| 摘要 |
PCT No. PCT/DE96/00733 Sec. 371 Date Oct. 24, 1997 Sec. 102(e) Date Oct. 24, 1997 PCT Filed Apr. 26, 1996 PCT Pub. No. WO96/33857 PCT Pub. Date Oct. 31, 1996A truncated cone is disclosed for molding bottoms of plastic containers, such as PET bottles, into geometries which extend convexly inwardly, are thermostable during hot-washing, and allow substantially full visual inspection with minimum shadow effects. The truncated cone is in the form of a frustoconical bottom insert, which, in a first blow-molding step, creates an intermediate container with a bottom geometry having a substantially wavy cross section. The wavy cross section of the bottom geometry can be accentuated by means of a second mold with a plateau, which creates a slight, upper domed surface in the bottom geometry of the container molded thereby.
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