Thiodiglycol → Urethane acrylate

Participants

Reaction Steps

354 g of tolylene diisocyanate are reacted with 220 g of hydroxyethyl acrylate and 0.2 ml of tin octoate. When the isocyanate value reaches 15.8%, the mixture is reacted with 36 g of thiodiglycol, 400 g of an ethoxylated trimethylolpropane (OH number 250) and 400 g of the compound according to Example 11. A self-cross-linking urethane acrylate resin is obtained which has a viscosity of 200 Pas after it has been mixed with 200 g of hexanediol-1,6-diacrylate, and when tested as a 20 μm film on paper under the conditions described above, it attains a reactivity of 30 m/min.

Provenance & Evidence