AU2062170A - Process forthe purification of diphenylmethane 4, 4' diisocyanate - Google Patents

Process forthe purification of diphenylmethane 4, 4' diisocyanate

Info

Publication number
AU2062170A
AU2062170A AU20621/70A AU2062170A AU2062170A AU 2062170 A AU2062170 A AU 2062170A AU 20621/70 A AU20621/70 A AU 20621/70A AU 2062170 A AU2062170 A AU 2062170A AU 2062170 A AU2062170 A AU 2062170A
Authority
AU
Australia
Prior art keywords
diphenylmethane
diisocyanate
process forthe
forthe purification
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
AU20621/70A
Inventor
Karl Wrabetz Harald Oertel
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of AU2062170A publication Critical patent/AU2062170A/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
AU20621/70A 1969-10-04 1970-10-02 Process forthe purification of diphenylmethane 4, 4' diisocyanate Expired AU2062170A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE81950101 1969-10-04
DE19691950101 DE1950101A1 (en) 1969-10-04 1969-10-04 Process for the purification of diphenyl methane-4,4'-diisocyanate

Publications (1)

Publication Number Publication Date
AU2062170A true AU2062170A (en) 1972-04-13

Family

ID=5747301

Family Applications (1)

Application Number Title Priority Date Filing Date
AU20621/70A Expired AU2062170A (en) 1969-10-04 1970-10-02 Process forthe purification of diphenylmethane 4, 4' diisocyanate

Country Status (4)

Country Link
AU (1) AU2062170A (en)
BE (1) BE756979A (en)
DE (1) DE1950101A1 (en)
FR (1) FR2064979A5 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1517162A (en) * 1974-07-24 1978-07-12 Shell Int Research Purification of diisocyanate
DE19914292A1 (en) 1999-03-30 2000-10-05 Bayer Ag Reduction of the chorine content of low molecular isocyanates comprises reaction with a tertiary or quaternary amine group containing anion exchanger for ten minutes at less than two hundred degrees
DE19914291A1 (en) 1999-03-30 2000-10-05 Bayer Ag Process for the purification of a low molecular isocyanate, comprises addition of an oligomeric organic polyphosphate compound and heating for ten minutes below two hundred degrees
DE19922572A1 (en) 1999-05-17 2000-11-23 Bayer Ag Process for the purification of organic isocyanates, the organic isocyanates thus purified and their use

Also Published As

Publication number Publication date
DE1950101A1 (en) 1971-04-08
FR2064979A5 (en) 1971-07-23
BE756979A (en) 1971-03-16

Similar Documents

Publication Publication Date Title
CA934090A (en) Process for the production of polyurethane elastomers
CA928445A (en) Continuous process for preparing noncellular polyurethanes
CA930554A (en) Purification process
AU2062170A (en) Process forthe purification of diphenylmethane 4, 4' diisocyanate
CA944497A (en) Process for the manufacture of polyurethanes
CA922733A (en) Process for the production of 1,1,3,3-tetramethyl guanidine
CA930958A (en) Purification process
CA930136A (en) Process for the purification of hydrogen
AU1797070A (en) Process for the production of perborates
CA919921A (en) Purification process
CA927611A (en) Purification process
CA934089A (en) Process for the preparation of aromatic poly-n-alkyl urethanes
AU1319970A (en) Process for the manufacture of 4,6-or 5(10),6-3-oxo-19-nor-steroids
AU449049B2 (en) Process forthe production of 2-methylene 1, 3 diacetoxypropane
AU445773B2 (en) Process forthe preparation of polyurethane mastics
AU438216B2 (en) Process for the production of cyclohexanedione-(1,3)-hemihydrate
CA807708A (en) Process for the manufacture of 2,2,3-trichlorobutane
CA816731A (en) Process for the production of 2,3-dichloro-naphtho-quinone-(1,4)
CA814901A (en) Process for the production of perborates
CA806090A (en) Process for the production of perborates
CA831062A (en) Process for the manufacture of cyclododecatriene-(1,5,9)
AU1191370A (en) Process forthe production of 2-methylene 1, 3 diacetoxypropane
CA815073A (en) Production of cyclodo-decatriene-(1,5,9)
AU444184B2 (en) Process for the manufacture of polyurethanes
AU460269B2 (en) Process forthe production of polyurethanes