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:
Feb. 13, 2018
Filed:
Aug. 19, 2015
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Eric W. Stratton, Mansfield, TX (US);
Michael J. Minor, Arlington, TX (US);
Assignee:
UNITED TECHNOLOGIES CORPORATION, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 27/00 (2006.01); B32B 15/01 (2006.01); C23F 1/44 (2006.01); C23F 1/28 (2006.01);
U.S. Cl.
CPC ...
B32B 15/01 (2013.01); B32B 15/013 (2013.01); B32B 15/015 (2013.01); C23F 1/28 (2013.01); C23F 1/44 (2013.01);
Abstract
The present disclosure relates generally to strip process for removing a coating from a substrate comprising the steps of: providing a base alloy and a MCrAlY coating deposited over the base alloy substrate; and removing the MCrAlY coating by bringing the MCrAlY coating in contact with an acid solution comprising nitric acid, phosphoric acid and ammonium bifluoride in an aqueous solution, and maintaining the acid solution contact for sufficient time and at sufficient temperature to permit the coating to be stripped from the base alloy substrate.