Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Reexamination Certificate
2004-06-21
2009-08-18
Nerangis, Vickey (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
C524S261000, C524S492000, C524S495000, C524S571000
Reexamination Certificate
active
07576153
ABSTRACT:
An elastomeric composition usable for the manufacture of tires, based on at least (i) a diene elastomer, (ii) an inorganic filler as reinforcing filler and (iii), as (inorganic filler/diene elastomer) coupling agent, a organosilicon compound which is at least bifunctional and can be grafted on to the elastomer by means of a sulfur group having a polythiosulfenamide function, of formula:in-line-formulae description="In-line Formulae" end="lead"?≡Si—A—Sx—NR1R2, (I)in-line-formulae description="In-line Formulae" end="tail"?in which:A is a divalent bond group, whether straight-chain or branched, which makes it possible to join the polythiosulfenamide group to a silicon atom of the organosilicon compound;x is an integer or fractional number of from 2 to 4;R1represents hydrogen or a monovalent hydrocarbon group;R2represents a monovalent hydrocarbon group selected from among C3-C8alkyls, whether straight-chain or branched, C5-C10cycloalkyls, C6-C18aryls and (C6-C18)aryl-(C1-C8)alkyls;R1and R2possibly forming together and with the nitrogen atom to which they are bonded a single hydrocarbon ring.Tires and tire treads comprising a composition of this type.
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Lewis, Sr., Richard J. Hawley's Condensed Chemical Dictionary, 12thEdition, 1993, p. 930.
Araujo Da Silva Carlos José
Blanchard Christiane
Mignani Gerard
Pagano Salvatore
Tardivat Jean-Claude
Buchanan & Ingersoll & Rooney PC
Michelin & Recherche et Technique S.A.
Nerangis Vickey
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