Patents by Inventor Essilor International (Compagnie Generale D'Optique)

Essilor International (Compagnie Generale D'Optique) has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130288004
    Abstract: Curable composition providing, upon curing, an abrasion resistant, transparent, antistatic coating comprising: a) at least one conductive polymer, b) colloidal particles of at least one non-conductive oxide, c) at least one binder comprising at least one epoxysilane having at least two hydrolysable groups directly linked to the Si atom of the epoxysilane, and/or its hydrolysis product, said at least one conductive polymer and said colloidal particles of at least one non-conductive oxide being substantially not agglomerated, the content of said conductive polymer in the dry extract of said curable composition ranging from 0.1 to 10% by weight, preferably from 0.2 to 10% by weight and the content of the dry extract of said at least one epoxysilane in the dry extract of said curable composition ranging from 20 to 80% preferably 25 to 60% by weight based on the total weight of the dry extract.
    Type: Application
    Filed: December 19, 2012
    Publication date: October 31, 2013
    Inventor: ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
  • Publication number: 20130105080
    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.
    Type: Application
    Filed: October 22, 2012
    Publication date: May 2, 2013
    Applicant: Essilor International (Compagnie Generale D'Optique)
    Inventor: Essilor International (Compagnie Generale D'Optique)