Tackifying resin composition, the aqueous tackifier resin emulsion preparation and water-based tacky adhesive composition of the emulsion

摘要

PROBLEM TO BE SOLVED: To provide a tackifying resin emulsion having good storage stability and high softening point, giving excellent heat-resistance, adhesive power and cohesive power compared with conventional tacky/adhesive agent and safely producible in high yield without using an organic solvent.;SOLUTION: The tackifying resin composition contains a specific reaction product obtained by the thermal reaction of (A) 1-35 wt.% acrylic resin having a glass transition temperature (Tg) of -80 to 0°C and a weight-average molecular weight of 1,000-100,000 with (B) 65-99 wt.% rosin ester having a softening point of 135-180°C.;COPYRIGHT: (C)2007,JPO&INPIT