Integrally blow-moulded bag-in-container comprising an inner layer and an outer layer comprising energyabsorbing additives, preform for making it and process for producing it
US9555572B2 · kind B2 · utility
8Cited by
27References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2008 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Feb 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to an integrally blow-moulded bag-in-container (2) and preform(1, 1′) for blow-moulding the bag-in-container. An inner layer (11) and an outer layer (12) are used, wherein the preform forms a two-layer container upon blow-moulding, and wherein the obtained inner layer of said container releases from the thus obtained outer layer upon introduction of a gas at a point of interface (14) between the two layers. At least one of the inner and outer layers includes at least one additive allowing both inner and outer layers to reach their respective blow-moulding temperatures substantially simultaneously.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.