公开(公告)号：US20200331876A1

公开(公告)日：2020-10-22

申请号：US16753591

申请日：2018-10-04

Applicant: Novomer, Inc.

Inventor： Oleg Kulikov ,  Sadesh H. Sookraj ,  Utpal Mahendra Vakil ,  Matthew Goodrich

IPC: C07D305/12 ,  C07D305/08 ,  C07D307/20 ,  C07D407/12 ,  C07D305/14 ,  C08G18/09 ,  C08L75/04

Abstract: The present invention is directed to processes for producing isocyanates and isocyanate derivatives from epoxide and carbon monoxide reagents. In preferred embodiments, the processes include a step for providing carbonylation of an epoxide reagent with a carbon monoxide reagent to produce a beta-lactone intermediate. In certain preferred embodiments, further carbonylation of a beta-lactone intermediate produces a succinic anhydride intermediate. The processes of the present invention include steps for rearranging beta-lactone intermediates and/or succinic anhydride intermediates to produce isocyanate products and/or isocyanate derivatives. In certain preferred embodiments, the isocyanate products may be copolymerized with polyol oligomers to provide polyurethane products.

公开(公告)号：US11814360B2

公开(公告)日：2023-11-14

申请号：US16753591

申请日：2018-10-04

Applicant: Novomer, Inc.

Inventor： Oleg Kulikov ,  Sadesh H. Sookraj ,  Utpal Mahendra Vakil ,  Matthew Goodrich

IPC: C07D305/12 ,  C07D305/08 ,  C07D305/14 ,  C07D307/20 ,  C07D407/12 ,  C08G18/09 ,  C08L75/04 ,  C07C263/12 ,  C08G18/44 ,  C08G18/48 ,  C07C263/00 ,  C07C265/00

CPC classification number: C07D305/12 ,  C07C263/00 ,  C07C263/12 ,  C07C265/00 ,  C07D305/08 ,  C07D305/14 ,  C07D307/20 ,  C07D407/12 ,  C08G18/09 ,  C08G18/44 ,  C08G18/48 ,  C08L75/04

Abstract: The present invention is directed to processes for producing isocyanates and isocyanate derivatives from epoxide and carbon monoxide reagents. In preferred embodiments, the processes include a step for providing carbonylation of an epoxide reagent with a carbon monoxide reagent to produce a beta-lactone intermediate. In certain preferred embodiments, further carbonylation of a beta-lactone intermediate produces a succinic anhydride intermediate. The processes of the present invention include steps for rearranging beta-lactone intermediates and/or succinic anhydride intermediates to produce isocyanate products and/or isocyanate derivatives. In certain preferred embodiments, the isocyanate products may be copolymerized with polyol oligomers to provide polyurethane products.