公开(公告)号：US20210292286A1

公开(公告)日：2021-09-23

申请号：US17261865

申请日：2019-07-18

Applicant: BASF SE

Inventor： Jacek MALISZ ,  Andreas MUELLER ,  Johannes NAGEL ,  Dominik LANZINGER

IPC: C07D251/24 ,  B01D69/02 ,  B01D71/02 ,  C02F9/00

Abstract: The present invention provides an improved process for isolating 2,4-bis-(2,4-dihydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine (DIOPAT) from an aqueous alkaline mixture M comprising the DIOPAT, 2,4-dihydroxybenzophenone, and aluminum salts, wherein the process comprises the steps of precipitating the DIOPAT by acidifying the mixture M to a pH

公开(公告)号：US20220325200A1

公开(公告)日：2022-10-13

申请号：US17639997

申请日：2020-09-07

Applicant: BASF SE

Inventor： Dominik LANZINGER ,  Juergen TROPSCH ,  Yannick FUCHS

IPC: C11D1/722 ,  C11D3/37

Abstract: Disclosed herein is a solid surfactant composition including at least one polymer P1) that includes polymerized units of at least one monomer A), selected from the group consisting of α, β-ethylenically unsaturated carboxylic acids, salts of α,β-ethylenically un-saturated carboxylic acids, α, β-ethylenically unsaturated carboxylic acid anhydrides and mixtures thereof, and at least one nonionic surfactant of the general formula (I), characterized in that the solid surfactant composition has a glass transition temperature (Tg) of at least 50° C., determined by differential scanning calorimetry according to DIN EN ISO 11357-2, at a heating rate of 20 K/min. Additionally disclosed herein is a method of using the solid surfactant composition in a cleaning formulation.