1,1,1-Trimethylolpropane diallyl ether

1,1,1-Trimethylolpropane diallyl ether (CAS 682-09-7) is a trifunctional allyl ether monomer commercially available under the trade names T 20 and Neoallyl T 20. It carries no assigned E-code and is classified under HS code 29094990 within the broader category of monomers and building blocks.

In UV- and peroxide-cured polymer systems, the compound acts as a reactive cross-linker by incorporating multiple allyl groups that participate in radical polymerization, building network density and improving mechanical cohesion. Formulators in coatings and adhesive applications use it to control crosslink density, while in elastomer compounding it contributes flexibility by acting as a plasticizing co-monomer within the cured network.

The product is supplied as a viscous liquid and falls under REACH registration requirements for commercial quantities within the EU. Buyers should confirm available packaging formats and lot-specific purity specifications directly with the supplier, as grade offerings may vary by production batch.