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公开(公告)号：AT258970T
公开(公告)日：2004-02-15
申请号：AT00906415
申请日：2000-02-17
Applicant: ESSILOR INT
Inventor： MAISONNIER SYLVETTE , TARDIEU PASCALE , CANO JEAN-PAUL , WAJS GEORGES , VAIRON JEAN-PIERRE , CHARLEUX BERNADETTE
Abstract: This invention relates to a method for preparing a photochromic latex, photochromic thin films obtained therefrom, and articles coated with such thin films, in particular photochromic ophthalmic lenses.
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公开(公告)号：AU2676400A
公开(公告)日：2000-09-14
申请号：AU2676400
申请日：2000-02-14
Applicant: ESSILOR INT
Inventor： FAVEROLLE FRANCINE , CANO JEAN-PAUL , WAJS GEORGES
IPC: C08J7/04 , C09D151/00 , G02B1/10
Abstract: The ophthalmic lens according to the invention comprises a substrate made of organic glass, having front and rear main faces, at least one primer layer deposited on at least one of the main faces of the substrate, the said primer layer comprising an aggregate of at least two-phase particles, a first phase of which consists of a polymer P1 with a soft character having a glass transition temperature (Tg) of less than 20° C. and a second phase of which consists of a polymer P2 with a hard character having a glass transition temperature (Tg) of greater than 50° C., and at least one layer of an abrasion-resistant coating composition deposited on the primer layer. Application to lenses for spectacles.
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公开(公告)号：FR2790317A1
公开(公告)日：2000-09-01
申请号：FR9902438
申请日：1999-02-26
Applicant: ESSILOR INT
Inventor： FAVEROLLE FRANCINE , CANO JEAN PAUL , WAJS GEORGES
IPC: C08J7/04 , C09D151/00 , G02B1/10 , G02C7/02
Abstract: The inventive lens comprises an organic glass substrate having front and rear main surfaces, at least one primer coat deposited on at least one of the main surfaces of the substrate, whereby said primer coat consists of a mixture of at least biophasic particles, whereby a first phase is composed of a P1 soft-character polymer with a glass transition temperature (Tg) of less than 20 DEG C and a second phase is composed of a hard-character P2 polymer with a glass transition temperature (Tg) of more than 50 DEG C and at least one coat of an anti-abrasive covering composition deposited on the primer. The invention can be used for eye glasses.
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公开(公告)号：CA2330496A1
公开(公告)日：2000-08-31
申请号：CA2330496
申请日：2000-02-14
Applicant: ESSILOR INT
Inventor： CANO JEAN-PAUL , WAJS GEORGES , FAVEROLLE FRANCINE
IPC: C08J7/04 , C09D151/00 , G02B1/10
Abstract: La lentille ophtalmique selon l'invention comprend un substrat en verre organique ayant des faces principales avant et arrière, au moins une couche de primaire déposée sur au moins une des faces principales du substrat, ladite couche de primaire comprenant un agrégat de particules au moins biphasiques dont une première phase est constituée d'un polymère P1 à caractère mou ayant une température de transition vitreuse (Tg) inférieure à 20 ~C et une deuxième phase est constituée par un polymère P2 à caractère dur ayant une température de transition vitreuse (Tg) supérieure à 50 ~C, et au moins une couche d'une composition de revêtement anti-abrasion déposée sur la couche de primaire. Application aux verres de lunettes.
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公开(公告)号：DE69203010D1
公开(公告)日：1995-07-27
申请号：DE69203010
申请日：1992-03-05
Applicant: ESSILOR INT
Inventor： YEAN LEANIRITH , WAJS GEORGES , MARTIN GERARD , GUERRERO PATRICK
IPC: C08L101/00 , B29D11/00 , G02B1/04 , G02B3/00 , G02C7/02
Abstract: This procedure is of the kind in which the absorption, by a base-polymer material, of an additive composition enclosing at least one monomer capable of leading to a polymer of different refractive index is ensured. … According to the invention, by choosing a swelling composition as the additive composition, a first preform (P1) is produced, with a first geometry (G1), from a polymer material at a rate of advance sufficient for it to be self-supporting, a confinement volume (14) is defined between this first preform and an abutment element having a second geometry (G2) corresponding to a greater volume, and it is brought into contact there with a quantity of swelling additive composition sufficient for the swelling, to which it is then subjected, to cause it to match, under stress, this second geometry (G2). … Application, especially, to the production of ophthalmic lenses. … …
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Patent Agency Ranking26.发明专利
公开(公告)号：AU644723B2
公开(公告)日：1993-12-16
申请号：AU1146092
申请日：1992-03-06
Applicant: ESSILOR INT
Inventor： YEAN LEANIRITH , WAJS GEORGES , MARTIN GERARD , GUERRERO PATRICK
Abstract: This procedure is of the kind in which the absorption, by a base-polymer material, of an additive composition enclosing at least one monomer capable of leading to a polymer of different refractive index is ensured. … According to the invention, by choosing a swelling composition as the additive composition, a first preform (P1) is produced, with a first geometry (G1), from a polymer material at a rate of advance sufficient for it to be self-supporting, a confinement volume (14) is defined between this first preform and an abutment element having a second geometry (G2) corresponding to a greater volume, and it is brought into contact there with a quantity of swelling additive composition sufficient for the swelling, to which it is then subjected, to cause it to match, under stress, this second geometry (G2). … Application, especially, to the production of ophthalmic lenses. … …
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公开(公告)号：DE3881647T2
公开(公告)日：1993-10-28
申请号：DE3881647
申请日：1988-10-20
Applicant: ESSILOR INT
Inventor： FRANCES JEAN-MARC , WAJS GEORGES
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公开(公告)号：DE69001587D1
公开(公告)日：1993-06-17
申请号：DE69001587
申请日：1990-07-03
Applicant: ESSILOR INT
Inventor： YEAN LEANIRITH , WAJS GEORGES , MARTIN GERARD , GUERRERO PATRICK
IPC: G01N21/41 , B01J4/00 , C08F2/00 , C08F2/02 , C08F18/14 , C08F18/24 , C08F218/00 , C08F263/00 , G02B1/04 , G02C7/02 , G02C7/04 , B29D11/00
Abstract: The process according to the invention is of the kind according to which an additive substance (11) is diffused in a controlled manner within a base substance (10) which, made up of at least one partially polymerised monomer capable of resulting in a homopolymer of refractive index N1, is in the state of a gel, the additive substance itself being made up of at least one monomer capable of producing a homopolymer of refractive index N2 which differs from N1. According to the invention the additive substance (11) chosen is a mixture of at least two monomers (A, B) and the composition of this mixture is varied with time. Application to the production of components made of synthetic substance of optical quality suited especially to the production of ophthalmic lenses.
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公开(公告)号：FR2617763B1
公开(公告)日：1989-12-01
申请号：FR8709619
申请日：1987-07-07
Applicant: ESSILOR INT
Inventor： BOURSET CLAUDE , WAJS GEORGES
Abstract: In this method of manufacturing a flexible contact lens from a protein biological material, such as a protein polymer of the gelatine type or a type IV enriched human collagen, a hydrogel is first made by hydrating the protein biological material, in water or a physiological serum. A lens preform is then made from the hydrogel at a temperature between ambient temperature and the temperature at which the material liquefies, at which temperature the hydrogel has a paste-like consistency. This preform, which reproduces the shape of the finished lens with a greater or lesser degree of accuracy, but always with excess material, is then placed in a mold made from a low-loss dielectric material. The mold is in at least two parts which, when locked together, define a three-dimensional shape and a finished lens surface state. The hydrogel is then liquefied by irradiating the mold with an electromagnetic field at a frequency between 108 and 1010 Hz. The parts of the mold are then locked together and the hydrogel is then gelified by cooling it in the mold. Finally, the hydrogel is then removed from the mold and is cross-linked by contact with a cross-linking agent such as an aldehyde. The resulting lenses have excellent shape and surface state characteristics and are very well tolerated biologically.
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公开(公告)号：FR2565160A1
公开(公告)日：1985-12-06
申请号：FR8408710
申请日：1984-06-04
Applicant: ESSILOR INT
Inventor： WAJS GEORGES
Abstract: A starting solution comprising one or more noncrystalline natural proteinaceous polymers of animal or vegetable origin is molded and gelled in a lens shaped mold and then removed from the mold. Thereafter the gel is crosslinked by immersion in a liquid containing a crosslinking agent.
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