Diphenylmethane diisocyanate → Adipic Acid

HRID 581643

Reaktionsgleichung

Reaktionsgleichung von HRID 581643
[C:1]([O-:14])(=[O:13])[CH2:2][CH2:3][CH2:4]CCCCCCCC.[C:15]([O-:28])(=[O:27])[CH2:16]CCCCCCCCCC.C([Sn+2]CCCC)CCC.C1C=CC(C(N=C=O)N=C=O)=CC=1.C1C(CC2C=CC(N=C=O)=CC=2)=CC=C(N=C=O)C=1.[O:70]1[CH2:74][CH2:73][CH2:72][CH2:71]1>>[CH2:4]([OH:27])[CH2:3][CH2:2][CH2:1][OH:14].[C:74]([OH:70])(=[O:13])[CH2:73][CH2:72][CH2:71][CH2:16][C:15]([OH:28])=[O:27]

Komponenten

6

Edukt 4

HCID 7570Diphenylmethane diisocyanateHCID 8028TetrahydrofuranHCID 9809426Di-n-butyldilauryltinHCID 12905475Diisocyanatotoluene

Produkt 2

HCID 196Adipic AcidHCID 80641,4-Butanediol

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

0.5 g of dibutyltin dilaurate was added to a 60% strength by weight solution of 106.1 g of toluylene diisocyanate and 150.0 g of diphenylmethane 4,4'-diisocyanate in tetrahydrofuran, and the mixture was then heated to 60° C. At this temperature, a 60% strength by weight solution of 500 g of a polyesterol obtained from 1,4-butanediol and adipic acid and having a molecular weight of 1000, 2.68 g of trimethylolpropane and 55.5 g of hexanediol in tetrahydrofuran was metered in over 2 hours. After the end of the addition, the reaction mixture was stirred at 60° C. until an NCO content of 1.05% by weight was reached.

Quellen und Nachweise

ORD-Eintrag
ord-a7af763db6644ca8afca97088e54204b
Quelldatensatz
uspto-grants-1999_07
Patentnummer
US05922469

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