公开(公告)号：US20160114296A1

公开(公告)日：2016-04-28

申请号：US14895848

申请日：2014-05-30

Applicant: BASF SE

Inventor： Martin WEBER ,  Thomas WEISS ,  Christian MALETZKO ,  Nicole JANSSEN

IPC: B01D71/80 ,  B01D61/14 ,  C08G75/23 ,  B01D71/52

CPC classification number: B01D71/80 ,  B01D61/145 ,  B01D67/0006 ,  B01D71/52 ,  C08G75/23 ,  C08G2261/126 ,  C08L71/02 ,  C08L81/06

Abstract: Membrane comprising a block copolymer comprising polyarylene ether blocks and polyalkylene oxide blocks, wherein said polyalkylene oxide blocks comprise at least one polyethylene oxide segment and at least one segment of at least one polyalkylene oxide that is different from polyethylene oxide

Abstract translation: 包含包含聚亚芳基醚嵌段和聚环氧烷嵌段的嵌段共聚物的膜，其中所述聚环氧烷嵌段包含至少一个聚环氧乙烷链段和至少一个不同于聚环氧乙烷的聚环氧烷烃链段

公开(公告)号：US20160263529A1

公开(公告)日：2016-09-15

申请号：US15029568

申请日：2014-10-13

Applicant: BASF SE

Inventor： Edoardo MENOZZI ,  Martin HEIJNEN ,  Martin WEBER ,  Nicole JANSSEN

IPC: B01D65/02 ,  B29C47/88 ,  B01D71/68 ,  B01D69/08 ,  B01D69/02 ,  B01D61/58 ,  B01D67/00 ,  B01D69/04 ,  B29C47/00 ,  C02F1/44

CPC classification number: B01D65/022 ,  B01D61/58 ,  B01D67/002 ,  B01D69/02 ,  B01D69/04 ,  B01D69/087 ,  B01D71/68 ,  B01D2321/04 ,  B01D2321/168 ,  B01D2325/24 ,  B01D2325/28 ,  B01D2325/30 ,  B29C48/0012 ,  B29C48/022 ,  B29C48/919 ,  B29K2081/06 ,  B29K2995/0068 ,  B29L2031/755 ,  C02F1/44 ,  C02F2305/02

Abstract: Polyethers (A), whose main chain essentially consists of repeating units of the formulae (1) and (2) in alternating order, are useful as an additive to a porous polymer membrane, or as the main polymer constituent of a porous polymer membrane, for stabilizing said membrane against detrimental effects of oxidizing agents and/or for improving the stability of a filtration module comprising said membrane against detrimental effects of oxidizing agents.

公开(公告)号：US20230132285A1

公开(公告)日：2023-04-27

申请号：US17913447

申请日：2021-03-18

Applicant: BASF SE

Inventor： Peter ZUROWSKI ,  Tile GIESHOFF ,  Nicole JANSSEN

IPC: C07C51/50 ,  C07C51/47

Abstract: Process for inhibiting the undesired free-radical polymerization of acrylic acid present in a liquid phase P, wherein the acrylic acid content of P is at least 10% by weight, the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal based on the weight of the acrylic acid present in P and the liquid phase P is admixed with protoanemonine in an amount that results in a protoanemonine content in the range from 0.5 to 100 ppmw based on the weight of the acrylic acid present in P, and a liquid phase P, wherein the acrylic acid content of P is at least 10% by weight and the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal and in the range from 0.5 to 100 ppmw of protoanemonine, in each case based on the weight of the acrylic acid present in P.

公开(公告)号：US20170239627A1

公开(公告)日：2017-08-24

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 ,  B01D71/52 ,  C08J3/00 ,  C02F1/44 ,  A23L2/74 ,  C08G75/23 ,  B01D71/68 ,  B01D67/00

CPC classification number: B01D71/80 ,  A23L2/74 ,  A23V2002/00 ,  B01D67/0011 ,  B01D67/0016 ,  B01D71/52 ,  B01D71/68 ,  B01D2325/02 ,  B01D2325/20 ,  B01D2325/22 ,  C02F1/44 ,  C02F2103/08 ,  C08G75/23 ,  C08G2340/00 ,  C08J3/005 ,  C08J2381/06 ,  C08J2481/06

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：US20210309598A1

公开(公告)日：2021-10-07

申请号：US17263415

申请日：2019-07-16

Applicant: BASF SE

Inventor： Nicole JANSSEN ,  Peter ZUROWSKI ,  Ulrich HAMMON ,  Sylke HAREMZA

IPC: C07C51/50 ,  C07C51/44

Abstract: Process for inhibiting the undesired free-radical polymerization of acrylic acid present in a liquid phase P, wherein the acrylic acid content of P is at least 10% by weight, the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal based on the weight of the acrylic acid present in P and the liquid phase P is admixed with furfural in an amount that results in a furfural content in the range from 25 to 1000 ppmw based on the weight of the acrylic acid present in P. Liquid phase P, wherein the acrylic acid content of P is at least 10% by weight and the liquid phase P comprises in the range from 25 to 1000 ppmw of glyoxal and in the range from 25 to 1000 ppmw of furfural in each case based on the weight of the acrylic acid present in P.

公开(公告)号：US20210292270A1

公开(公告)日：2021-09-23

申请号：US16468823

申请日：2017-12-13

Applicant: BASF SE

Inventor： Ortmund LANG ,  Nadja Isabelle Desiree KLIPFEL ,  Nicole JANSSEN ,  Roland POX

IPC: C07C67/54 ,  B01D3/14 ,  B01D3/42

Abstract: Process for isolating pure cyclohexyl (meth)acrylate from a mixture comprising cyclohexyl (meth)acrylate, cyclohexanol and entrainer, by feeding or introducing the mixture is fed as side feed stream into a rectification column having a bottom vaporizer, separation-active internals and a stripping section and an enrichment section, where the column has from 4 to 50 theoretical plates, the side feed stream is introduced in the region commencing at least one theoretical plate above the bottommost theoretical plate and ending at least one theoretical plate below the uppermost theoretical plate, the pressure at the top of the column is in the range from 10 mbar to 5 bar and the reflux ratio is from 1:0.2 to 1:10, and the bottom output is fed to a further distillation unit in which the cyclohexyl (meth)acrylate is separated off at the top or at a side offtake.