LENTES OFTALMICAS LAMINADAS EN PELICULA CON RENDIMIENTO DE BISELADO CON MUELA MEJORADO.

    公开(公告)号:MX2015008470A

    公开(公告)日:2015-09-23

    申请号:MX2015008470

    申请日:2012-12-28

    Applicant: ESSILOR INT

    Abstract: Una lente óptica laminada que tiene una configuración laminar con biselado optimizado y método de fabricación de la misma; la lente óptica laminada incluye una lente de base óptica y una estructura laminar de tipo película que incluye una película externa más alejada de dicha lente; se coloca una estructura laminar de adhesivo entre la estructura laminar de tipo película y la lente de base óptica para retener permanentemente la estructura laminar de tipo película sobre la superficie de la lente de base óptica; la lente laminada se fabrica laminando una estructura laminar de tipo película que tiene una película externa a un elemento de base óptica con una estructura laminar de adhesivo; la película externa tiene un espesor de al menos 100 µm y preferentemente un espesor en el intervalo de 150 micrómetros a 300 micrómetros inclusive; la estructura laminar de adhesivo tiene un espesor en el intervalo de 5 micrómetros a 100 micrómetros inclusive y preferentemente de 25 micrómetros a 50 micrómetros inclusive.

    Glyoxal adhesive system and process for manufacturing the same

    公开(公告)号:AU2013298571A1

    公开(公告)日:2015-02-26

    申请号:AU2013298571

    申请日:2013-08-01

    Applicant: ESSILOR INT

    Abstract: An optical adhesive product and a process for manufacturing an optical adhesive product, laminated film ensembles, and laminated lenses. The optical adhesive product includes a glyoxal water solution that is pH adjusted for use as an optical adhesive that demonstrates a wet peel force strength above about 6 Newtons. A water based polymer, such as PVOH, may be added to the adhesive system. According to the process, the glyoxal adhesive system is manufactured and utilized to laminate TAC-PVA-TAC films together to form a polar film ensemble. The polar film ensemble is laminated to an optical susbtrate and in the case of an ophthalmic lens, surfaced, coated and edged. The optical adhesive product avoids film separation in the polar TAC-PAV- TAC film ensemble during edging.

    Photocurable adhesive composition and its use in the optical field

    公开(公告)号:AU2004230413C1

    公开(公告)日:2011-01-27

    申请号:AU2004230413

    申请日:2004-04-15

    Applicant: ESSILOR INT

    Abstract: The invention concerns a photocurable adhesive composition comprising, based on total weight of photopolymerizable monomers and/or oligomers of the composition: 5 to 60 wt % of at least one mono or polyacrylate monomer or oligomer thereof (A); 5 to 50 wt % of at least one thio(meth)acrylate monomer or oligomer thereof (B); and 20 to 50 wt % of at least one aromatic dimethacrylate monomer or oligomer thereof (C); with the proviso that the composition does not contain a brominated monofunctional acrylate.

    PROCESS FOR TRANSFERRING A COATING ONTO A SURFACE OF A LENS BLANK

    公开(公告)号:CA2452345C

    公开(公告)日:2010-04-13

    申请号:CA2452345

    申请日:2002-07-01

    Applicant: ESSILOR INT

    Abstract: A process for transferring a coating onto at least one optical surface of a lens blank which comprises : providing a lens blank having at least one geometrically defined surface ; providing a support having an internal surface bearing a coating and an external surface ; depositing on said geometrically defined surface of said lens blank or said coating a pre-measured amount of a curable glue ; moving relatively to each other the lens blank and the support to either bring the coating into contact with the curable glue or bring the curable glue into contact with the geometrically defined surface of the lens blank ; applying a sufficient pressure onto the external surface of the support so that the thickness of a final glue layer after curing is less than 100 micrometers ; curing the glue ; and withdrawing the mold part to recover the lens blank with the coating adhered onto its geometrically defined surface.

    Photocurable adhesive composition and its use in the optical field

    公开(公告)号:AU2004230413B2

    公开(公告)日:2010-03-11

    申请号:AU2004230413

    申请日:2004-04-15

    Applicant: ESSILOR INT

    Abstract: The invention concerns a photocurable adhesive composition comprising, based on total weight of photopolymerizable monomers and/or oligomers of the composition: 5 to 60 wt % of at least one mono or polyacrylate monomer or oligomer thereof (A); 5 to 50 wt % of at least one thio(meth)acrylate monomer or oligomer thereof (B); and 20 to 50 wt % of at least one aromatic dimethacrylate monomer or oligomer thereof (C); with the proviso that the composition does not contain a brominated monofunctional acrylate.

    PROCESS FOR APPLYING A COATED OR UNCOATED FILM ON A LENS SUBSTRATE

    公开(公告)号:CA2695938A1

    公开(公告)日:2009-02-12

    申请号:CA2695938

    申请日:2008-08-05

    Applicant: ESSILOR INT

    Abstract: A process for applying a coated or uncoated film onto a surface of a lens substrate which comprises the steps of : providing a liquid hot melt adhesive (HMA) com-position comprising: a HMA base polymer and a polymerizable monomer or oligomer applying the liquid HMA composition onto either the surface of a film or a lens substrate drying the applied liquidHMA composition moving the film and the lens substrate rela-tively to each other to bring them into contact applying pressure on the film; heating to reach a Tmax process Temperature at or above the glass transition temperature (Tg), the monomers or oligomers being liquid at the Tmax process temperature and polymerizing the monomers or oligomers while maintaining pressure and heating.

    49.
    发明专利
    未知

    公开(公告)号:DE602004016990D1

    公开(公告)日:2008-11-20

    申请号:DE602004016990

    申请日:2004-04-15

    Applicant: ESSILOR INT

    Abstract: The invention concerns a photocurable adhesive composition comprising, based on total weight of photopolymerizable monomers and/or oligomers of the composition: 5 to 60 wt % of at least one mono or polyacrylate monomer or oligomer thereof (A); 5 to 50 wt % of at least one thio(meth)acrylate monomer or oligomer thereof (B); and 20 to 50 wt % of at least one aromatic dimethacrylate monomer or oligomer thereof (C); with the proviso that the composition does not contain a brominated monofunctional acrylate.

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