The aqueous adhesive compound which contains the adhesion grant resin emulsion and the adhesion grant resin emulsion

摘要

PPROBLEM TO BE SOLVED: To provide a tackifier resin emulsion which shows a favorable adhesive performance such as holding power at an elevated temperature and adhesive force to rough surfaces and shows a reduced occurrence of fogging phenomenon. PSOLUTION: The tackifier resin emulsion is obtained by emulsifying a polymerized rosin ester resin (A) having a softening point of 165-185°C and a ratio of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of 1.0-3.0. In the tackifier resin emulsion, the polymerized rosin ester resin (A) contains ≤1.5 wt.% components with molecular weight of ≤260. An aqueous adhesive composition containing the tackifier resin emulsion is also provided. PCOPYRIGHT: (C)2009,JPO&INPIT