To compensate for any reduction in tire pressure over time without the need for driver intervention.
A method includes: constructing a coated filament 104 the coated filament constructed by coating a filament with a coating material, the coating material including at least one diene based elastomer and heat expandable thermoplastic resin particles containing therein a liquid or solid capable of generating a gas upon vaporization, decomposition, or a chemical reaction under heating; encasing the coated filament 104 into containment within an uncured or pre-cured flexible tire component; building a green tire from tire components including the uncured or pre-cured flexible tire component and the encased coated filament 104; curing the green tire including the flexible tire component containing the coated filament 104; removing the filament 104 from the cured flexible tire component to leave within the flexible tire component a substantially unobstructed air passageway 238.
JACOBS GASTON EMILE
BESNOIN ETIENNE
| JPH11149221A | 1999-06-02 | |||
| JP2009537386A | 2009-10-29 | |||
| JPH03288629A | 1991-12-18 | |||
| JP2011235887A | 2011-11-24 | |||
| JP2007501153A | 2007-01-25 |
Ishibashi Masayuki
Masaaki Ogata
Next Patent: METHOD OF PRODUCING AIR MAINTENANCE TIRE