Patent · US Active

Lid for closing a cup

US8816248B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

Constantia Teich GmbH

Inventors

Martin Kornfeld · Klosterneuburg, AT
Lambert Nekula · Pöchlarn, AT
Alfred Wegenberger · Langenlois, AT
Adolf Schedl · Lilienfeld, AT
Franz Reiterer · Getzersdorf, AT

Key dates

Filing date	Dec 27, 2010
Grant date	Aug 26, 2014
Priority date	—
Expiry date	Dec 27, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31909
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A lid (2) for closing a cup (1) along a peripheral sealing edge (10) and a method for producing such a lid. The lid includes at least one aluminum film and an optionally multi-layered plastic layer which is co-extruded onto the aluminum film and has a closed predetermined tearing line (3). The plastic layer is made of plastic based on polyethylene (PE) or plastic based on polypropylene (PP), and the predetermined tearing line is introduced into the plastic layer preferably by means of a CO2 laser. The predetermined tearing line (3) may be provided directly in the region of the sealing edge (10).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.