GB1517162A - Purification of diisocyanate - Google Patents

Purification of diisocyanate

Info

Publication number
GB1517162A
GB1517162A GB3272174A GB3272174A GB1517162A GB 1517162 A GB1517162 A GB 1517162A GB 3272174 A GB3272174 A GB 3272174A GB 3272174 A GB3272174 A GB 3272174A GB 1517162 A GB1517162 A GB 1517162A
Authority
GB
United Kingdom
Prior art keywords
diisocyanate
purification
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
GB3272174A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB3272174A priority Critical patent/GB1517162A/en
Priority to BE1006784A priority patent/BE831413A/en
Priority to AT566075A priority patent/AT337669B/en
Priority to DE19752532722 priority patent/DE2532722C2/en
Priority to ES439618A priority patent/ES439618A1/en
Priority to FR7522790A priority patent/FR2279723A1/en
Priority to BR7504660A priority patent/BR7504660A/en
Priority to DD18741575A priority patent/DD118618A5/xx
Priority to JP8893975A priority patent/JPS5134137A/en
Priority to IT2565375A priority patent/IT1039988B/en
Priority to AU83273/75A priority patent/AU485639B2/en
Priority to NL7508717A priority patent/NL7508717A/en
Priority to SE7508355A priority patent/SE426167B/en
Publication of GB1517162A publication Critical patent/GB1517162A/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)
GB3272174A 1974-07-24 1974-07-24 Purification of diisocyanate Expired GB1517162A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
GB3272174A GB1517162A (en) 1974-07-24 1974-07-24 Purification of diisocyanate
BE1006784A BE831413A (en) 1974-07-24 1975-07-16 PURIFICATION OF DI-ISOCYANATE
AT566075A AT337669B (en) 1974-07-24 1975-07-22 PROCESS FOR PURIFICATION OF DIPHENYLMETHANE-4,4'-DIISOCYANATE
DE19752532722 DE2532722C2 (en) 1974-07-24 1975-07-22 Process for the purification of diphenylmethane-4,4'-diisocyanate
ES439618A ES439618A1 (en) 1974-07-24 1975-07-22 Purification of diisocyanate
FR7522790A FR2279723A1 (en) 1974-07-24 1975-07-22 DIISOCYANATE PURIFICATION
BR7504660A BR7504660A (en) 1974-07-24 1975-07-22 PROCESS FOR PURIFICATION OF DIPHENYL-METHANE-4,4'-DIISOCIANATE
DD18741575A DD118618A5 (en) 1974-07-24 1975-07-22
JP8893975A JPS5134137A (en) 1974-07-24 1975-07-22 Jifueniru metan 4 4** jiisoshianeetonoseiseiho
IT2565375A IT1039988B (en) 1974-07-24 1975-07-22 PROCESS FOR DIISOCYANATE PURIFICATION
AU83273/75A AU485639B2 (en) 1974-07-24 1975-07-22 Purification of diisocyanate
NL7508717A NL7508717A (en) 1974-07-24 1975-07-22 PURIFICATION OF DI-ISOCYANATE.
SE7508355A SE426167B (en) 1974-07-24 1975-07-22 SET TO PURE DIFENYLMETHAN-4,4'-DIISOCYANATE WHICH IS PRESENT IN A QUICK MIXTURE CONTAINING AT LEAST 80% BY WEIGHT OF DIFENYLMETHAN-4,4 'DIISOCYANATE AND ALSO INCLUDING DIFENYLMETANE-2,4-DIISOCYANATE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3272174A GB1517162A (en) 1974-07-24 1974-07-24 Purification of diisocyanate

Publications (1)

Publication Number Publication Date
GB1517162A true GB1517162A (en) 1978-07-12

Family

ID=10343032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3272174A Expired GB1517162A (en) 1974-07-24 1974-07-24 Purification of diisocyanate

Country Status (12)

Country Link
JP (1) JPS5134137A (en)
AT (1) AT337669B (en)
BE (1) BE831413A (en)
BR (1) BR7504660A (en)
DD (1) DD118618A5 (en)
DE (1) DE2532722C2 (en)
ES (1) ES439618A1 (en)
FR (1) FR2279723A1 (en)
GB (1) GB1517162A (en)
IT (1) IT1039988B (en)
NL (1) NL7508717A (en)
SE (1) SE426167B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222066B1 (en) 1999-03-30 2001-04-24 Bayer Aktiengesellschaft Process for decreasing the chlorine content of organic isocyanates
US6391161B1 (en) 1999-03-30 2002-05-21 Bayer Aktiengesellschaft Method for reducing the chlorine content of low molecular weight isocyanates
US6395925B1 (en) 1999-05-17 2002-05-28 Bayer Aktiengesellschaft Process for purifying organic isocyanates, the organic isocyanates so purified and their use
US7495124B2 (en) 2004-02-04 2009-02-24 Bayer Materialscience Ag Process for the production of very pure 2,4′-methylenediphenyl diisocyanate

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201066A (en) * 1978-03-29 1980-05-06 Damon Corporation Flexible shaft construction for a high inertia centrifuge
DE3329124A1 (en) * 1983-08-11 1985-02-28 Bayer Ag, 5090 Leverkusen METHOD FOR PURIFYING POLYISOCYANATES AND THE POLYISOCYANATES SO PURIFIED
DE3430022A1 (en) * 1984-08-16 1986-02-27 Bayer Ag, 5090 Leverkusen METHOD FOR OBTAINING PURE DIISOCYANATES
JPS62185917U (en) * 1986-05-20 1987-11-26

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756979A (en) * 1969-10-04 1971-03-16 Bayer Ag PROCESS FOR PURIFICATION OF DIPHENYLMETHANE-4,4 '-DIISOCYANATE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222066B1 (en) 1999-03-30 2001-04-24 Bayer Aktiengesellschaft Process for decreasing the chlorine content of organic isocyanates
US6391161B1 (en) 1999-03-30 2002-05-21 Bayer Aktiengesellschaft Method for reducing the chlorine content of low molecular weight isocyanates
US6395925B1 (en) 1999-05-17 2002-05-28 Bayer Aktiengesellschaft Process for purifying organic isocyanates, the organic isocyanates so purified and their use
US7495124B2 (en) 2004-02-04 2009-02-24 Bayer Materialscience Ag Process for the production of very pure 2,4′-methylenediphenyl diisocyanate

Also Published As

Publication number Publication date
BE831413A (en) 1976-01-16
IT1039988B (en) 1979-12-10
AU8327375A (en) 1977-01-27
DE2532722A1 (en) 1976-02-05
ES439618A1 (en) 1977-01-16
FR2279723A1 (en) 1976-02-20
SE426167B (en) 1982-12-13
JPS6123180B2 (en) 1986-06-04
DE2532722C2 (en) 1985-02-21
ATA566075A (en) 1976-11-15
BR7504660A (en) 1976-07-06
SE7508355L (en) 1976-01-26
DD118618A5 (en) 1976-03-12
JPS5134137A (en) 1976-03-23
NL7508717A (en) 1976-01-27
AT337669B (en) 1977-07-11
FR2279723B1 (en) 1977-12-09

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Legal Events

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