BR7504660A - Processo para purificacao de difenil-metano-4,4'-diisocianato - Google Patents

Processo para purificacao de difenil-metano-4,4'-diisocianato

Info

Publication number
BR7504660A
BR7504660A BR7504660A BR7504660A BR7504660A BR 7504660 A BR7504660 A BR 7504660A BR 7504660 A BR7504660 A BR 7504660A BR 7504660 A BR7504660 A BR 7504660A BR 7504660 A BR7504660 A BR 7504660A
Authority
BR
Brazil
Prior art keywords
diisocianate
diphenyl
methane
purification
Prior art date
Application number
BR7504660A
Other languages
English (en)
Portuguese (pt)
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 BR7504660A publication Critical patent/BR7504660A/pt

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)
BR7504660A 1974-07-24 1975-07-22 Processo para purificacao de difenil-metano-4,4'-diisocianato BR7504660A (pt)

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
BR7504660A true BR7504660A (pt) 1976-07-06

Family

ID=10343032

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7504660A BR7504660A (pt) 1974-07-24 1975-07-22 Processo para purificacao de difenil-metano-4,4'-diisocianato

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
DE19914292A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Verringerung des Chlorgehaltes von organischen Isocyanaten
DE19914291A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen 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
SE7508355L (sv) 1976-01-26
BE831413A (nl) 1976-01-16
DD118618A5 (fr) 1976-03-12
GB1517162A (en) 1978-07-12
FR2279723B1 (fr) 1977-12-09
ATA566075A (de) 1976-11-15
ES439618A1 (es) 1977-01-16
SE426167B (sv) 1982-12-13
DE2532722C2 (de) 1985-02-21
NL7508717A (nl) 1976-01-27
JPS6123180B2 (fr) 1986-06-04
IT1039988B (it) 1979-12-10
FR2279723A1 (fr) 1976-02-20
JPS5134137A (en) 1976-03-23
AT337669B (de) 1977-07-11
DE2532722A1 (de) 1976-02-05
AU8327375A (en) 1977-01-27

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