Foil for providing a peel-seal valve, package comprising the foil, and method of manufacturing the foil

US8720729B2 · kind B2 · utility

Assignee

• MONDI AG · AT

Inventors

• Gyula Madai · Budapest, HU
• Jan-Torsten Vollmer · Annaberg-Buchholz, DE
• Melinda Budai · Wien, AT
• Michael Seeber · Highlands, US
• Bernhard Mumelter · Kufstein, AT

Key dates

• Filing date: Oct 13, 2009
• Grant date: May 13, 2014
• Expiry date: Oct 13, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D2205/00
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A foil made of two plastic films and an adhesive layer laminating the two films together, wherein the first plastic film has a first side and a second side and comprises punctures therebetween. The foil is of a dual peel-seal type such that the first plastic film realizes a first peel-able seal within the foil at its first side in the form of an adhesion peel seal in an open state and/or in the form of a cohesion peel seal in a sealed state, and wherein the adhesive layer leaves open the punctures such that gas can penetrate through the punctures in-between the two films towards the first peel-able seal.