Polyfoil tube made from semi-rigid or rigid foil materials
US9242767B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2009 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Aug 31, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A preferably air-tight and liquid-tight collapsible container comprises a container body (5) formed of a sheet material, said sheet material having two thermoplastic surfaces (2, 3), said sheet material comprising a preferably fluid-tight carrier foil (1) provided at least on and preferably on both sides (2, 3), with a thermoplastic semi-rigid or rigid layer material, preferably a polyester based material said sheet material being folded to a container-like body and sealed in the overlapping edge regions (6, 7) to form a container-like body, said container-like body being coated with a sheathing (9) of elastomeric thermoplastic material of the same kind or type as the foil material to form a container body (5), said container body (5) being provided at one open end (5a) with a container head formed from thermoplastic material of the same kind or type as the foil material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.