Patent · US Active

Coated polymer foils with oxygen barrier properties

US9574100B2 · kind B2 · utility

0Cited by

21References

19Claims

0Family size

Assignee

BASF SE

Inventors

Ines Pietsch · Speyer, DE
Axel Weiss · Wilmington, US
Kathrin Michl · Ludwigshafen, DE
Peter Preishuber-Pflügl · Ludwigshafen, DE
Theo Smit · Heidelberg, DE

Key dates

Filing date	Jun 19, 2012
Grant date	Feb 21, 2017
Priority date	—
Expiry date	Jan 2, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31938
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A coated polymer foil is described and can be produced via coating of a polymer foil with an aqueous composition comprising (A) a polymer which is obtained via free-radical polymerization and which is composed of from 10 to 80% by weight of a compound selected from ethylenically unsaturated anhydrides and ethylenically unsaturated dicarboxylic acids, the carboxylic acid groups of which can form an anhydride group, and (B) an alkanolamine having at least two hydroxy groups. The coating gives the polymer foil an oxygen barrier and can in particular be used for producing packaging.

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