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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 34683Generated: October 26, 2026

1,3-Butanediol → Diisocyanate Diurethane

https://huagongshe.com/reaction/34683

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-ButanediolHCID 7896—
ReactantToluene 2,4-DiisocyanateHCID 11443—
ProductDiisocyanate DiurethaneHCID 86739092—

Reaction Steps

About 348 parts of toluene diisocyanate are mixed with 90 parts of 1,3-butylene glycol and reacted at 30° C. to form a diurethane diisocyanate. About 260 parts of hydroxyethyl methacrylate are added to the resultant diurethane diisocyanate and the mixture heated at 50° C. until the --NCO content is zero.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04762887
Source datasetuspto-grants-1988_08
ORD IDord-4ac42ee506ea4e9983a87d419018aa3c
Source noteuspto-grants-1988_08