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    51.
    发明专利
    未知

    公开(公告)号：DE69313997D1

    公开(公告)日：1997-10-23

    申请号：DE69313997

    申请日：1993-12-21

    Applicant: ESSILOR INT

    Inventor： KEITA GABRIEL ,  RENAUDINEAU JOEL

    IPC: G02C7/02 ,  B29C39/00 ,  B29D11/00 ,  B29K33/00 ,  B29L11/00 ,  C08F20/26 ,  C08F20/38 ,  C08F220/10 ,  C08F220/28 ,  C08F220/30 ,  C08F290/00 ,  C08F290/06 ,  G02B1/04

    Abstract: Polymer composition resulting from the polymerisation of a polymerisable composition comprising: - at least 50 % by weight of a monomer or of a mixture of monomers corresponding to the formula I in which R1 and R2, which are identical or different, denote hydrogen or C1-C6 alkyl; X denotes m + n is between 0 and 10 - 0 to 50 % by weight of one or a number of mono- or polyfunctional methacrylic, acrylic or vinyl comonomers (II) - from 0.5 to 15 % with respect to the weight of the components I + II of a compound of formula (III) in which R3 and R4 denote hydrogen or else one of the radicals R3 or R4 is a hydrogen atom whereas the other forms a ring with R7 and R5, R6 and R7 are hydrogen or alkyl which can be substituted by OH and/or interrupted.

    СПОСОБ КЛАССИФИКАЦИИ ЛИНЗ В ОТНОШЕНИИ ЗАЩИТЫ ОТ ОБУСЛОВЛЕННОГО UV-ИЗЛУЧЕНИЕМ ВРЕДНОГО ФАКТОРА
    52.
    发明专利
    СПОСОБ КЛАССИФИКАЦИИ ЛИНЗ В ОТНОШЕНИИ ЗАЩИТЫ ОТ ОБУСЛОВЛЕННОГО UV-ИЗЛУЧЕНИЕМ ВРЕДНОГО ФАКТОРА 未知

    公开(公告)号：EA026427B1

    公开(公告)日：2017-04-28

    申请号：EA201400626

    申请日：2012-12-13

    Applicant: ESSILOR INT (COMPAGNIE GENERALE D'OPTIQUE)

    Inventor： CITEK KARL ,  BAILLET GILLES ,  DE AYGUAVIVES FRANCISCO ,  KEITA GABRIEL

    IPC: G01N21/33 ,  A61F9/02 ,  B07C5/342 ,  G01J1/42 ,  G01M11/02 ,  G02C7/10

    Abstract: Дляклассификациилинзы (1) вотношениизащитыотобусловленного UV-излучениемвредногофакторавычисляютзначениепоказателя. Указанноезначениепоказателяоснованонаинтегрированномзначениикоэффициентапропускания UV-излучениячерезлинзу (1) иинтегрированномзначениикоэффициентаотражения UV-излучения, относящегосяк заднейповерхности (1b) линзы (1). Такимобразом, значениепоказателяпринимаетвовниманиедействительныеусловияношения, где UV-облучениеглазаобусловленокоэффициентомпропускания (Т) черезлинзу (1) иликоэффициентомотражения (R) назаднейповерхности (1b) линзы (1). Соответствующиезначенияпоказателей, полученныедлянаборалинз (1), обеспечиваютпростуюсортировкулинзв отношенииэффективностизащитыот UV-излучения.

    METHOD FOR MAKING TRANSPARENT POLYTHIOURETHANE SUBSTRATES IN PARTICULAR OPTICAL SUBSTRATES
    56.
    发明专利
    METHOD FOR MAKING TRANSPARENT POLYTHIOURETHANE SUBSTRATES IN PARTICULAR OPTICAL SUBSTRATES 未知

    公开(公告)号：CA2465796C

    公开(公告)日：2011-01-04

    申请号：CA2465796

    申请日：2002-11-04

    Applicant: ESSILOR INT

    Inventor： KEITA GABRIEL ,  OBORDO JOEY OLIVEROS ,  MCCLIMANS PAMELA ANNE ,  TURSHANI YASSIN YUSEF

    IPC: C08G18/10 ,  C08G18/72 ,  C08G18/38 ,  G02B1/04

    Abstract: A method of fast curing polythiourethane transparent casted substrate, usable for making optical articles such as ophthalmic lenses, which comprises the steps of: 1) Providing a first componentA comprising a polythiourethane prepolymer having isocyanate or isothiocyanate end groups and a viscosity at 25 ~C ranging from 0.02 to 0.4 Pa.s; 2) Providing a second component B comprising a polythiourethane prepolymer having thiol (SH) end groups and a viscosity at 25 ~C ranging from 0.2 to 2.0 Pa.s; 3) Mixing together first and second components A and B and filling a moulding cavity of a casting mould assembly with the resulting mixture ; 4) Curing said mixture to obtain a transparent solid substrate, said curing step comprising: a) a first step for polymerizing said mixture to obtain a gel within 1 to 10 minutes; and b) a second step of post-curing the gel to obtain the transparent solid substrate; and 5) Recovering the transparent solid substrate from the mould.

    57.
    发明专利
    未知

    公开(公告)号：AT344809T

    公开(公告)日：2006-11-15

    申请号：AT02787553

    申请日：2002-11-04

    Applicant: ESSILOR INT

    Inventor： KEITA GABRIEL ,  OBORDO JOEY OLIVEROS ,  MCCLIMANS PAMELA ANNE ,  TURSHANI YASSIN YUSEF

    IPC: C08G18/72 ,  C08G18/10 ,  C08G18/38 ,  G02B1/04

    Abstract: A method of fast curing polythiourethane transparent casted substrate, usable for making optical articles such as ophthalmic lenses, which comprises the steps of: 1) Providing a first component A comprising a polythiourethane prepolymer having isocyanate or isothiocyanate end groups and a viscosity at 25° C. ranging from 0.02 to 0.4 Pa.s; 2) Providing a second component B comprising a polythiourethane prepolymer having thiol (SH) end groups and a viscosity at 25° C. ranging from 0.2 to 2.0 Pa.s; 3) Mixing together first and second components A and B and filling a moulding cavity of a casting mould assembly with the resulting mixture; 4) Curing said mixture to obtain a transparent solid substrate, said curing step comprising: a) a first step for polymerizing said mixture to obtain a gel within 1 to 10 minutes; and b) a second step of post-curing the gel to obtain the transparent solid substrate; and 5) Recovering the transparent solid substrate from the mould.

    58.
    发明专利
    未知

    公开(公告)号：DE60207464D1

    公开(公告)日：2005-12-29

    申请号：DE60207464

    申请日：2002-03-20

    Applicant: ESSILOR INT

    Inventor： KEITA GABRIEL ,  TURSHANI YASSIN YUSEF

    IPC: G02B3/00 ,  B29C33/00 ,  B29C37/04 ,  B29C39/02 ,  B29C39/24 ,  B29D11/00 ,  B29L11/00

    Abstract: The method for making an optical lens which comprises : filling a molding cavity vertically oriented and defined by two mold pieces at the periphery of which is disposed an annular closure member with a polymerizable synthetic composition through a disposable check valve provided in the closure member ; polymerizing the composition to form the lens ; and recovering the lens with the disposable check valve emprisonned within the polymerized composition at the periphery thereof.

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