Patent ID: 7892800

Claim:
Composite material with a specific density in the range of 0.8 g/cm 3 to 1.2 g/cm 3 , comprising: one or more grains of a non-metallic inorganic material with a specific surface area in the range of 10,000 m 2 /m 3 to 1,000,000 m 2 /m 3 , having a porosity in the range of 10% to 80% wherein at least 50% of the pores have a pore size in the range of 0.1 μm to 1000 μm, and wherein more than 50% of the grains have a grain size in the range of 0.1 mm to 50 mm; and one or more plastics particles with a specific density in the range of 0.6 g/cm 3 to 1.2 g/cm 3 , and a specific surface area in the range of 50 m 2 /m 3 to 1000 m 2 /m 3 , wherein more than 50% of the plastics particles have a particle size in the range of 0.01 mm to 100 mm.