Reaction #452412

ord-492df67242dd46b4a16e440148d080a3

Reaction equation

O=C=NCCCCCCN=C=O
HMDI
O=C=NC1CCCCC1
cyclohexyl isocyanate
→
O=C=NC1CCCCC1
CHI
N=C=N
carbodiimide
O=C=NCCCCCCN=C=O
HMDI

Reactants

O=C=NCCCCCCN=C=O
HMDI
O=C=NC1CCCCC1
cyclohexyl isocyanate

Reagents

—
carbodiimidization catalyst

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    Otherwere subjected to a reaction at 185° C. for 19 hours while nitrogen
  2. 2
    Otherwas bubbled

Procedure

To a mixture of 236 g of HMDI with 25.0 g of cyclohexyl isocyanate (referred to hereinafter as CHI) was added 2.60 g of the carbodiimidization catalyst, and they were subjected to a reaction at 185° C. for 19 hours while nitrogen was bubbled thereinto, to obtain a carbodiimide resulting from HMDI and CHI (degree of polymerization=10).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06126860uspto-grants-2000_10