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：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：US20190264029A1

公开(公告)日：2019-08-29

申请号：US16307723

申请日：2017-06-08

Applicant: BASF SE

Inventor： Ruth LOHWASSER ,  Natalie Beatrice Janine HERLE ,  Rosa CORBERAN ROC ,  Axel HUST

IPC: C08L77/06 ,  C08L23/22 ,  C08L77/02 ,  C08L35/00 ,  B29C45/00

Abstract: A thermoplastic molding composition containing A) 20 to 99.9 wt % of a thermoplastic polyamide, B) 0.1 to 40 wt % of an alkenylsuccinic acid derivative obtained by reaction of polyiso-butene (B1) having a number-average molecular weight Mn of 10,000 to 50,000 at temperatures of 180° C. to 250° C. with maleic acid or derivatives thereof (B2) in a stoichiometric ratio of at least 2 equivalents of α,β-unsaturated mono- and dicarboxylic acid or derivatives thereof (B2) per reactive double bond in the polyisobutene (B1) for a duration of at least 15 minutes to 10 hours and up to 10 bar of positive pressure, wherein the derivatives are anhydrides, mono- or dialkyl esters, and mixed esters, and wherein the reactive double bonds are the sum total of the terminal α- and β-double bonds in the polyisobutene (B1), and C) 0 to 60 wt % of further additives, wherein the weight percentages for the components A) to C) sum to 100%.

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.