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US 9,610,757 B2Granted
Adhesive bond using different adhesives
AssigneeHenkel AG & Co. KGaA
InventorsJurgen Lorenz, Helga Garmann, Hermann Weidmann, Matthias Baust
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Abstract
A method for adhesively bonding shaped elements made from wood-based materials to flexible film substrates, in which i) the side that is to be bonded is mechanically processed, ii) a reactive one- or two-component polyurethane adhesive is applied to the center regions of this side, iii) an aqueous adhesive based on EVA, PVAc, PVOH is applied at least to the outer region of this side, and iv) this side is bonded to a flexible substrate as an edge coating.
Claims9
A method for adhesively bonding a shaped elements made from wood-based materials to flexible film substrates, comprising:
- providing the shaped element which is to be adhesively bonded, the shaped element having a side including an outer region surrounding a center region,
- wherein the shaped element is mechanically processed,
- applying a reactive one- or two-component polyurethane adhesive to only the center region of the side,
- applying an aqueous adhesive based on ethylene vinyl acetate (EVA), polyvinyl acetate (PVAc), polyvinyl alcohol (PVOH) to at least the outer region of this side, and bonding the side adhesively to the flexible substrate as an edge coating.
1 more element
Dependencies are inferred from the claim text.