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：US20230339152A1

公开(公告)日：2023-10-26

申请号：US18037095

申请日：2021-11-12

Applicant: BASF SE

Inventor： Florian FISCHER ,  Leander VERBELEN ,  Erika FANTINO ,  Lisa Marie SCHMIDT ,  Eva Anna HAASE

IPC: B29C44/12 ,  B32B5/18 ,  B32B5/32 ,  B29C44/44

CPC classification number: B29C44/1285 ,  B32B5/18 ,  B32B5/32 ,  B29C44/445 ,  B29K2105/04

Abstract: The present invention relates to a process for the production of a composite article comprising a structured porous body (PB) and a particle foam (PF), wherein the provided structured porous body (PB) is inserted into a mould (M) and the mould (M) is filled with expanded foam beads (EFB) so that the expanded foam beads (EFB) are in contact with each other and the structured porous body (PB) is at least partially in contact with the expanded foam beads (EFB). Then, the expanded foam beads (EFB) are thermally welded, wherein the particle foam (PF) is built and the composite article is obtained. Moreover, the present invention relates to a composite article obtained by this process, as well as to a composite article comprising a structured porous body (PB) and a particle foam (PF). The present invention further relates to the use of the inventive composite articles in the shoe industry, in the sports and leisure sector, in vehicle construction, in the medical sector, in mechanical engineering and in the logistics sector. Furthermore, the present invention relates to a composite article comprising a structured porous body (PB) and a foam (F), wherein the structured porous body (PB) and the foam (F) comprise the same polymer (P).

公开(公告)号：US20230279237A1

公开(公告)日：2023-09-07

申请号：US18019254

申请日：2021-07-27

Applicant: BASF SE

Inventor： Leander VERBELEN ,  Rajan HOLIMANN ,  Jean ROCHETTE ,  Frank SCHAEFER ,  Viktor FISCHER ,  Andre METZGER ,  Sinan KURT

IPC: C09D5/03 ,  C09D7/61 ,  C09D7/63 ,  C09D7/80 ,  C09D175/04

CPC classification number: C09D5/037 ,  C09D5/031 ,  C09D7/61 ,  C09D7/63 ,  C09D7/80 ,  C09D175/04 ,  C08K13/04

Abstract: The present invention relates to a sinter powder (SP) comprising 59.5% to 99.85% by weight of at least one thermoplastic polyurethane (A), 0.05% to 0.5% by weight of at least one flow agent (B), 0.1% 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). The present invention further relates to a method of producing a shaped body by sintering the sinter powder (SP), to a shaped body obtainable by the method of the invention, and to the use of at least one flow agent (B) and at least one organic additive (C) in a sinter powder (SP) to improve the flowability and coalescence of the sinter powder (SP). The present invention further relates to the use of the sinter powder (SP) in a sintering method, and to a method of producing the sinter powder (SP).

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).