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:
Mar. 01, 2005
Filed:
May. 15, 1998
Applicants:
Frank D. Guffey, Laramie, WY (US);
Floyd Alan Barbour, Laramie, WY (US);
Inventors:
Frank D. Guffey, Laramie, WY (US);
Floyd Alan Barbour, Laramie, WY (US);
Assignee:
Wyoming Research Corporation, Laramie, WY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C004/22 ;
U.S. Cl.
CPC ...
Abstract
A process for recycling or decomposing waste plastic where such wasteplastic is decomposed in a diluent such as hot oil through actions involvingfree radical precursor, such as polyvinyl chloride or polyurethane, is achievedat low temperature. The thermal decomposition (or pyrolysis) reaction is forabout 1 hour at 375° C., and useable products, such as distillate, coke, and oilare recovered. Additionally the diluent may be recycled within the process.