Patent · US Expired

Heat-laminatable, gas-barrier multi-layer films

US5126198A · kind A · utility

27Cited by

5References

8Claims

0Family size

Assignee

Wolff Walsrode AG · DE

Inventors

Ingo Schinkel · Walsrode, DE
Ulrich Reiners · Neuenkirchen, DE

Key dates

Filing date	Dec 8, 1989
Grant date	Jun 30, 1992
Priority date	—
Expiry date	Dec 8, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31928
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Improved heat-laminatable multi-layer film containing a polypropylene base layer, a heat-laminatable layer containing an ethylene/vinyl acetate copolymer and an ethylene/ethyl acrylate or ethylene/acrylic acid copolymer, one layer of the film being a gas barrier layer.

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