BR0203370A - Processo para a preparação de poliisocianatos da série difenilmetano com reduzido valor cromático - Google Patents

Processo para a preparação de poliisocianatos da série difenilmetano com reduzido valor cromático

Info

Publication number
BR0203370A
BR0203370A BR0203370-4A BR0203370A BR0203370A BR 0203370 A BR0203370 A BR 0203370A BR 0203370 A BR0203370 A BR 0203370A BR 0203370 A BR0203370 A BR 0203370A
Authority
BR
Brazil
Prior art keywords
preparation
chromatic value
diphenylmethane series
polyisocyanates
low chromatic
Prior art date
Application number
BR0203370-4A
Other languages
English (en)
Inventor
Torsten Hagen
Friedhelm Kaemper
Daniel Koch
Heinz-Herbert Mueller
Original Assignee
Bayer Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR0203370A publication Critical patent/BR0203370A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/02—Polyamines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
    • C07C209/78—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton from carbonyl compounds, e.g. from formaldehyde, and amines having amino groups bound to carbon atoms of six-membered aromatic rings, with formation of methylene-diarylamines
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Abstract

"PROCESSO PARA A PREPARAçãO DE POLIISOCIANATOS DA SéRIE DIFENILMETANO COM REDUZIDO VALOR CROMáTICO". A invenção refere-se a um processo para a preparação de poliisocinatos da série difenilmetano, em que a) anilina e formaldeído são convertidos, em presença de um catalisador ácido, em poliaminas e a seguir b) a mistura reacional é neutralizada com uma base a temperatura superior a 110<198>C ou a mistura reacional é aquecida após a neutralização com uma base a uma temperatura superior a 110<198>C e a seguir c) a poliamina é convertida, por meio de fosgenação, nos correspondentes poliisocianatos.
BR0203370-4A 2001-08-24 2002-08-23 Processo para a preparação de poliisocianatos da série difenilmetano com reduzido valor cromático BR0203370A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10141620A DE10141620A1 (de) 2001-08-24 2001-08-24 Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert

Publications (1)

Publication Number Publication Date
BR0203370A true BR0203370A (pt) 2003-05-27

Family

ID=7696548

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0203370-4A BR0203370A (pt) 2001-08-24 2002-08-23 Processo para a preparação de poliisocianatos da série difenilmetano com reduzido valor cromático

Country Status (16)

Country Link
US (1) US6720455B2 (pt)
EP (1) EP1288190B1 (pt)
JP (1) JP2003119235A (pt)
KR (1) KR100860910B1 (pt)
CN (1) CN1232499C (pt)
BR (1) BR0203370A (pt)
CA (1) CA2399483A1 (pt)
DE (2) DE10141620A1 (pt)
ES (1) ES2280459T3 (pt)
HK (1) HK1053105A1 (pt)
HU (1) HUP0202841A3 (pt)
MX (1) MXPA02008245A (pt)
PL (1) PL355618A1 (pt)
PT (1) PT1288190E (pt)
SG (1) SG99409A1 (pt)
TW (1) TW575594B (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10211021A1 (de) * 2002-03-13 2003-09-25 Bayer Ag Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert
DE10228734A1 (de) * 2002-06-27 2004-01-22 Bayer Ag Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert
DE102004032416A1 (de) * 2004-07-05 2006-02-02 Bayer Materialscience Ag Verfahren zur Herstellung von Polyaminen der Diphenylmethanreihe bei niedriger Protonierung
DE102004052370A1 (de) * 2004-10-28 2006-05-04 Bayer Materialscience Ag Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe
PT1960346E (pt) * 2005-12-08 2011-05-23 Huntsman Int Llc Processo para preparar diaminodifenilmetanos
DE102006004047A1 (de) * 2006-01-28 2007-08-02 Bayer Materialscience Ag Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe
CN101279923B (zh) * 2007-04-06 2010-08-25 宁波万华聚氨酯有限公司 一种制备多亚甲基多苯基多胺的方法
EP2145874B1 (en) * 2007-04-06 2011-07-27 Ningbo Wanhua Polyurethanes Co., Ltd. Process for the preparation of polymethylene polyphenyl polyamine
EP2000459A1 (en) * 2007-06-04 2008-12-10 Huntsman International Llc Process for the preparation of di-and polyamines of the diphenylmethane series
EP2062869A1 (en) * 2007-09-19 2009-05-27 Huntsman International Llc Process for the production of di-and polyamines of the diphenylmethane series
EP2039676A1 (en) 2007-09-19 2009-03-25 Huntsman International Llc Process for the production of di-and polyamines of the diphenylmethane series
ES2522820T3 (es) 2009-04-24 2014-11-18 Basf Se Procedimiento para la preparación de MDA y MDI de color estable
PT2513038E (pt) 2009-12-18 2015-03-05 Basf Se Processo em duas etapas para a separação económica de catalisadores homogéneos na síntese de mda
CN107827756B (zh) * 2017-11-17 2020-09-08 万华化学集团股份有限公司 一种低n-甲基杂质含量的二苯基甲烷系列二胺和多胺的制备方法及装置和催化剂
CN111646927A (zh) * 2020-06-12 2020-09-11 万华节能科技集团股份有限公司 阻燃二苯基甲烷二异氰酸酯的衍生物及其合成方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60199861A (ja) * 1984-03-23 1985-10-09 Mitsui Toatsu Chem Inc 芳香族ジアミン類の精製方法
DE4208359A1 (de) 1992-03-16 1993-09-23 Bayer Ag Verfahren zur herstellung von isocyanaten oder isocyanatgemischen und deren verwendung zur herstellung von polyurethanschaumstoffen
US5310769A (en) * 1992-05-01 1994-05-10 Bayer Aktiengesellschaft Process for the production of polyamine mixtures of the polyamino-polyaryl-polymethylene series
DE4232769A1 (de) 1992-09-30 1994-03-31 Basf Ag Verfahren zur Herstellung von Mischungen aus Diphenylmethandiisocyanaten und Polyphenyl-polymethylen-polyisocyanaten mit einer verminderten Iodfarbzahl
US6031136A (en) * 1993-07-21 2000-02-29 Bayer Corporation Process for preparing methylene diphenylamines by partial neutralization of acidic methylene diphenylamines
DE19804915A1 (de) 1998-02-07 1999-08-12 Basf Ag Verfahren zur Herstellung von Methylendi(phenylamin) und Methylendi(phenylisocyanat)
DE19815055A1 (de) 1998-04-03 1999-10-07 Bayer Ag Verfahren zur Farbaufhellung von polymeren Diphenylmethandiisocyanat sowie die Verwendung von aufgehellten Diphenylmethandiisocyanat bei der Herstellung von Polyurethankunststoffen

Also Published As

Publication number Publication date
ES2280459T3 (es) 2007-09-16
HK1053105A1 (zh) 2003-10-10
TW575594B (en) 2004-02-11
EP1288190A3 (de) 2003-06-04
US6720455B2 (en) 2004-04-13
KR20030017415A (ko) 2003-03-03
JP2003119235A (ja) 2003-04-23
EP1288190B1 (de) 2007-01-10
KR100860910B1 (ko) 2008-09-29
US20030045745A1 (en) 2003-03-06
SG99409A1 (en) 2003-10-27
PT1288190E (pt) 2007-04-30
DE10141620A1 (de) 2003-03-06
EP1288190A2 (de) 2003-03-05
HU0202841D0 (pt) 2002-11-28
HUP0202841A2 (hu) 2003-03-28
PL355618A1 (en) 2003-03-10
CN1232499C (zh) 2005-12-21
DE50209217D1 (de) 2007-02-22
MXPA02008245A (es) 2005-09-08
HUP0202841A3 (en) 2004-03-01
CN1406925A (zh) 2003-04-02
CA2399483A1 (en) 2003-02-24

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A E 6A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1980 DE 16/12/2008.