WATERPROOF FROST-RESISTANT ROAD ASPHALT COAT Russian patent published in 2013 - IPC C09D175/04 C09D113/00 C08K3/36 

FIELD: chemistry.

SUBSTANCE: invention relates to construction and can be used in road construction. The coating contains a polymer base - two liquid low-molecular weight rubbers with terminal epoxy and carboxyl functional groups, copolymerisable and three-dimensionally cross-linked by an agent. Said rubber is polydiene isoprene urethane rubber with terminal epoxy groups and polybutadiene rubber with terminal carboxyl groups. The coating also contains filler in form of polyfractional silicon dioxide and additionally contains processing additives which include a three-dimensionally cross-linking agent with epoxy functional groups which are antipodal with respect to carboxyl groups, a thixotropic booster and an elastomer pigment - technical carbon and a catalyst for three-dimensional cross-linking rubber. The ingredients are in the following ratio, wt %: two liquid low-molecular weight rubbers with terminal epoxy and carboxyl functional groups - 9.0-18.0, polyfractional silicon dioxide - 77.0-86.5, process additives - 4.5-5.0.

EFFECT: improved waterproofing properties and frost-resistance of road asphalt.

2 cl, 1 tbl, 2 ex