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US 10,385,512 B2Granted
Laminate production method
AssigneeFlooring Technologies Ltd.
InventorNorbert Kalwa
Life of this patent
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Abstract
A method for producing an impregnated article comprising a cellulose layer which is impregnated with a melamine resin in order for a core impregnation to be formed is characterized in that a layer of a liquid medium having a moiety of isocyanate groups is applied to the top face and/or the bottom face of the core-impregnated cellulose layer.
Claims17
A process for the production of a cellulose ply comprising:
- impregnating a core of the cellulose ply with a melamine resin to form a core-impregnation cellulose ply;
- and
- applying a layer made of a liquid medium having a proportion of isocyanate groups to at least one of an upper side and underside of the core-impregnated cellulose ply wherein the isocyanate groups react with either a α-cellulose in the core-impregnated cellulose ply or with the melamine resin.
Dependencies are inferred from the claim text.