Basell Polyolefine Gmbh

Jörg Meyer

Wolfgang Rohde

Bernhard Springholz

Rainer Sattel

Jörg Schnorr

Andreas Wüst

Roger Weinlein

The present invention relates to a multistage process for producing hollow plastic articles, encompassing the following steps:

Multistage process for producing hollow plastic articles from half shells

The invention relates to a device for partitioning the plastic parisons to give at least one semifinished open-surface product (), where the device encompasses at least one means of partitioning () the plastic parison and one means of drive (). The means of drive may be composed of one, but preferably of two, driven rolls. It has been found that use of the device of the invention can reduce or prevent the production of creasing and irregularity at the margins, i.e. at the cut edges, of the partitioned parisons, i.e. of the resultant semifinished sheets.

Guiding of a cut-open parison

Growing community of inventors

Dannstadt-Schauernheim, Germany

Jörg Meyer