Decorative surface covering comprising carbon-based porous filler dispersed in polymer matrix
AssigneeTarkett GDL
InventorsGuillaume CHATTE, Carlos Eloy FEDERICO
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Abstract
Carbon-based porous filler (CPF) is proposed for incorporation into thermoplastic material, e.g., of a decorative surface covering. It has been recognized that CPF with a carbon content of at least 70% of the CPF dry weight and a specific surface area of 5 to 500 m2/g measured in accordance with standard ISO 9277:2010 (Brunauer-Emmett-Teller (BET) method) may confer advantageous mechanical properties on the thermoplastic material, in particular reduced density (compared to conventional fillers) and higher than expected specific stiffness.
Claims22
A decorative surface covering, e.g., a floor covering, a wallcovering or a ceiling covering, comprising a core layer, wherein the core layer comprises a thermoplastic material including one or more thermoplastic polymers as a matrix and a carbon-based porous filler (CPF) dispersed in the matrix, wherein the CPF has a carbon content of at least 70% of the dry weight and a specific surface area of 5 to 500 m2/g, measured in accordance with standard ISO 9277:2010 (Brunauer-Emmett-Teller (BET) method).
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Dependencies are inferred from the claim text.