| 摘要 |
NEW MATERIAL:A di(meth)acrylic acid ester shown by formula I (R is H or CH3; average value of n is 1-50). USE:A readily handleable liquid having relatively low viscosity at normal temperature and useful as a vehicle for ultraviolet-curing type or electron ray curing type printing ink or coating compound having excellent flexibility and improved curing properties. PREPARATION:A carbonate diol shown by formula II is reacted with acrylic acid or methacrylic acid preferably in the presence of a polymerization inhibitor at 50-130 deg.C, preferably 65-90 deg.C to give a compound shown by formula I readily polymerizable in the presence of heat, ultraviolet light, ionization, radiation or radical initiator. The compound shown by formula II is obtained by subjecting 3-methyl-1,5-pentanediol to ester interchange reaction with a diaryl carbonate or dialkyl carbonate.
|
