The present invention is directed to a resin composition superior in barrier
properties and also superior in flexibility, secondary processability and interlayer
adhesiveness. The present invention is also directed to an environmentally friendly
method for producing a resin composition, the method releasing no carboxylic acid
such as acetic acid to the peripheral environment. The invention provides an EVOH
resin composition (F) which has a content of an alkali metal salt (A), in terms
of the alkali metal, of 0.1 to 20 mol/g and a content of a carboxyl acid
or its salt (C), in terms of carboxylate radical, of 2 mol/g or less and
which has an ethylene content of 5 to 60 mol % and a saponification degree of from
80 to 99 mol %. In addition, the invention provides a resin composition comprising
the EVOH resin composition (F) and an EVOH having an ethylene content of 5 to 60
mol % and a degree of saponification of 99.2 to 100 mol %.
