Injection orientation blow molding method
US5364585A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1992 |
| Grant date | Nov 15, 1994 |
| Priority date | — |
| Expiry date | Oct 27, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2623/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A molding method for continuously carrying out the steps from injection molding of a synthetic resin preform to orientation blow molding thereof into a thin-wall-hollow molded article, characterized in that releasing of the preform from the injection mold is carried out during the state where the shape thereof can be maintained by a skin layer produced at the surface by quick cooling and the state where internal cooling is not yet finished and the temperature is high, and orientation blow molding of the preform is carried out within a time till a surface temperature of the preform which rises by its own internal temperature reaches a peak temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.