BRPI0401699A - Processo para a destilação de uma mistura de diisocianatodifenilmetanos isÈmeros - Google Patents

Processo para a destilação de uma mistura de diisocianatodifenilmetanos isÈmeros

Info

Publication number
BRPI0401699A
BRPI0401699A BR0401699-8A BRPI0401699A BRPI0401699A BR PI0401699 A BRPI0401699 A BR PI0401699A BR PI0401699 A BRPI0401699 A BR PI0401699A BR PI0401699 A BRPI0401699 A BR PI0401699A
Authority
BR
Brazil
Prior art keywords
distillation
mixture
isomers
diisocyanatodiphenylmethanes
diisocyanatodiphenylmethane
Prior art date
Application number
BR0401699-8A
Other languages
English (en)
Inventor
Hans-Peter Dr Schal
Ulrich Wolf
Bernd Thelen
Original Assignee
Bayer Materialscience 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32991948&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0401699(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE102004001872A external-priority patent/DE102004001872A1/de
Application filed by Bayer Materialscience Ag filed Critical Bayer Materialscience Ag
Publication of BRPI0401699A publication Critical patent/BRPI0401699A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/12—Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

"PROCESSO PARA A DESTILAçãO DE UMA MISTURA DE DIISOCIANATODIFENILMETANOS ISÈMEROS". A invenção refere-se a um processo para a destilação de uma mistura de diisocianatodifenilmetanos isómeros, pelo menos constituídos de 2,2<39>-diisocianatodifenilmetano, 2,4<39>-diisocianatodifenilmetano e 4,4<39>-diisocianatodifenilmetano, sendo que a destilação é efetuada em pelo menos um estágio e em pelo menos um estágio de destilação é empregada uma coluna de parede de separação.
BR0401699-8A 2003-05-08 2004-05-06 Processo para a destilação de uma mistura de diisocianatodifenilmetanos isÈmeros BRPI0401699A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10320504 2003-05-08
DE102004001872A DE102004001872A1 (de) 2003-05-08 2004-01-14 Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane

Publications (1)

Publication Number Publication Date
BRPI0401699A true BRPI0401699A (pt) 2005-02-22

Family

ID=32991948

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0401699-8A BRPI0401699A (pt) 2003-05-08 2004-05-06 Processo para a destilação de uma mistura de diisocianatodifenilmetanos isÈmeros

Country Status (8)

Country Link
US (1) US7649108B2 (pt)
EP (1) EP1475367B1 (pt)
JP (1) JP4868717B2 (pt)
KR (1) KR101075296B1 (pt)
CN (1) CN1310878C (pt)
BR (1) BRPI0401699A (pt)
CA (1) CA2466464A1 (pt)
SG (1) SG122820A1 (pt)

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HUE030678T2 (hu) 2010-11-17 2017-05-29 Basf Se Eljárás 4,4'-metilén-difenil-diizocianátot tartalmazó keverékek tisztítására
US9505711B2 (en) 2010-11-17 2016-11-29 Basf Se Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate
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JP6188252B2 (ja) 2012-03-30 2017-08-30 シラス・インコーポレイテッド 重合性組成物の活性化方法、重合系およびこれにより形成される製品
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CA2869115A1 (en) 2012-03-30 2013-10-03 Bioformix Inc. Ink and coating formulations and polymerizable systems for producing the same
US10047192B2 (en) 2012-06-01 2018-08-14 Sirrus, Inc. Optical material and articles formed therefrom
WO2014078689A1 (en) 2012-11-16 2014-05-22 Bioformix Inc. Plastics bonding systems and methods
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DE102013207282A1 (de) * 2013-04-22 2014-11-06 Wacker Chemie Ag Verfahren und Vorrichtung zur destillativen Trennung eines Drei- oder Mehrkomponentengemisches
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US10428177B2 (en) 2016-06-03 2019-10-01 Sirrus, Inc. Water absorbing or water soluble polymers, intermediate compounds, and methods thereof
US9617377B1 (en) 2016-06-03 2017-04-11 Sirrus, Inc. Polyester macromers containing 1,1-dicarbonyl-substituted 1 alkenes
CN109563028B (zh) 2016-08-17 2021-11-19 科思创德国股份有限公司 在生产联合体中制备异氰酸酯和至少一种其他化学产品的方法
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AU2018335261B2 (en) * 2017-09-19 2023-10-19 Sulzer Management Ag Use of top dividing wall in isomerization unit
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Also Published As

Publication number Publication date
EP1475367B1 (de) 2010-07-07
CA2466464A1 (en) 2004-11-08
US7649108B2 (en) 2010-01-19
KR20040095700A (ko) 2004-11-15
HK1071355A1 (en) 2005-07-15
JP2004331667A (ja) 2004-11-25
SG122820A1 (en) 2006-06-29
JP4868717B2 (ja) 2012-02-01
CN1550493A (zh) 2004-12-01
US20040236139A1 (en) 2004-11-25
EP1475367A1 (de) 2004-11-10
CN1310878C (zh) 2007-04-18
KR101075296B1 (ko) 2011-10-19

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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 AS 6A, 7A E 8A 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 PUBLICADO NA RPI 2160 DE 29/05/2012.