| http://www.w3.org/ns/prov#value | - In general, however, compositions containing from about 10 to about 90, and especially from about 20 to about 80, parts by weight of poly(ethylene terephthalate) and from about 90 to about 10, and especially from about 80 to about 20, parts by weight of poly(1,4-butylene terephthalate) resins exhibit the best overall combination of properties and these concentrations are preferred.
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