GREASE FOR SAFETY TIRES Russian patent published in 2020 - IPC B60C17/10 

FIELD: motor vehicle industry.

SUBSTANCE: invention relates to automotive industry, in particular to antifriction lubricants for safety wheels consisting of tire, inner support, rim, as well as for Run Flat tires, which allow vehicle movement with sudden loss of internal pressure or absence of air overpressure in tires. Plastic lubricant consists of: lubricating base (85 %); thickener (10 %); heat-absorbing additive (5 %). Lubricating base is a product of alcoholate polymerization of propylene oxide with glycerine followed by block copolymerization with ethylene oxide – Laprol 5003-2-B10 with molecular weight 5,000±300, hydroxyl number, mg KOH/g, within 32.0–36.0; with weight ratio of oxyethyl groups of 11–13.5 %. Rheological additive Garamite 1958 is used as a thickener. Heat-absorbing additive: sodium bicarbonate, which is a decomposable substance with heating, with negative thermal decomposition effect.

EFFECT: reduced wear and heating of inner surface of tire, outer surface of inner support as a result of friction in zone of their contact, as well as reduction of temperature in said zone due to decomposition of heat-absorbing additive.

1 cl, 2 tbl