| 摘要 |
<p>A multi-layer preform (90), includes: a) a plastic inner liner (10), comprised of a cylindrical walled body, which may or may not include a tapered annular shoulder portion, and a cylindrical walled neck portion extending upwardly from the body (88), and b) a molded outer layer (80). Prior to the outer layer being molded over the plastic inner liner, at least a portion of the liner is crystallized by a heat treatment process (84). The molded outer layer may include a means to receive a closure device (86). When the preform is at an acceptable temperature range for orientation, the multi-layer preform can be blow-molded to form a multi-layer container having improved properties.</p> |
