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
2008-04-01
2008-04-01
Jagannathan, Vasu (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, C524S571000, C524S573000, C524S574000, C524S575500, C152S905000
Reexamination Certificate
active
10733613
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 polysilylated organosilicon compound which is at least bifunctional and can be grafted onto 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 first silicon atom of the organosilicon compound;x is an integer or fractional number of from 2 to 4;R1represents hydrogen, a monovalent hydrocarbon group, or R2; andR2represents the grouping:in-line-formulae description="In-line Formulae" end="lead"?—B—Si≡,in-line-formulae description="In-line Formulae" end="tail"?in which:B is a divalent bond group, whether straight-chain or branched;Si represents a second silicon atom of the organosilicon compound.The invention also concerns tires and tire treads comprising a composition of this type.
REFERENCES:
patent: 4292234 (1981-09-01), Borel
patent: 5996663 (1999-12-01), Garro et al.
patent: 2004/0254269 (2004-12-01), Barruel et al.
Araujo-Da-Silva José-Carlos
Blanchard Christiane
Mignani Gerard
Pagano Salvatore
Tardivat Jean-Claude
Buchanan & Ingersoll & Rooney PC
Jagannathan Vasu
Michelin & Recherche et Technique S.A.
Ronesi Vickey
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