FR2279723B1 - - Google Patents

Info

Publication number
FR2279723B1
FR2279723B1 FR7522790A FR7522790A FR2279723B1 FR 2279723 B1 FR2279723 B1 FR 2279723B1 FR 7522790 A FR7522790 A FR 7522790A FR 7522790 A FR7522790 A FR 7522790A FR 2279723 B1 FR2279723 B1 FR 2279723B1
Authority
FR
France
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
FR7522790A
Other versions
FR2279723A1 (fr
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
Publication of FR2279723A1 publication Critical patent/FR2279723A1/fr
Application granted granted Critical
Publication of FR2279723B1 publication Critical patent/FR2279723B1/fr
Granted 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)
FR7522790A 1974-07-24 1975-07-22 Purification de diisocyanate Granted FR2279723A1 (fr)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
FR2279723A1 FR2279723A1 (fr) 1976-02-20
FR2279723B1 true FR2279723B1 (fr) 1977-12-09

Family

ID=10343032

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7522790A Granted FR2279723A1 (fr) 1974-07-24 1975-07-22 Purification de diisocyanate

Country Status (12)

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

Families Citing this family (8)

* 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 (de) * 1983-08-11 1985-02-28 Bayer Ag, 5090 Leverkusen Verfahren zur reinigung von polyisocyanaten und die so gereinigten polyisocyanate
DE3430022A1 (de) * 1984-08-16 1986-02-27 Bayer Ag, 5090 Leverkusen Verfahren zur gewinnung von reinen diisocyanaten
JPS62185917U (fr) * 1986-05-20 1987-11-26
DE19914291A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen Isocyanaten
DE19914292A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Verringerung des Chlorgehaltes von organischen Isocyanaten
DE19922572A1 (de) 1999-05-17 2000-11-23 Bayer Ag Verfahren zur Reinigung von organischen Isocyanaten, die so gereinigten organischen Isocyanate und ihre Verwendung
DE102004005319A1 (de) 2004-02-04 2005-08-25 Bayer Materialscience Ag Verfahren zur Herstellung von hochreinem 2,4'-Methylendiphenyldiisocyanat

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE756979A (fr) * 1969-10-04 1971-03-16 Bayer Ag Procede de purification du diphenylmethane-4,4' -diisocyanate

Also Published As

Publication number Publication date
IT1039988B (it) 1979-12-10
AU8327375A (en) 1977-01-27
BR7504660A (pt) 1976-07-06
GB1517162A (en) 1978-07-12
SE7508355L (sv) 1976-01-26
BE831413A (nl) 1976-01-16
DE2532722C2 (de) 1985-02-21
DE2532722A1 (de) 1976-02-05
ATA566075A (de) 1976-11-15
JPS5134137A (en) 1976-03-23
ES439618A1 (es) 1977-01-16
DD118618A5 (fr) 1976-03-12
FR2279723A1 (fr) 1976-02-20
JPS6123180B2 (fr) 1986-06-04
SE426167B (sv) 1982-12-13
AT337669B (de) 1977-07-11
NL7508717A (nl) 1976-01-27

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Legal Events

Date Code Title Description
ST Notification of lapse