Abstract: Provided is a composite of saponified product of an ethylene-vinyl ester-based copolymer from which films excellent in gas barrier properties and film rigidity and highly inhibited from having fish eyes are obtained. It is a process for producing a composite of saponified product of an ethylene-vinyl ester-based copolymer, which comprises: mixing a composition (a) containing a saponified product of ethylene-vinyl ester-based copolymer (A1) and having a moisture content of 50% by weight or higher with a water-swellable layered inorganic compound (B) to obtain a composition (C); and mixing the composition (C) in the state of having a moisture content of 10% by weight or higher and less than 60% by weight with a saponified product of ethylene-vinyl ester-based copolymer (A2).

Abstract: A resin composition prepared by melt-mixing (A) a hydrolyzed ethylene-vinyl acetate copolymer having a water content of 20 to 50% by weight and (B) a water-swellable inorganic compound having a layer structure in an extruder under the condition of 200<R×W<8,000 wherein R is a residence time (second) of (A) and (B) in the extruder from the introduction of both (A) and (B) into the extruder up to the extrusion thereof from the extruder, and W is a consumed electric power (kW) of the extruder.