公开(公告)号：EP2897934A1

公开(公告)日：2015-07-29

申请号：EP13763092.7

申请日：2013-09-19

Applicant: BASF SE

Inventor： HÄBERLE, Karl ,  HECHAVARRIA FONSECA, Maria Teresa ,  REHLING, Lars ,  SCHÄFER, Frank ,  AHMADNIAN, Fatemeh ,  BOLLMANN, Heinrich ,  BUBOLZ, Markus ,  BUSCHMANN, Carsten ,  SCHOLZ, Günter ,  THOMAS, Maria

IPC: C07C267/00

CPC classification number: C07C267/00 ,  C08G18/3206 ,  C08G18/4854 ,  C08G18/6511 ,  C08G18/6705 ,  C08G69/00 ,  C08G73/00 ,  Y02P20/582

Abstract: A process for purifying a polycarbodiimide comprising (a) providing a mixture comprising a polycarbodiimide and a carbodiimidization catalyst; (b) separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture according to (a) to a first distillation, (c) adding an entrainer to the first bottom product obtained from (b) to obtain a mixture; (d) further separating carbodiimidization catalyst from the polycarbodiimide by subjecting the mixture obtained from (c) to a second distillation.

Abstract translation: 一种纯化聚碳化二亚胺的方法，包括（a）提供包含聚碳化二亚胺和碳二亚胺化催化剂的混合物; （b）通过使根据（a）的混合物进行第一次蒸馏，将碳二亚胺化催化剂与聚碳化二亚胺分离，（c）向（b）得到的第一塔底物中加入夹带剂以得到混合物; （d）通过使由（c）得到的混合物进行第二蒸馏，从碳二亚胺进一步分离碳二亚胺化催化剂。

公开(公告)号：EP1670841B1

公开(公告)日：2012-05-30

申请号：EP04765570.9

申请日：2004-09-24

Applicant: BASF SE

Inventor： DREISÖRNER, Jan-Michael ,  KNAKE, Johann ,  THOMAS, Maria ,  WENZEL, Marion ,  ZASCHKE, Bernd

IPC: C08G18/40 ,  C08G18/63

CPC classification number: C08G18/632 ,  C08G18/4072 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083

Abstract: The invention relates to a method for producing polyol mixtures that are used for further processing polyurethanes and contain at least one graft polyol. The inventive method is characterized in that the polyols are mixed between the polyol production process and the polyurethane production process by means of a continuous mixing process.

公开(公告)号：EP3758921A1

公开(公告)日：2021-01-06

申请号：EP19706713.5

申请日：2019-02-28

Applicant: BASF SE

Inventor： WEINRICH, Dirk ,  FRICKE, Marc ,  VOGELSANG, Volker ,  LOELSBERG, Wibke ,  STELLING, Christian ,  NOBIS, Marcel ,  KAMINSKY, Torben ,  THOMAS, Maria

IPC: B29C67/20 ,  C08J9/28 ,  C08G18/00

公开(公告)号：EP3758903A1

公开(公告)日：2021-01-06

申请号：EP19708486.6

申请日：2019-02-28

Applicant: BASF SE

Inventor： FRICKE, Marc ,  VOGELSANG, Volker ,  WEINRICH, Dirk ,  LOELSBERG, Wibke ,  NOBIS, Marcel ,  VIERECK, Ruediger ,  INDERRIEDEN, Thorsten ,  KAMINSKY, Torben ,  THOMAS, Maria

IPC: B29C33/56 ,  B29C33/40 ,  B29K75/00 ,  B29K105/04

公开(公告)号：EP2897996B1

公开(公告)日：2018-08-29

申请号：EP13763093.5

申请日：2013-09-19

Applicant: BASF SE

Inventor： BUBOLZ, Markus ,  HÄBERLE, Karl ,  HENKE, Kai ,  KEMPFERT, Dirk ,  KRÄMER, Markus ,  LAWRENZ, Sven ,  SCHÄFER, Frank ,  THOMAS, Maria ,  TREULING, Ulrich

IPC: C08G18/02 ,  C07C267/00

CPC classification number: C08G18/025 ,  C08G18/0838 ,  C08G18/095 ,  C08G2105/06 ,  Y02P20/582

Abstract: A process for producing a polycarbodiimide, comprising polymerizing a diisocyanate in the presence of a carbodiimidization catalyst in a reaction vessel in liquid phase at a temperature in the range of from 20 to 250° C., at a pressure in the range of from 20 to 800 mbar and in the presence of at least one inert gas, wherein the at least one inert gas is introduced into the liquid phase in the reaction vessel with a flow rate in the range of from 0.1 x/h to 100 x/h, x being the volume of the reaction vessel.