Heatset high barrier container

Claim 1

A transparent hollow high barrier, thermally stable article obtained by blow molding and heatsetting an intimate fusion blend of a poly(ethylene terephthalate), and a high barrier copolyester formed of the polymeric reaction product of (A) reactant(s) selected from the group consisting of isophthalic acid, terephalic acid, and their C 1 to C 4 alkyl esters, and any mixture thereof in any proportion, (B) reactants, 1,3(2-hydroxyethoxy)benzene plus ethylene glycol, and optionally one or more other ester forming dihydroxy organic hydrocarbon reactant(s), and optionally, (C) reactant, bis(4-betahydroxyethoxyphenyl)sulfone, wherein: (1) the amount of said 1,3 bis(2-hydroxyethoxy)benzene is 5-90 mole percent of the amount of A reactants, (2) the combined amount of B and C reactant is about 110 to 300 mole percent of the amount of A reactants, (3) the amount of said other ester forming dihydroxy organic hydrocarbon reactant(s) is zero to 20 mole percent of the amount of said A reactants, and (4) the combined amount of said (C) reactant plus said 1,3 bis(2-hydroxyethoxy)benzene and said other ester forming dihydroxy organic hydrocarbon reactant(s) is not over 90 mole percent of said A reactants, said copolyester being present in an amount from about 20 percent to about 30 percent, by weight, of said article.