POLYOLEFIN DISPERSION TECHNOLOGY USED FOR RESIN COATED SAND Russian patent published in 2011 - IPC C08K9/08 C09C3/10 C09C1/28 C08J3/21 E01C13/08 

FIELD: chemistry.

SUBSTANCE: particulate material contains a particulate substrate having size of 0.1-3 mm and a dispersion which covers at least 50% of the surface of the particulate substrate. At the time of application onto the particulate substrate, the dispersion contains a thermoplastic olefin polymer, a dispersion medium and a stabilising compound. The dispersion medium is selected from a group comprising organic solvent, water and combinations thereof. Particulate materials meant for applying coating in form of a polymer cladding, may include mineral granular materials and sand.

EFFECT: polymer coated particulate materials obtained using the invention provide lasting wear resistance due to low surface roughness, and may be useful as filler for other fields of using artificial grass, such as golf courses and landscaping, and in insulating layers for damping vibrations and noise.

23 cl