公开(公告)号：US20170260320A1

公开(公告)日：2017-09-14

申请号：US15506916

申请日：2015-07-29

Applicant: BASF SE

Inventor： Stefan Bokern ,  Pierre Coppens ,  Patrick Bolze ,  Thomas Mathieu ,  Carola Melloh

IPC: C08G18/66 ,  C08G18/72 ,  C08G18/79 ,  C08G18/50 ,  C08G18/18 ,  C08G18/36 ,  C08G18/34 ,  C08G18/48 ,  C08G18/75 ,  C08G18/24

CPC classification number: C08G18/6696 ,  C08G18/165 ,  C08G18/18 ,  C08G18/20 ,  C08G18/246 ,  C08G18/3275 ,  C08G18/341 ,  C08G18/36 ,  C08G18/4812 ,  C08G18/482 ,  C08G18/4829 ,  C08G18/4837 ,  C08G18/4845 ,  C08G18/5024 ,  C08G18/722 ,  C08G18/755 ,  C08G18/792 ,  C08G2190/00

Abstract: The invention relates to a method for producing seals made of polyurethane, in which (a) aliphatic polyisocyanate, (b) compounds containing at least two isocyanate-reactive groups, (c) catalysts, (d) antioxidants and/or light stabilizers, and, optionally, (e) blowing agents, and (f) auxiliary agents and/or additives are mixed to form a reaction mixture, and the reaction mixture is allowed to complete the reaction to form polyurethane. The seal made of polyurethane has a Shore A hardness of less than 90 and a density of at least 850 g/L. The polymeric compounds having groups reactive toward isocyanate include b1) polyetherols having a functionality of 2 to 4 and a hydroxyl number of 20 to 100 mg KOH/g, b2) hydrophobic polyols having an OH number of less than 180 mg KOH/g and a functionality of greater than 2 to 3, and b3) chain extenders.

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：US10370480B2

公开(公告)日：2019-08-06

申请号：US15506916

申请日：2015-07-29

Applicant: BASF SE

Inventor： Stefan Bokern ,  Pierre Coppens ,  Patrick Bolze ,  Thomas Mathieu ,  Carola Melloh

IPC: C08G18/66 ,  C08G18/48 ,  C08G18/50 ,  C08G18/72 ,  C08G18/75 ,  C08G18/79 ,  C08G18/16 ,  C08G18/20 ,  C08G18/24 ,  C08G18/32 ,  C08G18/36 ,  C08G18/18 ,  C08G18/34

Abstract: The invention relates to a method for producing seals made of polyurethane, in which (a) aliphatic polyisocyanate, (b) compounds containing at least two isocyanate-reactive groups, (c) catalysts, (d) antioxidants and/or light stabilizers, and, optionally, (e) blowing agents, and (f) auxiliary agents and/or additives are mixed to form a reaction mixture, and the reaction mixture is allowed to complete the reaction to form polyurethane. The seal made of polyurethane has a Shore A hardness of less than 90 and a density of at least 850 g/L. The polymeric compounds having groups reactive toward isocyanate include b1) polyetherols having a functionality of 2 to 4 and a hydroxyl number of 20 to 100 mg KOH/g, b2) hydrophobic polyols having an OH number of less than 180 mg KOH/g and a functionality of greater than 2 to 3, and b3) chain extenders.

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.