Method for producing expanded polypropylene resin particles, expanded polypropylene resin particles, and expanded molded article in polypropylene resin mold

摘要

An object of the present invention is to efficiently obtain expanded polypropylene resin particles capable of providing an expanded molded article in a polypropylene resin mold having excellent quality. (A) a polypropylene resin particle containing a predetermined amount of an aliphatic diethanolamine fatty acid ester and / or an aliphatic diethanolamine, (b) water, and (c) a silicate each containing a predetermined amount, and the pH is within a predetermined range. Provided are a dispersion and a method for producing expanded polypropylene resin particles using an inorganic foaming agent.