公开(公告)号：US20250066312A1

公开(公告)日：2025-02-27

申请号：US18726838

申请日：2022-12-20

Applicant: BASF SE

Inventor： Christian SCHWEDE ,  Johannes Felix HAUS ,  Joerg THERRE ,  Jacek MALISZ ,  Helmut KRONEMAYER ,  Matthias KRUCK ,  Markus SPITTLER

IPC: C07D251/24

Abstract: The present invention relates to an improved process for isolating 2,4-bis-(2,4-dihydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine (DIOPAT) from a DIOPAT-containing aqueous mixture N, wherein the process comprises the steps of concentrating the aqueous mixture N to obtain a DIOPAT-containing aqueous suspension S1 having a certain solid content; evaporating solvent from the aqueous suspension S1; and drying the DIOPAT to obtain a solid content of more than 90 wt.-%, based on the total weight of the DIOPAT.

公开(公告)号：US20160075801A1

公开(公告)日：2016-03-17

申请号：US14784305

申请日：2014-04-07

Applicant: BASF SE

Inventor： Christian SCHADE ,  Faissal-Ali EL-TOUFAILI ,  Aaron FLORES-FIGUEROA ,  Gledison FONSECA ,  Michaela HEUßLER ,  Christian SCHWEDE ,  Helmut WITTELER

IPC: C08F20/06

CPC classification number: C08F20/06 ,  B01J19/0093 ,  C08F2/01 ,  C08F2/10 ,  C08F2/16 ,  C08F20/00 ,  C08F120/06 ,  C08F120/14

Abstract: The present invention relates to a continuous process for the manufacture of highly-branched homo- or copolymers of C3-C8 ethylenically unsaturated mono- or dicarboxylic acid as well as the anhydrides and salts thereof (monomer A) by means of free-radical polymerization of monomer A and optionally water-soluble, monethylenically unsaturated comonomers (monomer B) in an aqueous medium in the presence of at least one water-soluble initiator, wherein the polymerization takes place in at least one tubular reactor segment.

Abstract translation: 本发明涉及通过自由基聚合制备C3-C8烯键式不饱和单羧酸或二羧酸的高度支化的均聚物或共聚物以及其酸酐和其盐（单体A）的连续方法 单体A和任选的水溶性单烯属不饱和共聚单体（单体B）在水介质中，在至少一种水溶性引发剂存在下，其中聚合在至少一个管式反应器段中进行。