BR0300489A - Processo para a preparação de poliisocianatos da série difenilmetano com menor valor de cor - Google Patents

Processo para a preparação de poliisocianatos da série difenilmetano com menor valor de cor

Info

Publication number
BR0300489A
BR0300489A BR0300489-9A BR0300489A BR0300489A BR 0300489 A BR0300489 A BR 0300489A BR 0300489 A BR0300489 A BR 0300489A BR 0300489 A BR0300489 A BR 0300489A
Authority
BR
Brazil
Prior art keywords
diphenylmethane series
color value
lower color
preparing lower
polyisocyanates
Prior art date
Application number
BR0300489-9A
Other languages
English (en)
Inventor
Torsten Hagen
Friedhelm Kaemper
Daniel Koch
Rudolf Uchdorf
Stefan Wershofen
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 BR0300489A publication Critical patent/BR0300489A/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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

"PROCESSO PARA A PREPARAçãO DE POLIISOCIANATOS DA SéRIE DIFENILMETANO COM MENOR VALOR DE COR". A invenção refere-se a um processo para a preparação de poliisocianatos da série difenilmetano, no qual a) reage-se anilina e formaldeído na presença de um catalisador ácido para formar poliaminas e depois b) neutraliza-se a mistura de reação com uma base, após a neutralização separa-se a fase aquosa e a orgânica e adiciona-se a fase orgânica com uma base e depois c) reagem-se as poliaminas por fosgenação para formar poliisocianatos correspondentes.
BR0300489-9A 2002-03-13 2003-03-12 Processo para a preparação de poliisocianatos da série difenilmetano com menor valor de cor BR0300489A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10211021A DE10211021A1 (de) 2002-03-13 2002-03-13 Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert

Publications (1)

Publication Number Publication Date
BR0300489A true BR0300489A (pt) 2004-08-17

Family

ID=27762897

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0300489-9A BR0300489A (pt) 2002-03-13 2003-03-12 Processo para a preparação de poliisocianatos da série difenilmetano com menor valor de cor

Country Status (13)

Country Link
US (1) US6639102B2 (pt)
EP (1) EP1344766B1 (pt)
JP (1) JP4250440B2 (pt)
KR (1) KR100937088B1 (pt)
CN (1) CN100422239C (pt)
AT (1) ATE312070T1 (pt)
BR (1) BR0300489A (pt)
CA (1) CA2421395A1 (pt)
DE (2) DE10211021A1 (pt)
ES (1) ES2253594T3 (pt)
MX (1) MXPA03002071A (pt)
PL (1) PL359111A1 (pt)
TW (1) TW200400207A (pt)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10228734A1 (de) * 2002-06-27 2004-01-22 Bayer Ag Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert
DE10347438A1 (de) * 2003-10-13 2005-05-04 Bayer Materialscience Ag Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe
DE102004005320A1 (de) * 2004-02-04 2005-08-25 Bayer Materialscience Ag Herstellung von Di- und Polysocyanaten der Diphenylmethanreihe mit definierter Acidität
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
DE102005006692A1 (de) * 2005-02-15 2006-08-24 Bayer Materialscience Ag Verfahren zur Herstellung von Di-und Polyaminen der Diphenylmethanreihe
JP4723882B2 (ja) * 2005-03-10 2011-07-13 三井化学株式会社 ポリイソシアネートの製造方法
EP1857438B1 (en) * 2005-03-10 2018-10-10 Mitsui Chemicals, Inc. Process for production of polyisocyanate and equipment for production thereof
DE102006004041A1 (de) * 2006-01-28 2007-08-02 Bayer Materialscience Ag Verfahren zur Herstellung von Di- und Polyaminen der Diphenylmethanreihe
EP2019092B1 (en) * 2006-05-19 2013-07-03 Mitsui Chemicals, Inc. Process for producing polyamine
US8329951B2 (en) * 2007-01-08 2012-12-11 Basf Se Process for preparing diphenylmethanediamine
ATE536339T1 (de) * 2007-06-12 2011-12-15 Basf Se Verfahren zur rückgewinnung von mineralsäuren bei der herstellung von diphenylmethandiamin
DE102008012037A1 (de) * 2008-03-01 2009-09-03 Bayer Materialscience Ag Verfahren zur Herstellung von Methylen-diphenyl-diisocyanaten
WO2010121997A1 (de) 2009-04-24 2010-10-28 Basf Se Verfahren zur herstellung von farbstabilem mda und mdi
ES2536706T3 (es) 2009-12-18 2015-05-27 Basf Se Procedimiento en dos etapas para la separación económica de catalizadores homogéneos en la síntesis de MDA
WO2012088671A1 (zh) * 2010-12-29 2012-07-05 烟台万华聚氨酯股份有限公司 一种快速混合反应器及其应用
EP2768800B1 (de) * 2011-10-21 2016-01-20 Covestro Deutschland AG Verfahren zur herstellung farbheller polyisocyanate
WO2014173856A1 (de) * 2013-04-24 2014-10-30 Bayer Materialscience Ag Verfahren zur herstellung von di- und polyaminen der diphenylmethanreihe
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

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025557A (en) * 1972-06-03 1977-05-24 Bayer Aktiengesellschaft Process for the production of polyamines
US4163019A (en) * 1978-07-10 1979-07-31 Shell Oil Company Production of 4,4'-alkylidene diphenyl diisocyanate
CN1018080B (zh) * 1989-03-13 1992-09-02 贾晓岭 机械蓄能式发动机起动器
US5386059A (en) * 1991-12-10 1995-01-31 Miles Inc. Process for preparing polyamines for lighter color polyisocyanate based foam
DE4208359A1 (de) 1992-03-16 1993-09-23 Bayer Ag Verfahren zur herstellung von isocyanaten oder isocyanatgemischen und deren verwendung zur herstellung von polyurethanschaumstoffen
KR970001071B1 (ko) * 1992-06-23 1997-01-25 미쓰이도오아쓰가가꾸 가부시끼가이샤 메틸렌 가교 폴리페닐렌 폴리이소시아네이트의 제조방법
US6031136A (en) * 1993-07-21 2000-02-29 Bayer Corporation Process for preparing methylene diphenylamines by partial neutralization of acidic methylene diphenylamines
DE19513069A1 (de) * 1995-04-07 1996-10-10 Bayer Ag Fraktionierung und Reinigung von aromatischen Polyamingemischen und deren Verwendung
DE19513146A1 (de) * 1995-04-07 1996-10-10 Bayer Ag Fraktionierung und Reinigung von aromatischen Polyamingemischen und deren Verwendung
JPH11128748A (ja) 1997-10-31 1999-05-18 Shin Etsu Chem Co Ltd 白金錯体触媒
DE19804915A1 (de) 1998-02-07 1999-08-12 Basf Ag Verfahren zur Herstellung von Methylendi(phenylamin) und Methylendi(phenylisocyanat)
US6127463A (en) * 1999-03-23 2000-10-03 Bayer Corporation Polymeric MDI color reduction
DE10141620A1 (de) * 2001-08-24 2003-03-06 Bayer Ag Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert

Also Published As

Publication number Publication date
US6639102B2 (en) 2003-10-28
TW200400207A (en) 2004-01-01
JP2003313155A (ja) 2003-11-06
MXPA03002071A (es) 2004-07-29
KR100937088B1 (ko) 2010-01-15
PL359111A1 (en) 2003-09-22
EP1344766A3 (de) 2004-01-07
KR20030074373A (ko) 2003-09-19
ES2253594T3 (es) 2006-06-01
US20030176626A1 (en) 2003-09-18
ATE312070T1 (de) 2005-12-15
EP1344766B1 (de) 2005-12-07
JP4250440B2 (ja) 2009-04-08
CN100422239C (zh) 2008-10-01
DE10211021A1 (de) 2003-09-25
CN1443796A (zh) 2003-09-24
CA2421395A1 (en) 2003-09-13
EP1344766A2 (de) 2003-09-17
DE50301828D1 (de) 2006-01-12

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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 , 6A E 7A 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 8.6 DA RPI 2038 DE 26/01/2010.