Patent · US Active

Film laminate comprising a sealing layer

US10611535B2 · kind B2 · utility

0Cited by

1References

23Claims

0Family size

Assignee

CONSTANTIA PIRK GMBH & CO. KG · DE

Inventors

Achim Grefenstein · Altrip, DE
Werner Geitner · Idar-Oberstein, DE
Ingo Geillersdörfer · Mantel, DE

Key dates

Filing date	Jan 26, 2016
Grant date	Apr 7, 2020
Priority date	—
Expiry date	Aug 1, 2036

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2323/06
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

In order to improve the sealing properties and the sliding properties of a sealing film, it is provided that surface structures are provided on a first side of the sealing film, wherein the largest thickness of the sealing film is at least 10% greater than the smallest thickness of the sealing film, and the largest lateral extension of the surface structures is smaller than 500 μm and a slip additive is added to the sealing film in an amount that yields an S-value of less than 10,000, and preferably less than 5,000.

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