Glossy container
US10556371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2016 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Jul 27, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/712
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of blow molding a glossy article having at least one layer of thermoplastic material. The method comprises the steps of feeding a parison of said thermoplastic material into a mold having an inner surface with at least a portion of SPI finish standard selected from the group consisting of A-1, A-2, A-3, B-1, B-2 and B-3 mold and a first temperature of greater than 55° C.; blowing the parison against the inner surface of the mold to form the article; and subsequently lowering the temperature of the mold to a second temperature of between 10° C. to 55° C. before release of the molded article. The cycle time of the mold (tct) is less than 250 seconds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.