公开(公告)号：US11041040B2

公开(公告)日：2021-06-22

申请号：US16610129

申请日：2018-04-27

Applicant: BASF SE

Inventor： Andre Kamm ,  Thomas Mathieu ,  Gunther Lukat ,  Ralf Fritz

IPC: B01D63/02 ,  C08G18/36 ,  B01D39/16 ,  B01D61/24 ,  B01D71/54 ,  C02F1/44 ,  C08G18/12 ,  C08G18/22 ,  C08G18/24 ,  C08G18/32 ,  C08G18/48 ,  C08G18/76 ,  C08J5/04

Abstract: Polyurethane encapsulating compounds for the embedding of hollow fibers of filter elements are provided. These are obtainable by mixing a polyol component (A) and an isocyanate component (B) to give a reaction mixture and reacting the mixture to completion to give the polyurethane encapsulating compound, wherein the polyol component (A) comprises (a1) at least one fatty-acid-based polyol, (a2) at least one amine compound having at least one tertiary nitrogen atom and at least one isocyanate-reactive hydrogen atom and (a3) at least one metal compound that functions as a polyurethane catalyst, wherein the polyurethane catalyst (a3) does not comprise any tin, lead and/or mercury and the isocyanate component (B) comprises at least one aromatic isocyanate having at least two isocyanate groups. Further provided is a method for producing filter elements using the polyurethane encapsulating compounds and the use of the polyurethane encapsulating compounds for the embedding of hollow fibers.

公开(公告)号：US11427672B2

公开(公告)日：2022-08-30

申请号：US16610436

申请日：2018-04-27

Applicant: BASF SE

Inventor： Patrick Bolze ,  Andre Kamm ,  Thomas Mathieu ,  Ralf Fritz ,  Gunther Lukat

IPC: C08G18/66 ,  C08G18/48 ,  C08G18/42 ,  C08G18/22 ,  C08G18/12 ,  C08G18/32 ,  C08G18/36 ,  C08G18/16 ,  C08G18/18 ,  A61M1/00 ,  C02F1/00 ,  C02F1/44

Abstract: Disclosed are polyurethane encapsulating compounds for embedding hollow fibers of filter elements, obtainable by mixing a polyol component (A) and an isocyanate component (B), including at least one aromatic isocyanate, to give a reaction mixture and reacting the mixture to completion to give the polyurethane encapsulating compound. The polyol component (A) includes at least one fatty-acid-based polyol (a1) having a hydroxyl number of greater than 50 to less than 500 mg KOH/g and a functionality of from 2-6, and at least one bismuth catalyst (a2), obtainable by mixing a bismuth carboxylate (a2-1) with an amine compound (a2-11) having at least one tertiary nitrogen atom and at least one isocyanate-reactive hydrogen atom. The molar ratio of bismuth to amine compound (a2-11) is 1:0.5-1:50. Also disclosed are methods for producing filter elements using the polyurethane encapsulating compounds and to uses of the polyurethane encapsulating compounds for the embedding of hollow fibers.

公开(公告)号：US20210163659A1

公开(公告)日：2021-06-03

申请号：US16610436

申请日：2018-04-27

Applicant: BASF SE

Inventor： Patrick Bolze ,  Andre Kamm ,  Thomas Mathieu ,  Ralf Fritz ,  Gunther Lukat

IPC: C08G18/22 ,  C08G18/32 ,  C08G18/12 ,  C08G18/36 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66

Abstract: Disclosed are polyurethane encapsulating compounds for embedding hollow fibers of filter elements, obtainable by mixing a polyol component (A) and an isocyanate component (B), including at least one aromatic isocyanate, to give a reaction mixture and reacting the mixture to completion to give the polyurethane encapsulating compound. The polyol component (A) includes at least one fatty-acid-based polyol (a1) having a hydroxyl number of greater than 50 to less than 500 mg KOH/g and a functionality of from 2-6, and at least one bismuth catalyst (a2), obtainable by mixing a bismuth carboxylate (a2-1) with an amine compound (a2-11) having at least one tertiary nitrogen atom and at least one isocyanate-reactive hydrogen atom. The molar ratio of bismuth to amine compound (a2-11) is 1:0.5-1:50. Also disclosed are methods for producing filter elements using the polyurethane encapsulating compounds and to uses of the polyurethane encapsulating compounds for the embedding of hollow fibers.

公开(公告)号：US20200087437A1

公开(公告)日：2020-03-19

申请号：US16610129

申请日：2018-04-27

Applicant: BASF SE

Inventor： Andre Kamm ,  Thomas Mathieu ,  Gunther Lukat ,  Ralf Fritz

IPC: C08G18/36 ,  C08G18/32 ,  C08G18/22 ,  C08G18/12 ,  C08G18/76 ,  C08G18/24 ,  C08G18/48 ,  C08J5/04 ,  B01D63/02 ,  B01D71/54 ,  B01D39/16 ,  B01D61/24 ,  C02F1/44

Abstract: Polyurethane encapsulating compounds for the embedding of hollow fibers of filter elements are provided. These are obtainable by mixing a polyol component (A) and an isocyanate component (B) to give a reaction mixture and reacting the mixture to completion to give the polyurethane encapsulating compound, wherein the polyol component (A) comprises (a1) at least one fatty-acid-based polyol, (a2) at least one amine compound having at least one tertiary nitrogen atom and at least one isocyanate-reactive hydrogen atom and (a3) at least one metal compound that functions as a polyurethane catalyst, wherein the polyurethane catalyst (a3) does not comprise any tin, lead and/or mercury and the isocyanate component (B) comprises at least one aromatic isocyanate having at least two isocyanate groups. Further provided is a method for producing filter elements using the polyurethane encapsulating compounds and the use of the polyurethane encapsulating compounds for the embedding of hollow fibers.