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US 2024/0301259 A1Published application
Polyurethane Adhesive Composition for Film Lamination
AssigneeHenkel AG & Co. KGaA
InventorsMarcel Blodau, Marcel Franken, Nina Jungholt, Andrea Eckstein, Pascal Wilkens
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Abstract
The present invention relates to a polyurethane adhesive composition for film lamination, in particular in food flexible packaging. Further, the present invention relates to method of manufacturing a laminate by using the polyurethane adhesive composition and the laminate obtainable by the described method.
Claims15
A polyurethane adhesive composition comprising:
- a polyol component comprising at least one polyester polyol obtained from a reaction mixture comprising, based on the total weight of the reaction mixture,
- from 1 to 25% by weight of at least one cycloaliphatic polyol,
- from 1 to 40% by weight of at least one heterocyclic polyol,
- from 1 to 40% by weight of at least one linear or branched aliphatic polyol, and
- from 30 to 70% by weight of at least one polyfunctional carboxylic acid, and
- an isocyanate component comprising the combination of at least one aliphatic or alicyclic isocyanate-functionalized compound and at least one hydrolyzable alkoxysilane compound having no epoxide group, and/or the reaction product of at least one aliphatic or alicyclic isocyanate-functionalized compound and at least one hydrolyzable alkoxysilane compound having no epoxide group.
3 more elements
Dependencies are inferred from the claim text.