Carbamic acid, ethyl ester → Urethane acrylate

Participants

Reaction Conditions

Reaction Steps

In a reactor provided with a stirrer, 600 parts by weight isopropanol was heated to 82° C. A monomer/initiator mixture was made containing 210 parts acrylic acid, 90 parts of a urethane of a,a,-dimethyl meta-isopropenyl ethanol benzyl isocyanate and a (C16-18)alkoxy(ethyleneoxy)19ethanol, and 4.8 parts Lupersol 11. Five minutes before the monomer/initiator feed began, 1.2 parts Lupersol 11 were added to the 82° C. isopropanol. The monomer/initiator mixture was then metered in over 2 hours, with the reactor contents kept at 82° C. Thereafter, the reactor contents were heated at 82° C. for a further 30 minutes, then cooled.

Provenance & Evidence