公开(公告)号：US20200246761A1

公开(公告)日：2020-08-06

申请号：US15776220

申请日：2016-11-15

Applicant: BASF SE

Inventor： Wendel WOHLLEBEN ,  Karsten SEIDEL ,  Kai WERLE ,  Natalia WIDJOJO

IPC: B01D71/82 ,  B01D61/02 ,  B01D67/00 ,  B01D69/12 ,  B01D69/02 ,  B01D71/68 ,  C02F1/44

Abstract: The present invention is directed to nanofiltration (NF) composite membranes comprising at least one polymeric porous substrate layer (S) and at least one porous selfassembled supramolecular membrane layer (F); a method of preparing such composite membranes; method of separation/filtration/purification of heavy metal cations, inorganic anions, and organic small molecules by applying such composite membranes; as well as filter cartridges and filtration devices comprising said composite membranes.

公开(公告)号：US20190099724A1

公开(公告)日：2019-04-04

申请号：US16086941

申请日：2017-03-20

Applicant: BASF SE

Inventor： Menno BOS ,  Martin HEIJNEN ,  Natalia WIDJOJO

IPC: B01D69/08 ,  B01D69/12 ,  B01D69/02 ,  B01D71/68

Abstract: The present invention is related to a method for fabricating multilayer singlebore membranes (10) or multilayer multibore membranes (20) for ultrafiltration applications including the following method steps: (a) feeding at least a material of a substrate (12), at least one material of a functional layer (14, 15) and a bore fluid (36) to a spinneret (30) simultaneously; (b) forming said membranes (10, 20) as a tube-like string (54) in a one-step process in said spinneret (30); (c) thereby assigning a functionality to said functional layer (14, 15) applied on at least one surface (13, 17) of said substrate (12). The invention is also related to a spinneret (30) for fabricating multilayer singlebore membranes (10) or multilayer multibore membranes (20), using the inventive method, and to a system comprising such a spinneret (30).

公开(公告)号：US20190209973A1

公开(公告)日：2019-07-11

申请号：US16328788

申请日：2017-08-25

Applicant: BASF SE

Inventor： Natalia WIDJOJO ,  Menno BOS ,  Martin HEIJNEN ,  Peishan ZHONG ,  Martin WEBER

IPC: B01D65/08 ,  B01D61/14 ,  B01D69/08 ,  B01D71/80 ,  B01D71/68 ,  B01D69/12 ,  B01D71/52 ,  B01D71/70 ,  C02F1/44

CPC classification number: B01D65/08 ,  B01D61/145 ,  B01D69/08 ,  B01D69/12 ,  B01D71/40 ,  B01D71/52 ,  B01D71/68 ,  B01D71/70 ,  B01D71/80 ,  C02F1/444

Abstract: Multilayer single-bore hollow fibre membranes M or multilayer multi-bore hollow fibre membranes M for ultrafiltration applications are disclosed, comprising at least one hollow fibre membrane substrate S comprising a polymer bulk material P1 and at least one functional layer F disposed on at least the inner surface of the hollow fibre membrane substrate S, wherein the functional layer F comprises at least one polymer P2. The hollow fibre membranes may be used in ultrafiltration methods and filtration modules, in particular for the treatment of waste water.

公开(公告)号：US20160158707A1

公开(公告)日：2016-06-09

申请号：US14902752

申请日：2014-06-27

Applicant: BASF SE

Inventor： Martin HEIJNEN ,  Martin WEBER ,  Claudia STAUDT ,  Marc JUNG ,  Natalia WIDJOJO ,  Peishan ZHONG ,  Jia Le LOW

IPC: B01D69/10 ,  B01D71/56 ,  B01D67/00 ,  B01D61/00 ,  B01D61/02

CPC classification number: B01D69/10 ,  B01D61/002 ,  B01D61/02 ,  B01D63/066 ,  B01D67/0006 ,  B01D67/0088 ,  B01D69/12 ,  B01D69/125 ,  B01D71/56 ,  B01D71/68

Abstract: Membrane comprising a carrier and a rejection layer, wherein said membrane is a multiple channel membrane. The rejection layer is a polyamide layer. Process for making multiple channel membranes coated with a polyamide layer.

Abstract translation: 包含载体和排斥层的膜，其中所述膜是多通道膜。 拒绝层是聚酰胺层。 制造涂有聚酰胺层的多通道膜的方法。