Cyclohexyl isocyanate → Isophorone carbodiimide

HRID 341721Notes

Reaction equation

HRID 341721 reaction equation
O=C=N[CH:4]1[CH2:13][C:12]([CH3:15])([CH3:14])[CH2:11][C:6](C)([CH2:7][N:8]=[C:9]=O)[CH2:5]1.C1([N:23]=C=[O:25])CCCCC1>>[NH:23]=[C:9]=[NH:8].[O:25]=[C:4]1[CH2:13][C:12]([CH3:15])([CH3:14])[CH2:11][C:6]([CH3:7])=[CH:5]1

Participants

3

Reactant 2

HCID 18502Cyclohexyl isocyanateHCID 169132Isophorone diisocyanate

Product 1

HCID 86753509Isophorone carbodiimide

Procedure

Reaction between 500 grams of isophorone diisocyanate and 62.6 grams of cyclohexyl isocyanate was effected in the presence of 5.63 grams of a carbodiimidizing catalyst (3methyl-1-phenyl-2-phospholene-1-oxide) at 180° C. for 24 hours, yielding isophorone carbodiimide having a degree of polymerization of 10. The carbodiimide resin was thoroughly pulverized. To 200 grams of this carbodiimide, 200 grams of distilled water having 1 gram of a nonylphenyl nonionic surfactant (Nonypol) dissolved therein was slowly added, obtaining a carbodiimide dispersion (resin concentration 50% by weight).

Sources & evidence

ORD record
ord-b4192dcde92244599637877ecfda0137
Source dataset
uspto-grants-1999_01
Patent number
US05856014

Reaction notes

Loading…