公开(公告)号：US11236212B2

公开(公告)日：2022-02-01

申请号：US16646643

申请日：2018-08-30

Applicant: BASF SE

Inventor： Sebastian Alexander Weisse ,  Tobias Heinz Steinke ,  Bernhard Vath ,  Werner Lenz

IPC: C08J9/40 ,  C08J9/00 ,  C08K9/06

Abstract: A melamine/formaldehyde foam having an open-cell foam structure, with an impregnation applied to the foam structure that comprises at least one particulate phyllosilicate surface-modified with aminosilane and at least one anionically- and/or nonionically-stabilized polyurethane dispersion.

公开(公告)号：US09663625B2

公开(公告)日：2017-05-30

申请号：US14425357

申请日：2013-08-23

Applicant: BASF SE

Inventor： Bernd Gross ,  Horst Baumgartl ,  Jens-Uwe Schierholz ,  Bettina Wester ,  Peter Wolf ,  Bernhard Vath ,  Peter Nessel ,  Klaus Hahn ,  Tobias Heinz Steinke

IPC: C08J9/00 ,  B29C44/20 ,  C08L61/28 ,  C08J9/14 ,  C08J9/30 ,  B29K81/00 ,  B29L31/00

CPC classification number: C08J9/0033 ,  B29C44/20 ,  B29K2081/00 ,  B29L2031/00 ,  C08J9/0023 ,  C08J9/14 ,  C08J9/30 ,  C08J2361/28 ,  C08L61/28

Abstract: The present invention relates to processes for producing melamine-formaldehyde foams, said processes comprising the steps of: a) producing an aqueous mixture M1) comprising 100 parts by weight of at least one melamine-formaldehyde precondensate, 2 to 4 parts by weight of at least one curative, 0.2 to 5 parts by weight of a surfactant mixture, 0.1 to 5 parts by weight of at least one salt of an inorganic acid or one salt of an organic carboxylic acid, 1 to 40 parts by weight of at least one blowing agent, 0 to 5 parts by weight of at least one dye and/or optical brightener, 0 to 20 parts by weight of one or more further additives, and 25 to 60 parts by weight of water, b) heating and foaming said mixture M1) using microwave radiation, c) crosslinking and curing the resulting foam using the curative and microwave radiation, d) drying the foam using microwave radiation, and e) annealing the dried foam using hot air, wherein as essential feature of the present invention said mixture M1) comprises a surfactant mixture comprising a mixture of 50 to 90 wt % of an anionic surfactant and 10 to 50 wt % of a nonionic surfactant, wherein the weight percentages are each based on the total weight of the surfactant mixture, and also to melamine-formaldehyde foams obtainable by the processes of the present invention and also to uses of said foams.

公开(公告)号：US20150210814A1

公开(公告)日：2015-07-30

申请号：US14425357

申请日：2013-08-23

Applicant: BASF SE

Inventor： Bernd Gross ,  Horst Baumgartl ,  Jens-Uwe Schierholz ,  Bettina Wester ,  Peter Wolf ,  Bernhard Vath ,  Peter Nessel ,  Klaus Hahn ,  Tobias Heinz Steinke

IPC: C08J9/00 ,  B29C44/20

CPC classification number: C08J9/0033 ,  B29C44/20 ,  B29K2081/00 ,  B29L2031/00 ,  C08J9/0023 ,  C08J9/14 ,  C08J9/30 ,  C08J2361/28 ,  C08L61/28

Abstract: The present invention relates to processes for producing melamine-formaldehyde foams, said processes comprising the steps of: a) producing an aqueous mixture M1) comprising 100 parts by weight of at least one melamine-formaldehyde precondensate, 2 to 4 parts by weight of at least one curative, 0.2 to 5 parts by weight of a surfactant mixture, 0.1 to 5 parts by weight of at least one salt of an inorganic acid or one salt of an organic carboxylic acid, 1 to 40 parts by weight of at least one blowing agent, 0 to 5 parts by weight of at least one dye and/or optical brightener, 0 to 20 parts by weight of one or more further additives, and 25 to 60 parts by weight of water, b) heating and foaming said mixture M1) using microwave radiation, c) crosslinking and curing the resulting foam using the curative and microwave radiation, d) drying the foam using microwave radiation, and e) annealing the dried foam using hot air, wherein as essential feature of the present invention said mixture M1) comprises a surfactant mixture comprising a mixture of 50 to 90 wt % of an anionic surfactant and 10 to 50 wt % of a nonionic surfactant, wherein the weight percentages are each based on the total weight of the surfactant mixture, and also to melamine-formaldehyde foams obtainable by the processes of the present invention and also to uses of said foams.

Abstract translation: 本发明涉及生产三聚氰胺 - 甲醛泡沫的方法，所述方法包括以下步骤：a）制备含水混合物M1），其包含100重量份的至少一种三聚氰胺 - 甲醛预缩合物，2至4重量份的 至少一种固化剂，0.2至5重量份的表面活性剂混合物，0.1至5重量份的无机酸或一种有机羧酸盐的至少一种盐，1至40重量份的至少一种吹塑 0至5重量份的至少一种染料和/或荧光增白剂，0至20重量份的一种或多种其它添加剂和25至60重量份的水，b）加热和发泡所述混合物M1 ）c）使用固化和微波辐射交联和固化所得泡沫，d）使用微波辐射干燥泡沫，和e）使用热空气对干燥的泡沫进行退火，其中作为本发明的基本特征，所述混合物 M1）公司 包含50至90重量％的阴离子表面活性剂和10至50重量％的非离子表面活性剂的混合物的表面活性剂混合物，其中重量百分比各自基于表面活性剂混合物的总重量，以及三聚氰胺 - 甲醛 可通过本发明的方法获得的泡沫以及所述泡沫的用途。

公开(公告)号：US11254795B2

公开(公告)日：2022-02-22

申请号：US16463014

申请日：2017-11-14

Applicant: BASF SE

Inventor： Johann Martin Szeifert ,  Bernhard Vath ,  Tobias Heinz Steinke ,  Bettina Wester ,  Cecile Schneider ,  Sebastian Alexander Weisse ,  Peter Wolf ,  Werner Lenz ,  Axel Kirste ,  David John Pung ,  Megan Roberts

IPC: C08J9/00 ,  C08J9/14 ,  C08G12/32

Abstract: A process for producing a melamine-formaldehyde foam by heating and foaming an aqueous mixture M using microwave radiation, said mixture M comprising at least one melamine-formal-dehyde precondensate, at least one curative, at least one surfactant, at least one blowing agent and at least one linear polymer with a number average molecular weight Mn in the range from 500 to 10,000 g/mol and at least two functional groups selected from OH, NH2 or COOH as well as a melamine-formaldehyde foam obtainable by this process and its use.

公开(公告)号：US12070030B2

公开(公告)日：2024-08-27

申请号：US17923242

申请日：2021-05-10

Applicant: BASF SE

Inventor： Sebastian Alexander Weisse ,  Bernhard Vath ,  Tobias Heinz Steinke ,  Robert D. Ober

IPC: A61L2/235 ,  A01N25/10 ,  A01N25/16 ,  A01N31/02 ,  A01N59/16 ,  B08B1/10 ,  C08J9/00 ,  C08J9/14 ,  A61L101/02

CPC classification number: A01N25/10 ,  A01N25/16 ,  A01N31/02 ,  A01N59/16 ,  A61L2/235 ,  B08B1/10 ,  C08J9/0066 ,  C08J9/141 ,  A61L2101/02 ,  A61L2202/17 ,  A61L2202/24 ,  C08J2203/14 ,  C08J2203/182 ,  C08J2205/05 ,  C08J2207/12 ,  C08J2361/28

Abstract: A method for cleaning medical equipment by scrubbing the equipment with an open-cell melamine-formaldehyde foam comprising an antibacterial active composition, and wherein the open-cell melamine-formaldehyde foam is prepared from a melamine-formaldehyde precondensate, wherein the molar ratio melamine to formaldehyde of the melamine-formaldehyde precondensate is smaller than 0.5.