| abstract |
The invention relates to flame-retardant, flanked chipboard, especially with wood veneers or laminate planked panels. The invention should be produced in good quality flame retardant planked chipboard in good quality, the Flammfestausruestung is gleichmaessig and a binding according to the requirements and strength values of the finished products is guaranteed. According to the invention, this is achieved by the fact that they consist of a) after the extrusion of wood chips and / or woody fibers produced chipboard, as a flame retardant additive in a concentration of about 5 to 50 wt .-%, based on dry wood chips and / or woody Fibers, a product of1) from 50 to 99.5% by weight of a physically and chemically stable flame retardant under the conditions of the extrusion process and 2) from about 0.5 to 50% by weight of a hydrogenated, waterless synthetic resin encapsulating the individual flame retardant particles. as well as binders and optionally hardeners and / or further additives such as lubricants, b) glued by means of special adhesive on the chipboard, to their planking suitable cover or Absperrfurnieren of wood or laminates and c) optionally a surface layer of a flame resistant paint. |