US 11,691,368 B2
Method for manufacturing a pneumatic tire with an improved tread
Frederic Pialot, Clermont-Ferrand (FR); Thomas Fabre, Clermont-Ferrand (FR); and Pierre Wiel, Clermont-Ferrand (FR)
Assigned to Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand (FR)
Appl. No. 16/629,874
Filed by Compagnie Generale Des Etablissements Michelin, Clermont-Ferrand (FR)
PCT Filed Jul. 2, 2018, PCT No. PCT/FR2018/051635
§ 371(c)(1), (2) Date Jan. 9, 2020,
PCT Pub. No. WO2019/012202, PCT Pub. Date Jan. 17, 2019.
Claims priority of application No. 1756542 (FR), filed on Jul. 11, 2017.
Prior Publication US 2020/0230904 A1, Jul. 23, 2020
Int. Cl. B29D 30/06 (2006.01); B29D 30/58 (2006.01); B29D 30/00 (2006.01); B29K 21/00 (2006.01); B60C 5/00 (2006.01)
CPC B29D 30/0678 (2013.01) [B29D 30/58 (2013.01); B29D 2030/0011 (2013.01); B29K 2021/003 (2013.01); B60C 5/007 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A process for manufacturing a pneumatic tire, characterized in that it comprises the following steps:
a) forming a carcass comprising uncured rubber materials, a carcass ply, two bead wires (4), an air-impermeable inner rubber and crown plies and then totally curing only the carcass so as to make it elastic;
b) overmolding on the carcass obtained in step a) at least one material based on a thermoplastic elastomer by injecting a material based on the thermoplastic elastomer into a mold so as to form, onto the carcass, exterior sidewalls and a tread.