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

HRID 1941399Notes

Reaction equation

HRID 1941399 reaction equation
CC([NH:4]P([O:9][C:10]1[CH:15]=CC(Cl)=CC=1Cl)(OC)=S)C.CC1(C)CC(C[N:27]=[C:28]=[O:29])(C)CC([N:30]=[C:31]=[O:32])C1.[OH-].[Na+].CCN(C(C1C=CC=C(C)C=1)=O)CC>O.CC(=O)OCC>[NH2:27][C:28]([O:9][CH2:10][CH3:15])=[O:29].[NH2:4][C:31]([NH2:30])=[O:32]

Participants

7

Reactant 4

HCID 4284N,N-diethyl-m-toluamideHCID 9299ZytronHCID 14798Sodium HydroxideHCID 169132Isophorone diisocyanate

Product 1

HCID 21585015Urea Urethane

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 8857Ethyl AcetateSolvent

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 116.6 g of IPDI and 44.1 g of HDI at 80° C. for 2.5 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 2114 g of water. After 10 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 7.3 is obtained.

Workup

  1. customto prepare a prepolymer

Sources & evidence

ORD record
ord-a880481b24a34fdda311a9ce38a4bf62
Source dataset
uspto-grants-1997_12
Patent number
US05703158

Reaction notes

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