BR8404026A - Processo para purificacao de poliisocianatos brutos e os poliisocianatos assim purificados - Google Patents

Processo para purificacao de poliisocianatos brutos e os poliisocianatos assim purificados

Info

Publication number
BR8404026A
BR8404026A BR8404026A BR8404026A BR8404026A BR 8404026 A BR8404026 A BR 8404026A BR 8404026 A BR8404026 A BR 8404026A BR 8404026 A BR8404026 A BR 8404026A BR 8404026 A BR8404026 A BR 8404026A
Authority
BR
Brazil
Prior art keywords
polyisocianates
crude
purified
purification
purified polyisocianates
Prior art date
Application number
BR8404026A
Other languages
English (en)
Inventor
Berthold Keggenhoff
Franz-Moritz Richter
Gunther Ellendt
Marcel Petinaux
Original Assignee
Bayer 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
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR8404026A publication Critical patent/BR8404026A/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
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
BR8404026A 1983-08-11 1984-08-10 Processo para purificacao de poliisocianatos brutos e os poliisocianatos assim purificados BR8404026A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833329124 DE3329124A1 (de) 1983-08-11 1983-08-11 Verfahren zur reinigung von polyisocyanaten und die so gereinigten polyisocyanate

Publications (1)

Publication Number Publication Date
BR8404026A true BR8404026A (pt) 1985-07-16

Family

ID=6206376

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8404026A BR8404026A (pt) 1983-08-11 1984-08-10 Processo para purificacao de poliisocianatos brutos e os poliisocianatos assim purificados

Country Status (7)

Country Link
US (1) US4774357A (pt)
EP (1) EP0133538B1 (pt)
JP (1) JPS6058955A (pt)
BR (1) BR8404026A (pt)
CA (1) CA1243332A (pt)
DE (2) DE3329124A1 (pt)
ES (1) ES8505388A1 (pt)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185384A (en) * 1991-01-28 1993-02-09 The Dow Chemical Company Method for reducing hydrolyzable chloride in toluene diisocyanate
US5216042A (en) * 1991-07-10 1993-06-01 The Dow Chemical Company Process for preparing viscosity-stabilized reactive toluene diisocyanate distillation residues and blends thereof
DE4111212A1 (de) * 1991-04-06 1992-10-08 Bayer Ag Verfahren zur konditionierung und/oder reinigung von organischen isocyanaten
DE4208359A1 (de) * 1992-03-16 1993-09-23 Bayer Ag Verfahren zur herstellung von isocyanaten oder isocyanatgemischen und deren verwendung zur herstellung von polyurethanschaumstoffen
US5364958A (en) * 1992-06-23 1994-11-15 Mitsui Toatsu Chemicals, Incorporated Process for the production of methylene-crosslinked polyphenylene polyisocyanate
ES2123171T3 (es) * 1994-04-07 1999-01-01 Bayer Ag Procedimiento para la fabricacion de isocianatos o mezclas de isocianatos.
DE19711447A1 (de) * 1997-03-19 1998-09-24 Basf Ag Verfahren zur Herstellung von Isocyanaten mit heller Farbe
US5962728A (en) * 1997-10-31 1999-10-05 Arco Chemical Technology, L.P. Isocyanate residue purification
DE19928741A1 (de) 1999-06-23 2000-12-28 Basf Ag Helle Isocyanate, Verfahren zu deren Herstellung und deren Verwendung
DE102005026864A1 (de) * 2005-06-10 2006-12-14 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
EP1976898B1 (de) * 2006-01-13 2019-03-13 Basf Se Isocyanathaltige zubereitungen
DE102006002157A1 (de) * 2006-01-17 2007-07-19 Bayer Materialscience Ag Verfahren zur Herstellung heller Isocyanate
KR101502441B1 (ko) * 2006-04-12 2015-03-17 바스프 에스이 폴리우레탄의 제조 방법
ES2400332T3 (es) 2008-11-19 2013-04-09 Basf Se Método para la producción de un isocianato
ES2608486T5 (es) 2008-11-26 2020-05-19 Huntsman Int Llc Procedimiento para fabricar isocianatos
KR20120050444A (ko) 2009-07-16 2012-05-18 바스프 에스이 디페닐메탄 디이소시아네이트 계열의 명색 이소시아네이트의 제조 방법
US8907124B2 (en) 2010-11-17 2014-12-09 Basf Se Process for preparing methylenedi(phenyl isocyanate)
WO2012065927A1 (de) 2010-11-17 2012-05-24 Basf Se Verfahren zur herstellung von methylendiphenyldiisocyanat
HUE027504T2 (en) 2011-10-21 2016-10-28 Covestro Deutschland Ag Process for the preparation of light-colored polyisocyanates
KR102334680B1 (ko) 2019-10-31 2021-12-07 주식회사 잉크테크 유기 형광 안료 분산액 및 유기 형광 안료 분산액의 제조방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144474A (en) * 1964-08-11 Purification process for isocyanates
GB887874A (en) * 1959-06-12 1962-01-24 Ici Ltd Purification process for isocyanates
NL291785A (pt) * 1962-09-12
US3479384A (en) * 1964-12-28 1969-11-18 Mobay Chemical Corp Crude polyisocyanate compositions and preparation thereof
US3816496A (en) * 1972-01-03 1974-06-11 Olin Corp Solvent extraction and distillation technique for purification of organic isocyanates
US3987075A (en) * 1972-01-03 1976-10-19 Olin Corporation Solvent extraction and distillation technique for purification of organic isocyanates
GB1517162A (en) * 1974-07-24 1978-07-12 Shell Int Research Purification of diisocyanate
DD127328A1 (pt) * 1976-07-27 1977-09-21

Also Published As

Publication number Publication date
JPS6058955A (ja) 1985-04-05
EP0133538A2 (de) 1985-02-27
DE3329124A1 (de) 1985-02-28
CA1243332A (en) 1988-10-18
ES535092A0 (es) 1985-05-16
EP0133538B1 (de) 1990-03-14
ES8505388A1 (es) 1985-05-16
DE3481609D1 (de) 1990-04-19
US4774357A (en) 1988-09-27
EP0133538A3 (en) 1987-12-16

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Legal Events

Date Code Title Description
MM Lapse due to non-payment of fees (art. 50)
B15K Others concerning applications: alteration of classification

Ipc: C07C 263/20 (2006.01), C07C 263/18 (2006.0