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:
Nov. 30, 2021
Filed:
Feb. 21, 2018
Nova Chemicals (International) S.a., Fribourg, CH;
Evan Mah, Calgary, CA;
Vasily Simanzhenkov, Calgary, CA;
Leslie Benum, Red Deer, CA;
Hany Farag, Calgary, CA;
Bolaji Olayiwola, Calgary, CA;
NOVA CHEMICALS (INTERNATIONAL) S.A., Fribourg, CH;
Abstract
An anti-coking surface having a thickness up to 15 microns comprising from 15 to 50 wt. % of MnCrO(for example manganochromite); from 15 to 25 wt. % of CrMnNi(for example chromium manganese nickel); from 10 to 30 wt. % of CrFeO(for example chromium iron oxide); from 12 to 20 wt. % of CrO(for example eskolaite); from 4 to 20 wt. % of CuFeO(for example copper iron oxide); and less than 5 wt. % of one or more compounds chosen from FeO(OH), CrO(OH), CrMn, Si and SiO(either as silicon oxide or quartz) and less than 0.5 wt. % of aluminum in any form provided that the sum of the components is 100 wt. % is provided on steel.