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BR9300016A - Processo para o siolamento de isomeros de poliisocianato - Google Patents

Processo para o siolamento de isomeros de poliisocianato

Info

Publication number
BR9300016A
BR9300016A BR9300016A BR9300016A BR9300016A BR 9300016 A BR9300016 A BR 9300016A BR 9300016 A BR9300016 A BR 9300016A BR 9300016 A BR9300016 A BR 9300016A BR 9300016 A BR9300016 A BR 9300016A
Authority
BR
Brazil
Prior art keywords
polyisocianate
isomers
insulation
polyisocianate isomers
Prior art date
Application number
BR9300016A
Other languages
English (en)
Inventor
Wolfgang Dr Friederichs
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 BR9300016A publication Critical patent/BR9300016A/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
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR9300016A 1992-01-08 1993-01-06 Processo para o siolamento de isomeros de poliisocianato BR9300016A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4200236A DE4200236A1 (de) 1992-01-08 1992-01-08 Verfahren zur isolierung von polyisocyanat-isomeren aus polyisocyanatgemischen

Publications (1)

Publication Number Publication Date
BR9300016A true BR9300016A (pt) 1993-07-13

Family

ID=6449180

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9300016A BR9300016A (pt) 1992-01-08 1993-01-06 Processo para o siolamento de isomeros de poliisocianato

Country Status (6)

Country Link
US (1) US5300616A (pt)
EP (1) EP0550908A3 (pt)
JP (1) JPH05271178A (pt)
BR (1) BR9300016A (pt)
CA (1) CA2086651A1 (pt)
DE (1) DE4200236A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3737729B2 (ja) * 2001-09-26 2006-01-25 株式会社東芝 非水電解液電池および非水電解液
US20090222205A1 (en) * 2008-02-29 2009-09-03 Omega Engineering, Inc. Data logger with indicia surface
WO2020016117A1 (de) 2018-07-16 2020-01-23 Covestro Deutschland Ag Verfahren zur herstellung von oligomeren polyisocyanaten
WO2020016118A1 (de) 2018-07-16 2020-01-23 Covestro Deutschland Ag VERFAHREN ZUR HERSTELLUNG VON OLIGOMEREN POLYISOCYANATEN MIT ANSCHLIEßENDER FRAKTIONIERTER FLÜSSIG-FLÜSSIG-EXTRAKTION
CN114195974B (zh) * 2021-12-06 2022-10-18 季华实验室 一种聚氨酯预聚体及其制备方法、聚氨酯产品

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1417087A (en) * 1973-05-29 1975-12-10 Ici Ltd Polyisocyanates
JPS5346944A (en) * 1976-10-07 1978-04-27 Mitsui Toatsu Chem Inc Preparation of liquid 4,4-diisocyanatedicyclohexylmethane
US4246187A (en) * 1979-07-17 1981-01-20 E. I. Du Pont De Nemours And Company Separation of 2,4-tolylene diisocyanate from mixtures of 2,4- and 2,6-tolylene diisocyanate
DE3145010A1 (de) * 1981-11-12 1983-05-19 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 4,4'-diisocyanatodiphenylmethan
DE3220439A1 (de) * 1982-05-29 1983-12-01 Bayer Ag, 5090 Leverkusen Verfahren zur abtrennung von technisch reinem 2,4-diisocyanatotoluol oder von, einen erhoehten gehalt an 2,4-diisocyanatotoluol aufweisenden, isomerengemischen von, im wesentlichen aus 2,4- und 2,6-diisocyanatotoluol bestehenden, isomerengemischen
DE3915181A1 (de) * 1989-05-10 1990-11-15 Bayer Ag Verfahren zur herstellung von polyisocyanaten

Also Published As

Publication number Publication date
EP0550908A2 (de) 1993-07-14
EP0550908A3 (en) 1993-11-03
CA2086651A1 (en) 1993-07-08
JPH05271178A (ja) 1993-10-19
US5300616A (en) 1994-04-05
DE4200236A1 (de) 1993-07-15

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Legal Events

Date Code Title Description
EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FA8 Dismissal: dismissal - article 36, par. 1 of industrial property law