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:
Apr. 16, 2019
Filed:
Oct. 13, 2017
Applicant:
David Lee Sikkenga, Wheaton, IL (US);
Inventor:
David Lee Sikkenga, Wheaton, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/265 (2006.01); C07C 51/44 (2006.01); B01J 23/889 (2006.01); C08J 11/16 (2006.01);
U.S. Cl.
CPC ...
C07C 51/265 (2013.01); B01J 23/8892 (2013.01); C07C 51/44 (2013.01); C08J 11/16 (2013.01); C08J 2325/06 (2013.01);
Abstract
Polystyrene-containing polymers are converted to benzoic acid by catalytic oxidation of dissolved polystyrene under elevated temperature and pressure. The produced benzoic acid is recovered by evaporation.