公开(公告)号：FR2874007B1

公开(公告)日：2007-11-23

申请号：FR0451767

申请日：2004-08-03

Applicant: ESSILOR INT

Inventor： MATHERON MURIEL ,  BITEAU JOHN ,  CANO JEAN PAUL ,  BOILOT JEAN PIERRE ,  GACOIN THIERRY

IPC: C03C17/32 ,  C09D183/02 ,  C09D183/04 ,  G02B1/04 ,  G02B1/10 ,  G02B3/00 ,  G02C7/02

Abstract: The invention relates to a method of producing a substrate which is coated with a mesoporous layer and to the use thereof in ophthalmic optics. The inventive method comprises the following steps comprising: preparing a precursor sol containing (i) a precursor agent that is selected from compounds having formula M(X)4 (I), in which X is a hydrolysable group and M represents silicon or a tetravalent metal and mixtures thereof, (ii) at least one organic solvent, (iii) at least one pore-forming agent and (iv) water; depositing a film of the precursor sol on a main surface of the substrate; optionally consolidating the mesoporous structure of the deposited film; eliminating the pore-forming agent; and recovering the substrate coated with the mesoporous layer. The method is characterized in that: (i) the pore-forming agent is eliminated at a temperature of less than or equal to 150° C.; and (ii) the method comprises a step involving the introduction of at least one reactive agent bearing at least one hydrophobic group, before the deposition step and/or after said step.

公开(公告)号：CA2652288A1

公开(公告)日：2007-11-22

申请号：CA2652288

申请日：2006-05-15

Applicant: ESSILOR INT

Inventor： BITEAU JOHN ,  BORYSLAWSKI JOSEPH

IPC: B29D11/00

Abstract: The invention relates to an improvement for applying a layered structure (1) onto a convex surface of a lens (10). After thermoforming the layered st ructure, a curvature direction of the layered structure is inverted. The str ucture is then applied on the lens surface by continuously pushing the struc ture (1) against the lens surface, starting from a contact point between a c onvex surface of the structure and the convex surface of the lens. The curva ture direction of the layered structure is then inverted again, so that it r ecovers the curvature direction that resulted from thermoforming. Stresses w ithin the layered structure are then reduced, and the structure can be assem bled with the lens without defects.

公开(公告)号：CA2583141A1

公开(公告)日：2006-04-13

申请号：CA2583141

申请日：2005-09-30

Applicant: ESSILOR INT

Inventor： BITEAU JOHN ,  FANAYAR MYRIAM

IPC: G02B5/30

公开(公告)号：CA2575970A1

公开(公告)日：2006-03-02

申请号：CA2575970

申请日：2005-05-03

Applicant: ESSILOR INT

Inventor： MATHERON MURIEL ,  BOILOT JEAN-PIERRE ,  CANO JEAN-PAUL ,  BITEAU JOHN ,  GACOIN THIERRY

IPC: C09D183/04 ,  C09D183/02 ,  G02B1/04 ,  G02B1/10

公开(公告)号：FR2874007A1

公开(公告)日：2006-02-10

申请号：FR0451767

申请日：2004-08-03

Applicant: ESSILOR INT

Inventor： MATHERON MURIEL ,  BITEAU JOHN ,  CANO JEAN PAUL ,  BOILOT JEAN PIERRE ,  GACOIN THIERRY

IPC: C03C17/32 ,  C09D183/02 ,  C09D183/04 ,  G02B1/04 ,  G02B1/10 ,  G02B3/00 ,  G02C7/02

Abstract: Le procédé comprend :- la préparation d'un sol précurseur d'une couche mésoporeuse comprenant un agent précurseur choisi parmi les composés de formule M(X)4 (I), dans laquelle X est un groupe hydrolysable et M représente le silicium ou un métal tétravalent ; au moins un solvantorganique ; au moins un agent porogène ; de l'eau ; et éventuellement un catalyseur d'hydrolyse des groupements X ;- le dépôt d'un film du sol précurseur sur un substrat et la formation d'une structure mésoporeuse;- l'élimination de l'agent porogène ; et- la récupération du substrat ;le procédé étant caractérisé en ce que :(i) l'élimination de l'agent porogène s'effectue à une température ≤ 150°C ; et(ii) le procédé comprend l'introduction d'au moins un agent réactif à groupe hydrophobe avant et/ou après l'étape de dépôt (b).

公开(公告)号：FR2868553A1

公开(公告)日：2005-10-07

申请号：FR0403509

申请日：2004-04-02

Applicant: ESSILOR INT

Inventor： BEGON CEDRIC ,  BITEAU JOHN ,  BIVER CLAUDINE ,  BOSMANS RICHARD ,  CANO JEAN PAUL ,  GIRAUDET GUILLAUME ,  MUISENER RICHARD

IPC: G02C7/12

Abstract: Un élément de vision transparent et polarisant (2) est divisé en plusieurs zones. Deux au moins des zones sont associées à un filtre de polarisation lumineuse. La lumière traversant l'élément est affectée différemment pour deux desdites zones en fonction d'une direction de polarisation de ladite lumière. Au moins un filtre de polarisation est orienté verticalement, et au moins un filtre de polarisation est orienté horizontalement par rapport à la position d'usage de l'élément.

公开(公告)号：AU2004262099A1

公开(公告)日：2005-02-10

申请号：AU2004262099

申请日：2004-07-28

Applicant: ESSILOR INT

Inventor： BITEAU JOHN ,  RYCHEL DOMINIQUE ,  FANAYAR MYRIAM ,  MASSART NATHALIE

IPC: G02B1/11 ,  C08J7/04 ,  C09D183/08

Abstract: The invention relates to an optical article, for example, an ophthalmic lens, comprising at least one multilayer anti-reflective coating on a transparent substrate made from organic or mineral glass. Said coating comprises successively and starting at the substrate, a layer of material with high refractive index (HI), made from a hybrid organic/inorganic matrix within which are dispersed particles of mineral oxide or chalcogenide with a diameter of 2 to 50 nm and a layer of material with low refractive index (BI), obtained by hardening of a composition comprising at least one silane precursor (I) with 4 hydrolysable groups and at least one fluorosilane precursor (II), said second composition comprising at least 10% in mass of fluorine in a theoretical dry extract and with a molar ratio I/I+II greater than 80%.

公开(公告)号：DE69912642T2

公开(公告)日：2004-10-07

申请号：DE69912642

申请日：1999-12-08

Applicant: ESSILOR INT

Inventor： BITEAU JOHN ,  BOILOT JEAN-PIERRE ,  CHAPUT FREDERIC

IPC: C01B33/16 ,  C03C1/00 ,  C03C17/25

Abstract: The method consists in hydrolysing an initial volume Vse of a precursor material comprising at least one polyalkoxysilane with a quantity of water such that x ⁢ ⁢ H 2 ⁢ O x ⁢ ⁢ Si >= 10 , ⁢ and where x H 2 0 and x Si represent the number of moles of H 2 0 and Si present, respectively, the concentration of the hydrolysate up to a volume substantially equal to the initial volume Vsi, leaving the concentrated hydrolysate until segregation into an aqueous phase and an organo-silicon phase, and recovery of the organo-silicon phase. A product can be obtained which comprises an organo-silicon sol comprising silicon species T 1 , T 2 , and T 3 , wherein the molar fraction of species T 2 is equal or greater than 50%, comprising a condensation rate equal to or greater than 0.65, and further defined as lacking water, as determined by analyzing a sample of said organo-silicon sol by 1 H NMR and observing the absence of peak corresponding to water.

公开(公告)号：FR2787100B1

公开(公告)日：2001-03-09

申请号：FR9815825

申请日：1998-12-15

Applicant: ESSILOR INT

Inventor： BITEAU JOHN ,  BOILOT JEAN PIERRE ,  CHAPUT FREDERIC

IPC: C01B33/16 ,  C03C1/00 ,  C01B33/145

Abstract: The method consists in hydrolysing an initial volume Vse of a precursor material comprising at least one polyalkoxysilane with a quantity of water such that x ⁢ ⁢ H 2 ⁢ O x ⁢ ⁢ Si >= 10 , ⁢ and where x H 2 0 and x Si represent the number of moles of H 2 0 and Si present, respectively, the concentration of the hydrolysate up to a volume substantially equal to the initial volume Vsi, leaving the concentrated hydrolysate until segregation into an aqueous phase and an organo-silicon phase, and recovery of the organo-silicon phase. A product can be obtained which comprises an organo-silicon sol comprising silicon species T 1 , T 2 , and T 3 , wherein the molar fraction of species T 2 is equal or greater than 50%, comprising a condensation rate equal to or greater than 0.65, and further defined as lacking water, as determined by analyzing a sample of said organo-silicon sol by 1 H NMR and observing the absence of peak corresponding to water.