REINFORCING LAYER FOR ITEMS FROM ELASTOMER MATERIAL, PREFERABLY FOR PNEUMATIC TIRES OF VEHICLE, AND PNEUMATIC TIRE OF VEHICLE Russian patent published in 2019 - IPC B60C9/00 

FIELD: tire industry.

SUBSTANCE: reinforcing layer comprises a plurality of parallel and spaced apart tire cords, each tire tire being made from polyamide 6.6 and having a structure × 1 or, in other words, is a twisted multi-fiber thread made from polyamide 6.6. Raw thread from polyamide 6.6 has strength related to unit of linear density in range from 1.35 cN/dtex to 1.60 cN/dtex at elongation of 4 %, wherein multifibre thread has strength related to unit of linear density in range from 2.0 cN/dtex to 2.8 cN/dtex at elongation of 4 %, and cord has thermal shrinkage in range from 4.0 % to 7.0 % at 177 °C, wherein the strength related to a unit of linear density is determined in accordance with ASTM D885-16 and thermal shrinkage is determined at 77 °C with preliminary tension of 0.045 g/dtex with duration of exposure for two minutes.

EFFECT: technical result is improved operational properties of tire at high speeds and improved rolling resistance.

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