SG122820A1 - Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes - Google Patents

Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes

Info

Publication number
SG122820A1
SG122820A1 SG200402398A SG200402398A SG122820A1 SG 122820 A1 SG122820 A1 SG 122820A1 SG 200402398 A SG200402398 A SG 200402398A SG 200402398 A SG200402398 A SG 200402398A SG 122820 A1 SG122820 A1 SG 122820A1
Authority
SG
Singapore
Prior art keywords
distillation
mixture
isomeric diisocyanatodiphenylmethanes
diisocyanatodiphenylmethanes
isomeric
Prior art date
Application number
SG200402398A
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=SG122820(A1) "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 SG122820A1 publication Critical patent/SG122820A1/en

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)
SG200402398A 2003-05-08 2004-05-05 Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes SG122820A1 (en)

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
SG122820A1 true SG122820A1 (en) 2006-06-29

Family

ID=32991948

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200402398A SG122820A1 (en) 2003-05-08 2004-05-05 Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes

Country Status (8)

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

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DE102005004170A1 (de) * 2005-01-29 2006-08-03 Bayer Materialscience Ag Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane
DE102005026864A1 (de) 2005-06-10 2006-12-14 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
DE102005055189A1 (de) * 2005-11-19 2007-05-24 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
CN101003497B (zh) * 2007-01-09 2010-05-19 宁波万华聚氨酯有限公司 二苯基甲烷二异氰酸酯的同分异构体混合物的蒸馏处理方法
CN101003498B (zh) * 2007-01-09 2010-05-19 宁波万华聚氨酯有限公司 一种储存周期延长的4,4’-二苯基甲烷二异氰酸酯的制备方法
EP2398767B1 (en) * 2009-02-23 2015-05-13 GEA Niro PT B.V. Process for crystallizing and separating different diisocyanate isomers
JP2012521484A (ja) 2009-03-24 2012-09-13 ダウ グローバル テクノロジーズ エルエルシー 硬質ポリウレタンフォームの製造およびその使用
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US9279022B1 (en) 2014-09-08 2016-03-08 Sirrus, Inc. Solution polymers including one or more 1,1-disubstituted alkene compounds, solution polymerization methods, and polymer compositions
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US8907124B2 (en) 2010-11-17 2014-12-09 Basf Se Process for preparing methylenedi(phenyl isocyanate)
ES2533977T3 (es) 2010-11-17 2015-04-16 Basf Se Procedimiento para la purificación de mezclas que contienen 4,4'-metilendifenildiisocianato
US20120123153A1 (en) * 2010-11-17 2012-05-17 Basf Se Method for purifying mixtures comprising 4,4'-methylenediphenyl diisocyanate
US9505711B2 (en) 2010-11-17 2016-11-29 Basf Se Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate
EP2768917B1 (en) 2011-10-19 2018-12-05 Sirrus, Inc. Multifunctional monomers and methods for making them
WO2013081873A1 (en) * 2011-11-30 2013-06-06 Dow Global Technologies Llc Process for the production of methylene diphenyl diisocyanate isomer mixtures with high 2,4'- methylene diphenyl diisocyanate purity
DE102011087654A1 (de) 2011-12-02 2013-06-06 Bayer Materialscience Aktiengesellschaft Verfahren zur Herstellung von Isocyanaten
WO2013139703A1 (de) 2012-03-19 2013-09-26 Bayer Intellectual Property Gmbh Verfahren zur herstellung von isocyanaten
JP6345644B2 (ja) 2012-03-30 2018-06-20 シラス・インコーポレイテッド インク配合物およびコーティング配合物ならびにこれらを作製するための重合性の系
US10913875B2 (en) 2012-03-30 2021-02-09 Sirrus, Inc. Composite and laminate articles and polymerizable systems for producing the same
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CN105008438B (zh) 2012-11-16 2019-10-22 拜奥福米克斯公司 塑料粘结体系及方法
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WO2014110388A1 (en) 2013-01-11 2014-07-17 Bioformix Inc. Method to obtain methylene malonate via bis(hydroxymethyl) malonate pathway
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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CN105457324B (zh) 2014-08-20 2019-12-27 科思创德国股份有限公司 隔板精馏塔
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
US9416091B1 (en) 2015-02-04 2016-08-16 Sirrus, Inc. Catalytic transesterification of ester compounds with groups reactive under transesterification conditions
US10501400B2 (en) 2015-02-04 2019-12-10 Sirrus, Inc. Heterogeneous catalytic transesterification of ester compounds with groups reactive under transesterification conditions
US9334430B1 (en) 2015-05-29 2016-05-10 Sirrus, Inc. Encapsulated polymerization initiators, polymerization systems and methods using the same
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
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
US9567475B1 (en) 2016-06-03 2017-02-14 Sirrus, Inc. Coatings containing 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
PT3500553T (pt) 2016-08-17 2021-07-29 Covestro Deutschland Ag Processo para a produção de isocianato e pelo menos um outro produto químico num sistema de produção integrada
KR20190042680A (ko) 2016-09-01 2019-04-24 코베스트로 도이칠란트 아게 이소시아네이트를 제조하는 방법
CN110997751B (zh) 2017-07-03 2022-07-15 科思创德国股份有限公司 用于通过使h-官能反应物与光气反应制备化学产品的生产设备及其运行方法
MY201890A (en) * 2017-09-19 2024-03-22 Sulzer Management Ag Use of top dividing wall in isomerization unit
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
US11207611B1 (en) 2018-07-03 2021-12-28 Burns & Mcdonnell Engineering Company, Inc. Process for separating hydrocarbons in a liquid feed utilizing an externally heated reboiler connected to a divided wall column as the primary source of heat energy
CN120774813A (zh) 2019-12-18 2025-10-14 科思创德国股份有限公司 用于制备二苯基甲烷系列的二-和多异氰酸酯的方法
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

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB1346402A (en) * 1971-05-11 1974-02-13 Bayer Ag Polyisocyanates and their use in the production of polyurethane plastics
GB1417087A (en) * 1973-05-29 1975-12-10 Ici Ltd Polyisocyanates
US4189354A (en) * 1976-07-10 1980-02-19 Bayer Aktiengesellschaft Process for the production of diisocyanatodiphenyl methane isomers with an adjusted content of chlorine compounds
EP0079516A2 (de) * 1981-11-12 1983-05-25 Bayer Ag Verfahren zur Herstellung von 4,4'-Diisocyanatodiphenylmethan

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US2471134A (en) 1946-07-17 1949-05-24 Standard Oil Dev Co Fractionation apparatus
GB1423993A (en) 1972-05-04 1976-02-04 Ici Ltd Process for the crystallisation of diphenylmethane diisocyanate from a crude undistilled polyisocyanate mixture
DE2631168B2 (de) * 1976-07-10 1979-03-08 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Diisocyanatodiphenylmethan-Isomeren mit einem eingestellten Gehalt an Chlorverbindungen
DE2933601C2 (de) 1979-08-18 1985-07-11 Basf Ag, 6700 Ludwigshafen Verfahren zur Gewinnung von Mischungen aus Diphenyl-methan-diisocyanat-Isomeren und gegebenenfalls reinem 4,4'-Diphenylmethan-diisocyanat mit einem geringen Gehalt an Uretdionen und hydrolysierbaren Chlorverbindungen
JP2951782B2 (ja) * 1991-12-17 1999-09-20 三井化学株式会社 ４，４’−ジフェニルメタンジイソシアネートの製造方法
JPH09299702A (ja) * 1996-05-16 1997-11-25 Kyowa Yuka Kk 蒸留方法
JP3329732B2 (ja) * 1998-05-06 2002-09-30 住友重機械工業株式会社 蒸留装置
US20030047438A1 (en) * 1998-05-06 2003-03-13 Sumitomo Heavy Industries, Ltd. Distillation apparatus and distillation method
JP3329750B2 (ja) * 1998-11-05 2002-09-30 住友重機械工業株式会社 蒸留装置及びその蒸留方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346402A (en) * 1971-05-11 1974-02-13 Bayer Ag Polyisocyanates and their use in the production of polyurethane plastics
GB1417087A (en) * 1973-05-29 1975-12-10 Ici Ltd Polyisocyanates
US4189354A (en) * 1976-07-10 1980-02-19 Bayer Aktiengesellschaft Process for the production of diisocyanatodiphenyl methane isomers with an adjusted content of chlorine compounds
EP0079516A2 (de) * 1981-11-12 1983-05-25 Bayer Ag Verfahren zur Herstellung von 4,4'-Diisocyanatodiphenylmethan
US4414074A (en) * 1981-11-12 1983-11-08 Bayer Aktiengesellschaft Process for the purification of 4,4'-diisocyanatodiphenylmethane by plural distillations

Also Published As

Publication number Publication date
CA2466464A1 (en) 2004-11-08
KR20040095700A (ko) 2004-11-15
CN1550493A (zh) 2004-12-01
EP1475367B1 (de) 2010-07-07
HK1071355A1 (en) 2005-07-15
US20040236139A1 (en) 2004-11-25
JP2004331667A (ja) 2004-11-25
EP1475367A1 (de) 2004-11-10
CN1310878C (zh) 2007-04-18
US7649108B2 (en) 2010-01-19
KR101075296B1 (ko) 2011-10-19
JP4868717B2 (ja) 2012-02-01
BRPI0401699A (pt) 2005-02-22

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