EP 1404755 A1 20040407 - TYRE TREAD REINFORCED WITH SILICA HAVING A VERY LOW SPECIFIC SURFACE AREA
Title (en)
TYRE TREAD REINFORCED WITH SILICA HAVING A VERY LOW SPECIFIC SURFACE AREA
Title (de)
REIFENLAUFFLÄCHE VERSTÄRKT DURCH KIESELSÄURE MIT NIEDRIGER SPEZIFISCHER OBERFLÄCHE
Title (fr)
BANDE DE ROULEMENT POUR PNEUMATIQUE RENFORCEE D'UNE SILICE A TRES BASSE SURFACE SPECIFIQUE
Publication
Application
Priority
- EP 0206886 W 20020621
- FR 0108785 A 20010628
Abstract (en)
[origin: WO03002649A1] The invention relates to a tyre tread comprising an elastomer composition reinforced with silica and made from at least (pce = parts by weight per 100 parts of diene elastomer): (i) a diene elastomer; (ii) by way of a reinforcing filler, more than 80 pce of an inorganic filler consisting wholly or partly of a silica (called LS) having the following characteristics: (a) a BET specific surface area of between 50 and 100 m<2>/g; (b) an average particle size dw of between 50 and 350 nm; (iii) a coupling agent that is used to link the reinforcing inorganic filler and the diene elastomer; (iv) a sulphur-based vulcanisation system. Preferably, said LS silica has a deagglomeration speed alpha that is greater than 5.10 -3 mu m-1/min (measured with the deagglomeration test using ultrasound). In comparison to a standard tyre tread for green tyres reinforced with a silica having a higher specific surface area, the inventive tyre tread is provided with an improved performance trade-off in terms of wear resistance, rolling resistance, adhesion and drift thrust.
IPC 1-7
IPC 8 full level
B60C 1/00 (2006.01); C08K 3/06 (2006.01); C08K 3/36 (2006.01); C08K 9/12 (2006.01); C08L 9/00 (2006.01)
CPC (source: EP US)
B60C 1/0016 (2013.01 - EP US); C08K 3/36 (2013.01 - EP US); C08K 9/12 (2013.01 - EP US); C08L 9/00 (2013.01 - EP US); C08L 9/06 (2013.01 - EP US); Y02T 10/86 (2013.01 - EP US)
Citation (search report)
See references of WO 03002649A1
Citation (third parties)
Third party :
- US 5925713 A 19990720 - LABAUZE GERARD [FR]
- US 5227425 A 19930713 - RAULINE ROLAND [FR]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03002649 A1 20030109; CN 1325549 C 20070711; CN 1561367 A 20050105; EP 1404755 A1 20040407; JP 2005504854 A 20050217; JP 4536375 B2 20100901; US 2005016650 A1 20050127; US 7491767 B2 20090217
DOCDB simple family (application)
EP 0206886 W 20020621; CN 02816702 A 20020621; EP 02751056 A 20020621; JP 2003509023 A 20020621; US 74548003 A 20031229