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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1420141Generated: October 30, 2026

Cyclohexylamine → Hexamethylene diisocyanate

https://huagongshe.com/reaction/1420141

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclohexylamineHCID 7965—
ReactantHexamethylene diisocyanateHCID 13192—
ProductHexamethylene diisocyanateHCID 13192—
ProductCarbodiimideHCID 160435—

Reaction Conditions

Temperature100 °C

Reaction Steps

To 288 g of HMDI was added 20 g of cyclohexylamine and they were stirred at 100° C. for one hour while nitrogen was bubbled thereinto and subsequently 2.9 g of the carbodiimidization catalyst was added thereto, after which the resulting mixture was subjected to a reaction at 185° C. for 30 hours, to obtain a carbodiimide resulting from HMDI and having terminal urea bonds (degree of polymerization=10).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05889096
Source datasetuspto-grants-1999_03
ORD IDord-9657698b851b4fd3b46995e3d92d9351
Source noteuspto-grants-1999_03