GB2113673B - Production of isocyanates from esters of aromatic carbamic acids (urethanes) - Google Patents

Production of isocyanates from esters of aromatic carbamic acids (urethanes)

Info

Publication number
GB2113673B
GB2113673B GB08204374A GB8204374A GB2113673B GB 2113673 B GB2113673 B GB 2113673B GB 08204374 A GB08204374 A GB 08204374A GB 8204374 A GB8204374 A GB 8204374A GB 2113673 B GB2113673 B GB 2113673B
Authority
GB
United Kingdom
Prior art keywords
isocyanates
urethanes
esters
production
carbamic acids
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
GB08204374A
Other languages
English (en)
Other versions
GB2113673A (en
Inventor
Ralph Joseph Spohn
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
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
Priority claimed from US06/343,584 external-priority patent/US4487713A/en
Application filed by Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Publication of GB2113673A publication Critical patent/GB2113673A/en
Application granted granted Critical
Publication of GB2113673B publication Critical patent/GB2113673B/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB08204374A 1982-01-28 1982-02-15 Production of isocyanates from esters of aromatic carbamic acids (urethanes) Expired GB2113673B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/343,584 US4487713A (en) 1981-06-26 1982-01-28 Production of isocyanates from esters of aromatic carbamic acids (urethanes)

Publications (2)

Publication Number Publication Date
GB2113673A GB2113673A (en) 1983-08-10
GB2113673B true GB2113673B (en) 1986-08-06

Family

ID=23346698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08204374A Expired GB2113673B (en) 1982-01-28 1982-02-15 Production of isocyanates from esters of aromatic carbamic acids (urethanes)

Country Status (9)

Country Link
JP (1) JPS58128354A (enExample)
AU (1) AU8054682A (enExample)
BR (1) BR8200861A (enExample)
CA (1) CA1176647A (enExample)
ES (1) ES509683A0 (enExample)
FR (1) FR2520359A1 (enExample)
GB (1) GB2113673B (enExample)
IT (1) IT1147624B (enExample)
NL (1) NL8200630A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420114A1 (de) * 1984-05-30 1985-12-05 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von uretdiongruppen aufweisenden polyisocyanaten
CN110467546B (zh) * 2018-05-10 2021-03-19 中国科学院过程工程研究所 一种制备间苯二亚甲基二异氰酸酯的方法
CN110423208A (zh) * 2019-08-15 2019-11-08 中国科学院过程工程研究所 一种二苯甲烷二异氰酸酯的制备方法

Also Published As

Publication number Publication date
AU8054682A (en) 1983-08-04
JPS58128354A (ja) 1983-07-30
ES8304927A1 (es) 1983-03-16
IT8247810A0 (it) 1982-02-17
FR2520359B3 (enExample) 1985-02-15
CA1176647A (en) 1984-10-23
ES509683A0 (es) 1983-03-16
FR2520359A1 (fr) 1983-07-29
IT1147624B (it) 1986-11-19
BR8200861A (pt) 1983-10-18
NL8200630A (nl) 1983-08-16
GB2113673A (en) 1983-08-10

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Legal Events

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