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公开(公告)号:DE69838093T2
公开(公告)日:2008-04-10
申请号:DE69838093
申请日:1998-11-06
Applicant: ESSILOR INT
Inventor: DEGAND JEAN-PIERRE , ROBERT ANNE
IPC: G02B1/10
Abstract: The ophthalmic lens according to the invention includes a substrate made of organic glass, at least one abrasion-resistant coating and at least one primer layer inserted between the substrate and the abrasion-resistant coating, the impact-resistant primer layer being formed from a latex composition including at least one latex comprising butadiene units.
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公开(公告)号:FR2869039B1
公开(公告)日:2007-11-30
申请号:FR0450988
申请日:2004-05-18
Applicant: ESSILOR INT
Inventor: TARDIEU PASCALE , MAISONNIER SYLVETTE , ROBERT ANNE
Abstract: The invention is dedicated to a colored latex comprising a mixture of an uncolored initial latex and at least one initial aqueous dispersion of at least one pigment being under the form of particles, wherein the particles of the pigment(s) are water-insoluble, and an amount of at least 90% of the particles of the one or more pigment(s) have a particle size of 370 nm or less, in the initial aqueous dispersion. The invention also relates to a process for preparing such colored latex and an ophthalmic lens coated with a layer of such colored latex.
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公开(公告)号:DE60205225T2
公开(公告)日:2006-06-01
申请号:DE60205225
申请日:2002-01-11
Applicant: ESSILOR INT
Inventor: TARDIEU PASCALE , MAISONNIER SYLVETTE , ROBERT ANNE , CANO JEAN-PAUL
Abstract: The invention relates to methods for obtaining the photochromic latex comprising the polymerization in aqueous emulsion of an initial polymerizable mixture, comprising one or more monomers polymerizable by free-radical mechanism and one or more photochromic compounds and the addition to the initial polymerizable mixture, during the polymerization of the initial polymerizable mixture or to the final latex of at least one agent for stabilizing the photochromic properties. Such latexes can be used in the production of photochromic films. Such films may be used, for example, on optical lenses.
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64.
公开(公告)号:ES2244755T3
公开(公告)日:2005-12-16
申请号:ES02710986
申请日:2002-01-11
Applicant: ESSILOR INT
Inventor: TARDIEU PASCALE , MAISONNIER SYLVETTE , ROBERT ANNE , CANO JEAN-PAUL
Abstract: Procedimiento para la obtención de un látex fotocrómico, que comprende una polimerización en emulsión acuosa de una mezcla polimerizable inicial que comprende uno o más monómeros orgánicos que contienen grupos C=C que son polimerizables por un mecanismo de radicales libres y uno o más compuestos fotocrómicos hasta que se obtiene un látex final, caracterizado porque comprende la adición a la mezcla polimerizable inicial, durante la polimerización de la mezcla polimerizable inicial o para el látex final de una cantidad efectiva de por lo menos un agente para estabilizar las propiedades fotocrómicas seleccionadas de entre compuestos de ciclopenteno, ciclohexeno, ciclohepteno, cicloocteno y compuestos que contienen una insaturación etilénica que no forma parte de un anillo aromático y que contiene, en la posición con respecto a la insaturación etilénica, un átomo de carbono que presenta un grupo hidroxi libre.
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公开(公告)号:DE60205225D1
公开(公告)日:2005-09-01
申请号:DE60205225
申请日:2002-01-11
Applicant: ESSILOR INT
Inventor: TARDIEU PASCALE , MAISONNIER SYLVETTE , ROBERT ANNE , CANO JEAN-PAUL
Abstract: The invention relates to methods for obtaining the photochromic latex comprising the polymerization in aqueous emulsion of an initial polymerizable mixture, comprising one or more monomers polymerizable by free-radical mechanism and one or more photochromic compounds and the addition to the initial polymerizable mixture, during the polymerization of the initial polymerizable mixture or to the final latex of at least one agent for stabilizing the photochromic properties. Such latexes can be used in the production of photochromic films. Such films may be used, for example, on optical lenses.
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公开(公告)号:MXPA02006995A
公开(公告)日:2004-02-26
申请号:MXPA02006995
申请日:2001-11-13
Applicant: ESSILOR INT
Inventor: ROBERT ANNE
Abstract: El proceso comprende: (1) la preparacion de una mezcla que comprende al menos un monomero organico Z con un grupo C=C, polimerizable por un proceso de radicales, al menos un compuesto fotocromico organico, al menos un tensoactivo, agua y opcionalmente un agente de imprimacion de la polimerizacion; (2) el tratamiento de la mezcla obtenida en la etapa (1), con objeto de formar una miniemulsion que consiste de una fase organica dispersada en forma de gotas que tienen un diametro de 50 a 500 nm, y preferiblemente 50 a 300 nm, en una fase acuosa; (3) la adicion a la miniemulsion de un agente de imprimacion de la polimerizacion, si esto ultimo no se introdujo en la etapa (1), o de una cantidad de agente de imprimacion adicional a aquella agregada en la etapa (1); (4) la polimerizacion de la mezcla de reaccion obtenida en la etapa (3), y (5) la recuperacion del latex fotocromico.
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公开(公告)号:FR2816950A1
公开(公告)日:2002-05-24
申请号:FR0014903
申请日:2000-11-17
Applicant: ESSILOR INT
Inventor: ROBERT ANNE , TARDIEU PASCALE , MAISONNIER SYLVETTE , CANO JEAN PAUL
IPC: G03C1/725 , C08F2/18 , C08F2/24 , C08F2/44 , C08J3/20 , C08F120/16 , C08K5/1545 , C08K5/357 , G02B1/04 , G02C7/10
Abstract: Preparation of a photochromic latex comprises: (1) preparing a mixture of a radically polymerizable monomer with a C=C group, an organic photochromic compound, a surfactant, water and optionally a polymerization aid; (2) forming a micro-emulsion of an organic phase of droplets of diameter 50-500 (50-300) nm in an aqueous phase; (3) adding a polymerization aid; (4) polymerizing; and (5) recovering the latex.
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公开(公告)号:AU4075701A
公开(公告)日:2001-09-17
申请号:AU4075701
申请日:2001-03-02
Applicant: ESSILOR INT
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公开(公告)号:FR2781889B1
公开(公告)日:2000-11-03
申请号:FR9809826
申请日:1998-07-31
Applicant: ESSILOR INT
Inventor: DEGAND JEAN PIERRE , ROBERT ANNE
IPC: B29D11/00 , B29K75/00 , C08L5/00 , C08L21/02 , C08L33/06 , G02C7/02 , C08L75/04 , C09D5/00 , C09D133/00 , C09D175/04 , G02B1/10 , G02B1/04 , B32B27/06
Abstract: The present invention relates to an organic glass ophthalmic lens having an impact-resistant primer layer based on a polyurethane latex and its manufacturing process.
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公开(公告)号:FR2771185A1
公开(公告)日:1999-05-21
申请号:FR9714445
申请日:1997-11-18
Applicant: ESSILOR INT
Inventor: DEGAND JEAN PIERRE , ROBERT ANNE
Abstract: Ophthalmic lens comprises substrate of organic glass; at least one anti-scratch coating; and an anti-shock primary layer between substrate and coating. The primary layer being formed from latex composition containing at least one latex with butadiene groups. An Independent claim is also included for a method for making the lens.
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