Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 245132Generated: October 25, 2026

Toluene 2,4-Diisocyanate → Bis(2-hydroxyphenyl)methane

https://huagongshe.com/reaction/245132

Reaction equation

Participants

RoleNameHCIDCharge
ReactantToluene 2,4-DiisocyanateHCID 11443—
ReactantBis(2-hydroxyphenyl)methaneHCID 75575—
CatalystTetrabutylammonium BromideHCID 74236—
ProductBis(2-hydroxyphenyl)methaneHCID 75575—
ProductIsocyanateHCID 105034—

Reaction Conditions

Temperature175 °C

Reaction Steps

Zero point zero five part by mass of tetrabutylammonium bromide was added to 100 parts by mass of a bisphenol F type epoxy resin (Epiclon 830), and with stirring the mixture was heated to 175° C. Then, 20 parts by mass of toluene diisocyanate were supplied, taking 3 hours, and the mixture was further stirred at 175° C. for 4 hours, to obtain an isocyanate modification product of the bisphenol F type epoxy resin.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08658736B2
Source datasetuspto-grants-2014_02
ORD IDord-d6cc945dbb40411998a0bbb6c2b28f68
Source noteuspto-grants-2014_02