Trimethylolpropane → Carbamic acid, ethyl ester

HRID 1373998Notes

Reaction equation

HRID 1373998 reaction equation
C(O)C[CH2:3][CH2:4][OH:5].C(C(CO)(CO)CC)O.C(C(CO)(C)C(O)=O)O.CC1(C)CC(C[N:34]=[C:35]=[O:36])(C)CC(N=C=O)C1>CC(C)=O>[N-:34]=[C:35]=[O:36].[NH2:34][C:35]([O:5][CH2:4][CH3:3])=[O:36]

Participants

7

Reactant 4

HCID 6510TrimethylolpropaneHCID 80641,4-ButanediolHCID 78501Dimethylolpropionic acidHCID 169132Isophorone diisocyanate

Product 2

HCID 5641Carbamic acid, ethyl esterHCID 105034Isocyanate

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent2×

Procedure

An autoclave was charged with a mixture of 246.7 parts of polycaprolactonediol (number average molecular weight 2000), 7.4 parts of 1,4-butanediol, 5.1 parts of trimethylolpropane, 17.9 parts of dimethylolpropionic acid, 123.0 parts of IPDI and 400 parts of acetone, followed by introducing nitrogen gas so as to be replaced, reacting at 80° C. for 7 hours to obtain an acetone solution of an isocyanate (NCO)-terminating urethane prepolymer having a NCO content of 1.67%, cooling the acetone solution at 30° C., adding 13.5 parts of triethylamine, adding 600 parts of water, distilling off the acetone at 50 to 60° C. under vacuum to obtain a 40.0% solid content water based urethane resin emulsion C-2.

Workup

  1. additionby introducing nitrogen gas so as

Sources & evidence

ORD record
ord-1b08ecff192e4385883180e818a752bf
Source dataset
uspto-grants-2007_01
Patent number
US07163979B2

Reaction notes

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