Artículo óptico que comprende un revestimiento anti-vaho temporal basado en surfactantes de sorbitano

    公开(公告)号:ES2564539T3

    公开(公告)日:2016-03-23

    申请号:ES11771116

    申请日:2011-10-14

    Abstract: Un artículo óptico que comprende un sustrato que tiene al menos una superficie principal revestida con un revestimiento antirreflejo y, directamente en contacto con dicho revestimiento antirreflejo, un revestimiento precursor de un revestimiento anti-vaho obtenido a través del injerto sobre dicho revestimiento antirreflejo de al menos un compuesto B que lleva un grupo polioxialquileno, estando revestido dicho revestimiento precursor del revestimiento anti-vaho con una película de surfactante de modo que forme un revestimiento anti-vaho, caracterizado por que dicha película de surfactante contiene al menos un surfactante A que tiene un anillo de sorbitano con n de sus cuatro grupos hidroxilo hechos funcionales con los mismos o diferentes grupos polioxialquileno con terminaciones OH, y p de sus cuatro grupos hidroxilo hechos funcionales con los mismos o diferentes grupos R' de fórmula: -(RdO)z-(Y)n2-R' en la que Rd es un grupo alquileno, z es un número entero >= 1, Y es un grupo divalente, n2 es 0 ó 1, y R' es un grupo hidrocarbonado saturado que tiene de 12 a 19, preferiblemente de 13 a 19 átomos de carbono, siendo n y p números enteros de tal modo que n >= 2 ó 3 y p >=1 ó 2, con n + p >= 4.

    OPTICAL ARTICLE COMPRISING A TEMPORARY ANTIFOG COATING BASED ON SORBITAN SURFACTANTS

    公开(公告)号:CA2856186A1

    公开(公告)日:2013-04-18

    申请号:CA2856186

    申请日:2011-10-14

    Applicant: ESSILOR INT

    Abstract: The present invention relates to an optical article comprising a substrate having a main surface coated with an antireflection coating and, directly contacting said antireflection coating, a precursor coating of an antifog coating obtained through the grafting on said antireflection coating of at least one compound B bearing a polyoxyalkylene group, said coating precursor of the antifog coating being coated with a surfactant film so as to form an antifog coating. The surfactant film contains at least one surfactant A having a sorbitan ring hydroxyl groups functionalized with OH-terminated polyoxyalkylene groups and R1 groups of formula: -(RdO)z-(Y)n2-R', in which Rd is an alkylene group, z is an integer > 1, Y is a divalent group, n2 is 0 or 1 and R' is a saturated hydrocarbon group having 12 to 1 9, preferably 1 3 to 19 carbon atoms. Surfactants A provide a visual means to know whether or not the antifogging effect will still be long-lasting.

    5.
    发明专利
    未知

    公开(公告)号:AT508379T

    公开(公告)日:2011-05-15

    申请号:AT02805810

    申请日:2002-12-26

    Applicant: ESSILOR INT

    Abstract: An optical item comprising an organic or mineral glass substrate ( 1 ) and a transparent polymeric material layer ( 3 ), characterized in that it comprises at least one intermediate layer ( 2 ) in direct contact with one main side of the substrate and the polymeric material layer, the intermediate layer(s) being made of particles of at least one colloidal mineral oxide and optionally of a binder, such (an) intermediate layer(s) having an initial porosity, and the initial porosity of the intermediate layer(s) being filled either by material from the polymeric material layer or by the substrate material if the latter is made in an organic glass and, optionally partly by the binder when present, so that the intermediate layer(s), after initial porosity filling, each represent a quarter waveplate with a wavelength in the range from 400 to 700 nm, preferably from 450 to 650 nm.

    6.
    发明专利
    未知

    公开(公告)号:AT459892T

    公开(公告)日:2010-03-15

    申请号:AT07821051

    申请日:2007-10-09

    Applicant: ESSILOR INT

    Abstract: Lens holder (1) for holding an optical lens (2) during dip coating, which comprises: - holding means (3) for holding the optical lens, and - supporting means for operating the holding means, said holding means (3) comprising a first arm (3a) and a second arm (3b) facing each other and movable toward and away from one another, each arm being connected on one part (4) to the supporting means, and on the other part (5), through connecting means (6), to accommodating means (7) facing each other, the connecting means (6) being such that each accommodating means (7) is movable with at least one degree of freedom.

    7.
    发明专利
    未知

    公开(公告)号:FR2834345B1

    公开(公告)日:2004-03-26

    申请号:FR0116952

    申请日:2001-12-27

    Applicant: ESSILOR INT

    Abstract: An optical item comprising an organic or mineral glass substrate ( 1 ) and a transparent polymeric material layer ( 3 ), characterized in that it comprises at least one intermediate layer ( 2 ) in direct contact with one main side of the substrate and the polymeric material layer, the intermediate layer(s) being made of particles of at least one colloidal mineral oxide and optionally of a binder, such (an) intermediate layer(s) having an initial porosity, and the initial porosity of the intermediate layer(s) being filled either by material from the polymeric material layer or by the substrate material if the latter is made in an organic glass and, optionally partly by the binder when present, so that the intermediate layer(s), after initial porosity filling, each represent a quarter waveplate with a wavelength in the range from 400 to 700 nm, preferably from 450 to 650 nm.

    LINGETTE SECHE A ACTION ANTIBUEE ET/OU NETTOYANTE

    公开(公告)号:FR3001117A1

    公开(公告)日:2014-07-25

    申请号:FR1350459

    申请日:2013-01-18

    Applicant: ESSILOR INT

    Abstract: La présente invention concerne une lingette sèche comprenant un tissu en microfibres tissé ou tricoté ayant des microfibres de polymère hydrophile et des microfibres de polymère lipophile, imprégné d'au moins un tensioactif dont l'équilibre hydrophile/lipophile (HLB) est supérieur ou égal à 5. Ces lingettes peuvent être utilisées pour réaliser le nettoyage de surface de substrats et/ou conférer des propriétés antibuée à des surfaces hydrophiles.

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