GB1243793A - Process for the production of polyether isocyanates - Google Patents

Process for the production of polyether isocyanates

Info

Publication number
GB1243793A
GB1243793A GB3855468A GB3855468A GB1243793A GB 1243793 A GB1243793 A GB 1243793A GB 3855468 A GB3855468 A GB 3855468A GB 3855468 A GB3855468 A GB 3855468A GB 1243793 A GB1243793 A GB 1243793A
Authority
GB
United Kingdom
Prior art keywords
formula
group
phosgene
amine
reaction
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
GB3855468A
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.)
Wyandotte Chemicals Corp
Original Assignee
Wyandotte Chemicals Corp
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 Wyandotte Chemicals Corp filed Critical Wyandotte Chemicals Corp
Publication of GB1243793A publication Critical patent/GB1243793A/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
    • C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/771—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur oxygen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Emergency Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,243,793. Polyether isocyanates. WYANDOTTE CHEMICALS CORP. 12 Aug., 1968 [1 Sept., 1967], No. 38554/68. Heading C3R. [Also in Division C2] Polyether isocyanates of the formula wherein m is 2 or 3, R<SP>1</SP> is or and R is a group of the formula wherein R<SP>11</SP> is a di- or tri-functional C 2-6 alkylene group, a C 4-8 oxyalkylene group or an alkyl diarylene group having up to 25 carbon atoms, R<SP>111</SP> is hydrogen, methyl or ethyl and n is 1 to 20, are obtained by reacting, in solution, phosgene with an amine of formula The reaction is preferably effected in an inert solvent by contacting the amine with phosgene at 0-60‹ C. and completing the reaction at 100-175‹ C. Suitable starting materials include polypropylene glycol (500 to 2000) and condensates of propylene oxide with polyols which have been cyanoethylated and subsequently hydrogenated.
GB3855468A 1967-09-01 1968-08-12 Process for the production of polyether isocyanates Expired GB1243793A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66494967A 1967-09-01 1967-09-01

Publications (1)

Publication Number Publication Date
GB1243793A true GB1243793A (en) 1971-08-25

Family

ID=24668109

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3855468A Expired GB1243793A (en) 1967-09-01 1968-08-12 Process for the production of polyether isocyanates

Country Status (5)

Country Link
BE (1) BE720158A (en)
DE (1) DE1793329B2 (en)
FR (1) FR1578622A (en)
GB (1) GB1243793A (en)
NL (1) NL6812438A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007020777A1 (en) * 2005-08-18 2007-02-22 Nippon Polyurethane Industry Co., Ltd. Process for producing aliphatic isocyanate having oxyalkylene group
CN110305041A (en) * 2019-07-18 2019-10-08 甘肃银光聚银化工有限公司 A kind of method of direct light phosgenation synthesis ether-containing key diisocyanate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535506A1 (en) * 1995-09-25 1997-03-27 Bayer Ag Production of ether isocyanates by gas phase phosgenation of ether amines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007020777A1 (en) * 2005-08-18 2007-02-22 Nippon Polyurethane Industry Co., Ltd. Process for producing aliphatic isocyanate having oxyalkylene group
CN110305041A (en) * 2019-07-18 2019-10-08 甘肃银光聚银化工有限公司 A kind of method of direct light phosgenation synthesis ether-containing key diisocyanate

Also Published As

Publication number Publication date
BE720158A (en) 1969-02-28
FR1578622A (en) 1969-08-14
DE1793329B2 (en) 1974-07-04
NL6812438A (en) 1969-03-04
DE1793329A1 (en) 1972-03-30

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