Disclosed are a granular or powdery diacetal composition comprising (A)
a diacetal such as 1,3:2,4-O-dibenzylidene-D-sorbitol, (B) a sulfuric ester salt
and (C) an aliphatic monocarboxylic acid, components (B) and (C) being uniformly
dispersed in the particles of the granular or powdery diacetal composition, and
component (B) being present in a proportion of 0.1 to 3 wt % and component (C)
being present in a proportion of 0.3 to 5 wt %, and the total amount of component
(B) and component (C) being not more than 7 wt %, based on the diacetal composition;
a polyolefin resin composition comprising the diacetal composition and a polyolefin
resin; a process for preparing the resin composition; and a molding prepared by
molding the polyolefin resin composition.
