HEAT-SHIELD MATERIAL Russian patent published in 2017 - IPC C08L23/16 C08K3/04 C08K7/02 C08K7/22 C08K13/06 

FIELD: chemistry.

SUBSTANCE: material contains EPDM-40 ethylene-propylene diene rubber, sulfur curing agents and tiuram D, vulcanization accelerator 2-mercaptobenzothiazole, vulcanization activators, zinc oxide and stearin, carbon black, a phosphorborate-containing oligomer modification additive, and a mixture of microspheres and micro-carbon fibres. Moreover, a modification additive is applied to a mixture of microspheres and micro-carbon fibres by means of their thermostating at 80°C in 5 wt % solution of phosphoroborate containing oligomer in acetone.

EFFECT: increased strength and increased duration of heat-shielding efficiency.

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