Adhesive for bonding decorative melamine treated paper to...

C - Chemistry – Metallurgy – 09 – J

Patent

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C09J 131/04 (2006.01) B32B 29/04 (2006.01) C09J 11/00 (2006.01) C08L 3/02 (2006.01) C08L 29/04 (2006.01)

Patent

CA 2211670

Polyvinyl acetate emulsion based adhesives can be made effective for bonding melamine formaldehyde resin treated decorative solid color and print paper to particle board. This polyvinyl acetate emulsion based adhesive is formulated with tackified polyvinyl alcohol, starch, a tackifier and a coupling agent. Stress cracking is substantially eliminated. Additionally, wrinkling and edge and corner peel resulting during the movement of sheets of melamine resin treated paper on the top and bottom surfaces of sheets of particle board through a heating and pressing zone is substantially eliminated.

Des adhésifs à base d'émulsion de poly(acétate de vinyle) peuvent être rendus efficaces pour coller du papier décoratif imprimé ou de couleur unie traité à la résine mélamine-formaldéhyde sur des panneaux de particules. Cette émulsion d'adhésif à base de poly(acétate de vinyle) est formulée avec un poly(alcool de vinyle) rendu collant, de l'amidon, un agent collant et un agent de couplage. Les fissures de contrainte sont substantiellement éliminées. De plus, le plissement et le décollement, le long de la bordure et dans les coins des surfaces supérieure et inférieure des panneaux de particules, causés par le déplacement des feuilles de papier traité à la résine de mélamine dans une zone de chauffage et de pressage sont substantiellement éliminés.

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