OIL FROPLET IN WATER TYPE EMULSION OF ENERGY BEAM-CURING TYPE RESIN COMPOSITION AND HEAT SENSITIVE RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To obtain the subject emulsion useful for a heat sensitive recording medium excellent in record-traveling property and record-preserving property and having a high gross by incorporating a resin having an ethylenically unsaturated group and a specific hydrophilic resin. ;SOLUTION: This oil droplet in water type emulsion of an energy beam curing type resin composition is obtained by adding (A) a liquid obtained by dissolving or dispersing a hydrophilic resin of the formula [(m), (n) are each ≥1 on average] in water, to (B) a resin having an ethylenically unsaturated group [e.g.; trimethylolpropane tri(meth)acrylate] and emulsifying/dispersing by using a high speed agitator, etc. Preferably, (C) a filler (e.g.; powder of aluminum hydroxide) is incorporated to it by 0-50 wt.% based on the total weight of the resin composition. The component A preferably has ≥80% ethylene oxide group.;COPYRIGHT: (C)2000,JPO