Process for the production of oriented hollow bodies
US4317793A · kind A · utility
14Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1980 |
| Grant date | Mar 2, 1982 |
| Priority date | — |
| Expiry date | Aug 14, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2949/28
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for producing molecularly oriented hollow bodies of thermoplastic material presenting an accurately dimensioned orifice collar, by blow molding a preform in a manner to produce the orifice collar in its definitive form and, after thermally conditioning the preform, finally blow molding the desired final hollow body while forming the lower molded part of the neck below the orifice collar. This process permits the production of oriented hollow bodies with which a closure member can form an effective seal, and which can therefore be used for packaging carbonated beverages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.