Patent · US Active

Composite film

US10370164B2 · kind B2 · utility

0Cited by

11References

11Claims

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	Sep 8, 2017
Grant date	Aug 6, 2019
Priority date	—
Expiry date	Sep 8, 2037

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.