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

FIELD: technological processes.

SUBSTANCE: reinforcing layer has multiple parallel reinforcing elements, which are located at a distance from each other. Each reinforcing element is a cord which is twisted at the ends of at least two twisted multifiber threads from polyamide 6.6. Non-treated yarn of 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 %, the cord has a strength related to a unit of linear density in range of 1.2 cN/dtex to 2 cN/dtex at elongation of 4 %, and the cord has a thermal shrinkage in range from 4.0 to 7.0 % at 177 °C, at that, relative to unit of linear density strength in accordance with ASTM D885-16 and thermal shrinkage at 177 °C are determined at preliminary tension of 0.045 g/dtex and at holding time of two minutes.

EFFECT: improved operational characteristics of tire at high speeds and improved rolling resistance.

12 cl, 2 tbl