PURPOSE: To obtain an compounded composition which can give an adhesive excellent in initial tack, bonding strength, water resistance, etc., by mixing a specified modified polyvinyl alcohol with an aqueous emulsion and a polyisocyanate compound.
CONSTITUTION: A modified polyvinyl alcohol comprising structural units represented by the formula (wherein n is an integer of 2-20) is mixed with an aqueous emulsion and a polyisocyanate compound. An adhesive containing the obtained compounded composition is desirable. A wooden article obtained by bonding with this adhesive is more desirable. Examples of the aqueous emulsions include aqueous emulsions prepared by emulsion-polymerizing ethylene, vinyl acetate, an acrylic ester, etc., and aqueous emulsions, such as polyurethane emulsions, obtained by postemulsifying polymers. Examples of the polyisocyanate compound include tolylene diisocyanate and triphenylmethane triisocyanate.
KUSUFUJI TAKESHI
FUJIWARA NAOKI
SATO TOSHIAKI
