GB1165012A - Production of Isocyanates - Google Patents

Production of Isocyanates

Info

Publication number
GB1165012A
GB1165012A GB38244/66A GB3824466A GB1165012A GB 1165012 A GB1165012 A GB 1165012A GB 38244/66 A GB38244/66 A GB 38244/66A GB 3824466 A GB3824466 A GB 3824466A GB 1165012 A GB1165012 A GB 1165012A
Authority
GB
United Kingdom
Prior art keywords
give
treating
reacting
hydrazine
methyl
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
GB38244/66A
Other languages
English (en)
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.)
University of Iowa
Original Assignee
University of Iowa
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 University of Iowa filed Critical University of Iowa
Publication of GB1165012A publication Critical patent/GB1165012A/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
    • C07C263/12—Preparation of derivatives of isocyanic acid from or via nitrogen analogues of carboxylic acids, e.g. from hydroxamic acids, involving a Hofmann, Curtius or Lossen-type rearrangement
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C241/00—Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
    • C07C241/04—Preparation of hydrazides
    • 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
    • C08G18/701—Compounds forming isocyanates or isothiocyanates in situ
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/04—Systems containing only non-condensed rings with a four-membered ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
GB38244/66A 1965-08-26 1966-08-25 Production of Isocyanates Expired GB1165012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48294165A 1965-08-26 1965-08-26

Publications (1)

Publication Number Publication Date
GB1165012A true GB1165012A (en) 1969-09-24

Family

ID=23918015

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38244/66A Expired GB1165012A (en) 1965-08-26 1966-08-25 Production of Isocyanates

Country Status (5)

Country Link
BE (1) BE686025A (enExample)
DE (1) DE1568033A1 (enExample)
GB (1) GB1165012A (enExample)
IT (1) IT1061731B (enExample)
NL (2) NL6612098A (enExample)

Also Published As

Publication number Publication date
BE686025A (enExample) 1967-02-27
NL6612098A (enExample) 1967-02-27
NL7003033A (enExample) 1970-05-25
DE1568033A1 (de) 1970-10-22
IT1061731B (it) 1983-04-30

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Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SPA Amended specification published
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees