PACKAGE CONTAINING VESSEL MADE FROM TEREPHTHALIC ACID* P*P* SULFONYLDIBENZOIC ACID* ETHYLENE GLYCOL AND NEOPENTYL GLYCOL POLYESTER COMPOUND

摘要

Copolyesters having an oxygen permeability of less than 15 cc. mil/100 in..sup.2 ·day·atm. (at 50% relative humidity and about 73° F.) and a glass transition temperature in excess of 72° C. and having the following four (4) repeating units are contemplated: ##STR1## Based on reactant charges the ratio of (b) units: (a) units will be about 90:10 to about 40:60. Containers made of these polyesters for packaging products of commerce like comestibles are also contemplated.