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
2008-10-16
2011-12-06
Choi, Ling-Siu (Department: 1762)
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...
C524S236000, C524S379000, C524S493000, C524S502000
Reexamination Certificate
active
08071668
ABSTRACT:
Rubber compounds containing a halobutyl elastomer, at least one additional elastomer, a mineral filler and at least a three component mixed modifier system comprising a silane compound, a phosphine compound and an additive containing at least one hydroxyl group and a functional group containing a basic amine. A process for preparing the compounds is also disclosed. The compounds are particularly useful in tire treads and exhibit improved processability, traction, rolling resistance and wear properties.
REFERENCES:
patent: 2005/0245649 (2005-11-01), Parent et al.
patent: 2007/0123619 (2007-05-01), Kulbaba et al.
Parent et al., “Isobutylene-based ionomer composite: siliceous filler reinforcement”, Polymer, 45, 8091-8096 (2004).
European search report corresponding EP 08 83 8590 pending application dated Jul. 21, 2011 (4 pages).
Campomizzi Ezio
Cho-Young Lionel
Kulbaba Kevin
Schenkel Ralf-Ingo
Choi Ling-Siu
LANXESS Inc.
Miller Michael A.
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