JPS539750A - Process for preparing diisocyanate diphenyl methane isomer adjusted content of chlorinated compound - Google Patents

Process for preparing diisocyanate diphenyl methane isomer adjusted content of chlorinated compound

Info

Publication number
JPS539750A
JPS539750A JP8111477A JP8111477A JPS539750A JP S539750 A JPS539750 A JP S539750A JP 8111477 A JP8111477 A JP 8111477A JP 8111477 A JP8111477 A JP 8111477A JP S539750 A JPS539750 A JP S539750A
Authority
JP
Japan
Prior art keywords
diphenyl methane
chlorinated compound
adjusted content
diisocyanate diphenyl
methane isomer
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.)
Pending
Application number
JP8111477A
Other languages
English (en)
Japanese (ja)
Inventor
Erento Giyunteru
Fuitsushieru Heruman
Fuitsushieru Peeteru
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 JPS539750A publication Critical patent/JPS539750A/ja
Pending 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP8111477A 1976-07-10 1977-07-08 Process for preparing diisocyanate diphenyl methane isomer adjusted content of chlorinated compound Pending JPS539750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762631168 DE2631168B2 (de) 1976-07-10 1976-07-10 Verfahren zur Herstellung von Diisocyanatodiphenylmethan-Isomeren mit einem eingestellten Gehalt an Chlorverbindungen

Publications (1)

Publication Number Publication Date
JPS539750A true JPS539750A (en) 1978-01-28

Family

ID=5982715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8111477A Pending JPS539750A (en) 1976-07-10 1977-07-08 Process for preparing diisocyanate diphenyl methane isomer adjusted content of chlorinated compound

Country Status (6)

Country Link
JP (1) JPS539750A (de)
BE (1) BE856617A (de)
DE (1) DE2631168B2 (de)
ES (1) ES460560A1 (de)
FR (1) FR2357532A1 (de)
GB (1) GB1570741A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102320A (en) * 1978-01-31 1979-08-11 Ricoh Kk Lens bonding and apparatus therefor
JPS54102321A (en) * 1978-01-31 1979-08-11 Ricoh Kk Removing bubbles in lens bonding
JPS54103415A (en) * 1978-01-31 1979-08-14 Ricoh Kk Lens bonding
JPH02311452A (ja) * 1989-05-26 1990-12-27 Daicel Chem Ind Ltd ジイソシアネート化合物
JP2004331667A (ja) * 2003-05-08 2004-11-25 Bayer Materialscience Ag 異性体ジイソシアナトジフェニルメタン混合物の蒸留方法
JP2005225879A (ja) * 2004-02-04 2005-08-25 Bayer Materialscience Ag 非常に純粋な２，４′−メチレンジフェニルジイソシアネートの製造方法
JP2006206593A (ja) * 2005-01-29 2006-08-10 Bayer Materialscience Ag ２，４′−ｍｄｉの製造方法
JP2014500878A (ja) * 2010-11-17 2014-01-16 ビーエーエスエフ ソシエタス・ヨーロピア 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
JP2014504274A (ja) * 2010-11-17 2014-02-20 ビーエーエスエフ ソシエタス・ヨーロピア 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
JP2015010183A (ja) * 2013-06-28 2015-01-19 旭化成ケミカルズ株式会社 ジイソシアネート組成物
JP2021506755A (ja) * 2017-12-14 2021-02-22 ズルツァー マネジメント アクチエンゲゼルシャフト 粗混合物から４，４’‐メチレンジフェニルジイソシアナートなどの異性体モノマーを精製するためのプラント及び方法
JP2025524128A (ja) * 2022-11-17 2025-07-25 万華化学集団股▲分▼有限公司 イソシアネート組成物、変性組成物、及びポリウレタンエラストマー

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935318A1 (de) * 1979-08-31 1981-03-26 Bayer Ag, 51373 Leverkusen Neue diisocyanate bzw. diisocyanatgemische der diphenylmethanreihe, verfahren zu ihrer herstellung, sowie ihre verwendung als aufbaukomponente bei der herstellung von polyurethankunststoffen nach dem isocyanat-polyadditionsverfahren
JP2875877B2 (ja) * 1990-10-23 1999-03-31 三井化学株式会社 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
DE19914291A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen Isocyanaten
DE19914292A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Verringerung des Chlorgehaltes von organischen Isocyanaten
DE102005026864A1 (de) 2005-06-10 2006-12-14 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
DE102005053065A1 (de) * 2005-11-04 2007-05-10 Basf Ag Verfahren zur Herstellung von Polyisocyanatgemischen
BR112013012255A2 (pt) 2010-11-17 2016-08-09 Basf Se processo para preparar di - isocianato de metileno difenila
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
WO2016120167A1 (de) 2015-01-30 2016-08-04 Basf Se Nebenproduktarme polyphenylenpolymethylenpolyisocyanate

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219678A (en) * 1963-02-28 1965-11-23 Olin Mathieson Process for reducing the hydrolyzable chlorine content of organic isocyanates
DE1805957A1 (de) * 1967-10-31 1969-06-26 Takeda Chemical Industries Ltd Verfahren zur Reinigung von Xylylendiisocyanat
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
US3853936A (en) * 1973-02-05 1974-12-10 Olin Corp Process for distillation of toluene diisocyanate
US3912600A (en) * 1974-05-09 1975-10-14 Upjohn Co Recovery of polymethylene polyphenyl polyisocyanate from a phoshenosed polyamine feed

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54102320A (en) * 1978-01-31 1979-08-11 Ricoh Kk Lens bonding and apparatus therefor
JPS54102321A (en) * 1978-01-31 1979-08-11 Ricoh Kk Removing bubbles in lens bonding
JPS54103415A (en) * 1978-01-31 1979-08-14 Ricoh Kk Lens bonding
JPH02311452A (ja) * 1989-05-26 1990-12-27 Daicel Chem Ind Ltd ジイソシアネート化合物
JP2004331667A (ja) * 2003-05-08 2004-11-25 Bayer Materialscience Ag 異性体ジイソシアナトジフェニルメタン混合物の蒸留方法
JP2005225879A (ja) * 2004-02-04 2005-08-25 Bayer Materialscience Ag 非常に純粋な２，４′−メチレンジフェニルジイソシアネートの製造方法
JP2006206593A (ja) * 2005-01-29 2006-08-10 Bayer Materialscience Ag ２，４′−ｍｄｉの製造方法
JP2014500878A (ja) * 2010-11-17 2014-01-16 ビーエーエスエフ ソシエタス・ヨーロピア 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
JP2014504274A (ja) * 2010-11-17 2014-02-20 ビーエーエスエフ ソシエタス・ヨーロピア 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
JP2015010183A (ja) * 2013-06-28 2015-01-19 旭化成ケミカルズ株式会社 ジイソシアネート組成物
JP2021506755A (ja) * 2017-12-14 2021-02-22 ズルツァー マネジメント アクチエンゲゼルシャフト 粗混合物から４，４’‐メチレンジフェニルジイソシアナートなどの異性体モノマーを精製するためのプラント及び方法
US11613518B2 (en) 2017-12-14 2023-03-28 Sulzer Management Ag Plant and method for purifying an isomeric monomer
JP2025524128A (ja) * 2022-11-17 2025-07-25 万華化学集団股▲分▼有限公司 イソシアネート組成物、変性組成物、及びポリウレタンエラストマー

Also Published As

Publication number Publication date
DE2631168B2 (de) 1979-03-08
FR2357532A1 (fr) 1978-02-03
FR2357532B1 (de) 1980-10-17
DE2631168A1 (de) 1978-01-12
ES460560A1 (es) 1978-05-16
BE856617A (fr) 1978-01-09
GB1570741A (en) 1980-07-09

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