Patent · US Active

Polyurethane lamination adhesive

US9458363B2 · kind B2 · utility

3Cited by

10References

16Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Guido Kollbach · Apex, US
Rene Sauer · Düsseldorf, DE

Key dates

Filing date	Jun 12, 2009
Grant date	Oct 4, 2016
Priority date	—
Expiry date	Aug 27, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G18/7671
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to a polyurethane adhesive for laminating films. The adhesive contains at least one NCO-reactive polyurethane prepolymer and/or polyisocyanates and a compound having a molecular weight below 2000 g/mol and containing at least one functional group reactive with primary amino group selected from an epoxide groups, (meth)acrylic groups or carboxylic anhydride group. The adhesive is particularly well suited for multilayer films, especially for laminating foodstuffs or medical packaging.

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