公开(公告)号：US20240067601A1

公开(公告)日：2024-02-29

申请号：US18259802

申请日：2021-12-30

Applicant: Hanwha Solutions Corporation

Inventor： Ju Won MIN ,  Hyun Cheol RYU ,  Keedo HAN

IPC: C07C263/10 ,  C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20

Abstract: The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can increase energy efficiency while minimizing thermal denaturation of a reaction product and formation of by-products during the preparation of an isocyanate compound using phosgene.

公开(公告)号：US20240317678A1

公开(公告)日：2024-09-26

申请号：US18259811

申请日：2021-12-30

Applicant: Hanwha Solutions Corporation

Inventor： Hyun Cheol RYU ,  Ju Won MIN ,  Keedo HAN

IPC: C07C263/10 ,  C07C263/20

CPC classification number: C07C263/10 ,  C07C263/20

Abstract: The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can minimize thermal denaturation of a reaction product and formation of by-products and obtain a high-purity isocyanate compound more stably during the preparation of an isocyanate compound using phosgene.

公开(公告)号：US20240317679A1

公开(公告)日：2024-09-26

申请号：US18259824

申请日：2021-12-30

Applicant: HANWHA SOLUTIONS CORPORATION

Inventor： Ju Won MIN ,  Hyun Cheol RYU

IPC: C07C263/10

CPC classification number: C07C263/10

Abstract: The present invention relates to a method for preparing an isocyanate compound. According to the present invention, provided is a method for preparing an isocyanate compound that can recover and reuse materials used in the reaction during the preparation of an isocyanate compound using phosgene, and can minimize thermal denaturation of a reaction product and formation of by-products.