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:
Jun. 09, 2015
Filed:
Oct. 22, 2012
Essilor International (Compagnie Generale D'optique), Charenton Le Pont, FR;
Timothy E. Herod, St. Petersburg, FL (US);
Margie Hendrickson, St. Petersburg, FL (US);
Robert J. Rist, St. Petersburg, FL (US);
Essilor International (Compagnie Generale D'Optique), Charenton Le Pont, FR;
Abstract
A process for producing a curved substrate () covered with a film () comprises a heat treatment of the film performed between a step of preforming said film and a step of assembling the film with the substrate. A maximum temperature of the pre-assembling heat treatment is higher than another maximum temperature of a post-assembling heat treatment (F) which is performed after the assembling step. Then the assembly of the substrate () with the film () is not altered during said post-assembling heat treatment. In particular, no defect and no delamination appear, and no change in the curved shape of the substrate is caused by the post-assembling heat treatment, even if the substrate () has a low glass transition temperature.