RESIN COMPOSITION, PROCESS FOR ITS PRODUCTION AND USE THEREOF

摘要

A resin composition comprising 25 to 95 wt% of polycaprolactone (A) and 5 to 75 wt% of polyvinyl alcohol (B) (with the proviso that the sum total of (A) and (B) is 100 wt%), characterized in that the polyvinyl alcohol (B) is dispersed in the matrix of the polycaprolactone (A) in the form of particles having diameters of 2 mm or below; a process for the production of the resin composition by kneading a mixture of polycaprolactone (A) and polyvinyl alcohol (B) at a temperature which is the melting temperature of the polycaprolactone (A) or above but below the melting temperature of the polyvinyl alcohol (B); and cores for footwear, produced by molding the resin composition. The invention enables one−step production of the above resin composition and can give cores for footwear which can be bonded by heat reactivation without any organic solvent.