公开(公告)号：US11427671B2

公开(公告)日：2022-08-30

申请号：US17281403

申请日：2019-10-25

申请人： Covestro Intellectual Property GmbH & Co. KG

发明人： Carsten Koopmans ,  Kai Laemmerhold ,  Christoph Guertler ,  Elena Frick-Delaittre ,  Aurel Wolf ,  Joachim Simon ,  Min Wang ,  Daniel Thiel ,  Walter Leitner

IPC分类号： C08G18/00 ,  C08G18/08 ,  C08G18/22 ,  C08G18/71 ,  C08G18/78 ,  C08G59/40 ,  C08G18/76

摘要： A process for producing thermoplastic polyoxazolidinone, comprising the following steps: (i) Reaction of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E) forming an intermediate compound (F) and (ii) Reaction of a compound (G) with the intermediate (F) formed in step (i), wherein the bisepoxide compound (B) comprises isosorbide diglycidylether, wherein compound (D) is one or more compounds selected from the group consisting of monofunctional isocyanate and monofunctional epoxide, and wherein compound (G) is an alkylene oxide. The invention is also related to the resulting thermoplastic polyoxazolidinone.

公开(公告)号：US20210380748A1

公开(公告)日：2021-12-09

申请号：US17285196

申请日：2019-10-25

申请人： Covestro Intellectual Property GmbH & Co. KG

发明人： Carsten Koopmans ,  Kai Laemmerhold ,  Christoph Guertler ,  Elena Frick-Delaittre ,  Aurel Wolf ,  Joachim Simon ,  Min Wang ,  Daniel Thiel ,  Walter Leitner

IPC分类号： C08G18/00

摘要： A process for producing thermoplastic polyoxazolidinone comprising copolymerization of a diisocyanate compound (A) with a bisepoxide compound (B) in the presence of a catalyst (C) and a compound (D) in a solvent (E), wherein the bisepoxide compound (B) comprises isosorbide diglycidylether, wherein the catalyst (C) is selected from the group consisting of alkali halogenides and earth alkali halogenides, and transition metal halogenides, compound (D) is selected from the group consisting of monofunctional isocyanate, monofunctional epoxide, and
wherein the process comprises step (α) of placing the solvent (E) and the catalyst (C) in a reactor to provide a mixture, and adding the diisocyanate compound (A), the bisepoxide compound (B) and the compound (D) in step (β) to the mixture resulting from the step (α). The invention is also related to the resulting thermoplastic polyoxazolidinone.