2-Hydroxyethyl acrylate → Urethane acrylate

Participants

Reaction Conditions

Reaction Steps

The same reaction vessel as that used in synthesis example 1 was charged with 444.6 parts by mass (2 moles) of IPDI and 900.0 parts by mass (1 mole) of aromatic polyester diol (weight-average molecular weight: 900, YG-108 (trade name), manufactured by ADEKA Corporation), and 0.27 parts by mass of tin octylate was added thereto with stirring. The temperature inside the reaction vessel was raised to 85° C., followed by reaction for 2 hours. Subsequently, 232.3 parts by mass (2 moles) of 2-hydroxyethyl acrylate, 0.79 parts by mass of methoquinone, and 0.63 parts by mass of tin octylate were charged to the reaction vessel, followed by mixing. The temperature in the reaction vessel was raised to 85° C. under bubbling with air, followed by reaction for 2 hours. Subsequently, the reaction mixture was cooled to obtain urethane acrylate imparted with fixability. This urethane acrylate imparted with fixability had a weight-average molecular weight of 5000.

Provenance & Evidence