PNEUMATIC TIRE AND METHOD OF ITS PRODUCING Russian patent published in 2013 - IPC B60C19/08 B29C33/02 B29C35/02 B29D30/60 B29D30/68 B60C5/00 B60C11/00 

FIELD: transport.

SUBSTANCE: invention relates to design of pneumatic tire capable to discharge static electricity of vehicle to road surface. Tread rubber (2G) includes undertread layer (9) located radially inside so that this layer goes continuously from one tread edge (el) to another tread edge (e2) and made of nonconductive rubber, running path (10) made of nonconductive rubber and located radially outside from undertread layer (9) with tread (2a) formation, and conducting part (11) made of conducting rubber and having one end coming out on tread (2a) and another end connected with rubber (3G) of sidewall electrically connected with rim when the rim is installed. Running path (10) includes the first part (10A) of running path and the second part (10B) of running path obtained by division in vertical direction. Conducting part (11) goes from tread (2a) radially inwards between the first part (10A) of running path and the second part (10B) of running path, and the second part (10B) of running path before connecting with sidewall rubber (3G).

EFFECT: better vehicle static electricity discharge to road surface without decrease of rolling resistance and tire uniformity.

26 cl, 26 dwg, 3 tbl