| http://www.w3.org/ns/prov#value | - The poly(1,4-alkylene terephthalate) resins can contain mixtures thereof, including copolyesters, i.e. esters that contain a minor amount, e.g. from about 0.5 to about 2% by weight, of repeating units derived from an aliphatic or another aromatic dicarboxylic acid and/or another aliphatic diol or polyol.
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