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:
Oct. 31, 2017
Filed:
Dec. 11, 2014
Novartis Ag, Basel, CH;
Arturo Norberto Medina, Suwanee, GA (US);
Jinyu Huang, Suwanee, GA (US);
Katherine Ard, Alpharetta, GA (US);
Honghui Lu, Johns Creek, GA (US);
Uwe Haken, Norcross, GA (US);
Novartis AG, Basel, CH;
Abstract
The instant invention pertains to a method and a fluid composition for producing contact lenses with improved lens quality and with increased product yield. The method of the invention involves applying to a molding surface of the mold a layer of mold releasing agent selected from a group consisting of fatty amines of carbon chain length C18 or less and silicones bearing pendant substituted pyrrolidone groups solution to reduce an averaged mold separation force by at least about 50% in comparison with that without the releasing agent.