公开(公告)号：US20220177405A1

公开(公告)日：2022-06-09

申请号：US17433700

申请日：2020-02-21

Applicant: BASF SE

Inventor： Piotr MAKARCZYK ,  Boris BREITSCHEIDEL ,  Zsolt SZARKA ,  Sonja JUDAT

IPC: C07C67/303

Abstract: The present invention relates to a process for purifying benzenepolycarboxylic esters and for preparing cyclohexanepolycarboxylic esters by hydrogenating the purified benzenepolycarboxylic esters. The invention further relates to benzenepolycarboxylic esters and cyclohexanepolycarboxylic esters having a small proportion of by-products, especially of dialkyl ethers, and especially to diisononyl cyclohexane-1,2-dicarboxylate having a small proportion of diisononyl ether. The invention also relates to the use of the cyclohexanepolycarboxylic esters as plasticizers, especially in products intended for human contact, such as children's toys, food packaging and medical articles.

公开(公告)号：US20150307466A1

公开(公告)日：2015-10-29

申请号：US14662890

申请日：2015-03-19

Applicant: BASF SE

Inventor： Stefan RITTINGER ,  Regina VOGELSANG ,  Pierre FOURNIER ,  Anirudh ACHARYA ,  Sonja JUDAT

IPC: C07D295/023 ,  C08F26/10

CPC classification number: C07D295/023 ,  C08F26/10 ,  C08F226/10

Abstract: A process for the distillation of a mixture which consists to at least 90% by weight of a cyclic N-vinylamide and which comprises a stabilizer, wherein a polyether is added to the mixture before or during distillation and a product is obtained which consists to at least 99.5% by weight of the cyclic N-vinylamide.

Abstract translation: 蒸馏混合物的方法，该混合物由至少90重量％的环状N-乙烯基酰胺组成，并且包含稳定剂，其中在蒸馏之前或期间将聚醚加入到混合物中，并获得产物，其组成为 至少99.5重量％的环状N-乙烯基酰胺。