Back to results
US 11,965,119 B2Granted
Sulfone-resin containing gas-barrier adhesive
AssigneeHenkel AG & Co. KGaA
InventorsHanns Misiak, Daniela Neitzke, Christina Huebner, Ligang Zhao, Hans-Georg Kinzelmann, Vanessa Alexandra Picon Miranda
Life of this patent
Estimating the term…
Abstract
The invention relates to a composition comprising a sulfone-group containing resin obtainable by reaction of a polyamine containing at least one sulfone-group with a polyepoxide and optionally a hardener, as well as adhesives and coating compositions comprising said compositions having gas-barrier properties, methods for bonding substrates using said adhesives and the thus obtained articles as well as the use of the compositions described herein as adhesive or coatings having gas-barrier properties.
Claims12
A composition comprising:
- (A) a resin component comprising an oligosulfone prepolymer obtained by reacting
- (A1) at least one sulfone-group containing polyamine with
- (A2) at least one polyepoxide,
- wherein the oligosulfone prepolymer is a compound of Formula (Ia) or (Ib)
- wherein n is 2 to 6;
- and
- (B) optionally a hardener component comprising one or more of a polyisocyanate
- (B1), polyepoxide (B2), and polyamine (B3),
- wherein the molar ratio of primary amino groups in component A1 to epoxy groups in component A2 ranges from 0.5:1 to 1:0.5.
6 more elements
Dependencies are inferred from the claim text.