Patent · US Active

Oxygen and water vapour barrier films with low moisture sensitivity fabricated from self-cross-linking fibrillated cellulose

US10384424B2 · kind B2 · utility

0Cited by

0References

16Claims

0Family size

Assignee

BILLERUDKORSNAS AB · SE

Inventors

Per-Olof Larsson · Helsingborg, SE
Lars Wagberg · Kungsängen, SE

Key dates

Filing date	Sep 5, 2014
Grant date	Aug 20, 2019
Priority date	—
Expiry date	Oct 27, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L2205/16
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

There is provided a package material comprising an oxygen barrier polymer film, wherein the film comprises a polymer obtainable by a process comprising the steps of: a) oxidizing cellulose fibers to ultimately obtain cross-linked cellulose; and b) homogenizing the product of step a) to obtain fibrils in a width range of 1 nm to 150 nm. A corresponding use is also provided.

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