Antistatic layered panel and method of its manufacture
First Claim
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1. Method for manufacturing a layered floor panel;
- said floor panel comprising a substrate, one or more layers on top of said substrate and at least one backing layer underneath said substrate, said substrate being a glued and pressed wood-based board comprising a material selected from the group consisting of MDF, HDF, particle board, oriented structural board and multiplex;
said one or more layers at least comprising a wear resistant surface layer filled with wear resistant additives as a top layer and a decorative covering layer;
said wear resistant surface layer and said decorative covering layer extending over substantially the whole surface of the panel;
at least one of said wear resistant surface layer and said decorative covering layer including a resin impregnated paper layer, said wear resistant surface layer and said decorative covering layer being substantially free from conductive fillers in the form of fibers;
said floor panel containing at least one antistatic agent distributed in said resin;
wherein the method at least comprises the steps of;
dosing and mixing said antistatic agent into the impregnating composition for said resin impregnated paper layer;
impregnating said paper layer, thereafter drying said resin impregnated paper layer;
and thereafterstacking at least said wear resistant surface layer, said decorative covering layer, said substrate and said backing layer upon each other and consolidating said layers and substrate to form a plate-shaped direct pressure laminate (DPL) by means of hot pressing.
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Abstract
The invention relates to an antistatic layered panel (1) including a substrate (2) and one or more layers (3, 4) on top of said substrate, said one or more layers comprising a decorative covering layer (3). At least one of the layers on top of said substrate comprises a synthetic resin and is consolidated by pressure with one or more of the other layers. The panel contains at least one antistatic agent evenly distributed in said synthetic resin over the surface of the panel.
The invention relates also to methods of its manufacture and in particular to such antistatic laminated floor panels.
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Citations
10 Claims
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1. Method for manufacturing a layered floor panel;
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said floor panel comprising a substrate, one or more layers on top of said substrate and at least one backing layer underneath said substrate, said substrate being a glued and pressed wood-based board comprising a material selected from the group consisting of MDF, HDF, particle board, oriented structural board and multiplex; said one or more layers at least comprising a wear resistant surface layer filled with wear resistant additives as a top layer and a decorative covering layer; said wear resistant surface layer and said decorative covering layer extending over substantially the whole surface of the panel; at least one of said wear resistant surface layer and said decorative covering layer including a resin impregnated paper layer, said wear resistant surface layer and said decorative covering layer being substantially free from conductive fillers in the form of fibers; said floor panel containing at least one antistatic agent distributed in said resin; wherein the method at least comprises the steps of; dosing and mixing said antistatic agent into the impregnating composition for said resin impregnated paper layer; impregnating said paper layer, thereafter drying said resin impregnated paper layer; and thereafter stacking at least said wear resistant surface layer, said decorative covering layer, said substrate and said backing layer upon each other and consolidating said layers and substrate to form a plate-shaped direct pressure laminate (DPL) by means of hot pressing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification