurethane (A) is prepared by reacting at least one isocyanate (a), at least one isocyanate-reactive compound (b), and at least one chain extender (c), and wherein components (a), (b) and (c) each comprise not more than 15 mol-% of aromatic moieties, based on the total amount of the respective component (a), (b) and (c). The present invention further relates to a method of producing the sinter powder (SP) and to the use of the sinter powder (SP) in a three-dimensional (3D) printing process. The present invention further relates to a three-dimensional shaped article comprising the thermoplastic polyurethane (A), to a method of producing a three-dimensional shaped article and to the use of the at least one thermoplastic polyurethane (A) in a three-dimensional (3D) printing process for producing a three-dimensional shaped article to improve the energy return of the three-dimensional shaped article.

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).

公开(公告)号：US20210206941A1

公开(公告)日：2021-07-08

申请号：US15999522

申请日：2017-02-16

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Ruth LOHWASSER ,  Rainer OSTERMANN ,  Simon GRAMLICH ,  Philipp KLOKE

IPC: C08K3/34 ,  C08G69/14 ,  C08L77/02 ,  C08L77/06 ,  B29C64/153 ,  B33Y10/00 ,  B33Y70/10

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 polyimide (P) and in the range from 10% to 50% by weight of at least one aluminosilicate. The at least one aluminosilicate has a D50 in the range from 2.5 to 4.5 μm. The present invention further relates to shaped bodies obtainable by the process of the invention.

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：US20250066608A1

公开(公告)日：2025-02-27

申请号：US18727746

申请日：2023-01-10

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Clemens GOTTKE

IPC: C08L77/02 ,  B29C64/153 ,  B29K77/00 ,  B29K105/06 ,  B33Y70/00 ,  C08K3/013 ,  C08K11/00

Abstract: The present invention relates to a sinter powder (SP) comprising at least one polyamide MXD6 (A), at least one semicrystalline polyamide (B), optionally at least one additive (C) and optionally at least one reinforcer (D). The present invention further relates to a method of producing a shaped body using the inventive sinter powder (SP), to a shaped body obtained by this method and to the use of the inventive sinter powder (SP) in a sintering method. In addition, the present invention relates to a method of producing the sinter powder (SP) and to the use of at least one semicrystalline polyamide (B) in a sinter powder (SP) comprising at least one polyamide MXD6 (A) for improving the mechanical properties of shaped bodies made from said sinter powder (SP).

公开(公告)号：US20240359399A1

公开(公告)日：2024-10-31

申请号：US18682617

申请日：2022-08-03

Applicant: BASF SE

Inventor： Claus GABRIEL ,  Clemens GOTTKE ,  Bernhard KREN

IPC: B29C64/153 ,  B29C64/268 ,  B29C64/314 ,  B29K77/00 ,  B29K105/00 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10

CPC classification number: B29C64/153 ,  B29C64/268 ,  B29C64/314 ,  B29K2077/00 ,  B29K2105/0044 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/10

Abstract: The present invention relates to a method of producing a shaped body, wherein, in step i), a layer of an amorphous sinter powder (SP) comprising at least 70% by weight of at least one amorphous polyamide selected from the group consisting of polyamide 6I/6T and polyamide DT/DI is provided, and, in step ii), the layer provided in step i) is selectively sintered. The present invention further relates to a method of producing an amorphous sinter powder (SP) and to an amorphous sinter powder (SP) obtainable by that method. The present invention also relates to use of the amorphous sinter powder (SP) in a sintering method, and to shaped bodies obtainable by the method of the invention.