12.
    发明专利
    未知

    公开(公告)号:DE69317121D1

    公开(公告)日:1998-04-02

    申请号:DE69317121

    申请日:1993-11-05

    Applicant: ESSILOR INT

    Abstract: A radiation-curable coating composition for ophthalmic lens is disclosed which comprises a mixture of a monoepoxysilane, colloidal silica, an alkylalkoxysilane or tetraalkoxysilane, and an ultraviolet activated photoinitiator capable of initiating a cationic cure of such composition. The photoinitiator is an aromatic onium salt or an iron arene salt complex.

    Glyoxal adhesive system and process for manufacturing the same

    公开(公告)号:AU2013298571B2

    公开(公告)日:2018-06-21

    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.

    PROCESS FOR MAKING A COATED OPTICAL ARTICLE FREE OF VISIBLE FINING LINES

    公开(公告)号:CA2552369C

    公开(公告)日:2012-09-04

    申请号:CA2552369

    申请日:2004-12-30

    Applicant: ESSILOR INT

    Abstract: The invention concerns a process for making a coated optical lens blank free of visible fining lines which comprises : (ix) providing an optical article having at least one fined but unpolished geometrically defined main face ; (x) providing a mold part having an internal and external surface; (xi) depositing on said main face of said optical article or on the internal surface of the mold part a requisit amount of a liquid curable coating composition ; (xii) moving relatively to each other the optical article and the mold part to either bring the coating composition into contact with the main face of the optical article or into contact with the internal face of the mold part; (xiii) applying pressure to the mold part to spread the liquid curable coating composition on said main face and form a uniform liquid coating composition layer onto the main face; (xiv) curing the liquid coating composition layer; (xv) withdrawing the mold part; and recovering the free of visible fining lines coated optical article.

    Process for applying a coating film onto a surface of a lens substrate

    公开(公告)号:AU2008297393B8

    公开(公告)日:2012-06-28

    申请号:AU2008297393

    申请日:2008-07-24

    Applicant: ESSILOR INT

    Abstract: A process for applying a film onto a lens surface and bearing a coating which is sensitive to the temperature; applying a pressure on the film to urge it against the lens (L) with a curable adhesive there between to conform the film to the lens maintaining pressure on the film, activating the adhesive and promoting adhesion between the film and the lens stopping activation and releasing applied pre.ssure; and recovering the lens with the film adhered thereon; wherein during pressure application step and activation step the second main surface of the lens substrate (L) is at least partly in contact with a matching surface of a non deformable heat sink block (21) and during activation step the first main surface of the lens substrate is heated at a temperature T, while the second main surface of the lens substrate is essentially heated by conduction through the lens substrate, whereby the temperature on the second main surface of the lens substrate is at least 10°C lower than temperature T without the use of any active cooling.

    Process for applying a coating film onto a surface of a lens substrate

    公开(公告)号:AU2008297393A1

    公开(公告)日:2009-03-19

    申请号:AU2008297393

    申请日:2008-07-24

    Applicant: ESSILOR INT

    Abstract: A process for applying a coated or uncoated film onto a first main surface of a lens substrate which can be implemented in a short period of time without any risk of deformation of the lens substrate and which avoids overheating of a temperature sensitive coating borne by a second main surface of the lens substrate opposite to the first main surface. The process combines a unique heating and UV as an activation step for the adhesives. Also contemplated are lenses produced by the process.

    COMPOSICION ADHESIVA FOTOCURABLE Y SU UTILIZACION EN EL CAMPO OPTICO.

    公开(公告)号:ES2314392T3

    公开(公告)日:2009-03-16

    申请号:ES04727565

    申请日:2004-04-15

    Applicant: ESSILOR INT

    Abstract: Composición adhesiva fotocurable que comprende sobre la base del peso total de los monómeros y/u oligómeros fotocurables de la composición: 5 a 60% en peso de por lo menos un monómero de mono o poliacrilato u oligómero del mismo (A); 5 a 50% en peso de por lo menos un monómero de tio(met)acrilato u oligómero del mismo (B) que presenta por lo menos un grupo funcional de tio(met)acrilato (Ver fórmula) en el que R 1 es H o CH3; y 20 a 50% de por lo menos un monómero de dimetacrilato aromático o un oligómero del mismo (C); con la condición de que la composición no contenga un acrilato bromado monofuncional.

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