EP 2925539 A1 20151007 - VEHICLE TIRE HAVING TREAD COMPRISING A HEAT-EXPANDABLE RUBBER COMPOSITION
Title (en)
VEHICLE TIRE HAVING TREAD COMPRISING A HEAT-EXPANDABLE RUBBER COMPOSITION
Title (de)
FAHRZEUGREIFEN MIT EINEM PROFIL MIT EINER WÄRMEEXPANDIERBAREN KAUTSCHUKZUSAMMENSETZUNG
Title (fr)
BANDAGE POUR VEHICULE DONT LA BANDE DE ROULEMENT COMPORTE UNE COMPOSITION DE CAOUTCHOUC THERMO-EXPANSIBLE
Publication
Application
Priority
- FR 1261393 A 20121129
- EP 2013074615 W 20131125
Abstract (en)
[origin: WO2014082962A1] The invention relates to a vehicle tire, in particular a tire for winter, the tread of which comprises a rubber composition that is heat-expandable in the non-vulcanized state, and expanded in the vulcanized state; said composition, when in the non-vulcanized state, comprises at least one diene elastomer such as natural and/or polybutadiene rubber, more than 50 pce of a reinforcing filler, such as silica or carbon black, 2 to 60 pce in microparticles of a hydrosoluble metal salt powder, such as magnesium or potassium sulfate microparticles, 2 to 25 pce of an expansion agent, such as sodium or potassium (hydrogen) carbonate, and 2 to 25 pce of a hot-melt compound having a melting temperature of 60°C to 220°C, such as citric acid, for example. The combined use of said various compounds, at the anticipated rates, enables good adhesion to both dry ice and melting ice.
IPC 8 full level
B60C 1/00 (2006.01); C08J 9/06 (2006.01); C08K 3/04 (2006.01); C08K 3/26 (2006.01); C08K 5/09 (2006.01); C08L 7/00 (2006.01); C08L 9/00 (2006.01); C08L 21/00 (2006.01)
CPC (source: EP)
B60C 1/0016 (2013.01); C08J 9/0023 (2013.01); C08J 9/0061 (2013.01); C08J 9/0066 (2013.01); C08J 9/008 (2013.01); C08J 9/0095 (2013.01); C08J 9/08 (2013.01); C08J 2201/026 (2013.01); C08J 2203/02 (2013.01); C08J 2307/00 (2013.01); C08J 2309/00 (2013.01); C08J 2319/00 (2013.01); C08J 2407/00 (2013.01); C08J 2409/00 (2013.01); C08J 2419/00 (2013.01)
Citation (search report)
See references of WO 2014082962A1
Citation (examination)
EP 2914442 A1 20150909 - MICHELIN & CIE [FR], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
FR 2998508 A1 20140530; EP 2925539 A1 20151007; WO 2014082962 A1 20140605
DOCDB simple family (application)
FR 1261393 A 20121129; EP 13798297 A 20131125; EP 2013074615 W 20131125