BE878409A - Procede de preparation de mono- et de polyisocyanates organiques par scission thermique de chlorhydrates d'urees trisubstituees - Google Patents

Procede de preparation de mono- et de polyisocyanates organiques par scission thermique de chlorhydrates d'urees trisubstituees

Info

Publication number
BE878409A
BE878409A BE0/196864A BE196864A BE878409A BE 878409 A BE878409 A BE 878409A BE 0/196864 A BE0/196864 A BE 0/196864A BE 196864 A BE196864 A BE 196864A BE 878409 A BE878409 A BE 878409A
Authority
BE
Belgium
Prior art keywords
chlorhydrates
polyisocyanates
preparation
organic mono
trisubstituted urea
Prior art date
Application number
BE0/196864A
Other languages
English (en)
French (fr)
Original Assignee
Akzo Nv
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 Akzo Nv filed Critical Akzo Nv
Publication of BE878409A publication Critical patent/BE878409A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/06—Preparation of derivatives of isocyanic acid from or via ureas
    • 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)
BE0/196864A 1978-08-26 1979-08-24 Procede de preparation de mono- et de polyisocyanates organiques par scission thermique de chlorhydrates d'urees trisubstituees BE878409A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2837341A DE2837341C2 (de) 1978-08-26 1978-08-26 Verfahren zur Herstellung von organischen Mono- und Polyisocyanaten durch thermische Spaltung der Hydrochloride trisubstituierter Harnstoffe

Publications (1)

Publication Number Publication Date
BE878409A true BE878409A (fr) 1979-12-17

Family

ID=6047992

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/196864A BE878409A (fr) 1978-08-26 1979-08-24 Procede de preparation de mono- et de polyisocyanates organiques par scission thermique de chlorhydrates d'urees trisubstituees

Country Status (16)

Country Link
US (1) US4223145A (xx)
JP (1) JPS5533480A (xx)
AT (1) AT362773B (xx)
AU (1) AU523314B2 (xx)
BE (1) BE878409A (xx)
BR (1) BR7905159A (xx)
CA (1) CA1116621A (xx)
DD (1) DD145632A5 (xx)
DE (1) DE2837341C2 (xx)
ES (1) ES483389A1 (xx)
FR (1) FR2434144A1 (xx)
GB (1) GB2029413B (xx)
IT (1) IT1119804B (xx)
NL (1) NL7906291A (xx)
SE (1) SE7907068L (xx)
ZA (1) ZA793327B (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58179292A (ja) * 1982-04-13 1983-10-20 Nippon Synthetic Chem Ind Co Ltd:The 炭化水素系液状混合物の安定化法
GB8300016D0 (en) * 1983-01-04 1983-02-09 Exxon Research Engineering Co Middle distillate compositions
GB8618397D0 (en) * 1986-07-29 1986-09-03 Exxon Chemical Patents Inc Liquid fuel compositions
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
DE10021742A1 (de) * 2000-05-04 2001-11-08 Bayer Ag Verfahren zur Herstellung organischer Monoisocyanate
EP2042485A1 (en) * 2007-09-28 2009-04-01 Huntsman International Llc Process for fractionating a mixture of polyisocyanates
WO2012176631A1 (ja) * 2011-06-24 2012-12-27 昭和電工株式会社 エチレン性不飽和基含有イソシアネート化合物の製造方法
CN103351312A (zh) * 2013-07-01 2013-10-16 太仓市恒益医药化工原料厂 一种用于苯二异氰酸酯的制备工艺

Family Cites Families (5)

* 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
FR1473821A (fr) * 1963-07-05 1967-03-24 Carbochimique Et Inst Francais Nouveaux procédé de fabrication d'esters isocyaniques
GB1359032A (en) * 1971-06-01 1974-07-03 Quimco Gmbh Process for preparing organic mono-and polyisocyanates
JPS4964421A (xx) * 1972-10-20 1974-06-21
US3936484A (en) * 1974-09-25 1976-02-03 Atlantic Richfield Company Production of isocyanates from substituted ureas

Also Published As

Publication number Publication date
DD145632A5 (de) 1980-12-24
AU523314B2 (en) 1982-07-22
JPS5533480A (en) 1980-03-08
SE7907068L (sv) 1980-02-27
DE2837341C2 (de) 1983-02-17
DE2837341A1 (de) 1980-03-20
AT362773B (de) 1981-06-10
IT1119804B (it) 1986-03-10
FR2434144B1 (xx) 1984-10-05
ES483389A1 (es) 1980-04-16
NL7906291A (nl) 1980-02-28
ZA793327B (en) 1980-07-30
GB2029413B (en) 1982-11-03
GB2029413A (en) 1980-03-19
JPS6320218B2 (xx) 1988-04-26
CA1116621A (en) 1982-01-19
FR2434144A1 (fr) 1980-03-21
BR7905159A (pt) 1980-05-06
AU4867779A (en) 1980-03-06
US4223145A (en) 1980-09-16
ATA481279A (de) 1980-11-15
IT7949869A0 (it) 1979-07-26

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