公开(公告)号：US11685759B2

公开(公告)日：2023-06-27

申请号：US17286474

申请日：2019-10-17

Applicant: BASF SE

Inventor： Michael Puhl ,  Sebastian Wloch ,  Peter Oedman ,  Anne-Catrin Letzel ,  Hartwig Schroeder ,  Jacek Malisz ,  Daniel Seibert-Ludwig ,  Emiel Jan Kappert ,  Chung Huan Wong ,  Michael Barros Gross ,  Martin Viertelhaus

IPC: C07H1/08 ,  C07H3/06

CPC classification number: C07H1/08 ,  C07H3/06 ,  C07B2200/13

Abstract: The present invention relates to a method for obtaining crystalline 2′-fucosyllactose from a 2′-FL raw material, which contains 2′-FL as a main constituent and at least 0.5% by weight, frequently at least 1% by weight, in particular at least 2% by weight, more particularly at least 5% by weight, and especially at least 8% by weight,based on the total amount of mono-and oligosaccharides in the raw material, of one or more mono- or oligosaccharides different from 2′-FL, where the method comprises a)providing a solution of the 2′-FL raw material in water, which does not contain more than 10% by weight, preferably not more than 7% by weight, more preferably not more than 5% by weight of organic solvents, based on the total amount of water; b) effecting the crystallization of 2′-FL from the solution provided in step a) by inducing conditions of a controlled super saturation in the solution; and c) separating crystalline 2′-FL from the mother liquor, and where during controlled supersaturation in step b) not more than 10% by weight, preferably not more than 7% by weight, more preferably not more than 5% by weight of organic solvents are present, based on the total amount of water present during step b).

公开(公告)号：US10441925B2

公开(公告)日：2019-10-15

申请号：US15502896

申请日：2015-07-30

Applicant: BASF SE

Inventor： Martin Weber ,  Nicole Janssen ,  Hartwig Voss ,  Jacek Malisz ,  Martin Heijnen ,  Edoardo Menozzi

IPC: B01D71/80 ,  C08G75/23 ,  C08J3/00 ,  C02F1/44 ,  A23L2/74 ,  B01D67/00 ,  B01D71/52 ,  B01D71/68 ,  C02F103/08

Abstract: Process for making a membrane M comprising the following steps: a) preparing a copolymer C, wherein said copolymer C comprises blocks of at least one polyarylene ether A and blocks of polyalkylene oxide PAO, wherein the content of polyethyleneoxide in copolymer C is 30 to 90% by weight and wherein copolymer C is prepared in a solvent L to yield solution S; b) providing a dope solution D comprising at least one polymer P; c) mixing solution S and dope solution D; d) preparing a membrane by bringing the mixture of solution S and dope solution D into contact with at least one coagulating agent.

公开(公告)号：US11904279B2

公开(公告)日：2024-02-20

申请号：US17290698

申请日：2019-10-30

Applicant: BASF SE

Inventor： Jacek Malisz ,  Johannes Nagel ,  Michael Jacquier

IPC: B01D61/02 ,  B01D61/58 ,  B01D71/02 ,  C07D251/24 ,  B01D61/14 ,  B01D71/68

CPC classification number: B01D61/58 ,  B01D61/027 ,  B01D61/145 ,  B01D71/025 ,  C07D251/24 ,  B01D71/68 ,  B01D2311/08 ,  B01D2311/10 ,  B01D2311/14 ,  B01D2311/18 ,  B01D2311/2642 ,  B01D2311/2649

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 having a pH of 10 or more and comprising the 2,4-bis-(2,4-dihydroxyphenyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4-dihydroxybenzophenone, and aluminum salts, wherein the process comprises a nanofiltration step, a precipitation step, and a further filtration step.