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:
Sep. 19, 2023
Filed:
May. 13, 2019
Essilor International, Charenton-le-Pont, FR;
Elliot French, Dallas, TX (US);
Peiqi Jiang, Dallas, TX (US);
Essilor International, Charenton-le-Pont, FR;
Abstract
Disclosed are methods () for preparing a laminate incorporable to a surface of an optical lens and methods () for incorporating the laminate on the surface of the optical lens. The laminate is prepared by laminating an optical film (), such as a polycarbonate film, on each side of a functional film using an adhesive that is capable of preventing optical defects in the laminates during a thermoforming process and an injection molding process. The adhesive has optimal thermomechanical properties that include that the optical film () coated with said adhesive has a modulus by compression greater than 6×10Pa, and preferably greater than 2×10Pa at a temperature from about 130° C. to 150° C. The laminate is incorporated on the optical lens via thermoforming followed by injection molding with overmolding technology.