Patent · US Active

Composite film

US9790010B2 · kind B2 · utility

1Cited by

7References

14Claims

0Family size

Assignee

AMCOR FLEXIBLES SINGEN GMBH · DE

Inventors

Christoph Dietrich · Herborn, DE
Klaus Hafner · Mühlheim an der Donau, DE
Sven Bauer · Vaterstetten, DE

Key dates

Filing date	Feb 20, 2012
Grant date	Oct 17, 2017
Priority date	—
Expiry date	Feb 12, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65D2401/15
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A composite film for closing a container by sealing the composite film against a circumferential sealing surface of the container or of a cap ring to be connected to the container has a support layer made of a metal film and a sealing layer connected to the metal film. The sealing layer comprises a coextruded layer with a cohesively breaking intermediate layer and adhesion promoter layers arranged on both sides of the intermediate layer. The composite film is suitable for tight sealing against sealing surfaces made of polished tinplate.

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