LEICHTGEWICHT-FLASCHEN UND VERFAHREN ZU DEREN HERSTELLUNG

摘要

The present invention discloses a process comprising forming a preform with planar stretch ratios greater than about 14 from a polyester having a natural stretch ratio which is substantially matched to the preform planar stretch ratio at processing conditions; and stretch blow molding said preform to produce a container. Suitable natural stretch ratios include those greater than about 13 at 210 DEG F. The desired natural stretch ratios and desirable final container properties are achieved by balancing the appropriate I.V. and copolymer modification.