公开(公告)号：US20230340205A1

公开(公告)日：2023-10-26

申请号：US18018534

申请日：2021-07-23

Applicant: BASF SE

Inventor： Bernd BRUCHMANN ,  Peter Rudolf ,  Markus Meise ,  Elliot Christ ,  Juergen Ruehe ,  Tassilo Gleede

IPC: C08G75/045

CPC classification number: C08G75/045

Abstract: A process can be used for preparing a compound A having n groups of formula





(I). In Formula (I), X is C2-C12-alkylene or C2-C12-alkylene substituted with C1-C4-alkoxy, C1-C4-alkylthio, and/or interrupted with O or S; R1, R2, and R3 are independently of one another hydrogen or C1-C4-alkyl: and n is an integer of 1, 2, 3, 4, 5, or 6. The process involves reacting a compound B having n —SH groups with a compound C of formula





(II), in the presence of a free radical generator.