Kowa American Corporation


Caprolactone-modified tris(2-acryloxyethyl) isocyanurate

NK ESTER A-9300-CL (Caprolactone-modified tris(2-acryloxyethyl) isocyanurate) is a compound where the tris(2-acryloxyethyl) isocyanurate (THEICTA) is modified to include a linear caprolactone spacer on one of the 3 acrylate branches to make this monomer a liquid at room temperature making it easier to disperse this monomer into Radcure formulations with other monomers and oligomers.  The high Tg and isocyanurate base greatly improves the temperature resistance of the finished product and strong crosslinking ability forms a hard finished coating or  3D items with better impact resistance than the THEICTA itself.

This compound finds applications in various fields such as 3D printing, photopolymer materials, adhesives, coatings, and optical materials.

Chemical Structure

Chemical Structure


CAS#: 40220-08-4 & 99394-03-3


  • Heat Resistance
  • High Tg
  • Low Viscosity


  • 3D printing ink
  • coatings
  • Adhesives
  • Cross-linker