FR2051238A5 - Isocyanates prepd by reacting aliphatic - halides with inorganic cyanates - Google Patents

Isocyanates prepd by reacting aliphatic - halides with inorganic cyanates

Info

Publication number
FR2051238A5
FR2051238A5 FR7023232A FR7023232A FR2051238A5 FR 2051238 A5 FR2051238 A5 FR 2051238A5 FR 7023232 A FR7023232 A FR 7023232A FR 7023232 A FR7023232 A FR 7023232A FR 2051238 A5 FR2051238 A5 FR 2051238A5
Authority
FR
France
Prior art keywords
isocyanates
prepd
halides
org
acid
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
FR7023232A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR2051238A5 publication Critical patent/FR2051238A5/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

Landscapes

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

Abstract

Prepn. of org. isocyanates by reacting an org. cpd. contng. at least one aliph.-bonded halogen atom with an alkaline(ne earth) metal or ammonium cyanate and separating the prod. in the presence of a small amt. (0.1-10 wt.%) of an (org) acid (e.g. an inorg. acid or a sulphonic acid). Pref. reaction temp. is 50-160 degrees C. Prods. may be used as known monomers in prodn. of polymeric urethane or ureas.
FR7023232A 1969-06-24 1970-06-23 Isocyanates prepd by reacting aliphatic - halides with inorganic cyanates Expired FR2051238A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3189369 1969-06-24
GB1985370 1970-04-24

Publications (1)

Publication Number Publication Date
FR2051238A5 true FR2051238A5 (en) 1971-04-02

Family

ID=26254289

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7023232A Expired FR2051238A5 (en) 1969-06-24 1970-06-23 Isocyanates prepd by reacting aliphatic - halides with inorganic cyanates

Country Status (4)

Country Link
BE (1) BE752418A (en)
DE (1) DE2031291A1 (en)
FR (1) FR2051238A5 (en)
NL (1) NL7009109A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780557A (en) * 1987-08-26 1988-10-25 The Dow Chemical Company Method of preparation of (substituted-thio)alkyl isothiocyanates

Also Published As

Publication number Publication date
BE752418A (en) 1970-12-23
DE2031291A1 (en) 1971-01-07
NL7009109A (en) 1970-12-29

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Legal Events

Date Code Title Description
ST Notification of lapse