N,N-diethyl-m-toluamide → Urea Urethane

HRID 1941393

Reaktionsgleichung

Reaktionsgleichung von HRID 1941393
CC([NH:4]P([O:9][C:10]1[CH:15]=CC(Cl)=CC=1Cl)(OC)=S)C.CC([N:33]=[C:34]=[O:35])(C1C=CC=C(C([N:30]=[C:31]=[O:32])(C)C)C=1)C.[OH-].[Na+].CCN(C(C1C=CC=C(C)C=1)=O)CC>O.CC(=O)OCC>[NH2:30][C:31]([O:9][CH2:10][CH3:15])=[O:32].[NH2:4][C:34]([NH2:33])=[O:35]

Komponenten

7

Edukt 4

HCID 4284N,N-diethyl-m-toluamideHCID 9299ZytronHCID 14798Sodium Hydroxide2×HCID 177191,3-Bis(1-isocyanato-1-methylethyl)benzene

Produkt 1

HCID 21585015Urea Urethane

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel2×

Versuchsvorschrift

190.8 g of Rucoflex XS-5570-55, 102.9 g of Rucoflex S-1011-55 and 6.7 g of DMPA are reacted with 73.2 g of TMXDI in the presence of the T-12 at 85° C. for 4 hours to prepare a prepolymer. 3.4 g of sodium hydroxide and 1.83 g of EA are dissolved in 660 g of water, and then the prepolymer is dispersed by adding the aqueous solution containing NaOH and EA. After 5 minutes, a solution of 4.08 g of DETA in 51 g of water is added and stirring is continued for 15 minutes to form the aqueous poly(urethane/urea) dispersion. A finely divided dispersion having a solids content of 34.9% and a pH of 7.95 is obtained.

Aufarbeitung

  1. customto prepare a prepolymer
  2. additionthe prepolymer is dispersed
  3. additionby adding the aqueous solution
  4. waitis continued for 15 minutes

Quellen und Nachweise

ORD-Eintrag
ord-8582a2b094ba4e238e32e6d94d5b52b3
Quelldatensatz
uspto-grants-1997_12
Patentnummer
US05703158

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