Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2006-03-28
2006-03-28
Yoon, Tae H. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S332800, C525S333100, C525S333200, C525S333300, C524S492000, C524S493000, C524S495000, C524S496000, C523S351000
Reexamination Certificate
active
07019084
ABSTRACT:
The present invention relates to the preparation of rubber compositions for tire tread and tire sidewall component applications. A tire is provided having tread of such composition designed for relatively heavy loads such as, for example, truck tires. A tire having a sidewall of such composition is also provided. Such tire component rubber compositions are of rubber compositions reinforced with precipitated silica and selected carbon black in specified amounts and prepared with a prescribed order of addition to the rubber composition and composed of elastomers as a specific combination of high trans styrene-butadiene rubber with natural or synthetic cis 1,4-polyisoprene rubber and cis 1,4-polybutadiene rubber.
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European Search Report.
DeLong John D.
The Goodyear Tire & Rubber Company
Yoon Tae H.
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