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

HRID 1941400Notes

Reaction equation

HRID 1941400 reaction equation
CC([NH:4]P([O:9][C:10]1[CH:15]=CC(Cl)=CC=1Cl)(OC)=S)C.[OH-].[Na+].CC(=O)OCC.CC[N:28]([C:31](C1C=CC=C(C)C=1)=[O:32])CC>O>[NH2:28][C:31]([O:9][CH2:10][CH3:15])=[O:32].[NH2:28][C:31]([NH2:4])=[O:32]

Participants

6

Reactant 4

HCID 4284N,N-diethyl-m-toluamideHCID 8857Ethyl AcetateHCID 9299ZytronHCID 14798Sodium Hydroxide

Product 1

HCID 21585015Urea Urethane

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

286.2 g of Rucoflex XS-5570-55, 675.0 g of Rucoflex S-1011-35 and 20.1 g of DMPA are reacted with 132.3 g of HDI at 80° C. for 2 hours to prepare a prepolymer. The prepolymer is then dispersed in a solution of 8.4 g of NaOH and 4.8 g of EA in 1961.0 g of water. After 15 minutes, a solution of 4.7 g of EDA and 5.4 g of DETA in 150.0 g of water is added to form an aqueous poly(urethane/urea) dispersion. A finely divided dispersion having a solids content of 35.1% and a pH of 7.2 is obtained.

Workup

  1. customto prepare a prepolymer

Sources & evidence

ORD record
ord-69e60f47b9774b469a4b47b522c6188f
Source dataset
uspto-grants-1997_12
Patent number
US05703158

Reaction notes

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