GB1035142A - Improvements in and relating to diisocyanates - Google Patents

Improvements in and relating to diisocyanates

Info

Publication number
GB1035142A
GB1035142A GB2374464A GB2374464A GB1035142A GB 1035142 A GB1035142 A GB 1035142A GB 2374464 A GB2374464 A GB 2374464A GB 2374464 A GB2374464 A GB 2374464A GB 1035142 A GB1035142 A GB 1035142A
Authority
GB
United Kingdom
Prior art keywords
diisocyanates
relating
diisocyanate
distils
passed
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
GB2374464A
Inventor
Jack Gert Lowenstein
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.)
FMC Corp
Original Assignee
FMC 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 FMC Corp filed Critical FMC Corp
Priority to GB2374464A priority Critical patent/GB1035142A/en
Publication of GB1035142A publication Critical patent/GB1035142A/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
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification

Landscapes

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

Abstract

Aromatic diisocyanate distillation residues are passed in the form of a thin film over a heated surface, whereby the diisocyanate distils off. The product is e.g. 2,4- and/or 2,6-toluene diisocyanate.
GB2374464A 1964-06-09 1964-06-09 Improvements in and relating to diisocyanates Expired GB1035142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2374464A GB1035142A (en) 1964-06-09 1964-06-09 Improvements in and relating to diisocyanates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2374464A GB1035142A (en) 1964-06-09 1964-06-09 Improvements in and relating to diisocyanates

Publications (1)

Publication Number Publication Date
GB1035142A true GB1035142A (en) 1966-07-06

Family

ID=10200605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2374464A Expired GB1035142A (en) 1964-06-09 1964-06-09 Improvements in and relating to diisocyanates

Country Status (1)

Country Link
GB (1) GB1035142A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105242A2 (en) * 1982-09-30 1984-04-11 Mobay Corporation Reduction of free monomer in isocyanate adducts
US4888442A (en) * 1982-09-30 1989-12-19 Mobay Corporation Reduction of free monomer in isocyanate adducts
CN110167913A (en) * 2017-01-18 2019-08-23 科思创德国股份有限公司 The method of diisocyanate is recycled from bottoms

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0105242A2 (en) * 1982-09-30 1984-04-11 Mobay Corporation Reduction of free monomer in isocyanate adducts
EP0105242A3 (en) * 1982-09-30 1985-10-30 Mobay Chemical Corporation Reduction of free monomer in isocyanate adducts
US4888442A (en) * 1982-09-30 1989-12-19 Mobay Corporation Reduction of free monomer in isocyanate adducts
CN110167913A (en) * 2017-01-18 2019-08-23 科思创德国股份有限公司 The method of diisocyanate is recycled from bottoms

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