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
2007-08-03
2010-11-16
Jagannathan, Vasu (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S056000, C525S057000, C525S220000, C525S472000, C428S494000
Reexamination Certificate
active
07834090
ABSTRACT:
A torsional vibration damper or other vibration damping device with a rubber vibration absorbing element. The rubber element is a peroxide-cured composition based on 100 parts of ethylene-alpha-olefin elastomer, and 5 to 100 parts of polyvinyl butyral polymer which may have a molecular weight from about 40,000 to about 250,000. The composition may also include a compatibilizer or homogenizer, such as chlorinated polyethylene. The polyvinyl butyral increases the damping of the composition, and the compatibilizer improves the temperature stability of the damping.
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Feng Yuding
Hodjat Yahya
Zhu Lin
Dunlap, Esq. P. N.
Jagannathan Vasu
Kaucher Mark S
The Gates Corporation
Thurnau, Esq. J. A.
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