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:
Dec. 17, 2019
Filed:
Jun. 13, 2016
Applicant:
Ferro Corporation, Mayfield Heights, OH (US);
Inventors:
Nathaniel D. Urban, Canandaigua, NY (US);
Edward E. Abbott, Tucson, AZ (US);
Yue Liu, Marietta, GA (US);
Assignee:
Ferro Corporation, Mayfield Heights, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B 13/00 (2006.01); C09G 1/02 (2006.01); B24B 37/24 (2012.01); G02B 1/04 (2006.01);
U.S. Cl.
CPC ...
C09G 1/02 (2013.01); B24B 13/00 (2013.01); B24B 37/24 (2013.01); G02B 1/041 (2013.01);
Abstract
The present invention provides a slurry composition and method for polishing organic polymer-based ophthalmic substrates. The slurry composition according to the invention includes an aqueous dispersion of abrasive particles and one of a polyvinyl alcohol compound, and a tertiary amide functionalized compound. The abrasive particles can be alumina, zirconia, silica, titania, ceria, spinel or combinations of the foregoing.