BE877433A - Werkwijze ter vervaardiging van 4,4'-alkylideendifenyldiisocyanaat - Google Patents

Werkwijze ter vervaardiging van 4,4'-alkylideendifenyldiisocyanaat

Info

Publication number
BE877433A
BE877433A BE1/9451A BE1009451A BE877433A BE 877433 A BE877433 A BE 877433A BE 1/9451 A BE1/9451 A BE 1/9451A BE 1009451 A BE1009451 A BE 1009451A BE 877433 A BE877433 A BE 877433A
Authority
BE
Belgium
Prior art keywords
alkylide
manufacturing
diphenyl diisocyanate
diisocyanate
diphenyl
Prior art date
Application number
BE1/9451A
Other languages
English (en)
Inventor
F Mango
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Publication of BE877433A publication Critical patent/BE877433A/nl

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/12—Derivatives of isocyanic acid having isocyanate groups bound to carbon atoms of six-membered aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE1/9451A 1978-07-10 1979-07-03 Werkwijze ter vervaardiging van 4,4'-alkylideendifenyldiisocyanaat BE877433A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/922,903 US4163019A (en) 1978-07-10 1978-07-10 Production of 4,4'-alkylidene diphenyl diisocyanate

Publications (1)

Publication Number Publication Date
BE877433A true BE877433A (nl) 1980-01-03

Family

ID=25447752

Family Applications (1)

Application Number Title Priority Date Filing Date
BE1/9451A BE877433A (nl) 1978-07-10 1979-07-03 Werkwijze ter vervaardiging van 4,4'-alkylideendifenyldiisocyanaat

Country Status (3)

Country Link
US (1) US4163019A (nl)
BE (1) BE877433A (nl)
DE (1) DE2927714A1 (nl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904917A1 (de) * 1979-02-09 1980-08-21 Basf Ag Verfahren zur herstellung von methylenbis-(4-phenylcarbaminsaeureester)
JPS5612357A (en) * 1979-07-09 1981-02-06 Mitsui Toatsu Chem Inc Production of polymethylenepolyphenylpolycarbamate
DE2931554A1 (de) * 1979-08-03 1981-02-26 Basf Ag Verfahren zur herstellung von methylen-bis-phenyl-carbaminsaeureestern und polymethylen-polyphenylcarbaminsaeureestern
CA1150293A (en) * 1979-10-01 1983-07-19 Keisuke Wada Process for the production of methylenedicarbanilates
JPS5679657A (en) * 1979-12-04 1981-06-30 Mitsui Toatsu Chem Inc Novel preparation of polyisocyanate
DE3013907A1 (de) * 1980-04-11 1981-10-22 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von methylen-bis-phenylcarbaminsaeureestern und polymethylen-polyphenylcarbamidsaeureestern
US4303794A (en) * 1980-12-22 1981-12-01 The Dow Chemical Company Separation and recovery of 4,4'-methylene dimethyl diphenyldicarbamate
US4487713A (en) * 1981-06-26 1984-12-11 Exxon Research & Engineering Co. Production of isocyanates from esters of aromatic carbamic acids (urethanes)
DE10211021A1 (de) * 2002-03-13 2003-09-25 Bayer Ag Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059021A (en) * 1960-02-12 1962-10-16 Monsanto Chemicals 1, 1, 1-trichloro-2, 2-bis[(carboalkoxy-amino) aryl] ethane
NL134193C (nl) * 1960-10-07
US3243448A (en) * 1962-08-24 1966-03-29 Air Prod & Chem Aliphatic isocyanate preparation
DE1207378B (de) * 1963-02-06 1965-12-23 Bayer Ag Verfahren zur Herstellung von organischen Monoisocyanaten
US3719699A (en) * 1970-12-31 1973-03-06 Shell Oil Co Process for the production of polyisocyanates

Also Published As

Publication number Publication date
US4163019A (en) 1979-07-31
DE2927714C2 (nl) 1988-04-28
DE2927714A1 (de) 1980-01-24

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

Effective date: 19980731