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 (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)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103180292B (zh) * 2010-09-24 2015-09-16 陶氏环球技术有限责任公司 生产具有特定的异构体分布的亚甲基二苯基二异氰酸酯异构体的混合物和由其衍生的新产物的方法
US9828324B2 (en) 2010-10-20 2017-11-28 Sirrus, Inc. Methylene beta-diketone monomers, methods for making methylene beta-diketone monomers, polymerizable compositions and products formed therefrom
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
US10414839B2 (en) 2010-10-20 2019-09-17 Sirrus, Inc. Polymers including a methylene beta-ketoester and products formed therefrom
SG189937A1 (en) 2010-10-20 2013-06-28 Bioformix Inc Synthesis of methylene malonates using rapid recovery in the presence of a heat transfer agent
US9249265B1 (en) 2014-09-08 2016-02-02 Sirrus, Inc. Emulsion polymers including one or more 1,1-disubstituted alkene compounds, emulsion methods, and polymer compositions
US8907124B2 (en) 2010-11-17 2014-12-09 Basf Se Process for preparing methylenedi(phenyl isocyanate)
US9505711B2 (en) 2010-11-17 2016-11-29 Basf Se Method for purifying mixtures comprising 4,4′-methylenediphenyl diisocyanate
BR112013012255A2 (pt) 2010-11-17 2016-08-09 Basf Se processo para preparar di - isocianato de metileno difenila
HUE030678T2 (hu) 2010-11-17 2017-05-29 Basf Se Eljárás 4,4'-metilén-difenil-diizocianátot tartalmazó keverékek tisztítására
JP6046043B2 (ja) 2010-11-17 2016-12-14 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ ４，４’−メチレンジフェニルジイソシアネートを含む混合物を精錬するための方法
US20120123153A1 (en) * 2010-11-17 2012-05-17 Basf Se Method for purifying mixtures comprising 4,4'-methylenediphenyl diisocyanate
JP6267643B2 (ja) 2011-10-19 2018-01-24 シラス・インコーポレイテッド 多官能性モノマー、多官能性モノマーを製造する方法、これらから形成された重合性組成物および製品
EP2785685B1 (en) * 2011-11-30 2017-09-27 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
ES2658214T3 (es) 2012-03-19 2018-03-08 Covestro Deutschland Ag Procedimiento para la preparación de isocianatos
EP2831125B1 (en) 2012-03-30 2016-10-05 Sirrus, Inc. Methods for activating polymerizable compositions, polymerizable systems, and products formed thereby
WO2013149173A1 (en) 2012-03-30 2013-10-03 Bioformix Inc. Ink and coating formulations and polymerizable systems for producing the same
EP2831124B1 (en) 2012-03-30 2016-10-05 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
JP6549038B2 (ja) 2012-11-30 2019-07-24 シラス・インコーポレイテッド エレクトロニクス適用のための複合組成物
EP2943462B1 (en) 2013-01-11 2018-06-27 Sirrus, 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
CN106458842B (zh) 2014-06-24 2020-02-11 科思创德国股份有限公司 具有运行中断的用于制备化学产物的方法
CN105457324B (zh) 2014-08-20 2019-12-27 科思创德国股份有限公司 隔板精馏塔
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
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
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
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
CN109641175B (zh) 2016-09-01 2021-07-30 科思创德国股份有限公司 制备异氰酸酯的方法
WO2019007834A1 (de) 2017-07-03 2019-01-10 Covestro Deutschland Ag Produktionsanlage zur herstellung eines chemischen produkts durch umsetzung h-funktioneller reaktanten mit phosgen und verfahren zum betreiben derselben
US10653974B2 (en) * 2017-09-19 2020-05-19 Gtc Technology Us Llc 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
KR20220114554A (ko) 2019-12-18 2022-08-17 코베스트로 도이칠란트 아게 디페닐메탄 계열의 디- 및 폴리이소시아네이트를 생산하는 방법
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)

* 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

Family Cites Families (9)

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

Similar Documents

Publication Publication Date Title
HK1071355A1 (en) Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes
HUE045265T2 (hu) Eljárás izomer diizocianátodifenilmetán elegyek desztillálására
PL375316A1 (en) Process for preparing certain pyrrolotriazine compounds
ZA200405256B (en) Process for the production of hydrocarbons
GB0202216D0 (en) Novel compounds
GB0222056D0 (en) Process for the manufacture of organic compounds
GB0202679D0 (en) Novel compounds
PL371383A1 (en) Process for the manufacture of organic compounds
GB0204129D0 (en) Process for the manufacture of organic compounds
GB0316546D0 (en) Process for the manufacture of organic compounds
EP1532985A4 (en) PROCESS FOR PREPARING A COMPOSITION WITH DELAYED DELAY
GB0221679D0 (en) Novel compounds
EP1559736A4 (en) PROCESS FOR PREPARING RESIN COMPOSITIONS
GB0210234D0 (en) Process for the manufacture of organic compounds
AU2003267565A8 (en) Process for the production of a fuel composition
AU2003273435A8 (en) Nitrile production from ethylenically unsaturated compounds
HUP0600231A2 (en) Novel process for the preparation of 2h-chromenes
GB0312966D0 (en) Process for the production of olefins
GB0304927D0 (en) Process for the production of tibolone
AU2003242867A8 (en) Process for the synthesis of mosapride
GB0511682D0 (en) Process for the separation of racemic mixtures
AU2003235739A8 (en) A process for improving the production rate of compounding mixers
PL374274A1 (en) Method for the production of cyclohexanol from benzole
GB0413738D0 (en) Novel organofluorine compounds
SG111997A1 (en) Improved process for the preparation of polyalkylphenoxyaminoalkanes