SE426167B - Sett att rena difenylmetan-4,4'-diisocyanat, som er nervarande i en rablandning innehallande minst 80 vikt-% difenylmetan-4,4' diisocyanat och even innehallande difenylmetan-2,4-diisocyanat - Google Patents

Sett att rena difenylmetan-4,4'-diisocyanat, som er nervarande i en rablandning innehallande minst 80 vikt-% difenylmetan-4,4' diisocyanat och even innehallande difenylmetan-2,4-diisocyanat

Info

Publication number
SE426167B
SE426167B SE7508355A SE7508355A SE426167B SE 426167 B SE426167 B SE 426167B SE 7508355 A SE7508355 A SE 7508355A SE 7508355 A SE7508355 A SE 7508355A SE 426167 B SE426167 B SE 426167B
Authority
SE
Sweden
Prior art keywords
diisocyanate
difenylmethan
difenylmetane
pure
weight
Prior art date
Application number
SE7508355A
Other languages
English (en)
Swedish (sv)
Other versions
SE7508355L (sv
Inventor
L Alders
Original Assignee
Shell Int Research
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 Int Research filed Critical Shell Int Research
Publication of SE7508355L publication Critical patent/SE7508355L/xx
Publication of SE426167B publication Critical patent/SE426167B/xx

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)
SE7508355A 1974-07-24 1975-07-22 Sett att rena difenylmetan-4,4'-diisocyanat, som er nervarande i en rablandning innehallande minst 80 vikt-% difenylmetan-4,4' diisocyanat och even innehallande difenylmetan-2,4-diisocyanat SE426167B (sv)

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
SE7508355L SE7508355L (sv) 1976-01-26
SE426167B true SE426167B (sv) 1982-12-13

Family

ID=10343032

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7508355A SE426167B (sv) 1974-07-24 1975-07-22 Sett att rena difenylmetan-4,4'-diisocyanat, som er nervarande i en rablandning innehallande minst 80 vikt-% difenylmetan-4,4' diisocyanat och even innehallande difenylmetan-2,4-diisocyanat

Country Status (12)

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

Families Citing this family (10)

* 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 (enExample) * 1986-05-20 1987-11-26
JPH0179269U (enExample) * 1987-11-18 1989-05-29
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
JP2022170318A (ja) * 2021-04-28 2022-11-10 旭化成株式会社 イソシアネートの製造方法

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
SE7508355L (sv) 1976-01-26
JPS5134137A (en) 1976-03-23
DE2532722A1 (de) 1976-02-05
NL7508717A (nl) 1976-01-27
AU8327375A (en) 1977-01-27
BE831413A (nl) 1976-01-16
FR2279723B1 (enExample) 1977-12-09
JPS6123180B2 (enExample) 1986-06-04
ATA566075A (de) 1976-11-15
GB1517162A (en) 1978-07-12
ES439618A1 (es) 1977-01-16
BR7504660A (pt) 1976-07-06
FR2279723A1 (fr) 1976-02-20
IT1039988B (it) 1979-12-10
AT337669B (de) 1977-07-11
DE2532722C2 (de) 1985-02-21
DD118618A5 (enExample) 1976-03-12

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