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
2008-12-01
2011-10-04
Harlan, Robert D. (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...
C526S904000, C526S901000, C525S240000
Reexamination Certificate
active
08030390
ABSTRACT:
A rubber composition having (A) an elastomer component in which the primary elastomer constituent is an ethylene-propylene elastomer polymerized in the gas phase with a metallocene catalyst and having a molecular weight of at least about 250,000; (B) a silicon-modified olefinic elastomer in an amount of from about 5 to about 50 parts per hundred parts of the elastomer component; (C) ground mica in an amount of from about 2.5 to about 30 parts per hundred parts of the elastomer component; and (D) a peroxide curative. The composition may be used in a vibration isolator which may be used in a belt drive system.
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Feng Yuding
Hodjat Yahya
Lambrinos Kathy
Dougherty, Esq. T. A.
Dunlap, Esq. P. N.
Harlan Robert D.
The Gates Corporation
Thurnau, Esq. J. A.
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