FREE FLOWING COATING PARTICLES, PRODUCTION METHOD AND USE THEREOF Russian patent published in 2012 - IPC C09K8/80 B22C1/22 B32B5/16 E21B43/267 

FIELD: chemistry.

SUBSTANCE: free flowing coated particles, having size ranging from 6 mesh to 200 mesh, where each particles has a substrate and a coating on the substrate. Said coating contains a continuous phase which contains a curable resol phenol-formaldehyde resin, and reactive powdered particles embedded into the continuous phase or adhered to said phase, wherein the powdered particles contain at least one component selected from a group consisting of resol phenol-formaldehyde resin, phenol-formaldehyde novolac resin, ester, an acrylic compound and urethane. The method of producing said particles involves the following steps: mixing a substrate with a liquid coating material from the curable resol phenol-formaldehyde resin at temperature ranging from approximately 10°C to approximately 65°C to form a resin curable coating in form of a continuous phase on the substrate; mixing the reactive powdered particles with the resin-coated substrate to embed said particles into the continuous phase of the resin coating or adhere said particles to the substrate.

EFFECT: possibility of cost-effective production of highly effective particles in industrial conditions.

43 cl, 4 tbl, 5 ex, 10 dwg