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ES535092A0 - Procedimiento para la purificacion de poliisocianatos en bruto - Google Patents

Procedimiento para la purificacion de poliisocianatos en bruto

Info

Publication number
ES535092A0
ES535092A0 ES535092A ES535092A ES535092A0 ES 535092 A0 ES535092 A0 ES 535092A0 ES 535092 A ES535092 A ES 535092A ES 535092 A ES535092 A ES 535092A ES 535092 A0 ES535092 A0 ES 535092A0
Authority
ES
Spain
Prior art keywords
purification
procedure
polyisocyanates
rough
rough 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.)
Granted
Application number
ES535092A
Other languages
English (en)
Other versions
ES8505388A1 (es
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.)
Bayer AG
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 ES8505388A1 publication Critical patent/ES8505388A1/es
Publication of ES535092A0 publication Critical patent/ES535092A0/es
Granted 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
    • C07C263/18—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)
ES535092A 1983-08-11 1984-08-10 Procedimiento para la purificacion de poliisocianatos en bruto Granted ES535092A0 (es)

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 (2)

Publication Number Publication Date
ES8505388A1 ES8505388A1 (es) 1985-05-16
ES535092A0 true ES535092A0 (es) 1985-05-16

Family

ID=6206376

Family Applications (1)

Application Number Title Priority Date Filing Date
ES535092A Granted ES535092A0 (es) 1983-08-11 1984-08-10 Procedimiento para la purificacion de poliisocianatos en bruto

Country Status (7)

Country Link
US (1) US4774357A (es)
EP (1) EP0133538B1 (es)
JP (1) JPS6058955A (es)
BR (1) BR8404026A (es)
CA (1) CA1243332A (es)
DE (2) DE3329124A1 (es)
ES (1) ES535092A0 (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5185384A (en) * 1991-01-28 1993-02-09 The Dow Chemical Company Method for reducing hydrolyzable chloride in toluene diisocyanate
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
KR970001071B1 (ko) * 1992-06-23 1997-01-25 미쓰이도오아쓰가가꾸 가부시끼가이샤 메틸렌 가교 폴리페닐렌 폴리이소시아네이트의 제조방법
DE59503894D1 (de) * 1994-04-07 1998-11-19 Bayer Ag Verfahren zur Herstellung von Isocyanaten oder Isocyanatgemischen
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
US8592497B2 (en) * 2006-04-12 2013-11-26 Basf Aktiengesellschaft Process for preparing polyurethanes
US8853443B2 (en) 2008-11-19 2014-10-07 Basf Se Process for preparing an isocyanate
US8802890B2 (en) 2008-11-26 2014-08-12 Huntsman International Llc Process for manufacturing isocyanates
US8841480B2 (en) 2009-07-16 2014-09-23 Basf Se Process for the preparation of light-colored iocyanates of a diphenylmethanediisocyanate series
US8907124B2 (en) 2010-11-17 2014-12-09 Basf Se Process for preparing methylenedi(phenyl isocyanate)
BR112013012255A2 (pt) 2010-11-17 2016-08-09 Basf Se processo para preparar di - isocianato de metileno difenila
WO2013057165A1 (de) 2011-10-21 2013-04-25 Bayer Intellectual Property Gmbh Verfahren zur herstellung farbheller polyisocyanate
KR102334680B1 (ko) 2019-10-31 2021-12-07 주식회사 잉크테크 유기 형광 안료 분산액 및 유기 형광 안료 분산액의 제조방법
JP2022170318A (ja) * 2021-04-28 2022-11-10 旭化成株式会社 イソシアネートの製造方法

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 (es) * 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 (es) * 1976-07-27 1977-09-21

Also Published As

Publication number Publication date
ES8505388A1 (es) 1985-05-16
BR8404026A (pt) 1985-07-16
DE3329124A1 (de) 1985-02-28
EP0133538A3 (en) 1987-12-16
EP0133538B1 (de) 1990-03-14
DE3481609D1 (de) 1990-04-19
EP0133538A2 (de) 1985-02-27
US4774357A (en) 1988-09-27
JPS6058955A (ja) 1985-04-05
CA1243332A (en) 1988-10-18

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970612