HEAT-SHIELDING MATERIAL Russian patent published in 2018 - IPC C08L23/16 C08K3/04 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to heat-shield materials based on ethylene-propylene diene rubbers, which can be used in aircraft and rocket production. Heat-shielding material contains EPDM-40 ethylene-propylene diene rubber, curing agents sulfur and tiuram D, vulcanization accelerator 2-mercaptobenzothiazole, vulcanization activators – zinc oxide and stearin, carbon black P-324 and a modifying additive. Moreover, the modifying additive is a phosphorus-containing oligomer obtained as a result of the reaction of dimethyl phosphite, ED-20 epoxide and aniline, taken in a weight ratio of 1:2.5:0.75.

EFFECT: resulting heat-shielding material has increased fire resistance and strength.

1 cl, 3 tbl