Reaction #93571

ord-a17b90e480af4ea9a79ef579459ff9d9

Reaction equation

[N-]=C=O
isocyanate
CC(=O)CC(C)C.CCOC(C)=O
ethyl acetate methyl isobutyl ketone
CCC(C)=NO
methyl ethyl ketoxime
→
CCC(CO)(CO)CO
trimethylolpropane
O=C=NCCCCCCN=C=O
hexamethylene diisocyanate

Reactants

—
NCO
—
445
[N-]=C=O
isocyanate
CC(=O)CC(C)C.CCOC(C)=O
ethyl acetate methyl isobutyl ketone
—
polyisocyanate
CCC(C)=NO
methyl ethyl ketoxime

Reagents

None

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Procedure

A 60% ethyl acetate/methyl isobutyl ketone (1/1) solution (an NCO equivalent of 445) of a blocked isocyanate prepared by blocking a polyisocyanate formed by the reaction between 1 mole of trimethylolpropane and 3 moles of hexamethylene diisocyanate with methyl ethyl ketoxime.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US04613652uspto-grants-1986_09