The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2007
Filed:
Mar. 31, 2004
Applicants:
Paul N. Dunlap, Denver, CO (US);
Bobbie E. South, Dryden, MI (US);
Inventors:
Paul N. Dunlap, Denver, CO (US);
Bobbie E. South, Dryden, MI (US);
Assignee:
The Gates Corporation, Denver, CO (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 210/10 (2006.01); C08F 210/08 (2006.01); C08L 23/16 (2006.01); B32B 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A torsional vibration damper or other vibration damping device with a rubber vibration absorbing element. The rubber element is a peroxide-cured composition comprising 100 parts of ethylene-alpha-olefin elastomer, and 20 to 100 parts of substantially isobutylene or butene polymer having a viscosity average molecular weight greater than about 5000. The polymer may also be a copolymer of isobutylene and isoprene. The addition of the isobutylene polymer to the ethylene-alpha-olefin elastomer composition increases the vibration damping character of the rubber.