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. 11, 2020
Filed:
Nov. 18, 2016
Corning Incorporated, Corning, NY (US);
Jaymin Amin, Corning, NY (US);
Xiaoju Guo, Painted Post, NY (US);
Todd LeRoy Heck, Millerton, PA (US);
Hongmei Hu, Painted Post, NY (US);
Yuhui Jin, Painted Post, NY (US);
Pascale Oram, Hammondsport, NY (US);
Ljerka Ukrainczyk, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNOand NaNO, providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.