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    METHOD FOR THE PRODUCTION OF AN OPTICAL ARTICLE WITH IMPROVED ANTI-FOULING PROPERTIES
    11.
    发明专利
    METHOD FOR THE PRODUCTION OF AN OPTICAL ARTICLE WITH IMPROVED ANTI-FOULING PROPERTIES 未知

    公开(公告)号：CA2896178A1

    公开(公告)日：2014-07-03

    申请号：CA2896178

    申请日：2013-12-24

    Applicant: ESSILOR INT

    Inventor： FOURNAND GERALD

    IPC: G02B27/00

    Abstract: Method for the manufacture of an optical article comprising the following steps: - providing a substrate having two main faces and bearing -OH functions on at least one of its faces, - successively exposing in this order one face of the substrate bearing OH functions to at least 3 distinct materials named M1, M2, M3 and optionally material M4 in a vacuum chamber under conditions resulting in the deposit of those materials on the surface of the substrate, and wherein: - M1 is a substituted silane comprising at least one function X1 directly bonded to a Si atom of the substituted silane, wherein the Si-X1 group is capable of forming a covalent bond with a OH group of the substrate, X1 being preferably a hydrolysable group (such a NH2 group) or a -OH group directly bonded to the silicon atom and comprising at least one fluorine containing group, - M2 is a substituted silane of number average molecular weight inferior or equal to 900 g/mol comprising at least one function X2 directly bonded to a silicon atom of said substituted silane wherein the Si-X2 group is capable of forming a covalent bond with a OH group of the substrate and/or a covalent bond with M1, X2 being preferably a hydrolysable group (such a NH2 group) or a OH group and at least one hydrophobic or oleophobic group, or at least one hydrophilic group, - Wherein M1 has a weight average molecular weight higher than M2 and the difference between M1 and M2 weight average molecular weights is equal to or higher than 600 g/mol, preferably equal to or higher than 900 g/mol. - M3 is a metal fluoride, - Optional M4 is a non fluorinated metal oxide or metal hydroxide.

    12.
    发明专利
    未知

    公开(公告)号：AT523291T

    公开(公告)日：2011-09-15

    申请号：AT07712217

    申请日：2007-02-14

    Applicant: ESSILOR INT

    Inventor： FOURNAND GERALD ,  DE LEUZE-JALLOULI AGNES ,  KEEGAN BRUCE

    IPC: B24B9/14 ,  G02B1/10 ,  G02C7/02

    Abstract: A process for edging an optical lens for conforming the optical lens to the size and shape of a lens frame into which the optical lens is to be accommodated, said process comprising: a) providing an optical lens having a convex surface, the convex surface being provided with an anti-smudge topcoat rendering the optical lens inappropriate for edging; b) fixing a mounting element on the convex surface of the optical lens, preferably on its center, by means of an adhesive pad adhering both to the mounting element and the convex surface of the optical lens to form a mounting element/optical lens assembly; c) placing the mounting element/optical lens assembly in a grinding machine so that the optical lens is firmly maintained; and d) edging the optical lens to the intended size and shape, wherein, prior to step (b) of fixing the mounting element, the anti-smudge topcoat on the convex surface of the optical lens is pre-treated with a solvent selected from the group consisting of alkanols and dialkylketones under a mechanical stress.

    15.
    发明专利
    未知

    公开(公告)号：AT449666T

    公开(公告)日：2009-12-15

    申请号：AT06830730

    申请日：2006-12-19

    Applicant: ESSILOR INT

    Inventor： CONTE DOMINIQUE ,  FOURNAND GERALD ,  JALLOULI AGNES ,  VAGHARCHAKIAN LAURIANNE

    IPC: B24B9/14 ,  B24B13/005 ,  C03C17/00 ,  G02B1/10

    Abstract: Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.

    Machine for coating an optical article with an anti-soiling coating composition and method for using the machine
    17.
    发明专利
    Machine for coating an optical article with an anti-soiling coating composition and method for using the machine 未知

    公开(公告)号：AU2016102086A4

    公开(公告)日：2017-01-12

    申请号：AU2016102086

    申请日：2016-12-07

    Applicant: ESSILOR INT ,  SATISLOH PHOTONICS AG

    Inventor： STROBEL RETO ,  SCHOLZE STEPHAN ,  FOURNAND GERALD ,  BORGHARKAR NARENDRA

    IPC: C23C14/02 ,  C23C14/12 ,  C23C14/54 ,  C23C14/56

    Abstract: The invention provides a method for coating an optical article with an anti-soiling coating composition, comprising selecting an optical article (28) having an initial outermost anti-soiling coating, loading (100) the optical article (28) into a vacuum chamber (8) of a coating machine (1 ) configured to receive the optical article (28), loading (100) the anti-soiling coating composition into the vacuum chamber (8), starting (101) a vacuum pump (20) of the machine (1 ) and causing (102) the vacuum pump (20) to suck gases from the vacuum chamber (8), carrying out (104) a vacuum plasma treatment using a plasma generator (11) configured and controlled for removing an initial outermost anti-soiling coating of the optical article (28), subsequently causing (108) the vacuum pump (20) not to suck gases from the vacuum chamber (8), carrying out (109) a vacuum evaporation treatment using an evaporation device (10) configured to evaporate the composition for depositing it on the optical article in controlled manner such as to recoat the optical article (28) with the anti-soiling coating composition, and unloading (114) the re-coated optical article (28) from the vacuum chamber. Fig 1. --------- -\ - ---- - ---------- -- - ------- ------------ --- --------- ------ - ----

    19.
    发明专利
    未知

    公开(公告)号：DE602006010735D1

    公开(公告)日：2010-01-07

    申请号：DE602006010735

    申请日：2006-12-19

    Applicant: ESSILOR INT

    Inventor： CONTE DOMINIQUE ,  FOURNAND GERALD ,  JALLOULI AGNES ,  VAGHARCHAKIAN LAURIANNE

    IPC: B24B9/14 ,  B24B13/005 ,  C03C17/00 ,  G02B1/10

    Abstract: Methods for edging optical articles comprising two main faces, at least one of which being coated with an outermost layer comprising fixing the optical article to a chuck with a holding pad that adheres to both the optical article and the chuck, wherein the surface of the holding pad contacting the optical comprises an adhesive material; and edging the optical article with an edging device; wherein prior to fixing the optical article to the chuck, at least one temporary layer of an organic material is formed onto said outermost layer of the optical article, the organic material of the temporary layer comprising at least one organic compound having a fluorinated functional moiety and at least one linking functional moiety capable of establishing at least one intermolecular bond or interaction with the adhesive material of the holding pad. Optical articles obtained via these methods.

    Process for replacing an initial outermost coating layer of a coated optical lens by or depositing thereon a different coating layer
    20.
    发明专利
    Process for replacing an initial outermost coating layer of a coated optical lens by or depositing thereon a different coating layer 未知

    公开(公告)号：AU2004248264B2

    公开(公告)日：2009-08-27

    申请号：AU2004248264

    申请日：2004-06-10

    Applicant: ESSILOR INT

    Inventor： FOURNAND GERALD ,  JALLOULI AGNES

    IPC: B05D3/14 ,  C03C17/00 ,  C03C17/42 ,  G02B1/10

    Abstract: The invention concerns a process for replacing an initial outermost coating layer of a coated optical lens with a layer of a new final coating having surface properties different from those of said initial outermost coating which comprises: (a) providing a coated optical lens having an initial outermost coating layer having a surface contact angle with water of at least 65°; (b) subjecting the initial outermost coating layer to a treatment with activated chemical species at about atmospheric pressure, and for less than one minute, in order there is obtained a treated surface having a contact angle with water of 10° or less; and (c) depositing on said treated surface a layer of a final coating having surface properties different from those of said initial outermost coating.

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