| abstract |
The present invention provides a tackifier resin emulsion that improves the stability against mechanical shear of a gear pump or the like. SOLUTION: (a) a tackifier resin, (b) an anionic polymer emulsifier, (c) a salt of a rosin, an alkenyl succinic anhydride having an alkenyl group having 8 to 22 carbon atoms, and a carbon number of 8 It is a tackifier resin emulsion containing at least one selected from alkenyl succinic anhydrides having alkenyl groups of -22, preferably (b) anionic polymer emulsifier is styrenes, (meth) acrylic acid A tackifier resin emulsion which is a salt of a polymer obtained by copolymerizing an alkyl ester and an anionic monomer. |