BE784245A - Procede de preparation de mono-et polyisocyanates organiques a partir d'urees trisubstituees - Google Patents

Procede de preparation de mono-et polyisocyanates organiques a partir d'urees trisubstituees

Info

Publication number
BE784245A
BE784245A BE784245A BE784245A BE784245A BE 784245 A BE784245 A BE 784245A BE 784245 A BE784245 A BE 784245A BE 784245 A BE784245 A BE 784245A BE 784245 A BE784245 A BE 784245A
Authority
BE
Belgium
Prior art keywords
polyisocyanates
preparation
organic mono
trisubstituted urea
trisubstituted
Prior art date
Application number
BE784245A
Other languages
English (en)
French (fr)
Inventor
C J Hearsey
Original Assignee
Quimco Gmbh
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 Quimco Gmbh filed Critical Quimco Gmbh
Publication of BE784245A publication Critical patent/BE784245A/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00Preparation of derivatives of isocyanic acid
    • C07C263/06Preparation of derivatives of isocyanic acid from or via ureas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE784245A 1971-06-01 1972-05-31 Procede de preparation de mono-et polyisocyanates organiques a partir d'urees trisubstituees BE784245A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1831471A GB1359032A (en) 1971-06-01 1971-06-01 Process for preparing organic mono-and polyisocyanates

Publications (1)

Publication Number Publication Date
BE784245A true BE784245A (fr) 1972-09-13

Family

ID=10110366

Family Applications (1)

Application Number Title Priority Date Filing Date
BE784245A BE784245A (fr) 1971-06-01 1972-05-31 Procede de preparation de mono-et polyisocyanates organiques a partir d'urees trisubstituees

Country Status (15)

Country Link
US (1) US3898259A (ja)
JP (1) JPS565221B1 (ja)
BE (1) BE784245A (ja)
BR (1) BR7203496D0 (ja)
CH (1) CH568278A5 (ja)
DD (1) DD99361A5 (ja)
DE (1) DE2225365B2 (ja)
ES (1) ES403375A1 (ja)
FR (1) FR2139577A5 (ja)
GB (1) GB1359032A (ja)
IL (1) IL39578A0 (ja)
IT (1) IT956102B (ja)
NL (1) NL7207352A (ja)
SU (1) SU436489A3 (ja)
ZA (1) ZA723716B (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746963A1 (de) * 1977-10-19 1979-04-26 Bayer Ag Verfahren zur herstellung von isocyanaten
US4141913A (en) * 1978-01-23 1979-02-27 American Carbonyl, Inc. Method of generating lower alkyl and cycloalkyl isocyanates
DE2837341C2 (de) * 1978-08-26 1983-02-17 Akzo Gmbh, 5600 Wuppertal Verfahren zur Herstellung von organischen Mono- und Polyisocyanaten durch thermische Spaltung der Hydrochloride trisubstituierter Harnstoffe
US4871871A (en) * 1988-11-03 1989-10-03 Arco Chemical Technology, Inc. Process for the preparation of aromatic mono- and polyisocyanates
US4873364A (en) * 1988-12-09 1989-10-10 Arco Chemical Technology, Inc. Process for the preparation of methylene diphenylene diisocyanates and polymethylene polyphenylene poly (diisocyanates)
US4883908A (en) * 1989-02-02 1989-11-28 Arco Chemical Technology, Inc. Process for the preparation of aromatic isocyanates from dialkyl ureas using an organic sulfonic acid promoter
US4978779A (en) * 1989-03-09 1990-12-18 Arco Chemical Technology, Inc. Preparation of methylene diphenylene diisocyanates and polymethylene polyphenylene poly (isocyanates) using an organic sulfonic acid promoter
JPH03173859A (ja) * 1989-04-06 1991-07-29 Arco Chem Technol Inc 芳香族アミンからの芳香族モノーおよびポリイソシアネートの製造方法
EP0402020A1 (en) * 1989-06-05 1990-12-12 Arco Chemical Technology, Inc. An integrated process for the preparation of methylene diphenylene diisocyanates and polymethylene polyphenylene poly (isocyanates) from diamines and polyamines
US5227483A (en) * 1991-12-30 1993-07-13 Arco Chemical Technology, L.P. Process for recovery of amines and volatile acids from amine salts
DE4233534A1 (de) * 1992-10-06 1994-04-07 Chemie Linz Deutschland Verfahren zur Herstellung von Isocyanaten durch Zersetzen von N,N,N'-trisubstituierten Harnstoffen
WO2012163894A2 (de) * 2011-05-30 2012-12-06 Basf Se Verfahren zur herstellung von polyisocyanaten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773086A (en) * 1953-01-19 1956-12-04 Monsanto Chemicals Production of isocyanates from substituted ureas

Also Published As

Publication number Publication date
BR7203496D0 (pt) 1973-05-10
SU436489A3 (ru) 1974-07-15
IT956102B (it) 1973-10-10
DD99361A5 (ja) 1973-08-05
ES403375A1 (es) 1975-04-16
GB1359032A (en) 1974-07-03
DE2225365A1 (de) 1973-01-25
IL39578A0 (en) 1972-07-26
FR2139577A5 (ja) 1973-01-05
CH568278A5 (ja) 1975-10-31
JPS565221B1 (ja) 1981-02-04
DE2225365B2 (de) 1980-11-13
ZA723716B (en) 1973-03-28
NL7207352A (ja) 1972-12-05
US3898259A (en) 1975-08-05

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