DE69130101D1 - Verfahren zur Fraktionierung einer Reaktionsmischung, die methylenverbrückte Polyphenylenpolyisocyanate enthält - Google Patents

Verfahren zur Fraktionierung einer Reaktionsmischung, die methylenverbrückte Polyphenylenpolyisocyanate enthält

Info

Publication number
DE69130101D1
DE69130101D1 DE69130101T DE69130101T DE69130101D1 DE 69130101 D1 DE69130101 D1 DE 69130101D1 DE 69130101 T DE69130101 T DE 69130101T DE 69130101 T DE69130101 T DE 69130101T DE 69130101 D1 DE69130101 D1 DE 69130101D1
Authority
DE
Germany
Prior art keywords
fractionation
reaction mixture
mixture containing
containing methylene
polyphenylene polyisocyanates
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69130101T
Other languages
English (en)
Other versions
DE69130101T2 (de
Inventor
Noritoshi Ishida
Zunzi Tashima
Mitsunori Shimamatsu
Kazunari Nitta
Takashi Nagou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Chemicals Inc
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 Mitsui Chemicals Inc filed Critical Mitsui Chemicals Inc
Application granted granted Critical
Publication of DE69130101D1 publication Critical patent/DE69130101D1/de
Publication of DE69130101T2 publication Critical patent/DE69130101T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
DE69130101T 1990-10-23 1991-10-16 Verfahren zur Fraktionierung einer Reaktionsmischung, die methylenverbrückte Polyphenylenpolyisocyanate enthält Expired - Fee Related DE69130101T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2283515A JP2875877B2 (ja) 1990-10-23 1990-10-23 メチレン架橋ポリフェニレンポリイソシアネートの製造方法

Publications (2)

Publication Number Publication Date
DE69130101D1 true DE69130101D1 (de) 1998-10-08
DE69130101T2 DE69130101T2 (de) 1999-02-18

Family

ID=17666538

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69130101T Expired - Fee Related DE69130101T2 (de) 1990-10-23 1991-10-16 Verfahren zur Fraktionierung einer Reaktionsmischung, die methylenverbrückte Polyphenylenpolyisocyanate enthält

Country Status (8)

Country Link
US (1) US5179227A (de)
EP (1) EP0482490B1 (de)
JP (1) JP2875877B2 (de)
KR (1) KR950008204B1 (de)
CN (1) CN1045003C (de)
BR (1) BR9104556A (de)
DE (1) DE69130101T2 (de)
HU (1) HU208984B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179222A (en) * 1991-09-13 1993-01-12 International Flavors & Fragrances Inc. Process for preparing phenyl butyronitriles and perfumery use of 2,2-dimethyl-4-phenyl valeronitrile
KR970001071B1 (ko) * 1992-06-23 1997-01-25 미쓰이도오아쓰가가꾸 가부시끼가이샤 메틸렌 가교 폴리페닐렌 폴리이소시아네이트의 제조방법
DE10333929A1 (de) * 2003-07-25 2005-02-24 Bayer Materialscience Ag Herstellung von Mischungen von Di- und Polyisocyanaten der Diphenylmethanreihe mit hohen Gehalten an 4,4'-Methylendiphenyldiisocyanat und 2,4'-Methylendiphenyldiisocyanat
DE102004005319A1 (de) * 2004-02-04 2005-08-25 Bayer Materialscience Ag Verfahren zur Herstellung von hochreinem 2,4'-Methylendiphenyldiisocyanat
BRPI0519528A2 (pt) * 2004-12-22 2009-02-17 Lanxess Deutschand Gmbh processo para reduÇço do teor de cloro hodrolisÁvel em isocianatos orgÂnicos ou em misturas de isocianatos orgÂnicos, emprego de isocianatos
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
EP2042485A1 (de) * 2007-09-28 2009-04-01 Huntsman International Llc Verfahren zur Fraktionierung einer Mischung von Polyisocyanaten
JP2010120870A (ja) * 2008-11-18 2010-06-03 Nippon Polyurethane Ind Co Ltd メチレン架橋ポリフェニルポリイソシアネートの製造方法
CN104326941B (zh) * 2014-11-05 2016-07-13 华玉叶 一种浓缩粗多异氰酸酯的方法
KR102618935B1 (ko) 2015-01-30 2023-12-27 바스프 에스이 낮은 부산물 함량의 폴리페닐렌 폴리메틸렌 폴리이소시아네이트
CN111069203B (zh) * 2019-12-06 2021-07-23 万华化学集团股份有限公司 一种光气化法异氰酸酯生产装置中酸性固体物的安全清理方法
US20240034831A1 (en) * 2020-09-18 2024-02-01 Keun Sik Kim Process of preparing isocyanate compounds comprising non-chlorinated derivative and composition thereof
CN115650880B (zh) * 2022-11-03 2024-08-20 万华化学（宁波）有限公司 一种过保质期mdi的回收处理方法及由其制备碳化二亚胺改性异氰酸酯的方法和产品

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014914A (en) * 1970-01-12 1977-03-29 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Manufacture of 4,4'-diphenylmethane diisocyanate and a mixture of diisocyanates and polyisocyanates
GB1398975A (en) * 1971-08-16 1975-06-25 Ici Ltd Heat treatment and distillation of methylene bridged polyphenyl polyisocyanates
GB1384065A (en) * 1971-11-30 1975-02-19 Ici Ltd Process for the purification of organic isocyanates
GB1417087A (en) * 1973-05-29 1975-12-10 Ici Ltd Polyisocyanates
US3925437A (en) * 1974-07-18 1975-12-09 Jefferson Chem Co Inc Reduction of acidity of organic polymeric isocyanates
DE2624285C2 (de) * 1976-05-31 1987-03-12 Basf Ag, 6700 Ludwigshafen Verfahren zur kontinuierlichen Herstellung von organischen Isocyanaten
DE2631168B2 (de) * 1976-07-10 1979-03-08 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Diisocyanatodiphenylmethan-Isomeren mit einem eingestellten Gehalt an Chlorverbindungen
DE2844591A1 (de) * 1978-10-13 1980-04-24 Texaco Development Corp Verfahren zur reinigung und verminderung der aziditaet von polymethylen-polyphenylpolyisocyanat-gemischen
JPS5826337A (ja) * 1981-07-16 1983-02-16 Clarion Co Ltd 保持プランジヤ−機構
DE3145010A1 (de) * 1981-11-12 1983-05-19 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 4,4'-diisocyanatodiphenylmethan
DD257827A1 (de) * 1987-02-20 1988-06-29 Schwarzheide Synthesewerk Veb Verfahren zur gewinnung von isocyanatkomponenten aus verfahrensprodukten der toluylendiisocyanatherstellung
DE3714439A1 (de) * 1987-04-30 1988-11-10 Bayer Ag Verfahren zur herstellung von (cyclo)aliphatischen diisocyanaten

Also Published As

Publication number Publication date
BR9104556A (pt) 1992-06-09
HUT60305A (en) 1992-08-28
JPH04159259A (ja) 1992-06-02
CN1060836A (zh) 1992-05-06
CN1045003C (zh) 1999-09-08
US5179227A (en) 1993-01-12
JP2875877B2 (ja) 1999-03-31
EP0482490A2 (de) 1992-04-29
KR920008098A (ko) 1992-05-27
EP0482490B1 (de) 1998-09-02
HU913325D0 (en) 1992-01-28
KR950008204B1 (ko) 1995-07-26
DE69130101T2 (de) 1999-02-18
HU208984B (en) 1994-02-28
EP0482490A3 (en) 1993-03-31

Similar Documents

Publication Publication Date Title
DE59009065D1 (de) Verfahren zur Herstellung einer Polypropylen-Formmasse.
DE69026671D1 (de) Verfahren zur Herstellung von Propylen aus höheren Kohlenwasserstoffen
DE59010394D1 (de) Verfahren zur Herstellung einer Polypropylen-Formmasse
DE59004931D1 (de) Verfahren zur Herstellung intumeszenzfähiger Formteile.
IT8267913A0 (it) Procedimento ed apparecchiatura per la produzione di articoli stampati a partire da composti versabili
DE69022540D1 (de) Verfahren zur 1,2 Dehydrogenierung der Azasteroiden.
DE69006874D1 (de) Verfahren zur Herstellung von Schichtmetallen.
DE69130101D1 (de) Verfahren zur Fraktionierung einer Reaktionsmischung, die methylenverbrückte Polyphenylenpolyisocyanate enthält
DE69223470D1 (de) Verfahren zur Herstellung von amorphen, metallischen Werkstoffe
DE3788269D1 (de) Verfahren zur Herstellung einer Mikrokanalplatte.
ATE39249T1 (de) Verfahren zur herstellung von polyisocyanatopolyisocyanuraten durch katalytische cyclotrimerisierung von polyisocyanaten.
DE69637268D1 (de) Verfahren zur Herstellung von tris-(Hydroxyphenol)-Verbindungen
DE69127237D1 (de) Verfahren zur Herstellung einer Stoffverbindung
DE59007250D1 (de) Verfahren zur Herstellung hochtemperaturbeständiger Schaum- stoffe.
GB2192182B (en) Process for the production of aldehydes
DE3460487D1 (en) Process for the production of aromatic aldehydes
DE69313936D1 (de) Verfahren zur Herstellung von Nickelhydroxyd
DE69005364D1 (de) Verfahren zur Herstellung einer Zweikomponenten-Membran als Deckschicht.
ZA827091B (en) Process for the production of hydrocarbons
DE69011719D1 (de) Verfahren zur Synthese von Acylamino-organosilicium-Verbindungen.
DE69023532D1 (de) Verfahren zur Synthese von Acylamino-Organosilicium-Verbindungen.
DE3263412D1 (en) Process for the production of olefins from methanol-dimethyl ether
GB2102022B (en) Process for the production of hydrocarbons
DE3260373D1 (en) Process for the production of cement
DE69012279D1 (de) Verfahren zur Herstellung ungesättigter Verbindungen.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee