Integrally blow-moulded bag-in-container comprising an inner layer ad an outer layer comprising energy absorbing additives, preform for making it and process for producing it
US10668659B2 · kind B2 · utility
4Cited by
28References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2017 |
| Grant date | Jun 2, 2020 |
| Priority date | — |
| Expiry date | Apr 11, 2038 |
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 the 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.