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    23.
    发明专利
    未知

    公开(公告)号：FR2819258A1

    公开(公告)日：2002-07-12

    申请号：FR0100343

    申请日：2001-01-11

    Applicant: ESSILOR INT

    Inventor： TARDIEU PASCALE ,  MAISONNIER SYLVETTE ,  ROBERT ANNE ,  CANO JEAN PAUL

    IPC: G02C7/10 ,  C08F2/44 ,  C08K5/01 ,  C08L57/00 ,  C08F220/18 ,  C09K9/02 ,  G02B1/04

    Abstract: The invention concerns a method for obtaining a photochromic latex comprising free radical polymerisation in aqueous emulsion of an initial polymerisable mixture, comprising one or several polymerisable monomer(s) and one or several photochromic compound(s) and adding to the initial mixture, during polymerisation or to the final latex at least an agent stabilising the photochromic properties selected among cyclopentene, cyclohexene, cycleheptene, cyclooptene compounds and ethylenically unsaturated compounds, comprising, in position alpha relative to the ethylenic unsaturation, a carbon atom bearing a free hydroxy group. The invention is useful for making photochromic films.

    PROCEDE D'OBTENTION D'UN LATEX PHOTOCHROMIQUE
    24.
    发明专利
    PROCEDE D'OBTENTION D'UN LATEX PHOTOCHROMIQUE 未知

    公开(公告)号：CA2397673A1

    公开(公告)日：2002-05-23

    申请号：CA2397673

    申请日：2001-11-13

    Applicant: ESSILOR INT

    Inventor： TARDIEU PASCALE ,  MAISONNIER SYLVETTE ,  CANO JEAN-PAUL ,  ROBERT ANNE

    IPC: G03C1/725 ,  C08F2/18 ,  C08F2/24 ,  C08F2/44

    Abstract: Le procédé comprend: (1) la préparation d'un mélange comprenant au moins un monomère organique Z à groupement C=C, polymérisable par voie radicalaire, a u moins un composé photochromique organique, au moins un agent tensio-actif, d e l'eau et éventuellement un amorceur de polymérisation; (2) le traitement du mélange obtenu à l'étape (1) pour former une miniémulsion comprenant une pha se organique dispersée sous forme de gouttelettes ayant un diamètre de 50 ô 500 nm, de préférence 50 à 300 nm, dans une phase aqueuse; (3) l'addition à la miniémulsion d'un amorceur de polymérisation, si celui-ci n'a pas été introduit lors de l'étape (1), ou d'une quantité supplémentaire d'amorceur p ar rapport à l'étape (1); (4) la polymérisation du mélange réactionnel obtenu à l'étape (3), et (5) la récupération du latex photochromique. Application à l a formation de films photochromiques.

    25.
    发明专利
    未知

    公开(公告)号：NO307659B1

    公开(公告)日：2000-05-08

    申请号：NO940733

    申请日：1994-03-03

    Applicant: ESSILOR INT

    Inventor： VANEECKHOUTTE PHILIPPE ,  LECLAIRE YVES ,  ROBERT ANNE

    IPC: B29K83/00 ,  B29D11/00 ,  C08G77/14 ,  C08G77/22 ,  C08K13/02 ,  C09D183/04 ,  C09D183/06

    Abstract: Curable composition for antiabrasion coating, including the constituents A - a hydrolysate of an epoxytrialkoxysilane, B - a hydrolysate of a silane of formula (I) in which each of T and T produces an OH group by hydrolytic treatment and Z and Z are unreactive organic groups, C - colloidal silica, D - a specific aluminium catalyst, E - optionally, an organic solvent whose boiling point is between 70@C and 140@C, and the corresponding coated articles, optionally treated against reflections.

    28.
    发明专利
    未知

    公开(公告)号：DE69405613T2

    公开(公告)日：1998-02-19

    申请号：DE69405613

    申请日：1994-03-07

    Applicant: ESSILOR INT

    Inventor： VANEECKHOUTTE PHILIPPE ,  LECLAIRE YVES ,  ROBERT ANNE

    IPC: B29D11/00 ,  B29K83/00 ,  C08G77/14 ,  C08G77/22 ,  C08K13/02 ,  C09D183/04 ,  C09D183/06 ,  C08J7/04 ,  C08K5/00

    Abstract: Curable composition for antiabrasion coating, including the constituents A - a hydrolysate of an epoxytrialkoxysilane, B - a hydrolysate of a silane of formula (I) in which each of T and T produces an OH group by hydrolytic treatment and Z and Z are unreactive organic groups, C - colloidal silica, D - a specific aluminium catalyst, E - optionally, an organic solvent whose boiling point is between 70@C and 140@C, and the corresponding coated articles, optionally treated against reflections.

    29.
    发明专利
    未知

    公开(公告)号：BR9508143A

    公开(公告)日：1997-11-04

    申请号：BR9508143

    申请日：1995-06-20

    Applicant: ESSILOR INT

    Inventor： CANO JEAN-PAUL ,  LECLAIRE YVES ,  ROBERT ANNE

    IPC: G02C7/02 ,  B05D1/38 ,  B05D3/10 ,  B05D3/14 ,  B05D5/00 ,  C08F112/08 ,  C08F118/18 ,  C08F120/14 ,  C08G18/48 ,  C08J7/00 ,  C08J7/04 ,  C09D171/02 ,  C09D175/04 ,  G02B1/04 ,  G02B1/10 ,  G02B1/11

    Abstract: PCT No. PCT/FR95/00812 Sec. 371 Date May 7, 1997 Sec. 102(e) Date May 7, 1997 PCT Filed Jun. 20, 1995 PCT Pub. No. WO96/00403 PCT Pub. Date Jan. 4, 1996An ophthalmic lens consisting of a substrate made of organic glass, of an abrasion-resistant coating, of a layer of impact-resistant primer and of an inorganic antireflective coating, wherein the surface of the said substrate is covered with the abrasion-resistant coating and in that the impact-resistant primer layer is inserted between the said abrasion-resistant layer and the anti-reflective coating, wherein the abrasion-resistant coating comprises a hydrolyzate or a mixture of hydrolyzates of a silane compound of formula: in which: R1 denotes an organic group containing an epoxy group; R2 is a hydrocarbon radical which has 1 or 2 carbon atoms; and R3 is a hydrocarbon group which has from 1 to 4 carbon atoms, and a is 0 or 1 in value.

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