Patent ID: 7662470

Claim:
Method to obtain coating of particles with a carrier, substantially covering the entire surface of said particles to form an agglomerate, the agglomerate being an additive for moulding thermoplastic polymers or paints, where the agglomerate is one of chips, flakes, powder or paste, the method comprising providing said particles to be organic and the carrier to have grains, the method further comprising mixing the particles with the carrier in powder form to obtain a mixture, said mixing taking place at a temperature near but lower than the melting point of said carrier, in order to cause the grains of the carrier to stick to the surface of the particles by forming physical bonds, said particles to be organic being made of polyurethane, or of a cellulose, polyamide, acrylic or urea organic type, said particles to be organic being coated prior to agglomeration, said physical bonds being van der Waals bonds.