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US 8,410,204 B2Granted
Hardener composition, adhesive system and method of gluing
AssigneeAkzo Nobel Coatings International B.V.
InventorsHans Ekblom, Sara Fäldt, Ingvar Lindh, Benyahia Nasli-Bakir
Life of this patent
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Abstract
The invention relates to a hardener composition for use in an amino resin based adhesive system, comprising an aliphatic alpha hydroxy- mono-, or di-, carboxylic acid, and polyvinyl alcohol. It also relates to an adhesive system and a method of gluing wooden materials.
Claims5
An adhesive system comprising a resin component which is an amino resin and a hardener component which is polyvinyl alcohol in an amount of from about 0.5 to about 25 weight % and an acid belonging to the group consisting of glycolic acid and malic acid.
Dependencies are inferred from the claim text.