Production of hollow plastic articles

Details Production of hollow plastic articles Production of hollow plastic articles

2005-05-17

2005-05-17

McDowell, Suzanne E. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

C264S515000, C264S545000, C264S146000, C264S152000

Reexamination Certificate

active

06893603

ABSTRACT:
The present invention relates to a process for producing hollow plastic articles, encompassing the following steps:a) producing a tubular plastic parison on a blow molding plant or coextrusion blow molding plantb) cutting open the extruded or coextruded plastic parison to give at least one semifinished open-surface productc) thermoforming the resultant semifinished open-surface product to give half-shellsd) welding the thermoformed half-shells to give a hollow article.

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