申请人:Covestro Deutschland AG
公开号:EP3456753A1
公开(公告)日:2019-03-20
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 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 (P) to the mixture resulting from the step (α). The invention is also related to the resulting thermoplastic polyoxazolidinone.
一种生产热塑性聚噁唑烷酮的工艺,包括二异氰酸酯化合物(A)与双环氧化物化合物(B)在催化剂(C)和化合物(D)存在下于溶剂(E)中共聚,其中催化剂(C)选自由碱卤化物、土碱卤化物和过渡金属卤化物组成的组、化合物(D)选自由单官能团异氰酸酯、单官能团环氧化物组成的组,其中该工艺包括步骤(α)将溶剂(E)和催化剂(C)放入反应器中以提供混合物,并将步骤(P)中的二异氰酸酯化合物(A)、双环氧化物化合物(B)和化合物(D)加入步骤(α)产生的混合物中。本发明还涉及由此得到的热塑性聚恶唑烷酮。