Diphenylmethane diisocyanate → Benzylbenzene diisocyanate

HRID 1073861

Reaktionsgleichung

[CH:1]1[C:6]([CH2:7][C:8]2[CH:13]=[CH:12][C:11]([N:14]=[C:15]=[O:16])=[CH:10][CH:9]=2)=[CH:5][CH:4]=[C:3](N=C=O)[CH:2]=1.C[N:21]([C:23](C(C1C=CC=CC=1)(C1C=CC=CC=1)CCN1CCC(O)(C2C=CC(Cl)=CC=2)CC1)=[O:24])C.Cl>>[N-:14]=[C:15]=[O:16].[N-:21]=[C:23]=[O:24].[C:6]1([CH2:7][C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=2)[CH:1]=[CH:2][CH:3]=[CH:4][CH:5]=1

Komponenten

Edukt 2

HCID 7570Diphenylmethane diisocyanate

HCID 71420Loperamide Hydrochloride

Produkt 1

HCID 19824838Benzylbenzene diisocyanate

Versuchsvorschrift

An isocyanate composition was produced which contained 0.48 part of a 4,4'- diphenylmethane diisocyanate in which 25-30 weight % of the isocyanate groups have been converted into a uretonimine form (marketed by ICI under the trade name `SUPRASEC` VM 020), 90 parts of a polymethylene polyphenylene polyisocyanate having a functionality of 2.7 and a content of diphenylmethane diisocyanate of 40% weight and between 29.5 and 31.0% by weight of isocyanate groups, and a prepolymer obtained by reacting 8.51 parts of a mixture of 4,440 -diphenylmethane diisocyanate and 2,440 -diphenylmethane diisocyanate (97.4% and 2.6%) with 1.01 parts of a mixture of propylene glycol, 1,3-butane diol and tripropylene glycol (0.8:0.8:1.0 molar ratio).

Quellen und Nachweise

ORD-Eintrag: ord-bd79e596b0144c35b092345a376ea7d1
Quelldatensatz: uspto-grants-1990_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US04972004

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