| http://www.w3.org/ns/prov#value | - In one embodiment, a ???heat-set??? fiber or other article comprising a thermoplastic polymer has been stretched under a biasing force, heated to at least the lowest temperature at which at least a portion of the crystallites of the polymer are molten (hereinafter the ???heat-set temperature???)r, cooled to below the heat-set temperature, and then the biasing force removed.
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