公开(公告)号：US08629237B2

公开(公告)日：2014-01-14

申请号：US13682091

申请日：2012-11-20

Applicant: BASF SE

Inventor： Rüdiger Häffner ,  Faissal-Ali El-Toufaili ,  Achim Stammer ,  Rolf-Egbert Grützner ,  Angela Ulzhöfer ,  Jens Becker

IPC: C08G63/02 ,  C08G64/00

CPC classification number: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for producing polyamides from the corresponding monomers and/or prepolymers comprises the steps of (a) reacting the monomers and/or prepolymers and optionally further components under polyamide-forming reaction conditions to form polyamide, (b) treating the polyamide obtained in step (a) in a kneader above the melting temperature of the polyamide, (c) further processing the polyamide from step (b) into pellet, film, fiber or moldings, preferably pelletizing the polyamide, (d) extracting some or all unconverted monomers and any product dimers and oligomers and also optionally further components from the polyamide and/or drying the polyamide.

Abstract translation: 从相应的单体和/或预聚物制备聚酰胺的方法包括以下步骤：（a）在聚酰胺形成反应条件下使单体和/或预聚物和任选的其它组分反应形成聚酰胺，（b）处理步骤 （a）在高于聚酰胺熔融温度的捏合机中，（c）将步骤（b）中的聚酰胺进一步加工成颗粒，膜，纤维或模制品，优选将聚酰胺造粒，（d）提取一些或所有未转化的单体和 任何产物二聚体和低聚物，并且还任选地来自聚酰胺的另外的组分和/或干燥聚酰胺。

公开(公告)号：US20130131305A1

公开(公告)日：2013-05-23

申请号：US13682091

申请日：2012-11-20

Applicant: BASF SE

Inventor： Rüdiger Häffner ,  Faissal-Ali El-Toufaili ,  Achim Stammer ,  Rolf-Egbert Grützner ,  Angela Ulzhöfer ,  Jens Becker

IPC: C08G69/00

CPC classification number: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for producing polyamides from the corresponding monomers and/or prepolymers comprises the steps of (a) reacting the monomers and/or prepolymers and optionally further components under polyamide-forming reaction conditions to form polyamide, (b) treating the polyamide obtained in step (a) in a kneader above the melting temperature of the polyamide, (c) further processing the polyamide from step (b) into pellet, film, fiber or moldings, preferably pelletizing the polyamide, (d) extracting some or all unconverted monomers and any product dimers and oligomers and also optionally further components from the polyamide and/or drying the polyamide.

Abstract translation: 从相应的单体和/或预聚物制备聚酰胺的方法包括以下步骤：（a）在聚酰胺形成反应条件下使单体和/或预聚物和任选的其它组分反应形成聚酰胺，（b）处理步骤 （a）在高于聚酰胺熔融温度的捏合机中，（c）将步骤（b）中的聚酰胺进一步加工成颗粒，膜，纤维或模制品，优选将聚酰胺造粒，（d）提取一些或所有未转化的单体和 任何产物二聚体和低聚物，并且还任选地来自聚酰胺的其它组分和/或干燥聚酰胺。

公开(公告)号：US20140350213A1

公开(公告)日：2014-11-27

申请号：US13934849

申请日：2013-07-03

Applicant: BASF SE

Inventor： Faissal-Ali El-Toufaili ,  Achim Stammer ,  Jens Becker ,  Karsten Daunke ,  Thomas Sauer

IPC: C08G69/16

CPC classification number: C08G69/16 ,  C08G69/46 ,  C08L77/06

Abstract: The present invention relates to a process for purifying polyamide particles wherein these are contacted with a lactam-containing treatment medium with or without a gaseous treatment medium.

Abstract translation: 本发明涉及一种纯化聚酰胺颗粒的方法，其中这些方法与含有或不含气态处理介质的含内酰胺处理介质接触。