GB1208862A - Manufacture of organic isocyanates - Google Patents

Manufacture of organic isocyanates

Info

Publication number
GB1208862A
GB1208862A GB5434366A GB5434366A GB1208862A GB 1208862 A GB1208862 A GB 1208862A GB 5434366 A GB5434366 A GB 5434366A GB 5434366 A GB5434366 A GB 5434366A GB 1208862 A GB1208862 A GB 1208862A
Authority
GB
United Kingdom
Prior art keywords
isocyanates
organic
organic isocyanates
manufacture
dec
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.)
Expired
Application number
GB5434366A
Inventor
Edward George Gazzard
James Nairn Greenshields
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB5434366A priority Critical patent/GB1208862A/en
Publication of GB1208862A publication Critical patent/GB1208862A/en
Expired 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
    • C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Paper (AREA)

Abstract

1,208,862. Manufacture of organic isocyanates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 1 Dec., 1967 [5 Dec., 1966], No. 54343/66. Heading C2C. Organic isocyanates are prepared from the corresponding carbamyl chloride by contacting a solution or a suspension of the carbamyl chloride in an inert water-immiscible organic solvent with an aqueous solution or suspension of an acid acceptor, which include inorganic and organic bases such as sodium hydroxide, separating the liquid non-aqueous phase and recovering the isocyanate therefrom. Organic isocyanates which can be prepared from this method include both mono-isocyanates and polyisocyanates of the aliphatic, cycloaliphatic aromatic and heterocyclic series and also those of the alkaryl or aralkyl series which may be substituted by chlorine.
GB5434366A 1966-12-05 1966-12-05 Manufacture of organic isocyanates Expired GB1208862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5434366A GB1208862A (en) 1966-12-05 1966-12-05 Manufacture of organic isocyanates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5434366A GB1208862A (en) 1966-12-05 1966-12-05 Manufacture of organic isocyanates

Publications (1)

Publication Number Publication Date
GB1208862A true GB1208862A (en) 1970-10-14

Family

ID=10470694

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5434366A Expired GB1208862A (en) 1966-12-05 1966-12-05 Manufacture of organic isocyanates

Country Status (1)

Country Link
GB (1) GB1208862A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2174940A1 (en) * 1972-03-03 1973-10-19 Basf Ag
FR2360564A1 (en) * 1976-08-05 1978-03-03 Bayer Ag PROCESS FOR PREPARING ALIPHATIC MONO-ISOCYANATES FROM THE CORRESPONDING CARBAMIC ACID CHLORIDES
FR2363543A1 (en) * 1976-09-04 1978-03-31 Bayer Ag PROCESS FOR THE PREPARATION OF MONOISOCYANATES
US4096166A (en) 1975-02-04 1978-06-20 E. I. Du Pont De Nemours And Company Process for the preparation of carbamates of N-hydroxythioimidates

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2174940A1 (en) * 1972-03-03 1973-10-19 Basf Ag
US4096166A (en) 1975-02-04 1978-06-20 E. I. Du Pont De Nemours And Company Process for the preparation of carbamates of N-hydroxythioimidates
FR2360564A1 (en) * 1976-08-05 1978-03-03 Bayer Ag PROCESS FOR PREPARING ALIPHATIC MONO-ISOCYANATES FROM THE CORRESPONDING CARBAMIC ACID CHLORIDES
FR2363543A1 (en) * 1976-09-04 1978-03-31 Bayer Ag PROCESS FOR THE PREPARATION OF MONOISOCYANATES

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee