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公开(公告)号:NZ710857A
公开(公告)日:2020-09-25
申请号:NZ71085714
申请日:2014-02-12
Applicant: BASF SE
Inventor: BERTKAU WALTER , MEI YU , ORTH ROBERT , SCHNEIDER THOMAS
Abstract: A method of producing leather comprising a plurality of steps, wherein methanesulfonic acid is used in at least one step selected from deliming, and wherein the pH in the deliming step is provided to be between pH 4 and 9. The methane sulfonic acid may be used in the form of a mixture with salts and/or other acids and/or acid derivatives such as e.g. ammonium sulfate. The leather product is preferably a chrome-tanned leather. The invention thereby aims to provide soft and attractive leathers and is efficient in practice.
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公开(公告)号:ZA201506725B
公开(公告)日:2017-09-27
申请号:ZA201506725
申请日:2015-09-11
Applicant: BASF SE
Inventor: SCHNEIDER THOMAS , BERTKAU WALTER , ORTH ROBERT , MEI YU
Abstract: Manufacturing leather using methanesulfonic acid in at least one step, is claimed. An independent claim is also included for the leather, which is prepared by the above mentioned method.
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公开(公告)号:MX2015010584A
公开(公告)日:2016-05-31
申请号:MX2015010584
申请日:2014-02-12
Applicant: BASF SE
Inventor: BERTKAU WALTER , MEI YU , ORTH ROBERT , SCHNEIDER THOMAS
IPC: C14C1/08
Abstract: En un método de producción de cuero que comprende una pluralidad de etapas, se usa ácido metansulfónico en al menos una etapa.
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公开(公告)号:ES2303286T3
公开(公告)日:2008-08-01
申请号:ES05820503
申请日:2005-12-16
Applicant: BASF SE
Inventor: WITTELER HELMUT , BERTKAU WALTER
IPC: B05D7/14
Abstract: Procedimiento para el recubrimiento de superficies metálicas, en el que se pone en contacto la superficie del metal con un copolímero, caracterizado porque la superficie metálica está contaminada con aceite y/o con grasa, la contaminación no se elimina como paso previo al recubrimiento, y el copolímero está constituido a partir de los componentes siguientes: (A) desde un 20 hasta un 95% en peso de hidrocarburos monoetilénicamente insaturados y/o de hidrocarburos con dos dobles enlaces conjugados, (B) desde un 5 hasta un 50% en peso de monómeros monoetilénicamente insaturados, que presentan grupos ácido y/o sus anhídridos o sus sales, así como (C) desde 0 hasta un 30% en peso de otros monómeros etilénicamente insaturados, diferentes de (A) y de (B).
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公开(公告)号:AT391196T
公开(公告)日:2008-04-15
申请号:AT06763689
申请日:2006-06-13
Applicant: BASF SE
Inventor: WITTELER HELMUT , BERTKAU WALTER , HEIDENFELDER THOMAS , GOETHLICH ALEXANDER , HAAS JENS , KLIPPEL FRANK , SCHORNICK GUNNAR
Abstract: Process for the passivation of metallic surfaces by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and Zn, Ca, Mg or Al ions, said process being in particular a continuous process for the passivation of strip metals.
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公开(公告)号:ES2616043T3
公开(公告)日:2017-06-09
申请号:ES14703867
申请日:2014-02-12
Applicant: BASF SE
Inventor: ORTH ROBERT , MEI YU , BERTKAU WALTER , SCHNEIDER THOMAS
Abstract: Procedimiento para la fabricación de cuero que comprende varias etapas, caracterizado porque en por lo menos una etapa elegida de entre descalcificación y engrasación, se usa ácido metanosulfónico.
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公开(公告)号:DK2681291T3
公开(公告)日:2016-02-08
申请号:DK12706834
申请日:2012-02-29
Applicant: BASF SE
Inventor: BERTKAU WALTER , STEIDL NORBERT
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公开(公告)号:CL2013000899A1
公开(公告)日:2014-02-21
申请号:CL2013000899
申请日:2013-04-03
Applicant: BASF SE , WINTERSHALL HOLDING GMBH
Inventor: BERTKAU WALTER , HATSCHER STEPHAN , FRENZEL STEFAN , OSSMER UWE
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公开(公告)号:BRPI0714839A2
公开(公告)日:2013-07-09
申请号:BRPI0714839
申请日:2007-07-18
Applicant: BASF SE
Inventor: KLIPPEL FRANK , GOETHLICH ALEXANDER , SCHORNICK GUNNAR , FEHRINGER DIETRICH , HEIDENFELDER THOMAS , WITTELER HELMUT , BERTKAU WALTER
Abstract: Process for passivating metallic surfaces, and a preparation suitable for implementing the process, comprising at least water, an acid, and a copolymer of functionalized (meth)acrylic esters, monomers containing phosphoric and/or phosphonic acid groups, monomers having COOH groups, and, if appropriate, further monomers. Copolymer which comprises said monomers.
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公开(公告)号:AU2011311627A1
公开(公告)日:2013-04-04
申请号:AU2011311627
申请日:2011-10-04
Applicant: BASF SE
Inventor: FESSENBECKER ACHIM , HAAS JENS , RICHTER FRANK , BERTKAU WALTER , SCHADE CHRISTIAN , WITTELER HELMUT
Abstract: The present invention relates to a method for passivating metallic surfaces, wherein the metallic surface is brought into contact with an aqueous composition containing at least one water-soluble polymer (X) that comprises acid groups, and at least one polyamine (P), wherein the pH of the composition is in the range from 0.5 to 2.
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