EP 2227504 A1 20100915 - TYRE HAVING A TREAD PROVIDED WITH CAVITIES CONTAINING A SPECIFIC FILLER MATERIAL
Title (en)
TYRE HAVING A TREAD PROVIDED WITH CAVITIES CONTAINING A SPECIFIC FILLER MATERIAL
Title (de)
KAUTSCHUKZUSAMMENSETZUNG FÜR REIFENLAUFFLÄCHEN, DIE HOHLRÄUME MIT SPEZIFISCHEN FÜLLMATERIAL ENTHALTEN
Title (fr)
PNEUMATIQUE DONT LA BANDE DE ROULEMENT EST POURVUE DE CAVITES COMPORTANT UN MATERIAU DE REMPLISSAGE SPECIFIQUE
Publication
Application
Priority
- EP 2008010791 W 20081218
- FR 0760442 A 20071228
Abstract (en)
[origin: WO2009083160A1] The invention relates to a tyre having a tread, wherein the tread includes a plurality of cavities, at least a portion of said cavities including a filler composition containing at least: a dienic elastomer; more than 50 pce of a load (referred to as A) in which the particles are nanoparticles having an average size (in mass) lower than 500 nm; more than 70 pce of a load (referred to as B) in which the particles are microparticles having a median size (in mass) higher than 1 µm. The filler composition is sufficiently cohesive for ensuring an excellent mechanical strength of the cavities. It is further capable of progressive wear when running, and without crackling, at a rate higher than that of the composition used for the tread itself.
IPC 8 full level
C08L 7/00 (2006.01); B60C 1/00 (2006.01); B60C 11/12 (2006.01); C08K 3/26 (2006.01)
CPC (source: EP US)
B60C 1/0016 (2013.01 - EP US); B60C 11/14 (2013.01 - EP US); C08K 3/013 (2017.12 - EP US); C08K 3/26 (2013.01 - EP US); C08L 7/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2009083160A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2925914 A1 20090703; FR 2925914 B1 20110225; CN 101910277 A 20101208; CN 101910277 B 20131016; EP 2227504 A1 20100915; JP 2011509320 A 20110324; JP 5642555 B2 20141217; US 2011039976 A1 20110217; WO 2009083160 A1 20090709
DOCDB simple family (application)
FR 0760442 A 20071228; CN 200880122595 A 20081218; EP 08868075 A 20081218; EP 2008010791 W 20081218; JP 2010540049 A 20081218; US 81098208 A 20081218