Toluene 2,4-Diisocyanate → Urethane acrylate

HRID 636001

Reaktionsgleichung

Reaktionsgleichung von HRID 636001
CC1C(N=C=O)=CC([N:8]=[C:9]=[O:10])=CC=1.CC1CCOC1.C([C:24]1C(C)=CC=C(C(C)(C)C)[C:25]=1[OH:35])(C)(C)C.SCCC[Si](OC)(OC)OC.[C:47]([O:51]CCO)(=[O:50])[CH:48]=[CH2:49]>O1CCCC1>[C:47]([OH:51])(=[O:50])[CH:48]=[CH2:49].[NH2:8][C:9]([O:35][CH2:25][CH3:24])=[O:10]

Komponenten

7

Edukt 5

HCID 11443Toluene 2,4-DiisocyanateHCID 131652-Hydroxyethyl acrylateHCID 20473(3-Mercaptopropyl)trimethoxysilaneHCID 982303-MethyltetrahydrofuranHCID 243241Phenol, 2,6-bis(1,1-dimethylethyl)methyl-

Produkt 1

HCID 21863578Urethane acrylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

In a reaction vessel equipped with a stirrer were charged 228.1 g of 2,4-tolylene diisocyanate, 1699.8 g of a ring-opening copolymer of tetrahydrofuran and 3-methyltetrahydrofuran, having a number average molecular weight of 2,000, and 0.5 g of 2,6-di-t-butyl-methylphenol, as a polymerization inhibitor. After cooling the mixture to a temperature of below 10° C. in an ice water bath, 1.6 g of dibutyltindilaurate was added to initiate the reaction. The reaction was carried out for 2 hours while controlling the temperature at 20-35° C. Then, after the addition of 20.4 g of γ-mercaptopropyltrimethoxysilane, the mixture was stirred for a further one hour at 35-40° C., whereupon 89.3 of hydroxyethyl acrylate was added, followed by stirring for 5 hours at 40-60° C., to obtain liquid urethane acrylate (A-1) having a number average molecular weight of 4,750.

Aufarbeitung

  1. customIn a reaction vessel equipped with a stirrer
  2. temperatureAfter cooling the mixture to a temperature of below 10° C. in an ice water bath
  3. addition1.6 g of dibutyltindilaurate was added
  4. customthe reaction
  5. customat 20-35° C
  6. additionwas added

Quellen und Nachweise

ORD-Eintrag
ord-b47600adc4244721a23acdfe7f019262
Quelldatensatz
uspto-grants-2001_02
Patentnummer
US06191187B1

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