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. 31, 2006
Filed:
Feb. 20, 2003
David Andrew Benko, Munroe Falls, OH (US);
Roger Neil Beers, Uniontown, OH (US);
Sunggyu Lee, Columbia, MO (US);
Kelly Lee Clark, Columbia, MO (US);
David Andrew Benko, Munroe Falls, OH (US);
Roger Neil Beers, Uniontown, OH (US);
Sunggyu Lee, Columbia, MO (US);
Kelly Lee Clark, Columbia, MO (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
The present invention discloses a process for devulcanizing cured rubber into devulcanized rubber that is capable of being recompounded and recured into useful rubber products, said process comprising heating the cured rubber to a temperature which is within the range of about 150° C. to about 300° C. under a pressure of at least about 3.4×10Pascals in the presence of a mixture of carbon dioxide and 2-butanol.