Polymer coated wall covering material

Details Polymer coated wall covering material Polymer coated wall covering material

B - Operations, Transporting

32

B

B32B 27/04 (2006.01) B32B 1/04 (2006.01) B32B 3/02 (2006.01) B32B 5/02 (2006.01) B32B 27/12 (2006.01) B32B 27/20 (2006.01) C23C 16/00 (2006.01) D06N 3/04 (2006.01) D06N 7/00 (2006.01) E04F 13/00 (2006.01)

Patent

CA 2458937

A polymeric wall covering material (50) that is used to cover surface imperfections consists of a thermoplastic polymer (54) coated to the surface of a nonwoven fiber tissue or mat (52). The polymeric coating on the fiber tissue or mat reduces paint consumption as compared with traditional glass fiber wall coating materials. In another preferred embodiment, the polymeric material contains a mineral filler to improve adhesion of a paint to the polymeric surface. In addition, an opacifying agent may be added to the polymeric material to improve hiding and improve paint adhesion. Further, a surface structure may be embossed to the applied polymeric coating during extrusion to facilitate painting with a roller-type applicator. Finally, the polymeric surface formed on the fiber tissue or mat may be subsequently treated with a corona discharge treatment to increase surface energy and adhesion.

L'invention concerne un matériau de couverture (50) à paroi polymérique, utilisé afin de recouvrir des imperfections de surface, constitué d'un polymère thermoplastique (54) couché sur la surface d'un tissu ou d'un mat de fibres non tissées (52). Le revêtement de polymère sur le mat ou le tissu de fibres permet de réduire la quantité de peinture à utiliser en comparaison des matériaux de revêtement de paroi en fibres de verre classiques. Dans un autre mode préféré de réalisation, le matériau polymérique contient une charge minérale afin d'améliorer l'adhérence d'une peinture à la surface polymérique. En outre, il est possible d'ajouter un agent opacifiant au matériau polymérique afin d'améliorer le couvrant et l'adhérence de la peinture. Il est possible, aussi, de gaufrer une structure de surface sur le revêtement polymérique appliqué, lors de l'extrusion, afin de faciliter la peinture avec un applicateur de type rouleau. Il est possible, enfin, d'appliquer un traitement de décharge corona sur la surface polymérique formée sur le tissu ou sur le mat de fibres, afin d'améliorer l'énergie de surface et l'adhérence.

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