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：US20190168450A1

公开(公告)日：2019-06-06

申请号：US16321079

申请日：2017-07-21

Applicant: BASF SE

Inventor： CLAUS GABRIEL ,  Martin WEBER ,  Philipp KLOKE ,  Thomas MEIER

IPC: B29C64/153 ,  C08L77/02 ,  C08L71/12

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 polyaryl ether. The present invention further relates to a shaped body obtainable by the process of the invention and to the use of a polyaryl ether in a sinter powder (SP) for broadening the sintering window (WSP) of the sinter powder (SP).