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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 (9)

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)
HK (1) HK1071355A1 (pt)
SG (1) SG122820A1 (pt)

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US20120123153A1 (en) * 2010-11-17 2012-05-17 Basf Se Method for purifying mixtures comprising 4,4'-methylenediphenyl diisocyanate
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CN104039757B (zh) * 2011-11-30 2019-01-04 陶氏环球技术有限责任公司 亚甲基二苯基二异氰酸酯异构体混合物的生产方法
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HUE035678T2 (en) 2012-03-19 2018-05-28 Covestro Deutschland Ag Process for the preparation of isocyanates
EP2831185B1 (en) 2012-03-30 2019-09-25 Sirrus, Inc. Ink and coating formulations and polymerizable systems for producing the same
US9181365B2 (en) 2012-03-30 2015-11-10 Sirrus, Inc. Methods for activating polymerizable compositions, polymerizable systems, and products formed thereby
US10913875B2 (en) 2012-03-30 2021-02-09 Sirrus, Inc. Composite and laminate articles and polymerizable systems for producing the same
WO2013181600A2 (en) 2012-06-01 2013-12-05 Bioformix Inc. Optical material and articles formed therefrom
EP2920231B1 (en) 2012-11-16 2020-05-06 Sirrus, Inc. Plastics bonding systems and methods
EP3712928A1 (en) 2012-11-30 2020-09-23 Sirrus, Inc. Composite compositions for electronics applications
CN110204441A (zh) 2013-01-11 2019-09-06 瑟拉斯公司 经过双(羟甲基)丙二酸酯的途径获得亚甲基丙二酸酯的方法
DE102013207282A1 (de) * 2013-04-22 2014-11-06 Wacker Chemie Ag Verfahren und Vorrichtung zur destillativen Trennung eines Drei- oder Mehrkomponentengemisches
JP6640125B2 (ja) 2014-06-24 2020-02-05 コベストロ、ドイチュラント、アクチエンゲゼルシャフトＣｏｖｅｓｔｒｏ Ｄｅｕｔｓｃｈｌａｎｄ Ａｇ 運転の中断を伴う化学製品の製造方法
CN105457324B (zh) 2014-08-20 2019-12-27 科思创德国股份有限公司 隔板精馏塔
US9416091B1 (en) 2015-02-04 2016-08-16 Sirrus, Inc. Catalytic transesterification of ester compounds with groups reactive under transesterification conditions
US9315597B2 (en) 2014-09-08 2016-04-19 Sirrus, Inc. Compositions containing 1,1-disubstituted alkene compounds for preparing polymers having enhanced glass transition temperatures
US10501400B2 (en) 2015-02-04 2019-12-10 Sirrus, Inc. Heterogeneous catalytic transesterification of ester compounds with groups reactive under transesterification conditions
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US9217098B1 (en) 2015-06-01 2015-12-22 Sirrus, Inc. Electroinitiated polymerization of compositions having a 1,1-disubstituted alkene compound
US9518001B1 (en) 2016-05-13 2016-12-13 Sirrus, Inc. High purity 1,1-dicarbonyl substituted-1-alkenes and methods for their preparation
US9617377B1 (en) 2016-06-03 2017-04-11 Sirrus, Inc. Polyester macromers containing 1,1-dicarbonyl-substituted 1 alkenes
US10428177B2 (en) 2016-06-03 2019-10-01 Sirrus, Inc. Water absorbing or water soluble polymers, intermediate compounds, and methods thereof
US9567475B1 (en) 2016-06-03 2017-02-14 Sirrus, Inc. Coatings containing polyester macromers containing 1,1-dicarbonyl-substituted 1 alkenes
US10196481B2 (en) 2016-06-03 2019-02-05 Sirrus, Inc. Polymer and other compounds functionalized with terminal 1,1-disubstituted alkene monomer(s) and methods thereof
JP7022113B2 (ja) 2016-08-17 2022-02-17 コベストロ、ドイチュラント、アクチエンゲゼルシャフト 統合された製造におけるイソシアネートおよび少なくとも１つの追加の化学製品の製造方法
WO2018041799A1 (de) 2016-09-01 2018-03-08 Covestro Deutschland Ag Verfahren zur herstellung von isocyanaten
EP3649179B1 (de) 2017-07-03 2021-08-11 Covestro Intellectual Property GmbH & Co. KG Produktionsanlage zur herstellung eines chemischen produkts durch umsetzung h-funktioneller reaktanten mit phosgen und verfahren zum betreiben derselben
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EP3498689A1 (en) 2017-12-14 2019-06-19 Sulzer Chemtech AG A plant and method for purifying an isomeric monomer, such as 4,4'-methylene diphenyl diisocyanate, from a crude mixture
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HUE068845T2 (hu) 2019-12-18 2025-01-28 Covestro Deutschland Ag Eljárás a difenilmetán-sorozatba tartozó di- és poliizocianátok elõállítására
RU2750198C1 (ru) * 2020-08-13 2021-06-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Российский химико-технологический университет имени Д.И. Менделеева" (РХТУ им. Д.И. Менделеева) Способ получения метилендифенилдиизоцианата

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Also Published As

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