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公开(公告)号:TR199802417T2
公开(公告)日:1999-03-22
申请号:TR9802417
申请日:1997-05-22
Applicant: BASF AG
Inventor: HUEBINGER WOLFGANG , KELLER PETER , KAISER RUDOLF , HEIDER WOLFGANG , EIDEN ULRICH
Abstract: In the counterflown column for lowering the residual volatile substance content of dispersions, having 5 to 50 vertical and/or transverse flow filter bases, the specific free aperture area in the vertical flow filter bases is 2 to 25 % and in the transverse flow filter bases 1 to 10 %, and the mean aperture diameter is 10 to 50 mm in the vertical and 2 to 10 mm in the transverse flow filter bases.
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公开(公告)号:BR9703612A
公开(公告)日:1998-11-10
申请号:BR9703612
申请日:1997-06-17
Applicant: BASF AG
Inventor: KELLER PETER
IPC: C09K23/52 , C08F2/22 , C08F2/24 , C08F2/44 , C08F291/00 , C09D109/00 , C09D123/00 , C09D125/04 , C09D129/10 , C09D131/02 , C09D133/04 , C09D133/20 , C09D135/02 , C09D151/00 , C09J109/00 , C09J123/00 , C09J125/04 , C09J129/10 , C09J131/02 , C09J133/04 , C09J133/20 , C09J135/02 , C09J151/00 , C14C11/00
Abstract: Production of aqueous polymer dispersions with low viscosity and a polymer volume concentration NOTLESS 50 vol.% comprises free radical emulsion polymerisation of ethylenically unsaturated monomers, except vinylidene halides, in the presence of initiator(s) and a starting polymer. Most of the monomers are emulsified in an aqueous dispersion of the starting polymer and this emulsion is transferred continuously to the polymerisation reaction.
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公开(公告)号:AU2494197A
公开(公告)日:1998-01-08
申请号:AU2494197
申请日:1997-06-16
Applicant: BASF AG
Inventor: KELLER PETER , MEISTER MARTIN , SCHLACKERT WERNER , STANGER BERND
Abstract: A process for the production of low-viscosity, aqueous polymer dispersions (APD), with polymer concentrations of at least 50 vol% and viscosities of less than 1000 mPa.s, comprises radical emulsion polymerisation of ethylenic monomers (except vinyl and vinylidene halides), by the monomer addition method, in the presence of an initiator and small amounts of water-miscible organic solvent(s) (I). Also claimed are APD obtained by this process.
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公开(公告)号:CO4410405A1
公开(公告)日:1997-01-09
申请号:CO95010740
申请日:1995-03-16
Applicant: BASF AG
Inventor: STANGER BERND , KELLER PETER , HARTMANN JURGEN , CHUNG-JI TSCHANG
IPC: C08F4/40 , C08F2/22 , C08F6/00 , C08F110/00 , C08F214/04
Abstract: 1. PROCEDIMIENTO PARA LA OBTENCION DE UNA DISPER- SION ACUOSA DE POLIMERIZADO, EN EL QUE UNA DISPER- SION ACUOSA DE UN POLIMERIZADO, QUE CONTIENE IN- CORPORADOS EN FORMA QUIMICAMENTE LIGADA, COMO MINIMO, DOS MONOMEROS A Y B DIFERENTES ENTRE SI, QUE PRESENTAN AL MENOS UN GRUPO ETILENICAMENTE IN- SATURADO, ES GENERADA EN FORMA EN SI CONOCIDA, DE TAL MODO, QUE EL CONTENIDO TOTAL DE LA DISPERSION ACUOSA DE POLIMERIZADO EN MONOMEROS LIBRES, A SABER, NO LIGADOS QUIMICAMENTE, Y QUE PRESENTAN AL MENOS UN ENLACE DOBLE ETILENICAMENTE INSATURA- DO, CON RESPECTO A LA DISPERSION ACUOSA DE POLIME- RIZADO, ASCIENDA DE > O HASTA
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公开(公告)号:CA2046365C
公开(公告)日:1996-08-13
申请号:CA2046365
申请日:1991-07-05
Applicant: BASF AG
Inventor: SCHERZER DIETRICH , MINGES ROLAND , BRUCHMANN BERND , HEIDER WOLFGANG , VAN PEE WILLY , KELLER PETER
IPC: C07C263/10 , C07C263/18 , C07C263/20 , C07C265/14 , C08G18/76
Abstract: Mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (crude MDI) of reduced iodine color number are prepared by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at elevated temperature, at least one monohydric or polyhydric polyoxyalkylene alcohol, preferably having a functionality of from 2 to 3, and advantageously having a hydroxyl number of from 20 to 1800, or mixtures thereof in an effective amount, expediently in an amount of from 0.1 to 10% by weight, based on the weight of the crude MDI, being introduced into the reaction mixture when the phosgenation is complete, the phosgene and the inert organic solvent then being removed, up to 5% by weight, based on the weight of crude MDI, of at least one phenol-based antioxidant and/or aryl phosphite being added, if desired to the reaction product, and the reaction mixture being heated.
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公开(公告)号:CA2190995A1
公开(公告)日:1995-12-14
申请号:CA2190995
申请日:1995-02-20
Applicant: BASF AG
Inventor: STANGER BERND , KELLER PETER , HARTMANN JUERGEN , TSCHANG CHUNG-JI
IPC: C08F4/40 , C08F2/22 , C08F6/00 , C08F214/04 , C08F220/06 , C08F6/14
Abstract: Described is a method of producing an aqueous polymer dispersion, the method calling for further polymerization of the dispersion using a radical mechanism redox initiator system including as the reducing agent the addition compound obtained between a lower ketone and hydrogen sulphite.
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公开(公告)号:ES2179458T5
公开(公告)日:2007-05-01
申请号:ES98906947
申请日:1998-02-12
Applicant: BASF AG
Inventor: STANGER BERND , KELLER PETER , WISTUBA ECKEHARDT , DRAGON ANDREE
Abstract: Sistema emulsionante, constituido por: a) al menos una sal de un semiéster del ácido sulfúrico de un alcohol con 9 a 15 átomos de carbono o de un alcohol, alcoxilado, con 9 a 15 átomos de carbono, b) al menos un alcohol, alcoxilado, con 8 a 16 átomos de carbono, y, en caso dado, adicionalmente un condensado de formaldehido-ácido fenol- o naftalinsulfónico.
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68.
公开(公告)号:ES2246554T3
公开(公告)日:2006-02-16
申请号:ES99112059
申请日:1999-06-22
Applicant: BASF AG
Inventor: DOBBELAAR JOHANNES , HUBINGER WOLFGANG , KELLER PETER , STANGER BERND
IPC: C08F6/00
Abstract: LA PRESENTE INVENCION TRATA DE UN PROCEDIMIENTO PARA LA RETIRADA DE RESIDUOS VOLATILES DE DISPERSIONES POLIMERICAS, REALIZANDOSE PRIMERO UNA DESODORIZACION QUIMICA UTILIZANDO UN INICIADOR PARA RETIRAR LOS MONOMEROS RESIDUALES, Y A CONTINUACION UNA DESODORIZACION FISICA PARA RETIRAR LOS COMPONENTES VOLATILES, REALIZANDOSE LA DESODORIZACION QUIMICA DURANTE TANTO TIEMPO, HASTA QUE LA RETIRADA DE MONOMEROS SEA MAS FUERTE QUE LA ADICION DE LOS COMPONENTES SECUNDARIOS QUE SE INTRODUCEN EN LA DISPERSION MEDIANTE EL INICIADOR. EL PROCEDIMIENTO DE LA INVENCION DA UNA MANERA SEGURA DISPERSIONES POLIMERICAS CON UN CONTENIDO EN RESIDUOS VOLATILES DE
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公开(公告)号:DE59912481D1
公开(公告)日:2005-10-06
申请号:DE59912481
申请日:1999-06-22
Applicant: BASF AG
Inventor: DOBBELAAR JOHANNES , HUEBINGER WOLFGANG , KELLER PETER , STANGER BERND
IPC: C08F6/00
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公开(公告)号:ES2229776T3
公开(公告)日:2005-04-16
申请号:ES99950707
申请日:1999-10-12
Applicant: BASF AG
Inventor: HUBINGER WOLFGANG , STAUFER GUNTER , KELLER PETER
Abstract: Empleo de un tubo de stripping con funcionamiento en contracorriente, con un tubo (101; 201) de la columna compuesto por varios segmentos (101a-c; 201a-d) del tubo unidos entre sí mediante bridas, en el que están dispuestos platos (102; 202) perforados, de modo que en cada caso están unidos entre sí varios platos (102; 202) perforados sucesivos y forman al menos dos piezas (111a-c; 211a-d) insertadas que pueden extraerse del tubo (101; 201) de la columna, conexiones (105, 108; 205, 208) para alimentar y evacuar los productos de reacción y conexiones (106, 107; 206, 207) para alimentar al menos un medio de stripping en contracorriente a los productos de reacción y evacuarlo de éstos para separar los componentes orgánicos volátiles de los productos de reacción poliméricos.
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