Invention Grant
- Patent Title: Process for producing a curved substrate covered with a film
- Patent Title (中): 用于制造被膜覆盖的弯曲基板的方法
-
Application No.: US13657454Application Date: 2012-10-22
-
Publication No.: US09050755B2Publication Date: 2015-06-09
- Inventor: Timothy E. Herod , Margie Hendrickson , Robert J. Rist
- Applicant: Essilor International (Compagnie Generale D'Optique)
- Applicant Address: FR Charenton Le Pont
- Assignee: Essilor International (Compagnie Generale D'Optique)
- Current Assignee: Essilor International (Compagnie Generale D'Optique)
- Current Assignee Address: FR Charenton Le Pont
- Agency: Seed IP Law Group PLLC
- Main IPC: C09J5/02
- IPC: C09J5/02 ; B29C65/48 ; B29C65/00 ; B29D11/00 ; B29L11/00
Abstract:
A process for producing a curved substrate (20) covered with a film (10) 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 (20) with the film (10) 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 (20) has a low glass transition temperature.
Public/Granted literature
- US20130105080A1 PROCESS FOR PRODUCING A CURVED SUBSTRATE COVERED WITH A FILM Public/Granted day:2013-05-02
Information query
IPC分类:
