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1. (WO2017149472) SALTS WITH ANTI-DEGRADATION ACTIVITY, ELASTOMERIC COMPOSITIONS FOR TIRES AND TIRES COMPRISING THE SAME

Pub. No.:    WO/2017/149472    International Application No.:    PCT/IB2017/051197
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Mar 02 00:59:59 CET 2017
IPC: C08L 7/00
B60C 1/00
C08K 5/09
C08K 5/17
C08K 5/19
Applicants: PIRELLI TYRE S.P.A.
Inventors: ROSSIELLO, Luigia
HANEL, Thomas
Title: SALTS WITH ANTI-DEGRADATION ACTIVITY, ELASTOMERIC COMPOSITIONS FOR TIRES AND TIRES COMPRISING THE SAME
Abstract:
The present invention relates to new antioxidant and antiozonant elastomeric compositions for tyres, characterized by reduced volatility of the active compounds, improved processability and environmental sustainability, increased anti-degradation efficacy and improved surface appearance. In particular, the elastomeric compositions of the inventions comprise Salts formed by acids AC of formula (I) and amines AM of formula (II) The elastomeric compositions of the inventions are particularly suitable for the manufacture of tyre components such as sidewalls, treads and anti-abrasive layer, components that in the tyre are particularly subject to wear due to the combination of the degrading action of ozone and mechanical stresses.