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公开(公告)号：US20200023577A1
公开(公告)日：2020-01-23
申请号：US15999529
申请日：2017-02-16
申请人： BASF SE
发明人： Rainer OSTERMANN , Claus GABRIEL , Thomas MEIER , Simon GRAMLICH
IPC分类号： B29C64/153 , C08L77/02 , C08L77/06 , C08K5/46 , C08K5/3465 , C08K5/357
摘要： 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).
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公开(公告)号：US20190177467A1
公开(公告)日：2019-06-13
申请号：US16310250
申请日：2017-06-14
申请人： BASF SE
摘要： The invention relates to a process for preparing a polyamide dispersion in polyol, the polyamide dispersion in polyol thus obtained, the use of a polyether amine in the preparation of the polyamide dispersion in polyol, the use of the polyamide dispersion in polyol for preparing a polyurethane, a respective process and the polyurethane.
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3.发明申请METHOD FOR PRODUCING POLYAMIDES BY MEANS OF A SPRAY NOZZLE ARRANGEMENT FOR THE COLLISION OF SPRAY JETS 审中-公开通过喷雾喷嘴布置喷射喷嘴的方法生产聚氨酯的方法公开(公告)号：US20160325265A1
公开(公告)日：2016-11-10
申请号：US15104728
申请日：2014-12-17
申请人： BASF SE
发明人： NING ZHU , Rainer OSTERMANN , Heinrich SACK , Alexander GOETZ , Achim STAMMER , Dirk SIMON
摘要： The invention relates to a method for producing polyamides by means of a spray nozzle arrangement for the collision of spray jets, comprising at least one spray nozzle forming a first spray jet having a first spray jet cross-sectional surface and a first spray jet longitudinal extension axis, and comprising a second spray jet forming a second spray jet having a second spray jet cross-sectional surface and a second spray jet longitudinal extension axis, wherein the first and second spray jets have a spray direction that is facing the gravitational field, and are arranged opposite one another such that in a spray direction facing the gravitational field, the formed spray jets collide in a collision area. The invention is characterized in that the angle between the first and the second spray jet is in the range of 5° to 170°, and that the first and second spray nozzles are arranged such that upon colliding, the first spray jet cross-sectional surface of the first spray jet forms an intersection with the second spray jet cross-sectional surface of the second spray jet.
摘要翻译： 本发明涉及一种通过用于喷射射流碰撞的喷嘴装置来生产聚酰胺的方法，该方法包括形成具有第一喷射横截面和第一喷射射流纵向延伸部分的第一喷射射流的至少一个喷嘴 并且包括形成具有第二喷射横截面和第二喷射射流纵向延伸轴线的第二喷射射流的第二喷射射流，其中所述第一和第二喷射喷嘴具有面向重力场的喷射方向，以及 彼此相对布置，使得在面向重力场的喷射方向上，所形成的喷射射流在碰撞区域中碰撞。 本发明的特征在于，第一和第二喷射射流之间的角度在5°至170°的范围内，并且第一和第二喷嘴布置成使得在碰撞时，第一喷射截面 的第一喷射喷嘴形成与第二喷射射流的第二喷射横截面的交点。
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公开(公告)号：US20210206941A1
公开(公告)日：2021-07-08
申请号：US15999522
申请日：2017-02-16
申请人： BASF SE
摘要： 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.
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公开(公告)号：US20210206919A1
公开(公告)日：2021-07-08
申请号：US15999520
申请日：2017-02-16
申请人： BASF SE
发明人： Angela ULZHÖFER , Simon GRAMLICH , Rainer OSTERMANN , Achim STAMMER , Dirk SIMON , Ning ZHU
摘要： Process for producing polyamide powders by precipitation The present invention relates to a process for producing polyamide powders and to the polyamide powders obtainable by this process. The present invention additionally relates to the use of the polyamide powder as sintering powder in selective laser sintering.
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公开(公告)号：US20190071568A1
公开(公告)日：2019-03-07
申请号：US15999324
申请日：2017-02-16
申请人： BASF SE
发明人： Claus GABRIEL , Simon GRAMLICH , Rainer OSTERMANN , Florian RICHTER , Raphael DABBOUS , Thomas MEIER , Wolfgang SCHROF
IPC分类号： C08L77/06 , C08K5/357 , C08K5/46 , C08L77/02 , C08K5/3465 , C09B67/02 , B29C64/153
摘要： 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.
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